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HT9315 Series 15-Memory Tone/Pulse Dialer
Patent Number: 64097, 86474, 113235(R.O.C.), 5424740(U.S.A.)
Features
* Universal specification * Operating voltage: 2.0V~5.5V * Low standby current * Low memory retention current: 0.1mA (Typ.) * Tone/pulse switchable * Interface with LCD driver * 32 digits for redialing * 32 digits for the SA memory dialing * One-key redialing * Pause and P(R)T key for PBX * 45 keyboard matrix * 3.58MHz crystal or ceramic resonator * Hand-free control * Hold-line control * Pause, P(R)T can be saved for redialing * Lock function * Keytone function * Resistor options: - M/B ratio - Flash function and flash time (86ms~600ms) - Pause and P(R)T duration - Pulse number - Keyboard operated IDD lock function - Keyboard form * HT9315A/HT9315AL: 18-pin DIP package
HT9315B/HT9315BL: 22-pin SKDIP package HT9315C/HT9315CL: 20-pin DIP package HT9315D/HT9315DL: 24-pin SKDIP package
General Description
The HT9315 series tone/pulse dialers are CMOS LSIs for telecommunication systems. They are designed to meet various dialing specifications through resistor option matrix. The HT9315 series are offered in two different versions. They are HT9315x normal version and HT9315xL lock version, with keyboard-operated IDD lock function. The two versions also supply the following functions: Hold-line, Hand-free and LCD dialing number display interface, all of which are suitable for feature phone applications.
Selection Table
Function Item HT9315x HT9315A HT9315B HT9315C HT9315D HT9315xL HT9315AL HT9315BL HT9315CL HT9315DL Lock Function (Normal version) 3/4 3/4 3/4 3/4 3/4 O 3/4 O 3/4 O 3/4 O 3/4 3/4 O O 98ms 20 DIP 24 SKDIP 18 DIP 22 SKDIP Hold-Line Hand-Free LCD Interface Min. Flash Time Package
(Mechanical and Keyboard Operated Lock Version) Lock 0 Lock 0, 9 Lock All Keyboard Operated Lock 3/4 O 3/4 O 3/4 O 3/4 O 3/4 3/4 O O 98ms 20 DIP 24 SKDIP 18 DIP 22 SKDIP
Rev. 1.20
1
October 1, 2002
HT9315 Series
Block Diagram
C1 Key C o lu m n C5
.SM
C o n tro l
C heck
DOUT CLO CK Tone O ut P u ls e O ut DTM . PO XM UTE
Key . u n c tio n E ncoder
W RM C o u n te r
SRAM
Tone E ncoder C o n v e rte r
ADDRL R1 Key Row R4 E ncoder . la s h
D ebounce
M o d e In
H D /H .
HKS H.I HDI HDO H.O MODE
X1 X2
D iv id e r
C lo c k G e n e ra to r
M /B
T im e r K e y to n e G e n e ra to r
Pin Assignment
HT9315x/xL version
HDI HDI C1 C1 1 2 3 4 5 6 7 8 9 C2 C3 C4 C5 X1 X2 XM UTE VSS 18 17 16 15 14 13 12 11 10 R4 R3 R2 R1 MODE DTM . PO HKS VDD C2 C3 C4 C5 X1 X2 XM UTE VSS H.I 9 10 11 8 7 6 5 4 3 2 1 22 21 20 19 18 17 16 15 14 13 12 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13
HDO R4 R3 R2 R1 MODE DTM . PO HKS VDD H.O CLO CK
HDO R4 R3 R2 R1 MODE DTM . PO HKS VDD H.O
C1 1 2 3 4 5 6 7 8 9 10 C2 C3 C4 C5 X1 X2 XM UTE VSS DOUT 20 19 18 17 16 15 14 13 12 11
C1
R4 R3 R2 R1 MODE DTM . PO HKS VDD CLO CK
C2 C3 C4 C5 X1 X2 XM UTE VSS H.I DOUT
H T 9 3 1 5 A /A L 1 8 D IP -A
H T 9 3 1 5 B /B L 2 2 S K D IP -A
H T 9 3 1 5 C /C L 2 0 D IP -A
H T 9 3 1 5 D /D L 2 4 S K D IP -A
Keyboard Information
. o rm A
C1 R1 1 4 7 * /T 0 # 8 9 5 6 A R /P R2 R3 R4 C2 2 3 C3 C4 SA . C5 EM1 EM2 EM3 ST R1 R2 R3 R4 7 * /T 0 # R 4 8 9 A
. o rm
B
C1 1 5 6 . C2 2 3 P C3 C4 C5 EM1 EM2 EM3 ST
Rev. 1.20
2
October 1, 2002
HT9315 Series
Pin Description
Pin Name I/O Internal Connection Description These pins form a 45 keyboard matrix which can perform keyboard input detection and dialing specification setting functions. When on-hook (HKS=high) all the pins are set high. While off-hook the column group (C1~C5) remains low and the row group (R1~R4) is set high for key input detection. An inexpensive single contact 45 keyboard can be used as an input device. Pressing a key connects a single column to a single row, and actuates the system oscillator that results in a dialing signal output. If more than two keys are pressed at the same time, no response occurs. The key-in debounce time is 20ms. Refer to the keyboard information for keyboard arrangement and to the functional description for dialing specification selection.
