HEF4528B Datasheet, PDF (1/16 Pages) NXP Semiconductors – Dual monostable multivibrator

HEF4528B
Dual monostable multivibrator
Rev. 06 — 27 November 2009
Product data sheet
1. General description
The HEF4528B is a dual retriggerable-resettable monostable multivibrator. Each
multivibrator has an active LOW input (nA), and active HIGH input (nB), an active LOW
clear direct input (nCD), an output (nQ) and its complement (nQ), and two external timing
component connecting pins (nCEXT, always connected to ground, and nREXT/CEXT).
An external timing capacitor (C_EXT) must be connected between nCEXT and
nREXT/CEXT and an external resistor (R_EXT) must be connected between nREXT/CEXT
and V_DD. The output pulse duration is determined by the external timing components
C_EXT and R_EXT. A HIGH-to-LOW transition on nA when nB is LOW or a LOW-to-HIGH
transition on nB when nA is HIGH produces a positive pulse (LOW-HIGH-LOW) on nQ
and a negative pulse (HIGH-LOW-HIGH) on nQ if the nCD is HIGH. A LOW on nCD forces
nQ LOW, nQ HIGH and inhibits any further pulses until nCD is HIGH.
It operates over a recommended V_DD power supply range of 3 V to 15 V referenced to V_SS
(usually ground). Unused inputs must be connected to V_DD, V_SS, or another input. It is
also suitable for use over the full industrial (−40 °C to +85 °C) temperature range.
2. Features
I Fully static operation
I 5 V, 10 V, and 15 V parametric ratings
I Standardized symmetrical output characteristics
I Operates across the full industrial temperature range −40 °C to +85 °C
I Complies with JEDEC standard JESD 13-B
3. Applications
I Industrial
4. Ordering information
Table 1. Ordering information
All types operate from −40 °C to +85 °C.
Type number
Package
Name
Description
HEF4528BP
DIP16
plastic dual in-line package; 16 leads (300 mil)
HEF4528BT
SO16
plastic small outline package; 16 leads; body width 3.9 mm
Version
SOT38-4
SOT109-1