Specification	74HC4520D,118

Count Rate	69 MHz
Direction	Up
Logic Type	Binary Counter
Mounting Type	Surface Mount
Number of Bits per Element	4
Number of Elements	2
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 C
Package / Case	16-SOIC
Package / Case	0.154 in, 3.9 mm
Reset	Asynchronous
Supplier Device Package	16-SO
Timing	Synchronous
Trigger Type	Negative, Positive
Voltage - Supply [Max]	6 V
Voltage - Supply [Min]	2 V

74HC4520D Series

Dual 4-bit synchronous binary counter

Part	Number of Elements	Timing	Trigger Type	Direction	Logic Type	Supplier Device Package	Count Rate	Reset	Mounting Type	Package / Case	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Number of Bits per Element	Voltage - Supply [Min]	Voltage - Supply [Max]
Nexperia USA Inc. 74HC4520D,118	2	Synchronous	Negative Positive	Up	Binary Counter	16-SO	69 MHz	Asynchronous	Surface Mount	16-SOIC	0.154 in 3.9 mm	125 °C	-40 C	4	2 V	6 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Bulk	1151	$ 0.26
	N/A	2112	$ 0.80

Description

General part information

74HC4520D Series

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.