C1~C5 R1~R4
I/O
CMOS IN/OUT
X1
I
X2
O
The system oscillator consists of an inverter, a bias resistor and the necessary load capacitor on chip. Connecting a standard 3.579545MHz crystal or ceramic OSCILLATOR resonator to the X1 and X2 terminals can implement the oscillator function. The oscillator is turned off in the standby mode, and is actuated whenever a keyboard entry is detected. NMOS OUT XMUTE is an NMOS open drain structure pulled to VSS during dialing signal transmission. Otherwise, it is an open circuit. XMUTE is used to mute the speech circuit when transmitting the dial signal. This pin is used to monitor the status of the hook-switch and its combination with HFI/HDI can control the PO pin output to make or break the line. HKS=VDD: On-hook state (PO=low). Except for HFI/HDI (hand-free/hold-line control input), other functions are all disabled. HKS=VSS: Off-hook state (PO=high). The chip is in the standby mode and ready to receive the key input. This pin is a CMOS output structure which by receiving the HKS and HFO/HDO signals, control the dialer to connect or disconnect the telephone line. PO outputs a low to break line when HKS is high (on-hook) and HFO/HDO is low. PO outputs a high to make line when HKS is low (off-hook) or HFO is high or HDO is high. During the off-hook state, this pin also outputs the dialing pulse train in pulse mode dialing. While in the tone mode, this pin is always high. This is a three-state input/output pin, use for dialing mode selection, either Tone mode or Pulse mode, 10pps/20pps MODE=VDD: Pulse mode, 10pps MODE=OPEN: Pulse mode, 20pps MODE=VSS: Tone mode During the pulse mode dialing, switching this pin to the tone mode changes the subsequent digit entry to tone mode. When the chips are in tone mode, switching to pulse mode will also be recognized. This pin is active only when the chip transmits tone dialing signals. Otherwise, it always outputs a low. The pin outputs tone signals to drive the external transmitter amplifier circuit. The load resistor should not be less than 5kW. This pin is a Schmitt trigger input structure. Active low. Applying a negative going pulse to this pin can toggle the HDO output once. An external RC network is recommended for input debouncing. The pull-high resistance is 200kW typ. The HDO is a CMOS output structure. Its output is toggle- controlled by a negative transition on HDI. When HDO is toggled high, PO keeps high to hold the line. The hold function can be released by setting HFO high or by an on/off hook operation or by another HDI input. Refer to the functional description for the hold-line function.
XMUTE
O
HKS
I
CMOS IN
PO
O
CMOS OUT
MODE
I/O
CMOS IN/OUT
DTMF
O
CMOS OUT
HDI
I
CMOS IN Pull-High
HDO
O
CMOS OUT
Rev. 1.20
3
October 1, 2002
HT9315 Series
Pin Name I/O Internal Connection CMOS IN Pull-Low Description This pin is a Schmitt trigger input structure. Active high. Applying a positive pulse to HFI can toggle the HFO once and hence control the hand-free function. The pull-low resistance of HFI is 200kW typ. An external RC network is recommended for input debouncing. The HFO is a CMOS output structure. Its output is toggle- controlled by a positive transition on HFI pin. When HFO is high, the hand-free function is enabled and PO outputs a high to connect the line. The hand-free function can be released by setting HDO high or by an on-off-hook operation or by another HFI input. Refer to the functional description for the hand-free functional operation. NMOS open drain output pin. It outputs the BCD code of the dialing digits to the LCD driver chip (HT16XX series) or MCU for dialing number display. Refer to the functional description for the detailed timing. NMOS open drain output. When dialing, it outputs a series of pulse trains for DOUT data synchronization. DOUT data is valid at the falling edge of the clock. Positive power supply, 2.0V~5.5V for normal operation Negative power supply, ground
HFI
I
HFO
O
CMOS OUT
DOUT
O
NMOS OUT
CLOCK VDD VSS
O 3/4 3/4
NMOS OUT 3/4 3/4
Approximate internal connection circuits
C M O S IN /O U T
VDD
NMOS OUT
C M O S IN
CMOS OUT
VDD
C M O S IN P u ll- H ig h
C M O S IN P u ll- L o w
X1 20P
O S C IL L A T O R
X2 10M 10P EN
Absolute Maximum Ratings
Supply Voltage ...........................................-0.3V to 6V Storage Temperature ...........................-50C to 125C Input Voltage .............................. VSS-0.3 to VDD+0.3V Operating Temperature ..........................-20C to 75C
Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maximum Ratings may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
Rev. 1.20
4
October 1, 2002
HT9315 Series
Electrical Characteristics
Symbol VDD IDD Parameter Operating Voltage Operating Current Test Conditions VDD 3/4 Pulse 2.5V Tone ISTB VR IR VIL VIH IXMO IOLXM IHKS RHFI RHDI IOH1 IOL1 IOH2 IOL2 IOH3 IOL3 TFP TRP TDB TBRK FOSC Standby Current Memory Retention Voltage Memory Retention Current Input Low Voltage Input High Voltage XMUTE Leakage Current XMUTE Sink Current HKS Pin Input Current HFI Pull-Low Resistance HDI Pull-High Resistance Keypad Pin Source Current Keypad Pin Sink Current HFO Pin Source Current HFO Pin Sink Current HDO Pin Source Current HDO Pin Sink Current Pause Time After Flash One-key Redialing Pause Time Key-in Debounce Time Break Time for One-key Redialing System Frequency 1V 3/4 1V 3/4 3/4 3/4 2.5V 2.5V 2.5V 2.5V 2.5V 2.5V 2.5V 2.5V 2.5V 2.5V 3/4 3/4 3/4 3/4 3/4 On-hook 3/4 3/4 VXMUTE=12V, No entry VXMUTE=0.5V VHKS=2.5V VHFI=2.5V VHDI=0V VOH=0V VOL=2.5V VOH=2V VOL=0.5V VOH=2V VOL=0.5V Control key Digit key One-key redialing 3/4 One-key redialing Crystal=3.5795MHz Conditions 3/4 Off-hook Keypad entry No load Min. 2 3/4 3/4 3/4 1 3/4 VSS 0.8VDD 3/4 1 3/4 3/4 3/4 -4 200 -1 1 -1 1 3/4 3/4 3/4 3/4 3/4 3.5759 0.1 3/4 3/4 3/4 3/4 3/4 200 200 3/4 400 3/4 3/4 3/4 3/4 0.2 1 1 20 1.2 3.5795 FOSC=3.5795MHz, Ta=25C Typ. 3/4 0.2 0.6 3/4 Max. 5.5 1 2 1 5.5 0.2 0.2VDD VDD 1 3/4 0.1 3/4 3/4 -40 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3.5831 Unit V mA mA mA V mA V V mA mA mA kW kW mA mA mA mA mA mA s s ms s MHz
