SN54AC534, SN74AC534 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCAS554A – NOVEMBER 1995 – REVISED MAY 1996 D D D SN54AC534 . . . J OR W PACKAGE SN74AC534 . . . DB, DW, N, OR PW PACKAGE (TOP VIEW) 3-State Inverting Outputs Drive Bus Lines Directly Full Parallel Access for Loading EPIC (Enhanced-Performance Implanted CMOS) 1-µm Process Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB), Thin Shrink Small-Outline (PW), Ceramic Chip Carriers (FK) and Flatpacks (W), and Standard Plastic (N) and Ceramic (J) DIPs OE 1Q 1D 2D 2Q 3Q 3D 4D 4Q GND description These octal edge-triggered D-type flip-flops feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. The devices 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 8Q 8D 7D 7Q 6Q 6D 5D 5Q CLK 1D 1Q OE VCC SN54AC534 . . . FK PACKAGE (TOP VIEW) 2D 2Q 3Q 3D 4D On the positive transition of the clock (CLK) input, the Q outputs are set to the complements of the logic levels set up at the data (D) inputs. 8Q D 4 3 2 1 20 19 18 5 17 6 16 7 15 8D 7D 7Q 6Q 6D 4Q GND CLK 5Q 5D 14 8 A buffered output-enable (OE) input can be used 9 10 11 12 13 to place the eight outputs in either a normal logic state (high or low logic levels) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without need for interface or pullup components. OE 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. The SN54AC534 is characterized for operation over the full military temperature range of –55°C to 125°C. The SN74AC534 is characterized for operation from –40°C to 85°C. FUNCTION TABLE (each flip-flop) INPUTS OUTPUT Q OE CLK D L ↑ H L L ↑ L H L H or L X Q0 H X X Z Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. EPIC is a trademark of Texas Instruments Incorporated. Copyright 1996, Texas Instruments Incorporated UNLESS OTHERWISE NOTED this document contains PRODUCTION DATA information 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 SN54AC534, SN74AC534 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCAS554A – NOVEMBER 1995 – REVISED MAY 1996 logic symbol† 1 OE CLK 1D 2D 3D 4D 5D 6D 7D 8D 11 3 4 logic diagram (positive logic) OE EN LE C1 1D 1 2 5 7 6 8 9 13 12 14 15 17 16 18 19 1 11 C1 1Q 2Q 1D 3 2 1Q 1D 3Q 4Q 5Q To Seven Other Channels 6Q 7Q 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 range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to VCC + 0.5 V Output voltage range, VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to VCC + 0.5 V Input clamp current, IIK (VI < 0 or VI > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Output clamp current, IOK (VO < 0 or VO > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±200 mA Maximum power dissipation at TA = 55°C (in still air) (see Note 2): DB package . . . . . . . . . . . . . . . . . . . 0.6 W DW package . . . . . . . . . . . . . . . . . . 1.6 W N package . . . . . . . . . . . . . . . . . . . . 1.3 W PW package . . . . . . . . . . . . . . . . . . 0.7 W Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –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. NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. The maximum package power dissipation is calculated using a junction temperature of 150°C and a board trace length of 750 mils, except for the N package, which has a trace length of zero. 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SN54AC534, SN74AC534 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCAS554A – NOVEMBER 1995 – REVISED MAY 1996 recommended operating conditions (see Note 3) SN54AC534 VCC VIH Supply voltage VCC = 3 V VCC = 4.5 V High-level input voltage VCC = 5.5 V VCC = 3 V VIL Low-level input voltage VI VO ∆t/∆v 2 6 MAX 2 6 3.15 3.15 0 Low-level output current MIN 2.1 0 High-level output current SN74AC534 2.1 VCC = 4.5 V VCC = 5.5 V Output voltage IOL MAX 3.85 Input voltage IOH MIN 3.85 0.9 0.9 1.35 1.35 1.65 1.65 VCC VCC 0 0 VCC VCC –12 –12 –24 –24 VCC = 5.5 V