![]() |
Electronic Components Datasheet Search |
|
HEF40162B Datasheet(PDF) 4 Page - NXP Semiconductors |
|
HEF40162B Datasheet(HTML) 4 Page - NXP Semiconductors |
4 / 10 page ![]() January 1995 4 Philips Semiconductors Product specification 4-bit synchronous decade counter with synchronous reset HEF40162B MSI HEF40162BP(N): 16-lead DIL; plastic (SOT38-1) HEF40162BD(F): 16-lead DIL; ceramic (cerdip) (SOT74) HEF40162BT(D): 16-lead SO; plastic (SOT109-1) ( ): Package Designator North America Fig.3 Pinning diagram. PINNING PE parallel enable input P0 to P3 parallel data inputs CEP count enable parallel input CET count enable trickle input CP clock input (LOW to HIGH, edge-triggered) SR synchronous reset input (active LOW) O0 to O3 parallel outputs TC terminal count output SYNCHRONOUS MODE SELECTION Notes 1. H = HIGH state (the more positive voltage) 2. L = LOW state (the less positive voltage) 3. X = state is immaterial SR PE CEP CET MODE H L X X preset H H L X no change H H X L no change H H H H count L X X X reset TERMINAL COUNT GENERATION Note 1. TC = CET ⋅ O0 ⋅ O1 ⋅ O2 ⋅ O3 CET (O0 ⋅ O1 ⋅ O2 ⋅ O3)TC LL L LH L HL L HH H Fig.4 State diagram. |