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UT54ACTS264

Part Number	UT54ACTS264
Manufacturer	Aeroflex Circuit Technology
Description	Look-Ahead Carry Generators
Published	Sep 23, 2016
Detailed Description	Standard Products UT54ACS264/UT54ACTS264 Look-Ahead Carry Generators for Counters Datasheet November 2010 www.aeroflex.c...
Datasheet	UT54ACTS264 PDF File

Overview

Standard Products UT54ACS264/UT54ACTS264 Look-Ahead Carry Generators for Counters Datasheet November 2010 www.
aeroflex.
com/logic FEATURES Performs look-ahead carry across n-bit counters Accommodates active-high or active-low carry Improves cascaded counters system performance 1.
2μ CMOS - Latchup immune High speed Low power consumption Single 5 volt supply Available QML Q or V processes Flexible package - 16-pin DIP - 16-lead flatpack UT54ACS264- SMD 5962-96576 UT54ACTS264 - SMD 5962-96577 DESCRIPTION The UT54ACS264 and the UT54ACTS264 are look-ahead generators designed specifically to perform a carry-anticipate across any number of n-bit counters, thus increasing system clock frequency.
A carry enable CE, and carry outputs RCOA and RCOB are provided for n-bit cascading.
Use the counter with either active-high-carry or active-low-carry counters.
For active-high-carry counters, CE is active high, the A set of inputs and output RCOA are used.
The B set of inputs are connected to a low logic level.
For active-low-carry counters, CE is active low, the B set of inputs and output RCOB are used.
The A set of inputs are connected to a high logic level.
The devices are characterized over full military temperature range of -55°C to +125°C.
PINOUTS A1 B1 A0 B0 A3 B3 RCOB VSS 16-Pin DIP Top View A1 1 16 VDD B1 2 15 B2 A0 3 14 A2 B0 4 13 CE A3 5 12 C0 B3 6 11 C1 RCOB 7 10 RCOA VSS 8 9 C2 16-Lead Flatpack Top View 1 16 2 15 3 14 4 13 5 12 6 11 7 10 89 VDD B2 A2 CE C0 C1 RCOA C2 1 LOGIC SYMBOL ACTIVE-HIGH INPUTS CE (13) B0 (4) A0 (3) B1 (2) A1 (1) B2 (15) A2 (14) B3 (6) A3 (5) Z1 1,3 ≥1 2,3 Z2 1,3,5 ≥1 2,3,5 G3 4,5 Z4 1,3,5,7 ≥1 2,3,5,7 G5 4,5,7 6,7 Z6 1,3,5,7, ≥1 G7 4,5,7,9 6,7,9 8,9 Z8 1 ≥1 G9 2 4 6 8 (12) C0 (11) C1 (9) C2 (10) RCOA (7) RCOB Notes: 1.
Logic symbols in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
FUNCTION TABLE FOR C0 OUTPUT INPUTS OUTPUT A0 B0 CE C0 HHX H HXH H LXX L XLL L ...

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