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74LVX163MX Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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74LVX163MX Datasheet(HTML) 1 Page - National Semiconductor (TI) |
1 / 8 page TLF12157 December 1996 74LVX163 Low Voltage Synchronous Binary Counter with Synchronous Clear General Description The LVX163 is a synchronous modulo-16 binary counter This device is synchronously presettable for application in programmable dividers and has two types of Count Enable inputs plus a Terminal Count output for versatility in forming multistage counters The CLK input is active on the rising edge Both PE and CLR inputs are active on low logic lev- els Presetting is synchronous to rising edge of CLK and the Clear function of the LVX163 is synchronous to CLK Two enable inputs (ENP and ENT) and Carry Output are provid- ed to enable easy cascading of counters which facilitates easy implementation of n-bit counters without using external gates The inputs tolerate voltages up to 7V allowing the interface of 5V systems to 3V systems Features Y Input voltage level translation from 5V to 3V Y Ideal for low powerlow noise 33V applications Y Available in SOIC JEDEC SOIC EIAJ and TSSOP packages Y Guaranteed simultaneous switching noise and dynamic threshold performance Logic Symbols TLF12157 – 1 IEEEIEC TLF12157 – 2 Connection Diagram Pin Assignment for TSSOP and SOIC TLF12157 – 3 SOIC JEDEC SOIC EIAJ TSSOP Order Number 74LVX163M 74LVX163SJ 74LVX163MTC 74LVX163MX 74LVX163SJX 74LVX163MTCX See NS Package M16A M16D MTC16 Number Pin Description Names CEP Count Enable Parallel Input CET Count Enable Trickle Input CP Clock Pulse Input MR Synchronous Master Reset Input P0–P3 Parallel Data Inputs PE Parallel Enable Inputs Q0–Q3 Flip-Flop Outputs TC Terminal Count Output C1996 National Semiconductor Corporation RRD-B30M17Printed in U S A http www nationalcom |
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