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INTEGRATED CIRCUITS
74F193 Up/down binary counter with separate up/down clocks
Product specification IC15 Data Handbook 1995 Jul 17
Philips Semiconductors
Philips Semiconductors
Product specification
Up/down binary counter with separate up/down clocks
74F193
FEATURES
* Synchronous reversible 4-bit counting * Asynchronous parallel load capability * Asynchronous reset (clear) * Cascadable without external logic
DESCRIPTION
The 74F193 is a 4-bit synchronous up/down counter in the binary mode. Separate up/down clocks, CPU and CPD respectively, simplify operation. The outputs change state synchronously with the Low-to-High transition of either clock input. If the CPU clock is pulsed while CPD is held High, the device will count up. If CPD clock is pulsed while CPU is held High, the device will count down. The device can be cleared at any time by the asynchronous reset pin. It may also be loaded in parallel by activating the asynchronous parallel load pin. Inside the device are four master-slave JK flip-flops with the necessary steering logic to provide the asynchronous reset, asynchronous preset, load, and synchronous count up and count down functions. Each flip-flop contains JK feedback from slave to master, such that a Low-to-High transition on the CPD input will decrease the count by one, while a similar transition on the CPU input will advance the count by one. One clock should be held High while counting with the other, because the circuit will either count by twos or not at all, depending on the state of the first JK flip-flop, which cannot toggle as long as either clock input is Low. Applications requiring reversible operation must make the reversing decision while the activating clock is High to avoid erroneous counts. The Terminal Count Up (TCU) and Terminal Count Down (TCD) outputs are normally High. When the circuit has reached the maximum count state of 15, the next High-to-Low transition of CPU will cause TCU to go Low. TCU will stay Low until CPU goes High again, duplicating the count up clock, although delayed by two gate delays. Likewise, the TCD output will go Low when the circuit is in the zero state and the CPD goes Low. The TC outputs can be used as the clock input signals to the next higher order circuit in a multistage counter, since they duplicate the clock waveforms.
Multistage counters will not be fully synchronous since there is a two-gate delay time difference added for each stage that is added. The counter may be preset by the asynchronous parallel load capability of the circuit. Information present on the parallel Data inputs (D0 - D3) is loaded into the counter and appears on the outputs regardless of the conditions of the clock inputs when the Parallel Load (PL) input is Low. A High level on the Master Reset (MR) input will disable the parallel load gates, override both clock inputs, and set all Q outputs Low. If one of the clock inputs is Low during and after a reset or load operation, the next Low-to-High transition of the clock will be interpreted as a legitimate signal and will be counted. TYPICAL SUPPLY CURRENT (TOTAL) 32mA
TYPE 74F193
TYPICAL fMAX 125MHz
ORDERING INFORMATION
DESCRIPTION 16-pin plastic DIP 16-pin plastic SO COMMERCIAL RANGE VCC = 5V 10%, Tamb = 0C to +70C N74F193N N74F193D PKG DWG # SOT38-4 SOT109-1
PIN CONFIGURATION
D1 Q1 Q0 CPD CPU Q2 Q3 GND
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
VCC D0 MR TCD TCU PL D2 D3
SF00745
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS D0 - D3 CPU CPD PL MR Q0 - Q3 TCU Data inputs Count up clock input (active rising edge) Count down clock input (active rising edge) Asynchronous parallel load control input (active Low) Asynchronous master reset input Flip-flop outputs Terminal count up (carry) output (active Low) DESCRIPTION 74F(U.L.) HIGH/LOW 1.0/1.0 1.0/3.0 1.0/3.0 1.0/1.0 1.0/1.0 50/33 50/33 LOAD VALUE HIGH/LOW 20A/0.6mA 20A/1.8mA 20A/1.8mA 20A/0.6mA 20A/0.6mA 1.0mA/20mA 1.0mA/20mA 1.0mA/20mA
TCD Terminal count down (borrow) output (active Low) 50/33 NOTE: One (1.0) FAST Unit Load (U.L.) is defined as: 20A in the High state and 0.6mA in the Low state.
