M74HC590 datasheet(1/15 Pages) STMICROELECTRONICS

Part #	M74HC590

Description	8 BINARY COUNTER REGISTER WITH 3 STATE OUTPUT

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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August 2001

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HIGH SPEED:

fMAX = 61 MHz (TYP.) at VCC = 6V

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LOW POWER DISSIPATION:

ICC = 4µA(MAX.) at TA=25°C

s

HIGH NOISE IMMUNITY:

VNIH = VNIL = 28 % VCC (MIN.)

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SYMMETRICAL OUTPUT IMPEDANCE:

|IOH| = IOL = 6mA (MIN) for QA ~ QH OUTPUT

|IOH| = IOL = 4mA (MIN) for RCO OUTPUT

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BALANCED PROPAGATION DELAYS:

tPLH ≅ tPHL

s

WIDE OPERATING VOLTAGE RANGE:

VCC (OPR) = 2V to 6V

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PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 590

DESCRIPTION

The M74HC590 is an high speed CMOS 8-BIT

BINARY

COUNTER

REGISTER

(3

STATE)

fabricated with silicon gate C2MOS technology.

This device contains an 8-bit binary counter that

feeds an 8-bit storage register. The storage

register has parallel outputs. Separate clocks are

provided for both the binary counter and storage

register. The binary counter features a direct clear

input CCLR and a count enable input CCKEN. For

cascading, a ripple carry output RCO is provided.

Expansion is easily accomplished by tying RCO of

the first stage to CCKEN of the second stage, etc.

Both the counter and register clocks are positive

edge triggered. If the user wishes to connect both

clocks together, the counter state will always be

one count ahead of the register. Internal circuitry

prevents clocking from the clock enable. All inputs

are equipped with protection circuits against static

discharge and transient excess voltage.

M74HC590

8 BINARY COUNTER REGISTER

WITH 3 STATE OUTPUT

PIN CONNECTION AND IEC LOGIC SYMBOLS

ORDER CODES

PACKAGE

TUBE

T & R

DIP

M74HC590B1R

SOP

M74HC590M1R

M74HC590RM13TR

TSSOP

M74HC590TTR

TSSOP

DIP

SOP

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