On-hook, no load No entry 3/4
Rev. 1.20
5
October 1, 2002
HT9315 Series
Pulse Mode Electrical Characteristics
Symbol IPOH IPOL PR Parameter Test Conditions VDD Conditions Min. -0.2 0.2 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 FOSC=3.5795MHz, Ta=25C Typ. 3/4 0.6 10 20 33:66 40:60 40 (10pps) 20 (20pps) 33 (10pps) 17 (20pps) 800 500 33 (10pps) 17 (20pps) 40 (10pps) 20 (20pps) 66 (10pps) 33 (20pps) 60 (10pps) 30 (20pps) Max. 3/4 3/4 3/4 3/4 3/4 % No resistor is linked between R2 and C1 M/B ratio=40:60 TPDP Pre-digit-pause Time 3/4 M/B ratio=33:66 3/4 Pulse rate=10pps Pulse rate=20pps A resistor is linked between R2 and C1 No resistor is linked between R2 and C1 A resistor is linked between R2 and C1 No resistor is linked between R2 and C1 3/4 3/4 ms 3/4 3/4 3/4 3/4 ms 3/4 3/4 ms 3/4 ms Unit mA mA pps
PO Output Source Current 2.5V VOH=2V PO Output Sink Current Pulse Rate 2.5V VOL=0.5V 3/4 MODE pin is connected to VDD MODE pin is opened A resistor is linked between R2 and C1
M/B
Make/Break Ratio
3/4
TIDP
Inter-digit-pause Time
TM
Pulse Make Duration
3/4
TB
Pulse Break Duration
3/4
Tone Mode Electrical Characteristics
Symbol VTDC ITOL VTAC RL ACR THD TTMIN TITPM Parameter DTMF Output DC Level DTMF Sink Current DTMF Output AC Level DTMF Output Load Column Pre-emphasis Tone Signal Distortion Minimum Tone Duration Minimum Inter-tone Pause Test Conditions VDD 3/4 2.5V VDTMF=0.5V 3/4 Row group, RL=5kW Conditions 3/4 Min. 0.45VDD 0.1 0.12 5 1 3/4 3/4 3/4
FOSC=3.5795MHz, Ta=25C Typ. 3/4 3/4 0.155 3/4 2 -30 82.5 85.5 Max. 0.7VDD 3/4 0.18 3/4 3 -23 3/4 3/4 Unit V mA Vrms kW dB dB ms ms
2.5V THD-23dB 2.5V Row group=0dB 2.5V RL=5kW 3/4 3/4 Auto-redial Auto-redial
THD (Distortion) (dB) = 20 log
(
V12 + V22 + ...+ Vn2 / Vi2 + Vh2
)
Vi, Vh: Row group and column group signals V1, V2, ... Vn: Harmonic signals (BW=300Hz~3500Hz)
Rev. 1.20
6
October 1, 2002
HT9315 Series
Functional Description
Keyboard matrix C1~C5 and R1~R4 form a keyboard matrix. Together with a standard 45 keyboard, the keyboard matrix is used for dialing entries. In addition, the keyboard matrix provides resistor option for different dialing specification selections. The keyboard arrangement for each of the HT9315 series are shown in the Keyboard Information. Tone frequency Tone Name R1 R2 R3 R4 C1 C2 C3 Output Frequency (Hz) Specified 697 770 852 941 1209 1336 1477 Actual 699 766 847 948 1215 1332 1472 % Error +0.29% -0.52% -0.59% +0.74% +0.50% -0.30% -0.34% M/B ratio selection table RK12 No Yes M/B Ratio (%) 40:60 33.3:66.6
Flash function/time (duration) selection table
* HT9315x
RK13 No No Yes Yes
* HT9315xL
RK14 No Yes No Yes
Flash Function Control Digit Digit Digit
Flash Time (TF) 600ms 600ms 98ms 300ms
RK13 No No Yes
RK14 No Yes No Yes
Flash Function Control Control Control Control
Flash Time (TF) 600ms 600ms 98ms 300ms
Note:% Error does not contain the crystal frequency drift Dialing specification selection Various dialing specifications can be selected by adding resistors across keyboard matrix pins. The allowable option resistor connections are shown on the table.
C1 R1 R2 R3 R4 R K12 R K13 R K14 R K21 R K31 R K41 R K51 C2 C3 C4 C5
Yes
Pause and P(R)T duration selection table RK21 No Yes TP (sec) 3.6 2 TP(R)T (sec) 3.6 1
Pulse number selection table
* This table shows pulse number selections for
HT9315x. The table for HT9315xL is used to select IDD lock function. RK31 No No Yes Yes RK41 No Yes No Yes Pulse Number N N+1 10-N 3/4
All the resistors are 330kW. The resistor option functions and the default specifications without option resistors are listed below. Option Resistor RK12 RK13 RK14 RK21 RK31 RK41 RK51 Option Function Default (No Resistor)
Make/Break Ratio 40:60 Selection Flash Function and Flash= control function Flash Time Selection Flash time= 600ms Pause & P(R)T Duration Selection Pulse Number Selection or IDD Lock Selection Keypad Form TP= 3.6s TP(R)T= 3.6s N or Keyboard Operated Lock FormA
Rev. 1.20
7
October 1, 2002
HT9315 Series
Pulse number table Keypad Digit Key 1 2 3 4 5 6 7 8 9 0 */T # Output Pulse Number Normal N 1 2 3 4 5 6 7 8 9 10 P(R)T Ignored New Zealand (10N) 9 8 7 6 5 4 3 2 1 10 P(R)T Ignored Sweden/ Denmark (N+1) 2 3 4 5 6 7 8 9 10 1
H H H H L L L L H L X X X X L H X : D o n 't c a r e A n:U nchanged L H L X L H L X X L X L L H L H L X L
Hold-line function operation
* Hold-line function execution
When HDO is low, a falling edge triggers the HDI, enabling the Hold-line function (HDO becomes high). The XMUTE remains low when HDO is high.
* Reset Hold-line function
When HDO is high, the Hold-line function is enabled and can be reset by: Off-hook

Applying a falling edge to HDI Changing the HFO pin from low to high
* Hold-line function table
C u rre n t S ta te HKS HDO L X L H.O H.I L H In p u t HDI HKS An L H L L L H L An L An An L An An An H An N e x t S ta te HDO H.O An L An L An L An An H
P(R)T Ignored
The keyboard arrangement selection table RK51 No Yes Keypad Form Form A (see keyboard information) Form B (see keyboard information)
Hand-free function operation
* Hand-free function execution
When HFO is low, a rising edge triggers the HFI, enabling the Hand-free function (HFO becomes high).