1995 Jul 17
2
853-0353 15459
Philips Semiconductors
Product specification
Up/down binary counter with separate up/down clocks
74F193
LOGIC SYMBOL
15 1 10 9
LOGIC SYMBOL (IEEE/IEC)
11 5 D0 D1 D2 D3 TCU TCD Q0 Q1 Q2 Q3 12 14 13 15 1 10 3D [1] [2] [4] [8] 3 2 6 7 C3 2+ G1 4 1- G2 R 2CT=0 13 CTR DIV 16 1CT=15 12
11 5 4 14
PL CPU CPD MR
VCC = Pin 16 GND = Pin 8
3
2
6
7
9
SF00746
SF00747
STATE DIAGRAM
0 1 2 3 4
15
5
14
6
13
7
12
11 COUNT UP COUNT DOWN
10
9
8
TCU = Q0 . Q1 . Q2 . Q3 . CPU TCD = Q0 . Q1 . Q2 . Q3 . CPD Logic Equations for Terminal Count
SF00748
1995 Jul 17
3
Philips Semiconductors
Product specification
Up/down binary counter with separate up/down clocks
74F193
LOGIC DIAGRAM
D0 15 11 PL 12 TCU D1 1 D2 10 D3 9
13 5 CPU CPD 4
TCD
J RD Q
CP
K SD Q
J RD Q
CP SD Q
J RD Q
CP
K SD Q
J RD Q
CP
K SD Q
14 MR
VCC = Pin 16 GND = Pin 8
3 Q0
2 Q1
6 Q1
7 Q1
SF00749
FUNCTION TABLE
INPUTS MR H H L L L L L H L X L = = = = PL X X L L L L H CPU X X X X L H CPD L H L H X X H D0 X X L L H H X X D1 X X L L H H X X D2 X X L L H H X X D3 X X L L H H X X Q0 L L L L H H Q1 L L L L H H OUTPUTS Q2 L L L L H H Q3 L L L L H H TCU H H H H L H H1 TCD L H L H H H H H2 OPERATING MODE Reset (clear)
Parallel load
Count up
Count up Count down
H H High voltage level Low voltage level Don't care Low-to-High clock transition
Count down H NOTES: TCU=CPU at terminal count up (HHHH) TCD=CPD at terminal count down (LLLL)
1995 Jul 17
4
Philips Semiconductors
Product specification
Up/down binary counter with separate up/down clocks
74F193
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limits set forth in this table may impair the useful life of the device. Unless otherwise noted these limits are over the operating free-air temperature range.) SYMBOL VCC VIN IIN VOUT IOUT Tamb Tstg Supply voltage Input voltage Input current Voltage applied to output in High output state Current applied to output in Low output state Operating free-air temperature range Storage temperature PARAMETER RATING -0.5 to +7.0 -0.5 to +7.0 -30 to +5.0 -0.5 to +VCC 40 0 to +70 -65 to +150 UNIT V V mA V mA
C C
RECOMMENDED OPERATING CONDITIONS
SYMBOL VCC VIH VIL IIK IOH IOL Tamb Supply voltage High-level input voltage Low-level input voltage Input clamp current High-level output current Low-level output current Operating free-air temperature range 0 PARAMETER LIMITS MIN 4.5 2.0 0.8 -18 -1 20 +70 NOM 5.0 MAX 5.5 UNIT V V V mA mA mA
C
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.) LIMITS SYMBOL PARAMETER TEST CONDITIONSNO TAG MIN VO OH High-level High level output voltage VCC = MIN, VIL = MAX, IOH = MAX, VIH = MIN VCC = MIN, VIL = MAX, IOL = MAX, VIH = MIN VCC = MIN, II = IIK VCC = MAX, VI = 7.0V VCC = MAX, VI = 2.7V CPU, CPD Others currentNO TAG VCC = MAX, VI = 0 5V MAX 0.5V VCC = MAX -60 "10%VCC "5%VCC "10%VCC "5%VCC 2.5 2.7 3.4 0.35 0.35 -0.73 0.50 0.50 -1.2 100 20 -1.8 -0.6 -150 TYP
NO TAG
UNIT MAX V V V V V A A mA mA mA
VO OL VIK II IIH IIL IOS
Low-level Low level output voltage Input clamp voltage Input current at maximum input voltage High-level input current Low level input Low-level in ut current Short-circuit output
ICC Supply current (total)4 VCC = MAX 32 50 mA NOTES: 1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type. 2. All typical values are at VCC = 5V, Tamb = 25C. 3. Not more than one output should be shorted at a time. For testing IOS, the use of high-speed test apparatus and/or sample-and-hold techniques are preferable in order to minimize internal heating and more accurately reflect operational values. Otherwise, prolonged shorting of a High output may raise the chip temperature well above normal and thereby cause invalid readings in other parameter tests. In any sequence of parameter tests, IOS tests should be performed last. 4. Measure ICC with parallel load and Master reset inputs grounded, all other inputs at 4.5V and all outputs open.
