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Part: SN54ACT534FK
Category:
Logic
-> Buffers/Inverters
-> 3-State
Description: Octal Edge-triggered D-type Flip-flops With 3-state Outputs
Company: Texas Instruments, Inc.
Datasheet: Download SN54ACT534FK datasheet File size : 214 kB
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Datasheet text preview:
SN54ACT534, SN74ACT534 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SCAS556B NOVEMBER 1995 REVISED JANUARY 2000
D D D D D
Inputs Are TTL-Voltage Compatible 3-State Inverting Outputs Drive Bus Lines Directly Full Parallel Access for Loading EPIC TM (Enhanced-Performance Implanted CMOS) 1-µm Process Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB), and Thin Shrink Small-Outline (PW) Packages, Ceramic Chip Carriers (FK) and Flatpacks (W), and Standard Plastic (N) and Ceramic (J) DIPs
SN54ACT534 . . . J OR W PACKAGE SN74ACT534 . . . DB, DW, N, OR PW PACKAGE (TOP VIEW)
OE 1Q 1D 2D 2Q 3Q 3D 4D 4Q GND
1 2 3 4 5 6 7 8 9 10
20 19 18 17 16 15 14 13 12 11
VCC 8Q 8D 7D 7Q 6Q 6D 5D 5Q CLK
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. 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. A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or the 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.
SN54ACT534 . . . FK PACKAGE (TOP VIEW)
1D 1Q OE VCC
2D 2Q 3Q 3D 4D
4 5 6 7 8
3 2 1 20 19 18 17 16 15 14 9 10 11 12 13
8Q 8D 7D 7Q 6Q 6D
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 SN54ACT534 is characterized for operation over the full military temperature range of 55°C to 125°C. The SN74ACT534 is characterized for operation from 40°C to 85°C.
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.
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
Copyright © 2000, Texas Instruments Incorporated
· DALLAS, TEXAS 75265
4Q GND CLK 5Q 5D
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SN54ACT534, SN74ACT534 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SCAS556B NOVEMBER 1995 REVISED JANUARY 2000
FUNCTION TABLE (each flip-flop) INPUTS OE L L L H CLK H or L X D H L X X OUTPUT Q L H Q0 Z
logic symbol
1 11
logic diagram (positive logic)
1 EN C1 2 5 6 9 12 15 16 19 OE CLK 11
OE CLK
1D 2D 3D 4D 5D 6D 7D 8D
3 4 7 8 13 14 17 18
1D
1
1Q 2Q 3Q 4Q 5Q 6Q 7Q 8Q 1D
C1 3 1D
2 1Q
To Seven Other Channels
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 VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Output clamp current, IOK (VO VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±200 mA Package thermal impedance, JA (see Note 2): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69°C/W PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83°C/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 package thermal impedance is calculated in accordance with JESD 51.
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POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
SN54ACT534, SN74ACT534 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
SCAS556B NOVEMBER 1995 REVISED JANUARY 2000
recommended operating conditions (see Note 3)
SN54ACT534 MIN VCC VIH VIL VI VO IOH IOL t/v Supply voltage High-level input voltage Low-level input voltage Input voltage Output voltage High-level output current Low-level output current Input transition rise or fall rate 0 0 0 4.5 2 0.8 VCC VCC 24 24 8 0 0 0 MAX 5.5 SN74ACT534 MIN 4.5 2 0.8 VCC VCC 24 24 8 MAX 5.5 UNIT V V V V V mA mA ns/V
TA Operating free-air temperature 55 125 40 85 °C NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS CONDITIONS IOH = 50 µA 50 µA VOH IOH = 24 mA 24 mA IOH = 50 mA IOH = 75 mA IOL = 50 µA 50 µA VOL IOL = 24 mA 24 mA IOL = 50 mA IOL = 75 mA IOZ II ICC ICC VO = VCC or GND VI = VCC or GND VI = VCC or GND, IO = 0 One input at 3.4 V, Other inputs at GND or VCC VCC 4.5 V 5.5 V 4.5 V 5.5 V 5.5 V 5.5 V 4.5 V 5.5 V 4.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 0.6 ±0.25 ±0.1 4 ±5 ±1 80 1.6 0.1 0.1 0.36 0.36 0.1 0.1 0.5 0.5 1.65 1.65 ±2.5 ±1 40 1.5 µA µA µA mA pF MIN 4.4 5.4 3.8 4.86 TA = 25°C TYP MAX 4.49 5.49 SN54ACT534 MIN 4.4 5.4 3.7 4.7 3.85 3.85 0.1 0.1 0.44 0.44 V MAX SN74ACT534 MIN 4.4 5.4 3.76 4.76 V MAX UNIT
Ci VI = VCC or GND 5V 4.5 Not more than one output should be tested at a time, and the duration of the test should not exceed 2 ms. This is the increase in supply current for each input that is at one of the specified TTL voltage levels rather than 0 V or VCC.
timing requirements over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 1)
TA = 25°C MIN MAX tw tsu th Pulse duration, CLK high or low Setup time, data before CLK Hold time, data after CLK 3.5 3.5 1 SN54ACT534 MIN 5 5 3 MAX SN74ACT534 MIN 3.5 4 1.5 MAX UNIT ns ns ns
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
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