VCC = 3 V –24 –24 12 12 VCC = 4.5 V VCC = 5.5 V 24 24 24 24 TA Operating free-air temperature NOTE 3: Unused inputs must be held high or low to prevent them from floating. V V VCC = 3 V VCC = 4.5 V Input transition rise or fall rate UNIT V V V mA mA 0 8 0 8 ns/V –55 125 –40 85 °C electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS IOH = –50 µA VOH IOH = –12 mA IOH = –24 24 mA IOL = 50 µA VOL IOL = 12 mA IOL = 24 mA IOZ II VO = VCC or GND VI = VCC or GND ICC Ci VI = VCC or GND, VI = VCC or GND IO = 0 VCC MIN TA = 25°C TYP MAX SN54AC534 MIN MAX SN74AC534 MIN 3V 2.9 2.9 2.9 4.5 V 4.4 4.4 4.4 5.5 V 5.4 5.4 5.4 3V 2.56 2.4 2.46 4.5 V 3.86 3.7 3.76 5.5 V 4.86 4.7 MAX UNIT V 4.76 3V 0.1 0.1 0.1 4.5 V 0.1 0.1 0.1 5.5 V 0.1 0.1 0.1 3V 0.36 0.5 0.44 4.5 V 0.36 0.5 0.44 5.5 V 0.36 0.5 0.44 5.5 V ±0.5 ±5 ±2.5 µA 5.5 V ±0.1 ±1 ±1 µA 5.5 V 4 80 40 µA 5V 4.5 V pF PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 SN54AC534, SN74AC534 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCAS554A – NOVEMBER 1995 – REVISED MAY 1996 timing requirements over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1) TA = 25°C MIN MAX SN54AC534 MIN SN74AC534 MAX MIN MAX UNIT tw tsu Pulse duration, CLK high or low 5 8 6.5 ns Setup time, data before CLK↑ 5 8 6.5 ns th Hold time, data after CLK↑ 1 3 1.5 ns timing requirements over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) TA = 25°C MIN MAX SN54AC534 MIN SN74AC534 MAX MIN MAX UNIT tw tsu Pulse duration, CLK high or low 3.5 5.5 4 ns Setup time, data before CLK↑ 3.5 5.5 4 ns th Hold time, data after CLK↑ 1 3 1.5 ns switching characteristics over recommended operating VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1) PARAMETER fmax tPLH tPHL tPZH tPZL tPHZ tPLZ FROM (INPUT) TO (OUTPUT) TA = 25°C MIN MAX 70 CLK Q OE Q OE Q fmax tPLH tPHL tPZH tPZL tPHZ tPLZ FROM (INPUT) TO (OUTPUT) Q OE Q OE Q SN54AC534 MIN SN74AC534 MAX MIN MAX 70 14 2 17.5 2.5 16 3 13 2 16.5 2.5 15 3 12.5 2 15.5 2.5 14 3 12.5 2 15.5 2.5 14 2 13.5 1 16.5 1.5 15 2 12 1 15 1.5 13.5 free-air TA = 25°C MIN MAX temperature SN54AC534 MIN SN74AC534 MAX 75 MIN range, UNIT MHz 3 150 CLK temperature 60 switching characteristics over recommended operating VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) PARAMETER free-air MAX 140 ns ns ns range, UNIT MHz 2.5 10.5 1.5 13.5 2 12 2.5 9.5 1.5 12.5 2 11 2.5 10 1.5 13 2 11.5 2.5 10 1.5 13 2 11.5 1.5 11.5 1 14 1 12.5 1.5 10 1 12.5 1 11 ns ns ns operating characteristics, VCC = 5 V, TA = 25°C PARAMETER Cpd Power dissipation capacitance PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TEST CONDITIONS TYP UNIT CL = 50 pF, f = 1 MHz 40 pF SN54AC534, SN74AC534 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCAS554A – NOVEMBER 1995 – REVISED MAY 1996 PARAMETER MEASUREMENT INFORMATION 2 × VCC S1 500 Ω From Output Under Test Open 500 Ω CL = 50 pF (see Note A) TEST S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open 2 × VCC Open LOAD CIRCUIT VCC 50% VCC Timing Input 0V tw tsu VCC 50% VCC Input th 50% VCC VCC 50% VCC Data Input 50% VCC 0V 0V VOLTAGE WAVEFORMS VOLTAGE WAVEFORMS Output Control (low-level enabling) VCC 50% VCC Input 50% VCC 0V tPHL tPLH 50% VCC In-Phase Output Out-of-Phase Output VOH 50% VCC VOL 50% VCC VOH 50% VCC VOL Output Waveform 2 S1 at Open (see Note B) 50% VCC 0V tPZL [ VCC tPLZ Output Waveform 1 S1 at 2 × VCC (see Note B) tPLH tPHL VCC 50% VCC 50% VCC VOL + 0.3 V VOL tPHZ tPZH 50% VCC VOH – 0.3 V VOH [0V VOLTAGE WAVEFORMS VOLTAGE WAVEFORMS 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. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns. D. The outputs are measured one at a time with one input transition per measurement. Figure 1. Load Circuit and Voltage Waveforms POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 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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