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74ACT11821

Texas Instruments
Part Number 74ACT11821
Manufacturer Texas Instruments
Description 10-BIT BUS-INTERFACE FLIP-FLOPS
Published Aug 20, 2019
Detailed Description • Inputs Are TTL-Voltage Compatible • Provides Extra Data Width Necessary for Wider Address/Data Paths or Buses With Par...
Datasheet PDF File 74ACT11821 PDF File

74ACT11821
74ACT11821

Overview
• Inputs Are TTL-Voltage Compatible • Provides Extra Data Width Necessary for Wider Address/Data Paths or Buses With Parity • Flow-Through Architecture Optimizes PCB Layout • Center-Pin VCC and GND Configurations Minimize High-Speed Switching Noise • EPIC™ (Enhanced-Performance Implanted CMOS) 1-µm Process • 500-mA Typical Latch-Up Immunity at 125°C • Package Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Ceramic 300-mil DIPs description 54ACT11821, 74ACT11821 10-BIT BUS-INTERFACE FLIP-FLOPS WITH 3-STATE OUTPUTS SCAS156A – NOVEMBER 1990 – REVISED APRIL 1993 54ACT11821 .
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JT PACKAGE 74ACT11821 .
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DW PACKAGE (TOP VIEW) 1Q 2Q 3Q 4Q 5Q GND GND GND GND 6Q 7Q 8Q 9Q 10Q 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 OE 27 1D 26 2D 25 3D 24 4D 23 5D 22 VCC 21 VCC 20 6D 19 7D 18 8D 17 9D 16 10D 15 CLK These 10-bit flip-flops feature 3-state outputs designed specifically for driving highly-capacitive or relatively low-impedance loads.
They are particularly suitable for implementing wider buffer registers, I/O ports, bidirectional bus drivers with parity, and working registers.
On the positive transition of the clock the Q outputs will follow the D inputs.
A buffered output enable (OE) input can be used to place the ten outputs in either a normal logic state (high or low level) 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 the bus lines in a bus-organized system without need for interface or pull-up components.
5Q GND GND GND GND 6Q 7Q 54ACT11821 .
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FK PACKAGE (TOP VIEW) 3D 4D 5D VCC VCC 6D 7D 4 3 2 1 28 27 26 2D 5 25 8D 1D 6 24 9D OE 7 23 10 1Q 8 22 CLK 2Q 9 21 10Q 3Q 10 20 9Q 4Q 11 19 8Q 12 13 14 15 16 17 18 The output enable (OE)does not affect the internal operation of the flip-flops.
Old data can be retained or new data can be entered while the outputs are in the hi...


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