INTEGRATED CIRCUITS 74F1779 8-bit bidirectional binary counter (-State) Product specification IC15 Data Handbook 1989 Apr 06 Philips Semiconductors Product specification 8-bit bidirectional binary counter (3-State) FEATURES 74F1779 PIN CONFIGURATION • Multiplexed 3-State I/O ports for bus oriented applications • Built-in look-ahead carry capability • Center power pins to reduce effects of package inductance • Count frequency 145MHz typical • Supply current 90mA typical • See 74F269 for 24-pin separate I/O port version • See 74F579 for 20-pin version • See 74F779 for 16-pin version with abbreviated function table I/O1 1 16 I/O0 I/O2 2 15 CP I/O3 3 14 CET GND 4 13 VCC I/O4 5 12 TC I/O5 6 11 S0 I/O6 7 10 S1 I/O7 9 8 OE SF01259 DESCRIPTION The 74F1779 is a fully synchronous 8-stage up/down counter with multiplexed 3-State I/O ports for bus-oriented applications. All control functions (hold, count up, count down, synchronous load) are controlled by two mode pins (S0, S1). The device also features carry look-ahead for easy cascading. All state changes are initiated by the rising edge of the clock. When CET is High, the data outputs are held in their current state and TC is held High. the TC output is not recommended for use as a clock or asynchronous reset due to the possibility of decoding spikes. TYPE TYPICAL fMAX TYPICAL SUPPLY CURRENT (TOTAL) 74F1779 130MHz 100mA ORDERING INFORMATION The 74F1779 differs from 74F779 in that it has an additional hold mode as described in the Function Table. DESCRIPTION COMMERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C PACKAGE DRAWING NUMBER 16-pin Plastic DIP N74F1779N SOT38-4 16-pin Plastic SOL N74F1779D SOT162-1 INPUT AND OUTPUT LOADING AND FAN-OUT TABLE 74F(U.L.) HIGH/LOW LOAD VALUE HIGH/LOW Data inputs 3.5/1.0 70µA/0.6mA PINS I/On DESCRIPTION Data outputs 150/40 3.0mA/24mA S0, S1 Select inputs 1.0/1.0 20µA/0.6mA OE Output Enable input (active Low) 1.0/1.0 20µA/0.6mA CET Count Enable Trickle input (active Low) 1.0/1.0 20µA/0.6mA CP Clock input (active rising edge) 1.0/1.0 20µA/0.6mA TC Terminal Count output (active Low) 50/33 1.0mA/20mA NOTE: One (1.0) FAST unit load is defined as: 20µA in the High state and 0.6mA in the Low state. 1989 Apr 06 2 853–1367 96245 Philips Semiconductors Product specification 8-bit bidirectional binary counter (3-State) LOGIC SYMBOL 74F1779 FUNCTION TABLE INPUTS 11 S0 14 CET 15 CP 9 OE OPERATING MODE 10 S1 TC 16 1 2 3 5 6 7 8 CET OE CP X X X H X I/O0 to I/O7 in High impedance X X X L X Flip-flop outputs appear on I/O lines L L X H ↑ Parallel load all flip-flops (not LL) H X ↑ Hold (TC held High) H H X X ↑ Hold H L L X ↑ Count up L H L X ↑ Count down SF01260 H = High voltage level L = Low voltage level X = Don’t care ↑ = Low-to-High clock transition (not LL) = S0 and S1 should never be Low voltage level at the same time in the hold mode only. IEC/IEEE SYMBOL CTR DIV 256 11 10 14 15 9 0 1 LOAD 0 M — DOWN 3 UP HOLD EN4 2 +/C5 1– EN6 [1] 6 [2] [4] [8] [16] 16 1 2 3 5 6 [32] [64] [128] 4, 5, 8 CT=256 4, 5, 8 CT=0 7 8 12 SF01261 1989 Apr 06 S0 12 I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 VCC=Pin 13 GND=Pin 4 S1 3 Philips Semiconductors Product specification 8-bit bidirectional binary counter (3-State) 74F1779 LOGIC DIAGRAM S0 11 LOAD CONTROL S1 10 CP 15 UP DOWN OE 9 16 DETAIL A 1 DETAIL A I/O2 2 DETAIL A 3 DETAIL A 5 DETAIL A I/O0 I/O1 I/O3 I/O4 I/O5 I/O6 I/O7 CET TC 6 DETAIL A 7 DETAIL A DETAIL A 8 14 12 CP TOGGLE DATA LOAD D CP Q Q Q Q DETAIL A VCC=Pin 13 GND=Pin 4 SF01262 1989 Apr 06 4 Philips Semiconductors Product specification 8-bit bidirectional binary counter (3-State) 74F1779 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 PARAMETER