* Reset Hand-free function
H : L o g ic H IG H L : L o g ic L O W
: R is in g e d g e : . a llin g e d g e
DOUT BCD code When dialing, the corresponding 4-bit BCD codes are serially presented on DOUT from MSB to LSB. The data of DOUT is valid at the falling edge of the CLOCK pin. The following table lists the BCD codes corresponding to the keyboard input. Key-In
In p u t N e x t S ta te HKS An L L H L L L H L An L An H.O HDO An L An L An L An An H
When HFO is high, the Hand-free function is enabled and can be reset by:

Off-hook Applying a rising edge to HFI Changing the HDO pin from low to high
* Hand-free function table
C u rre n t S ta te HKS H H H H L L L L X X L L X : D o n 't c a r e A n:U nchanged H L X X H L L X H H X X L L X H H L H L L X H H.O L X H HDO HDI H
BCD Code 0001 0010 0011 0100 0101 0110 0111
Key-In 8 9 0 */T # F P
BCD Code 1000 1001 1010 1101 1100 1011 1110
1 2 3 4 5 6 7
H.I
An L An An An H An
H : L o g ic H IG H L : L o g ic L O W
: R is in g e d g e : . a llin g e d g e
Rev. 1.20
8
October 1, 2002
HT9315 Series
LOCK function The function aims to detect locked dialing number to prevent a long distance call. The dialing output of the chip is disabled if the first input key after on-off-hook is the locked number when the lock function is enabled. The lock function selection is listed below. This function is implemented on the HT9315xL. The HT9315x does not support this function. RK31 No No Yes Yes RK41 No Yes No Yes Function Keyboard operated IDD lock Lock 0 Lock 0, 9 All keys are locked
*F
The flash key can be selected as a digit or as a control key by the option resistors RK13 & RK14. Pressing the F key will force the PO pin to be low for the TF duration and is then followed by TFP (sec). TF can also be selected by RK13, RK14.
*P
Pause key. The execution of this key pauses the output for the TP duration. TP can be selected by RK21.
*R
Redial key. Executes redialing as well as one-key redial function.
* ST
Key definition
* 0,1,2,3,4,5,6,7,8,9 keys
These are dialing number input keys for both the pulse mode and the tone mode operations.
* */T
Store key. The execution of this key actuates the store memory function with (or without) dialing output and it can store lock number with personal code in IDD lock operation. During the dialing signal transmission, the ST key is inhibited.
* R/P
This key executes the P(R)T function and waits a TP(R)T duration in the pulse mode. On the other hand, the */T key executes the * function in the tone mode.
*#
Redial and pause function key. If it is pressed as the first key after off-hook, this key executes the redial function. Otherwise, it works as the pause key.
* EM1~EM3
This is a dialing signal key for the tone mode only, no response in the pulse mode.
* SA
One-touch memory dialing key. For speed-calling convenience, they provide memory dialing in either pulse or tone mode.
*A
Pressing this key can save the preceding dialing telephone numbers. The saved number is redialed if it is pressed again. SA will also redial the saved number if it is the first key pressed at the off-hook state. During the dialing signal transmission, the SA key is inhibited.
Auto key. When this key is pressed before pressing any one of the digital keys (0~9) it executes the two-touch memory function.
Rev. 1.20
9
October 1, 2002
HT9315 Series
Keyboard operation The following operations are described under an on/off- hook or on-hook condition with the hand-free active condition.
* N o r m a l d ia lin g P u ls e m o d e ( a ) w ith o u t * /T D2 ... D n K e y b o a r d in p u t: D 1 D ia lin g o u tp u t: D 1 R M :D 1 D 2 ... D n S A M :U nchanged ( b ) w ith * /T
K e y b o a r d in p u t: D1 Dm D2 ... D n * /T D n+1 ...
Tone m ode ( a ) w ith o u t * /T K e y b o a r d in p u t: D 1 D ia lin g o u tp u t: D 1 R M :D 1 D 2 ... D n S A M :U nchanged ( b ) w ith * /T
K e y b o a r d in p u t: D1 Dm D2 ... D n * /T D n+1 ...
D2
... D n
D 2 ... D n
D 2 ... D n
D ia lin g o u tp u t: D 1 RM :D 1 D 2 ... D n
D 2 ... D n T P T P u ls e * /T D n + 1 ... D m
D n + 1 ... D m Tone
D ia lin g o u tp u t: D 1 RM :D 1 D 2 ... D n S A M :U nchanged
D 2 ... D n
* D n + 1 ... D m
* D n + 1 ... D m
S A M :U nchanged
N o te : T h e m a x im u m c a p a c ity o f th e R M m e m o r y is 3 2 d ig its . W h e n m o r e th a n 3 2 d ig its a r e e n te r e d , th e s ig n a l is tr a n s m itte d b u t th e r e d ia l fu n c tio n is in h ib ite d . * R e d ia l P u ls e m o d e ( a ) w ith o u t * /T D 2 ... D n o r R /P ] D 2 ... D n RM c o n te n ts : D 1 K e y b o a r d in p u t: [ R D ia lin g o u tp u t: D 1 R M :U nchanged S A M :U nchanged ( b ) w ith * /T R M c o n te n ts : D 1 D 2 ... D n K e y b o a r d in p u t: [ R D ia lin g o u tp u t: D 1 R M :U nchanged S A M :U nchanged D 2 ... D n P u ls e Tone m ode ( a ) w ith o u t * /T RM c o n te n ts : D 1 D 2 ... D n o r R /P ] D 2 ... D n K e y b o a r d in p u t: [ R D ia lin g o u tp u t: D 1 R M :U nchanged S A M :U nchanged ( b ) w ith * /T * /T T
P
D n + 1 ... D m
T
RM
c o n te n ts : D 1
D 2 ... D n
* /T
D n + 1 ... D m
o r R /P ] D n + 1 ... D m Tone
K e y b o a r d in p u t: [ R o r R /P ] D ia lin g o u tp u t: D 1 D 2 ... D n * D n + 1 ... D m R M :U nchanged S A M :U nchanged
Rev. 1.20
10
October 1, 2002
HT9315 Series
* O n e - k e y r e d ia l P u ls e m o d e ( a ) w ith o u t * /T Tone m ode ( a ) w ith o u t * /T
K e y b o a r d in p u t: D 1
D2
... D n
BRK
R
T
RP
K e y b o a r d in p u t: D 1
D2
... D n
T
BRK
R
T
RP
D ia lin g o u tp u t: D 1 D 2 ... D n T D 1 D 2 ... D n R M : D 1 D 2 ... D n S A M :U nchanged ( b ) w ith * /T K e y b o a r d in p u t: D 1
D ia lin g o u tp u t: D 1 D 2 ... D n ... D n R M : D 1 D 2 ... D n S A M :U nchanged ( b ) w ith * /T K e y b o a r d in p u t: D 1
D1
D2
D2 R
... D n
* /T
D n+1
...
