HD74HCT643T datasheet, PDF - EEWORLD Datasheet

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HD74HCT643T: DescriptionBus Transceiver, HCT Series, 1-Func, 8-Bit, True Output, CMOS, PDSO20, TSOP-20; Categorylogic logic; File Size68KB，8 Pages; ManufacturerHitachi （Renesas ）; Websitehttp://www.renesas.com/eng/

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HD74HCT643T Overview

Bus Transceiver, HCT Series, 1-Func, 8-Bit, True Output, CMOS, PDSO20, TSOP-20

HD74HCT643T Parametric

Parameter Name	Attribute value
Maker	Hitachi （Renesas ）
Parts packaging code	TSOP
package instruction	TSSOP,
Contacts	20
Reach Compliance Code	unknown
Other features	WITH DIRECTION CONTROL
series	HCT
JESD-30 code	R-PDSO-G20
length	6.5 mm
Load capacitance (CL)	50 pF
Logic integrated circuit type	BUS TRANSCEIVER
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	TRUE
Package body material	PLASTIC/EPOXY
encapsulated code	TSSOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
propagation delay (tpd)	23 ns
Certification status	Not Qualified
Maximum seat height	1.1 mm
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	4.5 V
Nominal supply voltage (Vsup)	5 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
width	4.4 mm

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HD74HCT640/HD74HCT643

Octal Bus Transceivers (with 3-state outputs)

ADE-205-562 (Z)

1st. Edition

Sep. 2000

Description

Both the HD74HCT640 and the HD74HCT643 have one active low enable input (G), and a direction

control (DIR). When the DIR input is high, data flows from the A inputs to the B outputs. When DIR is

low, data flows from B to A.

The HD74HCT640 transfers inverted data from one bus to the other. The HD74HCT643 transfers inverted

data from the A bus to the B bus and non-inverted data from the B bus to the A bus.

Features

•

LSTTL Output Logic Level Compatibility as well as CMOS Output Compatibility

•

High Speed Operation: t

(A to B) = 14.5 ns typ (C

= 50 pF)

High Output Current: Fanout of 15 LSTTL Loads

Wide Operating Voltage: V

= 4.5 to 5.5 V

Low Input Current: 1 µA max

Low Quiescent Supply Current: I

(static) = 4 µA max (Ta = 25°C)

Function Table

Control Input

DIR

Operation

HD74HCT640

data to A bus

data to B bus

Isolation

HD74HCT643

B data to A bus

data to B bus

Isolation

HD74HCT643T Related Products

	HD74HCT643T	HD74HCT640RP	HD74HCT640T	HD74HCT640FP	HD74HCT643RP	HD74HCT643FP	HD74HCT643P
Description	Bus Transceiver, HCT Series, 1-Func, 8-Bit, True Output, CMOS, PDSO20, TSOP-20	Bus Transceiver, HCT Series, 1-Func, 8-Bit, Inverted Output, CMOS, PDSO20,	Bus Transceiver, HCT Series, 1-Func, 8-Bit, Inverted Output, CMOS, PDSO20, TSOP-20	Bus Transceiver, HCT Series, 1-Func, 8-Bit, Inverted Output, CMOS, PDSO20,	Bus Transceiver, HCT Series, 1-Func, 8-Bit, True Output, CMOS, PDSO20	Bus Transceiver, HCT Series, 1-Func, 8-Bit, True Output, CMOS, PDSO20	Bus Transceiver, HCT Series, 1-Func, 8-Bit, True Output, CMOS, PDIP20, DP-20N
package instruction	TSSOP,	SOP,	TSSOP,	SOP,	SOP,	SOP,	DIP, DIP20,.3
Reach Compliance Code	unknown	unknown	unknown	unknown	unknown	unknown	unknown
series	HCT	HCT	HCT	HCT	HCT	HCT	HCT
JESD-30 code	R-PDSO-G20	R-PDSO-G20	R-PDSO-G20	R-PDSO-G20	R-PDSO-G20	R-PDSO-G20	R-PDIP-T20
length	6.5 mm	12.8 mm	6.5 mm	12.6 mm	12.8 mm	12.6 mm	24.5 mm
Logic integrated circuit type	BUS TRANSCEIVER	BUS TRANSCEIVER	BUS TRANSCEIVER	BUS TRANSCEIVER	BUS TRANSCEIVER	BUS TRANSCEIVER	BUS TRANSCEIVER
Number of digits	8	8	8	8	8	8	8
Number of functions	1	1	1	1	1	1	1
Number of ports	2	2	2	2	2	2	2
Number of terminals	20	20	20	20	20	20	20
Maximum operating temperature	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C
Output characteristics	3-STATE	3-STATE	3-STATE	3-STATE	3-STATE	3-STATE	3-STATE
Output polarity	TRUE	INVERTED	INVERTED	INVERTED	TRUE	TRUE	TRUE
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	TSSOP	SOP	TSSOP	SOP	SOP	SOP	DIP
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	IN-LINE
propagation delay (tpd)	23 ns	23 ns	23 ns	23 ns	23 ns	23 ns	23 ns
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	1.1 mm	2.65 mm	1.1 mm	2.2 mm	2.65 mm	2.2 mm	5.08 mm
Maximum supply voltage (Vsup)	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V
Minimum supply voltage (Vsup)	4.5 V	4.5 V	4.5 V	4.5 V	4.5 V	4.5 V	4.5 V
Nominal supply voltage (Vsup)	5 V	5 V	5 V	5 V	5 V	5 V	5 V
surface mount	YES	YES	YES	YES	YES	YES	NO
technology	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	THROUGH-HOLE
Terminal pitch	0.65 mm	1.27 mm	0.65 mm	1.27 mm	1.27 mm	1.27 mm	2.54 mm
Terminal location	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
width	4.4 mm	7.5 mm	4.4 mm	5.5 mm	7.5 mm	5.5 mm	7.62 mm
Maker	Hitachi （Renesas ）	-	-	Hitachi （Renesas ）	Hitachi （Renesas ）	Hitachi （Renesas ）	Hitachi （Renesas ）

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