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Details, datasheet, quote on part number:SN74AS534DW
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| Part: | SN74AS534DW |
| Category: | Logic => Flip-Flops => D-Type (3-State) Flip-Flops |
| Description: | ti SN74AS534, Octal D-type Edge-triggered Flip-flops With 3-State Outputs |
| Company: | Texas Instruments, Inc. |
| Datasheet: | Download SN74AS534DW datasheet File size : 117 kB |
| Request For quote: | Find where to buy SN74AS534DW
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Datasheet text preview:
SN54ALS534A, SN74ALS534A, SN74AS534 OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS
SDAS168B APRIL 1982 REVISED JULY 1996
D D D
3-State Bus Driving Inverting Outputs Buffered Control Inputs Package Options Include Plastic Small-Outline (DW), Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs
SN54ALS534A . . . J PACKAGE SN74ALS534A, SN74AS534 . . . DW OR N PACKAGE (TOP VIEW)
description
These octal D-type edge-triggered flip-flops feature 3-state outputs designed specifically for driving highly capacitive or relatively lowimpedance loads. They 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 complement of the logic states set up at the data (D) inputs. The 'ALS534A and SN74AS534 have inverted outputs, but otherwise are functionally equivalent to the 'ALS374A and SN74AS374. A buffered output-enable (OE) input places 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 interface or pullup components.
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
VC C 8Q 8D 7D 7Q 6Q 6D 5D 5Q CLK
SN54ALS534A . . . FK PACKAGE (TOP VIEW)
OE VCC
1D 1Q
2D 2Q 3Q 3D 4D
3 4 5 6 7 8
2 1 20 19 18 17 16 15
8Q 8D 7D 7Q 6Q 6D
14 9 10 11 12 13
OE does not affect the internal operations of the flip-flops. Old data can be retained or new data can be entered while the outputs are off. The SN54ALS534A is characterized for operation over the full military temperature range of 55°C to 125°C. The SN74ALS534A and SN74AS534 are characterized for operation from 0°C to 70°C.
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
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.
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.
Copyright © 1996, Texas Instruments Incorporated
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
4Q GND CLK 5Q 5D
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SN54ALS534A, SN74ALS534A, SN74AS534 OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS
SDAS168B APRIL 1982 REVISED JULY 1996
logic symbol
1 OE CLK 11 EN C1 2 5 6 9 12 15 16 19
logic diagram (positive logic)
OE CLK 1 11 C1 1Q 2Q 3Q 4Q 5Q 6Q 7Q 8Q 3D 7 C1 1D 6 3Q 2D C1 4 1D 1D 3 1D 2
1D 2D 3D 4D 5D 6D 7D 8D
3 4 7 8 13 14 17 18
1D
1Q
5
2Q
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. 4D
C1 8 1D
9
4Q
C1 5D 13 1D
12
5Q
C1 6D 14 1D
15
6Q
C1 17 7D 1D
16
7Q
C1 8D 18 1D
19
8Q
2
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
SN54ALS534A, SN74ALS534A, SN74AS534 OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS
SDAS168B APRIL 1982 REVISED JULY 1996
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: SN54ALS534A . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55°C to 125°C SN74ALS534A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C 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.
recommended operating conditions
SN54ALS534A MIN VCC VIH VIL IOH IOL fclock tw tsu th TA Supply voltage High-level input voltage Low-level input voltage High-level output current Low-level output current Clock frequency Pulse duration, CLK high or low Setup time, data before CLK Hold time, data after CLK Operating free-air temperature 0 16.5 10 0 55 125 4.5 2 0.7 1 12 30 0 14 10 0 0 70 NOM 5 MAX 5.5 SN74ALS534A MIN 4.5 2 0.8 2.6 24 35 NOM 5 MAX 5.5 UNIT V V V mA mA MHz ns ns ns °C
electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER VIK VOH TEST CONDITIONS CONDITIONS VCC = 4.5 V, VCC = 4.5 V to 5.5 V, VCC = 4 5 V 4.5 VCC = 4 5 V 4.5 VCC = 5.5 V, VCC = 5.5 V, VCC = 5.5 V, VCC = 5.5 V, CLK, OE D VCC = 5 5 V 5.5 V, VCC = 5.5 V, VCC = 5.5 V II = 18 mA IOH = 0.4 mA IOH = 1 mA IOH = 2.6 mA IOL = 12 mA IOL = 24 mA VO = 2.7 V VO = 0.4 V VI = 7 V VI = 2.7 V VI = 0 4 V 0.4 VO = 2.25 V Outputs high Outputs low 20 11 19 SN54ALS534A MIN TYP MAX 1.5 VCC 2 2.4 VCC 2 3.3 2.4 0.25 0.4 20 20 0.1 20 0.1 0.2 112 19 28 30 11 19 3.2 0.25 0.35 0.4 0.5 20 20 0.1 20 0.1 0.2 112 19 28 mA V µA µA mA µA mA mA V SN74ALS534A MIN TYP MAX 1.5 UNIT V
VOL IOZH IOZL II IIH IIL IO§ ICC
Outputs disabled 10 31 20 31 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.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
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