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74HCT4520 반도체 회로 부품 판매점

Dual 4-Bit Synchronous Binary Counter



NXP Semiconductors 로고
NXP Semiconductors
74HCT4520 데이터시트, 핀배열, 회로
74HC4520; 74HCT4520
Dual 4-bit synchronous binary counter
Rev. 3 — 4 December 2014
Product data sheet
1. General description
The 74HC4520; 74HCT4520 are dual 4-bit internally synchronous binary counters with
two clock inputs (nCP0 and nCP1). They have buffered outputs from all 4 bit positions
(nQ0 to nQ3) and an asynchronous master reset input (nMR). The counter advances on
the LOW-to-HIGH transition of nCP0 when nCP1 is HIGH. It also advances on the
HIGH-to-LOW transition of nCP1 when nCP0 is LOW. Either nCP0 or nCP1 may be used
as the clock input to the counter. The other clock input may be used as a clock enable
input. A HIGH on nMR, resets the counter (nQ0 to nQ3 = LOW) independent of nCP0 and
nCP1. Inputs include clamp diodes. It enables the use of current limiting resistors to
interface inputs to voltages in excess of VCC.
2. Features and benefits
Complies with JEDEC standard no. 7A
Input levels:
For 74HC4520: CMOS level
For 74HCT4520: TTL level
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
Multiple package options
Specified from 40 C to +85 C and 40 C to +125 C
3. Applications
Multistage synchronous counting
Multistage asynchronous counting
Frequency dividers


74HCT4520 데이터시트, 핀배열, 회로
NXP Semiconductors
74HC4520; 74HCT4520
Dual 4-bit synchronous binary counter
4. Ordering information
Table 1. Ordering information
Type number Package
Temperature
range
74HC4520N
40 C to +125 C
74HCT4520N
74HC4520D
40 C to +125 C
74HCT4520D
74HC4520DB 40 C to +125 C
74HCT4520DB
74HC4520PW 40 C to +125 C
Name
DIP16
SO16
SSOP16
TSSOP16
5. Functional diagram
Description
plastic dual in-line package; 16 leads (300 mil)
plastic small outline package; 16 leads;
body width 3.9 mm
plastic shrink small outline package; 16 leads;
body width 5.3 mm
plastic thin shrink small outline package; 16 leads;
body width 4.4 mm
Version
SOT38-4
SOT109-1
SOT338-1
SOT403-1
Fig 1. Functional diagram
1 1CP0
2 1CP1
7 1MR
9 2CP0
10 2CP1
15 2MR
1Q0 3
1Q1 4
1Q2 5
1Q3 6
2Q0 11
2Q1 12
2Q2 13
2Q3 14
001aae698
74HC_HCT4520
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 4 December 2014
© NXP Semiconductors N.V. 2014. All rights reserved.
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