HEF4520B datasheet, PDF - EEWORLD Datasheet

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HEF4520B: Description4000/14000/40000 SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDIP16; Categorysemiconductor logic; File Size104KB，14 Pages; ManufacturerNXP; Websitehttps://www.nxp.com

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HEF4520B Overview

4000/14000/40000 SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDIP16

HEF4520B Parametric

Parameter Name	Attribute value
Number of functions	2
Number of terminals	16
Maximum operating temperature	85 Cel
Minimum operating temperature	-40 Cel
Maximum supply/operating voltage	15 V
Minimum supply/operating voltage	3 V
Rated supply voltage	5 V
Processing package description	0.300 INCH, Plastic, SOT38-4, DIP-16
Lead-free	Yes
EU RoHS regulations	Yes
China RoHS regulations	Yes
state	ACTIVE
Craftsmanship	CMOS
packaging shape	Rectangle
Package Size	IN-line
Terminal form	THROUGH-hole
Terminal spacing	2.54 mm
terminal coating	Nickel Palladium
Terminal location	pair
Packaging Materials	Plastic/Epoxy
Temperature level	INDUSTRIAL
series	4000/14000/40000
Counting direction	UP
Load preset input	NONE
Logic IC type	binary counter
Operating mode	SYN
Number of digits	4
propagation delay TPD	220 ns
Trigger type	POSITIVE edge
Max-Min frequency	40 MHz

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HEF4520B

Dual binary counter

Rev. 6 — 18 November 2011

Product data sheet

1. General description

The HEF4520B is a dual 4-bit internally synchronous binary counter. The counter has an

active HIGH clock input (nCP0) and an active LOW clock input (nCP1), buffered outputs

from all four bit positions (nQ0 to nQ3) and an active HIGH overriding asynchronous

master reset input (nMR).

The counter advances on either the LOW-to-HIGH transition of the nCP0 input if nCP1 is

HIGH or the HIGH-to-LOW transition of the nCP1 input if nCP0 is LOW. Either nCP0 or

nCP1 may be used as the clock input to the counter while the other clock input may be

used as a clock enable input. Schmitt trigger action makes the clock input highly tolerant

of slower clock rise and fall times. A HIGH on nMR resets the counter (nQ0 to

nQ3 = LOW) independent of nCP0 and nCP1.

It operates over a recommended V

power supply range of 3 V to 15 V referenced to V

(usually ground). Unused inputs must be connected to V

, V

, or another input.

2. Features and benefits



Tolerant of slow clock rise and fall times

Fully static operation

5 V, 10 V, and 15 V parametric ratings

Standardized symmetrical output characteristics

Specified from

40 C

to +85

C

Complies with JEDEC standard JESD 13-B

3. Ordering information

Table 1.

Ordering information

All types operate from





C to +85



Type number

HEF4520BP

HEF4520BT

Package

Name

DIP16

SO16

Description

plastic dual in-line package; 16 leads (300 mil)

plastic small outline package; 16 leads; body width 3.9 mm

Version

SOT38-4

SOT109-1

HEF4520B Related Products

	HEF4520B	HEF4520BP	HEF4520BT	HEF4520BT-653
Description	4000/14000/40000 SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDIP16	4000/14000/40000 SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDIP16	4000/14000/40000 SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16	4000/14000/40000 SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDIP16
Number of functions	2	2	2	2
Number of terminals	16	16	16	16
Maximum operating temperature	85 Cel	85 °C	85 °C	85 Cel
Minimum operating temperature	-40 Cel	-40 °C	-40 °C	-40 Cel
Terminal form	THROUGH-hole	THROUGH-HOLE	GULL WING	THROUGH-hole
Terminal location	pair	DUAL	DUAL	pair
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
series	4000/14000/40000	4000/14000/40000	4000/14000/40000	4000/14000/40000
Counting direction	UP	UP	UP	UP
Operating mode	SYN	SYNCHRONOUS	SYNCHRONOUS	SYN
Number of digits	4	4	4	4
Trigger type	POSITIVE edge	POSITIVE EDGE	POSITIVE EDGE	POSITIVE edge

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