D2
... D n
* /T
D n+1
...
Dm
D ia lin g o u tp u t: D 1
R M :D 1
D 2 . . . D n T P T D n + 1 ... D m P u ls e Tone T B R K T R P D 1 D 2 ... D n T P T P u ls e D n + 1 ... D m Tone D 2 ... D n * /T D n + 1 ... D m
Dm R D ia lin g o u tp u t: D 1 D 2 ... D n
T R M :D 1 D 2 ... D n ... D m
BRK
* D n + 1 ... D m D 2 ... D n * D n+1
T
RP
D1
* D n + 1 ... D m
S A M :U nchanged
S A M :U nchanged N o te : If th e d ia lin g n u m b e r e x c e e d s 3 2 d ig its , r e d ia lin g is in h ib ite d a n d P O = V D D * S A copy P u ls e m o d e ( a ) w ith o u t * /T Tone m ode ( a ) w ith o u t * /T
K e y b o a r d in p u t: D 1
D ia lin g o u tp u t: D 1 RM:D1 SAM:D1 D 2 ... D n D 2 ... D n
D2
... D n
SA
K e y b o a r d in p u t: D 1
D ia lin g o u tp u t: D 1 RM:D1 SAM:D1 D 2 ... D n D 2 ... D n
D2
... D n
SA
D 2 ... D n
D 2 ... D n
( b ) w ith * /T K e y b o a r d in p u t: D 1
D2 SA
... D n
* /T
D n+1
...
( b ) w ith * /T K e y b o a r d in p u t: D 1
D2
... D n
*
* /T
D n+1
...
Dm
D ia lin g o u tp u t: D 1 RM:D1 SAM:D1 D 2 ... D n D 2 ... D n
D 2 ... D n T P T D n + 1 ... D m P u ls e Tone * /T D n + 1 ... D m * /T D n + 1 ... D m
Dm SA D ia lin g o u tp u t: D 1 D 2 ... D n
R M :D 1 SAM :D 1 D 2 ... D n D 2 ... D n
D n + 1 ... D m
* D n + 1 ... D m * D n + 1 ... D m
N o te : T h e m a x im u m c a p a c ity o f th e R M m e m o r y is 3 2 d ig its . W h e n m o r e th a n 3 2 d ig its p lu s th e " S A " k e y a r e e n te r e d , th e S A V E fu n c tio n w ill n o t b e e x e c u te d , a n d a ll th e e x is tin g d a ta in th e s a v e m e m o r y w ill n o t b e c h a n g e d .
Rev. 1.20
11
October 1, 2002
HT9315 Series
* S A d ia lin g P u ls e m o d e ( a ) w ith o u t * /T D2 SA D 2 ... D n ... D n SAM c o n te n ts : D 1 K e y b o a r d in p u t: D ia lin g o u tp u t: D 1 R M : U nchanged S A M : U nchanged ( b ) w ith * /T S A M c o n te n ts : D 1 K e y b o a r d in p u t: D ia lin g o u tp u t: D 1 R M : U nchanged S A M : U nchanged * . la s h . la s h a s a d ig ita l k e y D1 Dm D2 ... D n T
.
Tone m ode ( a ) w ith o u t * /T SAM c o n te n ts : D 1 SA D 2 ... D n D 2 ... D n K e y b o a r d in p u t: D ia lin g o u tp u t: D 1 R M : U nchanged S A M : U nchanged ( b ) w ith * /T S A M c o n te n ts : D 1
D 2 ... D n SA D 2 ... D n P u ls e T
* /T
P T
D n + 1 ... D m D n + 1 ... D m Tone
D 2 ... D n
* D n + 1 ... D m * D n + 1 ... D m
K e y b o a r d in p u t: S A D ia lin g o u tp u t: D 1 D 2 ... D n R M :U nchanged S A M :U nchanged
. la s h a s a c o n tr o l k e y K e y b o a r d in p u t: D1 Dm D2 ... D n T
.
( a ) T h e in te r v e n ie n t k e y K e y b o a r d in p u t: D ia lin g o u tp u t: D 1 Dm R M : D 1 D 2 ... D n S A M :U nchanged ( b ) T h e fir s t k e y K e y b o a r d in p u t: D ia lin g o u tp u t: T
.
. T
.P
Dn+1
...
. T
.P
Dn+1
... D ia lin g o u tp u t: D 1 Dm R M : D n + 1 ... D m S A M :U nchanged N o te : T
.
D 2 ... D n
D n + 1 ...
D 2 ... D n
D n + 1 ...
