器件名称: HD74HC4538RPEL
功能描述: Dual Precision Retriggerable/Resettable Monostable Multivibrators
文件大小: 204.85KB 共14页
简 介:HD74HC4538
Dual Precision Retriggerable/Resettable Monostable Multivibrators
REJ03D0654-0200 (Previous ADE-205-543) Rev.2.00 Mar 30, 2006
Description
Each multivibrator features both a negative, A, and a positive, B, transition triggered input, either of which can be used as an inhibit input. Also included is a clear input that when taken low resets the one short. The HD74HC4538 is retriggerable. That is, it may be triggered repeatedly while their outputs are generating a pulse and the pulse will be extended. Pulse width stability over a wide range of temperature. The output pulse equation is simply: tw = 0.7 (R) (C).
Features
High Speed Operation: tpd (A or B to Y) = 22 ns typ (CL = 50 pF) High Output Current: Fanout of 10 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 A max Low Quiescent Supply Current Ordering Information
Part Name HD74HC4538P HD74HC4538FPEL HD74HC4538RPEL Package Type DILP-16 pin SOP-16 pin (JEITA) SOP-16 pin (JEDEC) Package Code (Previous Code) PRDP0016AE-B (DP-16FV) PRSP0016DH-B (FP-16DAV) Package Abbreviation P FP — EL (2,000 pcs/reel) EL (2,500 pcs/reel) Taping Abbreviation (Quantity)
PRSP0016DG-A RP (FP-16DNV) Note: Please consult the sales office for the above package availability.
Function Table
CD L H H H H Irrelevant Inputs A X L H L Outputs B X H Not triggered Not triggered Q L Q H
X :
Rev.2.00 Mar 30, 2006 page 1 of 13
HD74HC4538
Pin Arrangement
T1A T2A CDA AA BA QA QA GND 1 2 3 4 5 6 7 8 (Top view)
T1 T2……
