SN54ALS564B, SN74ALS564B OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS SDAS164B – APRIL 1982 – REVISED JANUARY 1995 OE 1D 2D 3D 4D 5D 6D 7D 8D GND description These octal D-type edge-triggered flip-flops feature inverting 3-state outputs designed specifically for bus driving. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. 1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 VCC 1Q 2Q 3Q 4Q 5Q 6Q 7Q 8Q CLK 2D 1D SN54ALS564B . . . FK PACKAGE (TOP VIEW) The eight flip-flops enter data on the low-to-high transition of the clock (CLK) input. 3D 4D 5D 6D 7D The output-enable (OE) input does not affect internal operations of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state. 4 2 1 20 19 18 5 17 6 16 7 15 8 14 9 10 11 12 13 2Q 3Q 4Q 5Q 6Q 8D GND CLK 8Q 7Q The SN54ALS564B is characterized for operation over the full military temperature range of – 55°C to 125°C. The SN74ALS564B is characterized for operation from 0°C to 70°C. 3 1Q • • • SN54ALS564B . . . J OR W PACKAGE SN74ALS564B . . . DW OR N PACKAGE (TOP VIEW) 3-State Buffer-Type Inverting Outputs Drive Bus Lines Directly Bus-Structured Pinout Buffered Control Inputs Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), Standard Plastic (N) and Ceramic (J) 300-mil DIPs, and Ceramic Flat (W) Packages OE VCC • FUNCTION TABLE (each flip-flop) INPUTS OE CLK D OUTPUT Q L ↑ H L L ↑ L H L L X Q0 H X X Z Copyright 1995, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 SN54ALS564B, SN74ALS564B OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS SDAS164B – APRIL 1982 – REVISED JANUARY 1995 logic symbol† OE CLK 1D 2D 3D 4D 5D 6D 7D 8D 1 11 2 logic diagram (positive logic) EN OE C1 19 1D 3 18 4 17 5 16 6 15 7 14 8 13 9 12 CLK 1 11 1Q C1 2Q 3Q 1D 2 19 1Q 1D 4Q 5Q 6Q 7Q To Seven Other Channels 8Q † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. absolute maximum ratings over operating free-air temperature range (unless otherwise noted)‡ Supply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Voltage applied to a disabled 3-state output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V Operating free-air temperature range, TA: SN54ALS564B . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 125°C SN74ALS564B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C ‡ Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. recommended operating conditions SN54ALS564B SN74ALS564B MIN NOM MAX MIN NOM MAX 4.5 5 5.5 4.5 5 5.5 UNIT VCC VIH Supply voltage VIL IOH Low-level input voltage 0.7 0.8 High-level output current –1 – 2.6 mA IOL fclock Low-level output current 12 24 mA 30 MHz tw tsu Pulse duration, CLK high or low 25 14 ns Setup time, data before CLK↑ 15 15 ns th TA Hold time, data after CLK↑ 2 High-level input voltage 2 Clock frequency 0 2 22 4 Operating free-air temperature – 55 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 0 V 0 125 0 V V ns 70 °C SN54ALS564B, SN74ALS564B OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS SDAS164B – APRIL 1982 – REVISED JANUARY 1995 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK VCC = 4.5 V, VCC = 4.5 V to 5.5 V, II = – 18 mA IOH = – 0.4 mA 5V VCC = 4 4.5 IOH = – 1 mA IOH = – 2.6 mA VOL VCC = 4 4.5 5V IOL = 12 mA IOL = 24 mA IOZH IOZL VCC = 5.5 V, VCC = 5.5 V, VO = 2.7 V VO = 0.4 V II IIH VCC = 5.5 V, VCC = 5.5 V, VI = 7 V VI = 2.7 V IIL IO‡ VCC = 5.5 V, VCC = 5.5 V, VI = 0.4 V VO = 2.25 V VOH ICC SN54ALS564B TYP† MAX TEST CONDITIONS VCC = 5.5 V MIN SN74ALS564B TYP† MAX MIN – 1.2 VCC – 2 2.4 – 1.2 UNIT V VCC – 2 V 3.3 2.4 0.25 – 20 3.2 0.4 0.25 0.4 0.35 0.5 V µA 20 20 – 20 – 20 µA 0.1 0.1 mA 20 20 µA – 0.2 – 0.2 mA – 112 mA – 112 – 30 Outputs high 10 18 10 18 Outputs low 15 24 15 24 mA Outputs disabled 16 30 16 30 † All typical values are at VCC = 5 V, TA = 25°C. ‡ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS. switching characteristics (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 4.5 V to 5.5 V, CL = 50 pF, R1 = 500 Ω, R2 = 500 Ω, TA = MIN to MAX§ SN54ALS564B MIN fmax tPLH tPHL tPZH tPZL tPHZ MAX SN74ALS564B MIN 22 CLK An Q Any OE An Q Any • DALLAS, TEXAS 75265 MAX 30 MHz 4 24 3 14 4 20 4 14 4 24 3 18 3 23 4 18 1 10 2 15 2 14 OE Any Q tPLZ 3 29 § For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. POST OFFICE BOX 655303 UNIT ns ns ns 3 SN54ALS564B, SN74ALS564B OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS SDAS164B – APRIL 1982 – REVISED JANUARY 1995 PARAMETER MEASUREMENT INFORMATION SERIES 54ALS/74ALS AND 54AS/74AS DEVICES 7V RL = R1 = R2 VCC S1 RL R1 Test Point From Output Under Test CL (see Note A) From Output Under Test RL Test Point From Output Under Test CL (see Note A) CL (see Note A) LOAD CIRCUIT FOR BI-STATE TOTEM-POLE OUTPUTS LOAD CIRCUIT FOR OPEN-COLLECTOR OUTPUTS 3.5 V Timing Input Test Point LOAD CIRCUIT FOR 3-STATE OUTPUTS 3.5 V High-Level Pulse 1.3 V R2 1.3 V 1.3 V 0.3 V 0.3 V Data Input tw th tsu 3.5 V 1.3 V 3.5 V Low-Level Pulse 1.3 V 0.3 V 1.3 V 0.3 V VOLTAGE WAVEFORMS SETUP AND HOLD TIMES VOLTAGE WAVEFORMS PULSE DURATIONS 3.5 V Output Control (low-level enabling) 1.3 V 1.3 V 0.3 V tPZL Waveform 1 S1 Closed (see Note B) tPLZ [3.5 V 1.3 V tPHZ tPZH Waveform 2 S1 Open (see Note B) 1.3 V VOL 0.3 V VOH 1.3 V 0.3 V [0 V 3.5 V 1.3 V Input 1.3 V 0.3 V tPHL tPLH VOH In-Phase Output 1.3 V 1.3 V VOL tPLH tPHL VOH Out-of-Phase Output (see Note C) 1.3 V 1.3 V VOL VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS NOTES: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. When measuring propagation delay items of 3-state outputs, switch S1 is open. D. All input pulses have the following characteristics: PRR ≤ 1 MHz, tr = tf = 2 ns, duty cycle = 50%. E. The outputs are measured one at a time with one transition per measurement. Figure 1. Load Circuits and Voltage Waveforms 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. 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