RATING UNIT VCC Supply voltage –0.5 to +7.0 V VIN Input voltage –0.5 to +7.0 V IIN Input current VOUT Voltage applied to output in High output state IOUT O Current applied to output in Low output state Tamb Operating free-air temperature range Tstg Storage temperature –30 to +5 mA –0.5 to VCC V 40 mA TC I/On 48 mA 0 to +70 °C –65 to +150 °C RECOMMENDED OPERATING CONDITIONS LIMITS SYMBOL PARAMETER MIN NOM MAX 5.0 5.5 VCC Supply voltage 4.5 VIH High-level input voltage 2.0 VIL Low-level input voltage IIK Input clamp current IOH O High level output current High-level IOL O Low level output current Low-level Tamb Operating free-air temperature range 1989 Apr 06 UNIT V V 0.8 V –18 mA TC –1 mA I/On –3 mA TC 20 mA I/On 24 mA 70 °C 0 5 Philips Semiconductors Product specification 8-bit bidirectional binary counter (3-State) 74F1779 DC ELECTRICAL CHARACTERISTICS (Over recommended operating free-air temperature range unless otherwise noted.) SYMBOL TC VOH O High level output voltage High-level I/On VCC = MIN, VIL = MAX VIH = MIN IOH 1mA O = –1mA VCC = MIN, VIL = MAX VIH = MIN IOH 3mA O = –3mA IOL O = MAX VOL O Low level output voltage Low-level VCC = MIN, VIL = MAX VIH = MIN VIK Input clamp voltage VCC = MIN, II = IIK II Input current at maximum input voltage IIH High-level input current IIL Low-level input current IIH+IOZH Off-state output current High-level voltage applied IIL+IOZL Off-state output current Low-level voltage applied IOS Short-circuit output current3 ICC Supply current (total) LIMITS TEST CONDITIONS1 PARAMETER TYP2 MIN ±10%VCC 2.5 ±5%VCC 2.7 ±10%VCC 2.4 ±5%VCC 2.7 MAX UNIT V 3.4 V V 3.3 ±10%VCC V 0.30 0.50 V 0.35 0.50 V –0.73 –1.2 V ±5%VCC I/On VCC = 5.5V, VI = 5.5V 1 mA others VCC = 5.5V, VI = 7.0V 100 µA except I/On VCC = MAX, VI = 2.7V 20 µA VCC = MAX, VI = 0.5V –0.6 mA VCC = MAX, VO = 2.7V 70 µA VCC = MAX, VO = 0.5V –600 µA –150 mA 100 145 mA 100 145 mA 110 155 mA I/On VCC = MAX –60 ICCH ICCL VCC = MAX ICCZ 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 = 25°C. 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 tests. In any sequence of parameter tests, IOS tests should be performed last. AC ELECTRICAL CHARACTERISTICS LIMITS SYMBOL PARAMETER Tamb = +25°C VCC = +5.0V CL = 50pF, RL = 500Ω TEST CONDITION MIN TYP MAX Tamb = 0°C to +70°C VCC = +5.0V ± 10% CL = 50pF, RL = 500Ω MIN UNIT MAX fMAX Maximum clock frequency Waveform 1 115 130 tPLH tPHL Propagation delay CP to I/On Waveform 1 4.0 5.0 6.5 7.0 10.0 10.5 4.0 5.0 10.5 11.0 ns tPLH tPHL Propagation delay CP to TC Waveform 1 4.0 4.5 6.5 6.5 9.0 9.0 3.5 4.0 9.5 9.5 ns tPLH tPHL Propagation delay CET to TC Waveform 2 2.0 2.5 4.0 4.5 6.5 7.0 2.0 2.5 7.5 7.5 ns tPZH tPZL Output Enable time to High or Low level Waveform 4 Waveform 5 2.0 4.5 4.0 6.5 6.5 9.0 2.0 4.0 7.5 9.5 ns tPHZ tPLZ Output Enable time from High or Low level Waveform 4 Waveform 5 1.0 1.0 3.0 4.0 6.0 7.0 1.0 1.0 6.5 7.5 ns 1989 Apr 06 6 100 MHz Philips Semiconductors Product specification 8-bit bidirectional binary counter (3-State) 74F1779 AC SETUP REQUIREMENTS LIMITS SYMBOL Tamb = +25°C VCC = +5.0V CL = 50pF, RL = 500Ω TEST CONDITION PARAMETER MIN ts(H) ts(L) Setup time, High or Low I/On to CP th(H) th(L) TYP MAX Tamb = 0°C to +70°C VCC = +5.0V ± 10% CL = 50pF, RL = 500Ω MIN UNIT MAX Waveform 3 4.0 3.5 4.5 3.5 ns Hold time, High or Low I/On to CP Waveform 3 0 0 0 0 ns ts(H) ts(L) Setup time, High or Low CET to CP Waveform 3 4.5 7.0 5.0 8.0 ns th(H) th(L) Hold time, High or Low CET to CP Waveform 3 0 0 0 0 ns ts(H) ts(L) Setup time, High or Low Sn to CP Waveform 3 7.5 8.5 8.0 9.5 ns th(H) th(L) Hold time, High or Low Sn to CP Waveform 3 0 0 0 0 ns tw(H) tw(L) CP Pulse width, High or Low Waveform 1 3.0 4.5 3.0 5.5 ns AC WAVEFORMS For all waveforms, VM = 1.5V. The shaded areas indicate when the input is permitted to change for predictable output performance. 