1995 Jul 17
5
Philips Semiconductors
Product specification
Up/down binary counter with separate up/down clocks
74F193
AC ELECTRICAL CHARACTERISTICS
LIMITS SYMBOL PARAMETER TEST CONDITIONS Tamb = +25C VCC = +5.0V CL = 50pF, RL = 500 MIN fMAX tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPHL tPLH tPHL tPLH tPHL tPLH tPHL Maximum clock frequency Propagation delay CPU or CPD to TCU or TCD Propagation delay CPU or CPD to Qn Propagation delay Dn to Qn Propagation delay PL to Qn Propagation delay MR to Qn Propagation delay MR to TCU Propagation delay MR to TCD Propagation delay PL to TCU or TCD Propagation delay Dn to TCU or TCD Waveform 1 Waveform 2 Waveform 1 Waveform 4 Waveform 3 Waveform 5 Waveform 5 Waveform 5 Waveform 3 Waveform 4 100 2.5 3.0 2.5 5.0 2.0 6.0 4.5 5.5 5.0 6.0 5.0 6.0 6.0 5.5 4.5 TYP 125 5.5 5.0 5.5 8.5 4.0 9.5 6.5 8.5 7.5 8.5 7.5 9.5 9.0 9.0 8.5 8.5 8.0 8.5 12.0 7.0 13.5 10.0 12.0 11.0 12.0 11.0 13.5 12.0 13.0 12.5 MAX Tamb = 0C to +70C VCC = +5.0V 10% CL = 50pF, RL = 500 MIN 90 2.5 3.0 2.5 5.0 1.5 6.0 4.0 5.0 5.0 5.5 5.0 6.0 6.0 5.0 4.5 9.0 9.0 9.0 13.0 8.0 15.0 11.0 13.0 12.0 13.0 12.0 15.0 13.0 14.0 13.5 MAX MHz ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns UNIT
AC SETUP REQUIREMENTS
LIMITS SYMBOL PARAMETER TEST CONDITIONS Tamb = +25C VCC = +5.0V CL = 50pF, RL = 500 MIN ts(H) ts(L) th(H) th(L) tw(L) tw(H) tw(L) tw(L) tw(H) trec trec Setup time, High or Low Dn to PL Hold time, High or Low Dn to PL PL Pulse width Low CPU or CPD Pulse width High or Low CPU or CPD Pulse width Low (Change of direction) MR Pulse width High Recovery time, PL to CPU or CPD Recovery time MR to CPU or CPD Waveform 6 Waveform 6 Waveform 3 Waveform 1 Waveform 1 Waveform 5 Waveform 3 Waveform 5 4.5 4.5 2.0 2.0 6.0 3.5 5.0 10.0 6.0 6.0 4.0 TYP MAX Tamb= 0C to +70C VCC = +5.0V 10% CL = 50pF, RL = 500 MIN 5.0 5.0 2.0 2.0 6.0 3.5 5.0 10.0 6.0 6.0 4.0 MAX ns ns ns ns ns ns ns ns ns ns ns UNIT
1995 Jul 17
6
Philips Semiconductors
Product specification
Up/down binary counter with separate up/down clocks
74F193
AC WAVEFORMS
For all waveforms Vm = 1.5V
1/fMAX tW(L) CPU, CPD VM tW(H) tPHL VM tPLH TCU, TCD Qn VM VM tPHL VM tPLH VM CPU, CPD VM VM
SF00753 SF00750
Waveform 2. Propagation Delay, Clock to Terminal Count
Waveform 1. Propagation Delay, Clock Input to Output, Clock Pulse Width and Maximum Clock Frequency
Dn tW(L) tPLH PL VM tPLH CPU, CPD VM VM tPHL VM trec Qn, TCU, TCD tPHL VM Qn, TCU, TCD VM VM VM tPLH VM tPHL VM VM
SF00754
TCU, TCD, Qn VM VM
Waveform 4. Propagation Delay, Data to Flip-Flop Outputs, Terminal Count Up and Down Outputs
SF00751
Waveform 3. Parallel Pulse Width, Parallel Load to Output Delays, and Parallel Load to Clock Recovery Time
Dn tS(H)
VM tS(L)
VM
th(H)
th(L)
MR
VM tW(H)
VM PL trec The shaded areas indicate when the input is permitted to change for predictable output performance. VM
CPU, CPD
SF00755
VM
Waveform 6. Data Setup and Hold Times
tPLH TCU tPHL VM VM
Qn, TCD
SF00752
Waveform 5. Master Reset Pulse Width, Master Reset to Output Delay and Master Reset to Clock Recovery Time
1995 Jul 17
7
Philips Semiconductors
Product specification
Up/down binary counter with separate up/down clocks
74F193
Timing Diagram (Typical clear, load, and count sequence)
