54ACT11882, 74ACT11882
32-BIT LOOK-AHEAD CARRY GENERATORS
features
- Capable of Anticipating the Carry Across a Group of Eight
4-Bit Binary Adders
- Cascadable to Perform Look-Ahead Across n-Bit Adders
- Typical Carry Time, Cn to Any Cn+i, is
Less Than 6 ns
- Inputs are TTL-Voltage Compatible
- New Flow-Through Architecture to Optimize PCB Layout
- Center-Pin VCC and GND Configurations to Minimize
High-Speed Switching Noise
- EPICTM (Enhanced-Performance Implanted CMOS) 1-
m 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
The ACT11882 is a high-speed look-ahead carry generator capable of
anticipating the carry across a group of eight 4-bit adders
permitting the designer to implement look-ahead for a 32-bit ALU with
a single package or, by cascading 'T11882's full look-ahead is
possible across n-bit adders.
The SN54ACT11882 is characterized for operation over the full
military temperature range of -55°C to 125°C. The
SN74ACT11882 is characterized for operation from - 40°C to
85°C.