: b r e a k a fla s h tim e
. T
D1
.P
D2 D1
... D n D 2 ... D n
R M :U nchanged S A M :U nchanged * P ause K e y b o a r d in p u t: D ia lin g o u tp u t: D 1 R M :D 1 D 2 ... D n P S A M :U nchanged D1 D2 ... D n T
P
[P
o r R /P ]
Dn+1
... D m
D 2 ... D n
D n + 1 ... D m
D n + 1 ... D m
Rev. 1.20
12
October 1, 2002
HT9315 Series
* M e m o ry s to re O n e -to u c h m e m o ry s to re D1 D2 ... D n ST EMa ( a ) w ith o u t d ia lin g o u tp u t K e y b o a r d in p u t: S T D ia lin g o u tp u t: EM a: D1 RM:D1 D2 D2 ... D n ... D n D2 ... D n ST ST EMa T w o -to u c h m e m o ry s to re ( a ) w ith o u t d ia lin g o u tp u t K e y b o a r d in p u t: S T D ia lin g o u tp u t: M a: D1 RM:D1 D2 D2 ... D n ... D n D2 ... D n ST ST a D1 D2 ... D n ST a
( b ) w ith d ia lin g o u tp u t K e y b o a r d in p u t: D 1 D ia lin g o u tp u t: D 1 EM a: D1 RM:D1 D2 D2 ... D n ... D n
( b ) w ith d ia lin g o u tp u t K e y b o a r d in p u t: D 1 D ia lin g o u tp u t: D 1 M a: D1 RM:D1 D2 D2 ... D n ... D n
D 2 ... D n
D 2 ... D n
S A M :U nchanged
S A M :U nchanged
N o t e : If th e d ia lin g n u m b e r e x c e e d s 3 2 d ig its , th e m e m o r y s to r e is in h ib ite d . H o w e v e r , if th e d ia lin g n u m b e r is n o t m o r e th a n 3 2 d ig its th e m e m o r y w ill s to r e a m a x . o f 1 8 d ig its . EM a=EM 1~EM 3,M a=M 0~M 9,a=0~9 * M e m o r y d ia lin g E M a c o n te n ts : D 1 K e y b o a r d in p u t: D ia lin g o u tp u t: D 1 E M a:U nchanged RM :D1 D 2 ... D n S A M :U nchanged N o te : E M a = E M 1 ~ E M 3 . M a = M 0 ~ M 9 , a = 0 ~ 9 . * C h a in d ia lin g E M 1 c o n te n ts : D 1 D 2 ... D n E M 2 c o n te n ts : D n + 1 ... D m M 1 c o n te n ts : D m + 1 ... D l M 2 c o n te n ts : D l+ 1 ... D k K e y b o a r d in p u t: D1 D2 D3 D3 A 1 A 2 EM1 D1 EM2 D 2 ... D n D n + 1 ... D m D n + 1 ... D m D ia lin g o u tp u t: D 1 D 2 RM :D1 D2 D3 D m + 1 ... D l D l+ 1 ... D k D1 D 2 ... D n EMa D 2 ... D n M a c o n te n ts : D 1 K e y b o a r d in p u t: D ia lin g o u tp u t: D 1 M a:U nchanged RM :D1 D 2 ... D n S A M :U nchanged D 2 ... D n A a D 2 ... D n
E M 1 /E M 2 /M 1 /M 2 : U n c h a n g e d D m + 1 ... D l D l+ 1 ... D k D 2 ... D n S A M :U nchanged N o t e : T h e m a x im u m c a p a c ity o f th e R M m e m o r y is 3 2 d ig its . W h e n th e d ia lin g n u m b e r e x c e e d s 3 2 d ig its , r e d ia lin g is in h ib ite d a n d P O = V D D * N o te : RM SA D1 Dn :R M: D2 +1 e d ia l m S ave d ... D n : ... D m : e ia 0 0 m o ry lin g m e m o r y ~9 ~ 9 , *, #
Rev. 1.20
13
October 1, 2002
HT9315 Series
* K e y b o a r d o p e r a te d ID D lo c k fu n c tio n ( 2 lo c k e d n u m b e r s o r a m a x . o f 3 d ig its /n u m b e r s )
P e r s o n a l/L o c k N o .1 /L o c k N o .2 in p u t o p e r a tio n ( a ) P e r s o n a l c o d e d o e s n 't e x is t S to re s P e rs o n a l C o d e : S T S to re s L o c k N o .1 : S T S to re s L o c k N o .2 : S T ( b ) P e r s o n a l c o d e e x is t C h a n g e s P e rs o n a l C o d e : S T C h a n g e s L o c k N o .1 : S T D1 D2 D3 ST # ST D4 D5 D6 ST *0 ( O ld p e r s o n a l c o d e ) D1 D2 D3 ST # ST # ST (N e w p e rs o n a l c o d e ) D4 D5 D6 ST * 1 (L o c k N o .1 ) D7 D8 D9 ST *2 D4 D7 D1 D5 D8 D2 D6 D9 D3 ST ST ST *1 *2 *0
(P e rs o n a l c o d e ) C h a n g e s L o c k N o .2 : S T D 1 D 2 D 3 S T
(L o c k N o .2 ) (P e rs o n a l c o d e ) C h a n g e s P e r s o n a l C o d e , L o c k N o .1 a n d L o c k N o .2 a t o n e tim e ST D1 D2 D3 ST # ST D4 D5 D6 ST * 0 ( c o n tin u e d ) ST *2 ( O ld p e r s o n a l c o d e ) (N e w p e rs o n a l c o d e ) ST D7 D8 D9 ST * 1 ST D10 D11 D12 (L o c k N o .1 ) P e r s o n a l/L o c k N o .1 /L o c k N o .2 c a n c e l o p e r a tio n C a n c e ls P e r s o n a l c o d e : S T C a n c e ls L o c k N o .1 : S T C a n c e ls L o c k N o .2 : S T D1 D1 D1 D2 D2 D2 D3 D3 D3 ST ST # # ST ST ST # # # ST 1 2 # 0 (L o c k N o .2 )
T e m p o r a r y r e le a s e b o th o f th e lo c k e d n u m b e r s ( L o c k N o .1 , L o c k N o .2 ) : S T D 1 D 2 D 3 S T # D m D m + 1 D m + 2 D l ... D n (P e rs o n a l c o d e )
N o te : D 1 ~ D 1 2 = 0 ~ 9 Dm Dm +1 Dm +2 = 0~9 D l ... D n = 0 ~ 9 , * , #
. N o te : R M : R e d ia l m e m o r y S A M : S a v e d ia lin g m e m o r y D 1 D 2 ... D n : 0 ~ 9 D n + 1 ... D m : 0 ~ 9 , * , # D m + 1 ... D I: 0 ~ 9 , * , # D I+ 1 ... D K : 0 ~ 9 , * , #
Rev. 1.20
14
October 1, 2002
HT9315 Series
Timing Diagrams Pulse mode
* Tone mode
H ig h HKS Im pedance
K E Y IN
D1 T
DB
D2 R T
DB
T
DB
XM UTE
T PO
T
PDP
ID P
-T
M
T
ID P
-T
M
T
PDP
T
ID P
T
M
T
B
T
M
T
M
DTM . T X2 20m s 20m s
ID P
-T
M
H ig h Im p e d a n c e HKS
K E Y IN
D1 T
D2 T
R T
DB
DB
DB
XM UTE
PO T DTM . T X2 20m s 20m s
T M IN IT P M
T
IT P M
T
IT P M
T
IT P M
Rev. 1.20
15
October 1, 2002
HT9315 Series
Dialing with pause key
* Pulse mode
H ig h Im p e d a n c e HKS
K E Y IN
D1 T
DB
D2 P
D3 T
P
+T
PDP
XM UTE
T PO
PDP
T
ID P
T
M
T
M
DTM .
