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IDT74LVC16344A 3.3V CMOS ONE-TO-FOUR ADDRESS/CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
3.3V CMOS ONE-TO-FOUR ADDRESS/CLOCK DRIVER WITH 3-STATE OUTPUTS AND 5 VOLT TOLERANT I/O
* Typical tSK(o) (Output Skew) < 250ps * ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) * VCC = 3.3V 0.3V, Normal Range * VCC = 2.7V to 3.6V, Extended Range * CMOS power levels (0.4 W typ. static) * All inputs, outputs, and I/O are 5V tolerant * Supports hot insertion * Available in SSOP, TSSOP, and TVSOP packages
IDT74LVC16344A
FEATURES:
DESCRIPTION:
DRIVE FEATURES: APPLICATIONS:
The LVC16344A is a 1:4 address/clock driver built using advanced dual metal CMOS technology. This high speed, low power device provides the ability to fanout to memory arrays. Eight banks, each with a fanout of 4, and 3-state control provide efficient address distribution. One or more banks may be used for clock distribution. All pins of this address line driver can be driven from either 3.3V or 5V devices. This feature allows the use of this device as a translator in a mixed 3.3V/5V supply system. The LVC16344A has been designed with a 24mA output driver. This driver is capable of driving a moderate to heavy load while maintaining speed performance.
* High Output Drivers: 24mA * Reduced system switching noise
* 5V and 3.3V mixed voltage systems * Data communication and telecommunication systems
FUNCTIONAL BLOCK DIAGRAM
OE1
1
OE3
29
2
B11 A5
36
34
B51
A1
8 6
B14
30
B54
9
B21 A6
42
41
B61
A2
14 13
B24
37
B64
OE2
28
OE4
56
16 15
B31 A7
43
48
B71
A3
20
B34
44
B74
23
B41 A8
49
55
B81
A4
21 27
B44
51
B84
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
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(c) 1999 Integrated Device Technology, Inc.
MARCH 1999
DSC-4576/2
IDT74LVC16344A 3.3V CMOS ONE-TO-FOUR ADDRESS/CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
OE1 B11 B12 GND B13 B14 VCC A1 B21 B22 GND B23 B24 A2 A3 B31 B32 GND B33 B34 A4 VCC B41 B42 GND B43 B44 OE2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 OE4 B81 B82 GND B83 B84 VCC A8 B71 B72 GND B73 B74 A7 A6 B61 B62 GND B63 B64 A5 VCC B51 B52 GND B53 B54 OE3
ABSOLUTE MAXIMUM RATINGS(1)
Symbol Description Max VTERM TSTG IOUT IIK IOK ICC ISS Terminal Voltage with Respect to GND Storage Temperature DC Output Current Continuous Clamp Current, VI < 0 or VO < 0 Continuous Current through each VCC or GND -0.5 to +6.5 -65 to +150 -50 to +50 -50 100
Unit V C mA mA mA
NOTE: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
CAPACITANCE (TA = +25C, F = 1.0MHz)
Symbol CIN COUT CI/O Parameter(1) Input Capacitance Output Capacitance I/O Port Capacitance Conditions VIN = 0V VOUT = 0V VIN = 0V Typ. 4.5 6.5 6.5 Max. 6 8 8 Unit pF pF pF
NOTE: 1. As applicable to the device type.
PIN DESCRIPTION
Pin Names OEx Ax Bxx Data Inputs 3-State Outputs Description 3-State Output Enable Inputs (Active LOW)
FUNCTION TABLE (EACH 4-BIT BUFFER)(1)
Inputs OEx L L H
NOTES: 1. H = HIGH Voltage Level X = Don't Care L = LOW Voltage Level Z = High-Impedance
Outputs Ax L H X Bxx L H Z
SSOP/ TSSOP/ TVSOP TOP VIEW
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IDT74LVC16344A 3.3V CMOS ONE-TO-FOUR ADDRESS/CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: Operating Condition: TA = -40C to +85C
Symbol VIH VIL IIH IIL IOZH IOZL IOFF VIK VH ICCL ICCH ICCZ ICC High Impedance Output Current (3-State Output pins) Input/Output Power Off Leakage Clamp Diode Voltage Input Hysteresis Quiescent Power Supply Current VCC = 0V, VIN or VO 5.5V VCC = 2.3V, IIN = -18mA VCC = 3.3V VCC = 3.6V VIN = GND or VCC -- -- -- -- -- -- -- -0.7 100 -- -- -- 50 -1.2 -- 10 10 500 A V mV A VCC = 3.6V VO = 0 to 5.5V -- -- 10 A Parameter Input HIGH Voltage Level Input LOW Voltage Level Input Leakage Current VCC = 2.3V to 2.7V VCC = 2.7V to 3.6V VCC = 2.3V to 2.7V VCC = 2.7V to 3.6V VCC = 3.6V VI = 0 to 5.5V Test Conditions Min. 1.7 2 -- -- -- Typ.(1) -- -- -- -- -- Max. -- -- 0.7 0.8 5 A V Unit V
Quiescent Power Supply Current Variation
3.6 VIN 5.5V(2) One input at VCC - 0.6V, other inputs at VCC or GND
A
NOTES: 1. Typical values are at VCC = 3.3V, +25C ambient. 2. This applies in the disabled state only.
