OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS
54AC11534, 74AC11534 OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS
WITH 3-STATE OUTPUTS
SCAS037A – JULY 1987 – REVISED APRIL 19...
Description
54AC11534, 74AC11534 OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS
WITH 3-STATE OUTPUTS
SCAS037A – JULY 1987 – REVISED APRIL 1993
Eight D-Type Flip-Flops in a Single Package 3-State Bus Driving Inverting Outputs Full Parallel Access for Loading Inputs Are TTL-Voltage Compatible Flow-Through Architecture to Optimize
PCB Layout
Center-Pin VCC and GND Configurations to
Minimize High-Speed Switching Noise
t EPIC (Enhanced-Performance Implanted CMOS) 1-mm Process
500-mA Typical Latch-Up Immunity
at 125°C
Package Options Include Plastic Small-
Outline Packages, Ceramic Chip Carriers,
and Standard Plastic and Ceramic 300-mil
DIPs
description
54AC11534 . . . JT PACKAGE 74AC11534 . . . DW OR NT PACKAGE
(TOP VIEW)
1Q 2Q 3Q 4Q GND GND GND GND 5Q 6Q 7Q 8Q
1 2 3 4 5 6 7 8 9 10 11 12
24 OC 23 1D 22 2D 21 3D 20 4D 19 VCC 18 VCC 17 5D
16 6D 15 7D 14 8D 13 CLK
54AC11534 . . . FK PACKAGE (TOP VIEW)
3D 4D VCC NC VCC 5D 6D
These eight flip-flops feature 3-state outputs designed for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
The eight flip-flops of the ′AC11534 are edgetriggered, D-type flip-flops. On the positive transition of the clock, the Q outputs are set to the complement of the logic levels at the D inputs. The ′AC11534 is functionally equivalent to the ′AC11374 except for having inverted outputs.
An output-control input (OC) is used to place the eight outputs in either a normal logic state (high or low logic levels) or a h...
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