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54ACT169 数据表(PDF) 1 Page - Texas Instruments |
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54ACT169 数据表(HTML) 1 Page - Texas Instruments |
1 / 11 page OBSOLETE 54AC169, 54ACT169 www.ti.com SNOS092B – JULY 1998 – REVISED APRIL 2013 54AC169 • 54ACT169 4-Stage Synchronous Bidirectional Counter Check for Samples: 54AC169, 54ACT169 1 FEATURES DESCRIPTION The 'AC/'ACT169 is fully synchronous 4-stage 2 • ICC Reduced by 50% up/down counter. The 'AC/'ACT169 is a modulo-16 • Synchronous Counting and Loading binary counter. It features a preset capability for • Built-In Lookahead Carry Capability programmable operation, carry lookahead for easy cascading and a U/D input to control the direction of • Presettable for Programmable Operation counting. All state changes, whether in counting or • Outputs Source/Sink 24 mA parallel loading, are initiated by the LOW-to-HIGH • 'ACT has TTL-Compatible Inputs transition of the Clock. ® • Standard Microcircuit Drawing (SMD) – 5962-91603 Logic Symbols Pin Names Description CEP Count Enable Parallel Input CET Count Enable Trickle Input CP Clock Pulse Input P0–P3 Parallel Data Inputs PE Parallel Enable Input U/D Up-Down Count Control Input Q0–Q3 Flip-Flop Outputs TC Terminal Count Output Figure 1. IEEE/IEC 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 is a registered trademark of ~Fairchild Semiconductor. PRODUCTION DATA information is current as of publication date. Copyright © 1998–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
类似零件编号 - 54ACT169 |
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类似说明 - 54ACT169 |
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