OUTPUT DRIVE CHARACTERISTICS
Symbol VOH Parameter Output HIGH Voltage VCC = 2.3V VCC = 2.3V VCC = 2.7V VCC = 3V VCC = 3V VOL Output LOW Voltage VCC = 2.3V to 3.6V VCC = 2.3V VCC = 2.7V VCC = 3V IOH = - 24mA IOL = 0.1mA IOL = 6mA IOL = 12mA IOL = 12mA IOL = 24mA Test Conditions(1) VCC = 2.3V to 3.6V IOH = - 0.1mA IOH = - 6mA IOH = - 12mA Min. VCC - 0.2 2 1.7 2.2 2.4 2.2 -- -- -- -- -- Max. -- -- -- -- -- -- 0.2 0.4 0.7 0.4 0.55 V Unit V
NOTE: 1. VIH and VIL must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table for the appropriate VCC range. TA = - 40C to + 85C.
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IDT74LVC16344A 3.3V CMOS ONE-TO-FOUR ADDRESS/CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
OPERATING CHARACTERISTICS, VCC = 3.3V 0.3V, TA = 25C
Symbol CPD CPD Parameter Power Dissipation Capacitance per Buffer/Driver Outputs enabled Power Dissipation Capacitance per Buffer/Driver Outputs disabled Test Conditions CL = 0pF, f = 10Mhz Typical Unit pF
SWITCHING CHARACTERISTICS(1)
VCC = 2.7V Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ tSK(b) tSK(o) Parameter Propagation Delay Ax to Bxx Output Enable Time OEx to Bxx Output Disable Time OEx to Bxx Skew between outputs of same bank and same package (same transition) Skew between outputs of all banks and same package (A1 through A8 tied together)(2)
NOTES: 1. See TEST CIRCUITS AND WAVEFORMS. TA = - 40C to + 85C. 2. Skew between any two outputs of the same package and switching in the same direction.
VCC = 3.3V 0.3V Min. 1.5 1.5 1.5 Max. 4.4 5.8 5.2 350 500 Unit ns ns ns ps ps
Min.
Max.
-- --
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IDT74LVC16344A 3.3V CMOS ONE-TO-FOUR ADDRESS/CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
TEST CIRCUITS AND WAVEFORMS TEST CONDITIONS
Symbol VLOAD VIH VT VLZ VHZ CL VCC(1)= 3.3V0.3V VCC(1)= 2.7V 6 2.7 1.5 300 300 50
VCC 500 Pulse (1, 2) Generator VIN D.U.T. RT 500 CL
LVC Link
VCC(2)= 2.5V0.2V 2 x Vcc Vcc Vcc / 2 150 150 30
Unit V V V mV mV pF
VLOAD Open GND
6 2.7 1.5 300 300 50
SAME PHASE INPUT TRANSITION tPLH OUTPUT tPLH OPPOSITE PHASE INPUT TRANSITION tPHL tPHL
VIH VT 0V VOH VT VOL VIH VT 0V
LVC Link
Propagation Delay
ENABLE CONTROL INPUT tPZL OUTPUT SWITCH NORMALLY CLOSED LOW tPZH OUTPUT SWITCH NORMALLY OPEN HIGH VLOAD/2 VT tPHZ VT 0V tPLZ DISABLE VIH VT 0V VLOAD/2 VOL+VLZ VOL VOH VOH-VHZ 0V
LVC Link
VOUT
Test Circuit for All Outputs
DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. NOTES: 1. Pulse Generator for All Pulses: Rate 10MHz; tF 2.5ns; tR 2.5ns. 2. Pulse Generator for All Pulses: Rate 10MHz; tF 2ns; tR 2ns.
NOTE: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
Enable and Disable Times
SWITCH POSITION
Test Open Drain Disable Low Enable Low Disable High Enable High All Other Tests Switch VLOAD GND Open
VIH VT 0V VOH VT VOL VOH VT VOL tPLH2 tPHL2
LVC Link
DATA INPUT TIMING INPUT ASYNCHRONOUS CONTROL SYNCHRONOUS CONTROL
tSU
tH
tREM
tSU
tH
VIH VT 0V VIH VT 0V VIH VT 0V VIH VT 0V
LVC Link
INPUT
Set-up, Hold, and Release Times
LOW-HIGH-LOW PULSE tW HIGH-LOW-HIGH PULSE VT
LVC Link
tPLH1
tPHL1
OUTPUT 1
VT
tSK (x)
tSK (x)
OUTPUT 2
tSK(x) = tPLH2 - tPLH1 or tPHL2 - tPHL1
Pulse Width
Output Skew - tSK(X)
NOTES: 1. For tSK(o) OUTPUT1 and OUTPUT2 are any two outputs. 2. For tSK(b) OUTPUT1 and OUTPUT2 are in the same bank.
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IDT74LVC16344A 3.3V CMOS ONE-TO-FOUR ADDRESS/CLOCK DRIVER
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
X LVC IDT XX Bus-Hold Temp. Range XX Family XX XXXX Device Type Package
PV PA PF
Shrink Small Outline Package Thin Shrink Small Outline Package Thin Very Small Outline Package
344A One-to-Four Address/Clock Driver 16 Double-Density with Resistors, 24mA
Blank No Bus-hold 74 -40C to +85C
CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054
for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com
for Tech Support: logichelp@idt.com (408) 654-6459
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