X2 20m s
* Tone mode
H ig h Im p e d a n c e HKS
K E Y IN
D1 T
DB
D2
P
D3 T
P
XM UTE
PO T DTM . T X2 20m s
IT P M T M IN
T
IT P M
T
IT P M
Rev. 1.20
16
October 1, 2002
HT9315 Series
Flash key operation
H ig h Im p e d a n c e HKS
K E Y IN .
T XM UTE
DB
PO T
.
T
.P
DTM .
X2 20m s
Pulse(R)Tone operation
H ig h Im p e d a n c e HKS
K E Y IN T XM UTE
DB
D1
D2
* /T
D3 T
ID P
T
P
T
T PO
PDP
T
ID P
+T
PDP
T
IT P M
DTM . T X2 20m s
T M IN
Rev. 1.20
17
October 1, 2002
HT9315 Series
One-key redial operation
H ig h Im p e d a n c e HKS
K E Y IN
D1 T
DB
D2 T
IT P M
R T
DB
T
IT P M
T
DB
T
IT P M
XM UTE
PO T
BRK
DTM .
(1 .2 s e c s )
TRP (1 s e c )
T
IT P M
X2 20m s
CLOCK & DOUT operation
H ig h Im p e d a n c e HKS
K E Y IN
D1
XM UTE T PO
DB
T
PDP
T
B
T
M
CLO CK .
CLO CK
= 2 .4 k H z
DOUT X2 20m s
D a ta
N o te : D 1 = D 3 = 3 D2=2
Rev. 1.20
18
October 1, 2002
HT9315 Series
T ip O ff-h o o k A92 100kW 2 .2 k W 3 .3 k W 1N4148 V
DD
22M W 100kW
O n -h o o k R in g 1 A b r id g e
1N4148
A42
5 .1 V 0 .1 m .
270kW 100m. 1m.
220kW 1 .5 k W 100kW 150W
47kW
12 1 3 SA
R1
10
11
2 EM1 EM2 .
R2 R3 R4
15 16 17 18 Rk Rk
PO
VDD
HKS
4 6 8 7 9 A # R /P ST EM3 0 * /T
5
DTM .
13
H T 9 3 1 5 A /A L
C5 5
C4 4 C3 3 C2 2 C1 1
XM UTE
8
SPEECH NETW ORK VSS 9 MODE 14 X1 VD 10pps
D
X2 6 7 3 .5 8 M H z re s o n a to r 20pps 10p. Tone 39p. 39p.
1m.
Application Circuits
Application circuit 1
Rev. 1.20
* R k fo r d ia lin g s ig (R e fe r to th e fu n * U n s p e c ifie d tr a n * A 1 m . c a p a c ito r
n a l o p tio c tio n a l d s is to r s a b e tw e e n
n e s c r ip tio n ) re o f 8 0 5 0 ty p e X M U T E a n d V S S ( G N D ) is r e c o m m e n d e d
19
October 1, 2002
HT9315 Series
O ff-h o o k T ip A92 10m. 50V 220kW
220kW
22M W 100kW 1N4148 330kW 1m. 16V 2 .2 k W 1N4148 47kW 10kW H a n d -fre e 0 .1 m . V H o ld 5 .1 V
DD
O n -h o o k
R in g 100kW 3 .3 k W A42 1N4148 x 4 22kW 22kW 33kW
1 A b r id g e
100kW
1N4148 1N4148 220kW 270kW 0 .1 m . 100kW 47kW 150W 1 .5 k W 1m.
0 .0 2 m .
11 1 3 SA 6 . 9 A # R /P Rk Rk 6 ST 21 EM3 20 EM2 19
R1
15 PO
22 1 HDO
13 HDI VDD
14
2 EM1 4 5
18 H.I
HKS
DTM .
16
R2 R3 R4
C5
7 * /T 0
8
H T 9 3 1 5 B /B L
C4 5 C3 4 C2 3 C1 2
VSS MODE 17 10 X1 V DD 10pps 20pps 10p. Tone 39p. 7 X2 8 3 .5 8 M H z re s o n a to r 39p.
H.O
XM UTE
12 9 1m. SPEECH NETW ORK
Application circuit 2
Rev. 1.20
* R k fo r d ia lin g s ig (R e fe r to th e fu n * U n s p e c ifie d tr a n * A 1 m . c a p a c ito r
n a l o p tio c tio n a l d s is to r s a b e tw e e n
n e s c r ip tio n ) re o f 8 0 5 0 ty p e X M U T E a n d V S S ( G N D ) is r e c o m m e n d e d
20
0 .1 m .
100m.
October 1, 2002
HT9315 Series
T ip O ff-h o o k A92 O n -h o o k R in g 2 .2 k W 3 .3 k W 1N4148 V
DD
22M W 100kW
1 A b r id g e
100kW
1N4148
A42
5 .1 V 47kW 0 .1 m .
270kW 100m. 1m.
220kW 1 .5 k W 100kW 150W
14 1 3 SA
R1
12
13
2 EM1 EM2 . 18 4 6 5
17
PO
VDD
HKS
DTM .
