PDF UT54ACS264 Data sheet ( Hoja de datos )

Número de pieza	UT54ACS264
Descripción	Look-Ahead Carry Generators
Fabricantes	Aeroflex Circuit Technology
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No Preview Available ! 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 gen- erators designed specifically to perform a carry-anticipate across any number of n-bit counters, thus increasing system clock fre- quency. 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-car- ry 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 1 page DC ELECTRICAL CHARACTERISTICS 7 (VDD = 5.0V ±10%; VSS = 0V 6, -55°C < TC < +125°C); Unless otherwise noted, Tc is per the temperature range ordered. SYMBOL VIL VIH IIN VOL VOH IOS IOL IOH Ptotal PARAMETER Low-level input voltage 1 ACTS ACS High-level input voltage 1 ACTS ACS Input leakage current ACTS/ACS Low-level output voltage 3 ACTS ACS High-level output voltage 3 ACTS ACS Short-circuit output current 2 ,4 ACTS/ACS Output current10 (Sink) Output current10 (Source) Power dissipation 2, 8, 9 IDDQ ΔIDDQ Quiescent Supply Current Quiescent Supply Current Delta ACTS CIN COUT Input capacitance 5 Output capacitance 5 CONDITION VIN = VDD or VSS IOL = 8.0mA IOL = 100μA IOH = -8.0mA IOH = -100μA VO = VDD and VSS VIN = VDD or VSS VOL = 0.4V VIN = VDD or VSS VOH = VDD - 0.4V CL = 50pF VDD = 5.5V For input under test VIN = VDD - 2.1V For all other inputs VIN = VDD or VSS VDD = 5.5V ƒ = 1MHz @ 0V ƒ = 1MHz @ 0V MIN .5VDD .7VDD -1 MAX UNIT 0.8 .3VDD V V 1 μA 0.40 V 0.25 .7VDD VDD - 0.25 -200 8 200 V mA mA -8 mA 2.1 mW/ MHz 10 μA 1.6 mA 15 pF 15 pF 5 5 Page Aeroflex Colorado Springs - Datasheet Definition Advanced Datasheet - Product In Development Preliminary Datasheet - Shipping Prototype Datasheet - Shipping QML & Reduced Hi-Rel COLORADO Toll Free: 800-645-8862 Fax: 719-594-8468 SE AND MID-ATLANTIC Tel: 321-951-4164 Fax: 321-951-4254 INTERNATIONAL Tel: 805-778-9229 Fax: 805-778-1980 WEST COAST Tel: 949-362-2260 Fax: 949-362-2266 NORTHEAST Tel: 603-888-3975 Fax: 603-888-4585 CENTRAL Tel: 719-594-8017 Fax: 719-594-8468 www.aeroflex.com [email protected] Aeroflex UTMC Microelectronic Systems Inc. (Aeroflex) reserves the right to make changes to any products and services herein at any time without notice. Consult Aeroflex or an authorized sales representative to verify that the information in this data sheet is current before using this product. Aeroflex does not assume any responsibility or liability arising out of the application or use of any product or service described herein, except as expressly agreed to in writing by Aeroflex; nor does the purchase, lease, or use of a product or service from Aeroflex convey a license under any patent rights, copyrights, trademark rights, or any other of the intellectual rights of Aeroflex or of third parties. Our passion for performance is defined by three attributes represented by these three icons: solution-minded, performance-driven and customer-focused 11 11 Page

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