HD74HC640P datasheet, PDF - EEWORLD Datasheet

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HD74HC640P: DescriptionBus Transceiver, HC/UH Series, 1-Func, 8-Bit, Inverted Output, CMOS, PDIP20, DP-20N; Categorylogic logic; File Size68KB，11 Pages; ManufacturerHitachi （Renesas ）; Websitehttp://www.renesas.com/eng/

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HD74HC640P Overview

Bus Transceiver, HC/UH Series, 1-Func, 8-Bit, Inverted Output, CMOS, PDIP20, DP-20N

HD74HC640P Parametric

Parameter Name	Attribute value
Maker	Hitachi （Renesas ）
Parts packaging code	DIP
package instruction	DIP, DIP20,.3
Contacts	20
Reach Compliance Code	unknown
Control type	COMMON CONTROL
Counting direction	BIDIRECTIONAL
series	HC/UH
JESD-30 code	R-PDIP-T20
length	24.5 mm
Logic integrated circuit type	BUS TRANSCEIVER
MaximumI(ol)	0.006 A
Number of digits	8
Number of functions	1
Number of ports	2
Number of terminals	20
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Output characteristics	3-STATE
Output polarity	INVERTED
Package body material	PLASTIC/EPOXY
encapsulated code	DIP
Encapsulate equivalent code	DIP20,.3
Package shape	RECTANGULAR
Package form	IN-LINE
power supply	2/6 V
Prop。Delay @ Nom-Sup	23 ns
propagation delay (tpd)	115 ns
Certification status	Not Qualified
Maximum seat height	5.08 mm
Maximum supply voltage (Vsup)	6 V
Minimum supply voltage (Vsup)	2 V
Nominal supply voltage (Vsup)	4.5 V
surface mount	NO
technology	CMOS
Temperature level	INDUSTRIAL
Terminal form	THROUGH-HOLE
Terminal pitch	2.54 mm
Terminal location	DUAL
translate	N/A
width	7.62 mm

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HD74HC640/HD74HC643

Octal Bus Transceivers (with 3-state outputs)

Description

Each device has an active enable

and a direction control input, DIR. when DIR is high, data flows from

the A inputs to the B outputs. When DIR is low, data flows from the B inputs to the A outputs. The

HD74HC640 transfers inverted data from one bus to other and the HD74HC643 transfers inverted data

from the A bus to the B bus and true data from the B bus to the A bus.

Features

•

High Speed Operation: t

= 12 ns typ (C

= 50 pF)

•

High Output Current: Fanout of 15 LSTTL Loads

Wide Operating Voltage: V

= 2 to 6 V

Low Input Current: 1 µA max

Low Quiescent Supply Current: I

(static) = 4 µA max (Ta = 25°C)

Function Table

Control Inputs

DIR

Operation

HD74HC640

data to A bus

data to B bus

Isolation

HD74HC643

B data to A bus

data to B bus

Isolation

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