15
R2 R3 R4
C5
7 9 A # R /P Rk Rk ST 20 EM3 0 * /T
8
19
H T 9 3 1 5 C /C L
C4 4
5
XM UTE
8 DOUT 10 1N4148
SPEECH NETW ORK
C3 3
C2 2
C1 1
VSS 9
MODE 16
X1 VDD 10pps 20pps Tone 10p. 6
X2 7
CLO CK 11 3 .5 8 M H z re s o n a to r 39p. 39p.
1m.
Application circuit 3
H T16XX L C D D R IV E R (s e e H T 1 6 X X d a ta )
Rev. 1.20
* R k fo r d ia lin g s ig (R e fe r to th e fu n * U n s p e c ifie d tr a n * A 1 m . c a p a c ito r
n a l o p tio c tio n a l d s is to r s a b e tw e e n
n e s c r ip tio n ) re o f 8 0 5 0 ty p e X M U T E a n d V S S ( G N D ) is r e c o m m e n d e d
21
October 1, 2002
HT9315 Series
O ff-h o o k T ip A92 10m. 50V
220kW
22M W 100kW 220kW 330kW 1m. 16V 33kW 1N4148
O n -h o o k
R in g 100kW 3 .3 k W A42 10kW H a n d -fre e 0 .1 m . V H o ld 5 .1 V
DD
1 A b r id g e
100kW
2 .2 k W 1N4148 1N4148 220kW
1N4148
1m.
47kW
1N4148 x 4 22kW 22kW
270kW 0 .1 m . 100kW 0 .1 m . 100m. 47kW 1 .5 k W
150W
0 .0 2 m .
11 1 3 SA 6 . 9 A # R /P Rk Rk 6 ST 23 EM3 22 EM2 21
R1
17
24 1
15
16
1N4148
47kW
2 EM1 4 5
20 H.I
PO
HDO
HDI
VDD
HKS
DTM .
18
R2 R3 R4
C5
7 * /T 0
8
H T 9 3 1 5 D /D L
C4 5 C3 4 C2 3 C1 2
VSS MODE 19 10 X1 V DD 10pps 20pps 10p. Tone 7 X2 8 CLO CK 13 3 .5 8 M H z re s o n a to r 39p. 39p.
H.O
XM UTE
14 9 DOUT 12 1m.
SPEECH NETW ORK
Application circuit 4
H T16XX L C D D R IV E R (s e e H T 1 6 X X d a ta )
Rev. 1.20
* R k fo r d ia lin g s ig (R e fe r to th e fu n * U n s p e c ifie d tr a n * A 1 m . c a p a c ito r
n a l o p tio c tio n a l d s is to r s a b e tw e e n
n e s c r ip tio n ) re o f 8 0 5 0 ty p e X M U T E a n d V S S ( G N D ) is r e c o m m e n d e d
22
October 1, 2002
HT9315 Series
Package Information
18-pin DIP (300mil) outline dimensions
A 18 B 1 10 9
H C D E G .
a
I
Symbol A B C D E F G H I a
Dimensions in mil Min. 895 240 125 125 16 50 3/4 295 335 0 Nom. 3/4 3/4 3/4 3/4 3/4 3/4 100 3/4 3/4 3/4 Max. 915 260 135 145 20 70 3/4 315 375 15
Rev. 1.20
23
October 1, 2002
HT9315 Series
20-pin DIP (300mil) outline dimensions
A 20 B 1 11 10
H C D E . G
a
I
Symbol A B C D E F G H I a
Dimensions in mil Min. 1020 240 125 125 16 50 3/4 295 335 0 Nom. 3/4 3/4 3/4 3/4 3/4 3/4 100 3/4 3/4 3/4 Max. 1045 260 135 145 20 70 3/4 315 375 15
Rev. 1.20
24
October 1, 2002
HT9315 Series
22-pin SKDIP (300mil) outline dimensions
A 22 B 1 12 11
H C D E . G
a
I
Symbol A B C D E F G H I a
Dimensions in mil Min. 1085 253 125 125 16 50 3/4 295 330 0 Nom. 3/4 3/4 3/4 3/4 3/4 3/4 100 3/4 3/4 3/4 Max. 1105 263 135 145 20 70 3/4 315 375 15
Rev. 1.20
25
October 1, 2002
HT9315 Series
24-pin SKDIP (300mil) outline dimensions
A 24 B 1 13 12
H C D E . G
a
I
Symbol A B C D E F G H I a
Dimensions in mil Min. 1235 255 125 125 16 50 3/4 295 345 0 Nom. 3/4 3/4 3/4 3/4 3/4 3/4 100 3/4 3/4 3/4 Max. 1265 265 135 145 20 70 3/4 315 360 15
Rev. 1.20
26
October 1, 2002
HT9315 Series
Holtek Semiconductor Inc. (Headquarters) No.3, Creation Rd. II, Science-based Industrial Park, Hsinchu, Taiwan Tel: 886-3-563-1999 Fax: 886-3-563-1189 http://www.holtek.com.tw Holtek Semiconductor Inc. (Sales Office) 11F, No.576, Sec.7 Chung Hsiao E. Rd., Taipei, Taiwan Tel: 886-2-2782-9635 Fax: 886-2-2782-9636 Fax: 886-2-2782-7128 (International sales hotline) Holtek Semiconductor (Shanghai) Inc. 7th Floor, Building 2, No.889, Yi Shan Rd., Shanghai, China Tel: 021-6485-5560 Fax: 021-6485-0313 http://www.holtek.com.cn Holtek Semiconductor (Hong Kong) Ltd. Block A, 3/F, Tin On Industrial Building, 777-779 Cheung Sha Wan Rd., Kowloon, Hong Kong Tel: 852-2-745-8288 Fax: 852-2-742-8657 Holmate Semiconductor, Inc. 46712 Fremont Blvd., Fremont, CA 94538 Tel: 510-252-9880 Fax: 510-252-9885 http://www.holmate.com Copyright O 2002 by HOLTEK SEMICONDUCTOR INC. The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable without further modification, nor recommends the use of its products for application that may present a risk to human life due to malfunction or otherwise. Holteks products are not authorized for use as critical components in life support devices or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at http://www.holtek.com.tw.
Rev. 1.20
27
October 1, 2002

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