CLEAR1 LOAD MR PL
D0 D1 DATA D2 D3
COUNT UP2 COUNT DOWN2
CPU CPD Q0 Q1
OUTPUTS Q2 Q3 TCU TCD 0 13 14 15 0 1 2 1 0 15 14 13
SEQUENCE
COUNT UP CLEAR PRESET NOTES: 1. Clear overrides load, data, and count inputs. 2. When counting up, count-down input must be High; when counting down, count-up input must be High.
COUNT DOWN
SF00756
Binary Counter TEST CIRCUIT AND WAVEFORMS
VCC NEGATIVE PULSE VIN PULSE GENERATOR RT D.U.T. VOUT 90% VM 10% tTHL (tf ) CL RL tw VM 10% tTLH (tr ) 0V 90% AMP (V)
tTLH (tr ) 90% POSITIVE PULSE VM 10% tw
tTHL (tf ) AMP (V) 90% VM 10% 0V
Test Circuit for Totem-Pole Outputs DEFINITIONS: RL = Load resistor; see AC ELECTRICAL CHARACTERISTICS for value. CL = Load capacitance includes jig and probe capacitance; see AC ELECTRICAL CHARACTERISTICS for value. RT = Termination resistance should be equal to ZOUT of pulse generators.
Input Pulse Definition INPUT PULSE REQUIREMENTS family amplitude VM 74F 3.0V 1.5V rep. rate 1MHz tw 500ns tTLH 2.5ns tTHL 2.5ns
SF00006
1995 Jul 17
8
Philips Semiconductors
Product specification
Up/down binary counter with separate up/down clocks
74F193
DIP16: plastic dual in-line package; 16 leads (300 mil)
SOT38-4
1995 Juk 17
9
Philips Semiconductors
Product specification
Up/down binary counter with separate up/down clocks
74F193
SO16: plastic small outline package; 16 leads; body width 3.9 mm
SOT109-1
1995 Juk 17
10
Philips Semiconductors
Product specification
Up/down binary counter with separate up/down clocks
74F193
NOTES
1995 Juk 17
11
Philips Semiconductors
Product specification
Up/down binary counter with separate up/down clocks
74F193
Data sheet status
Data sheet status Objective specification Preliminary specification Product specification Product status Development Qualification Definition [1] This data sheet contains the design target or goal specifications for product development. Specification may change in any manner without notice. This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips Semiconductors reserves the right to make chages at any time without notice in order to improve design and supply the best possible product. This data sheet contains final specifications. Philips Semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product.
Production
[1] Please consult the most recently issued datasheet before initiating or completing a design.
Definitions
Short-form specification -- The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook. Limiting values definition -- Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information -- Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification.
Disclaimers
Life support -- These products are not designed for use in life support appliances, devices or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Right to make changes -- Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified. Philips Semiconductors 811 East Arques Avenue P.O. Box 3409 Sunnyvale, California 94088-3409 Telephone 800-234-7381 (c) Copyright Philips Electronics North America Corporation 1998 All rights reserved. Printed in U.S.A. print code Document order number: Date of release: 10-98 9397-750-05094
Philips Semiconductors
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