1/fMAX CP Sn, I/On, CET VM CP tPHL VM VM th(H) ts(L) th(L) VM VM VM VM tPHL TC VM tW(L) tPLH I/On ts(H) VM tW(H) VM SF01265 Waveform 3. tPLH Data Setup and Hold Times VM VM SF01263 OE Waveform 1. Propagation Delay, Clock Input to Output, Clock Pulse Width, and Maximum Clock Frequency VM VM tPZH tPHZ I/On VOH -0.3V VM 0V CET VM VM tPHL TC SF01266 Waveform 4. 3-State Output Enable Time to High Level and Output Disable Time from High Level tPLH VM VM SF01264 OE Waveform 2. Propagation Delay, CET Input to Terminal Count Output VM VM tPZL tPLZ 3.5V I/On VM VOL +0.3V SF01267 Waveform 5. 3-State Output Enable Time to Low Level and Output Disable Time from Low Level 1989 Apr 06 7 Philips Semiconductors Product specification 8-bit bidirectional binary counter (3-State) 74F1779 TEST CIRCUIT AND WAVEFORMS VCC 7.0V VIN RL VOUT PULSE GENERATOR tw 90% NEGATIVE PULSE VM CL AMP (V) VM 10% D.U.T. RT 90% 10% tTHL (tf ) tTLH (tr ) tTLH (tr ) tTHL (tf ) 0V RL AMP (V) 90% 90% Test Circuit for 3-State Outputs POSITIVE PULSE VM VM 10% TEST tPLZ tPZL All other SWITCH closed closed open 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. 10% tw SWITCH POSITION 0V Input Pulse Definition INPUT PULSE REQUIREMENTS family amplitude VM 74F 3.0V 1.5V rep. rate tw tTLH tTHL 1MHz 500ns 2.5ns 2.5ns SF00777 1989 Apr 06 8 Philips Semiconductors Product specification 8-bit bidirectional binary counter (3-State) DIP16: plastic dual in-line package; 16 leads (300 mil) 1989 Apr 06 9 74F1779 SOT38-4 Philips Semiconductors Product specification 8-bit bidirectional binary counter (3-State) SO16: plastic small outline package; 16 leads; body width 7.5 mm 1989 Apr 06 10 74F1779 SOT162-1 Philips Semiconductors Product specification 8-bit bidirectional binary counter (3-State) NOTES 1989 Apr 06 11 74F1779 Philips Semiconductors Product specification 8-bit bidirectional binary counter (3-State) 74F1779 DEFINITIONS Data Sheet Identification Product Status Definition Objective Specification Formative or in Design This data sheet contains the design target or goal specifications for product development. Specifications may change in any manner without notice. Preliminary Specification Preproduction Product This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips Semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. Product Specification Full Production 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. Philips Semiconductors and Philips Electronics North America Corporation reserve 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. Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. LIFE SUPPORT APPLICATIONS Philips Semiconductors and Philips Electronics North America Corporation Products are not designed for use in life support appliances, devices, or systems where malfunction of a Philips Semiconductors and Philips Electronics North America Corporation Product can reasonably be expected to result in a personal injury. Philips Semiconductors and Philips Electronics North America Corporation customers using or selling Philips Semiconductors and Philips Electronics North America Corporation Products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors and Philips Electronics North America Corporation for any damages resulting from such improper use or sale. Copyright Philips Electronics North America Corporation 1989 All rights reserved. Printed in U.S.A. Philips Semiconductors 811 East Arques Avenue P.O. Box 3409 Sunnyvale, California 94088–3409 Telephone 800-234-7381 yyyy mmm dd 12