Philips 74HCT182
The 74HC/HCT182 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. The 74HC/HCT182 carry look-ahead generators accept up to four pairs of active LOW carry propagate (P0, P1, P2, P3) and carry generate (G0, G1, G2, G3) signals and an active HIGH carry input (Cn).| Part No. | 74HCT182 |
|---|---|
| Datasheet | 74HCT182 Download |
| Manufacturer |  Philips |
| Description | Look-ahead carry generator |
| Buy | Stock & Price |
FEATURES
● Provides carry look-ahead across a group of four ALU’s● Multi-level look-ahead for high-speed arithmetic operation over long word length
● Output capability: standard
● ICC category: MSI
GENERAL DESCRIPTION
7A. The devices provide QUICK REFERENCE DATA GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns 74HC/HCT182 anticipated active HIGH carries (Cn+x, Cn+y, Cn+z) across four groups of binary adders. The “182” also has active LOW carry propagate (P) and carry generate (G) outputs which may be used for further levels of look-ahead. The logic equations provided at the outputs are: Cn+x = G0 + P0Cn Cn+y = G1 + P1G0 + P1P0Cn Cn+z = G2 + P2G1 + P2P1G0 + P2P1P0Cn G = G3 + P3 G2 + P3 P2 G1 + P3 P2 P1 GO P = P3 P2 P1 P0 The “182” can also be used with binary ALU’s in an active LOW or active HIGH input operand mode. The connections to and from the ALU to the carry look-ahead generator are identical in both cases. TYPICAL SYMBOL tPHL/ tPLH PARAMETER propagation delay Pn to P Cn to any output Pn...
