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IDT74FCT621TSOB

Description
FAST CMOS OCTAL BUS TRANSCEIVER (OPEN DRAIN)
File Size45KB,6 Pages
ManufacturerIDT (Integrated Device Technology, Inc.)
Websitehttp://www.idt.com/
Download Datasheet View All

IDT74FCT621TSOB Overview

FAST CMOS OCTAL BUS TRANSCEIVER (OPEN DRAIN)

IDT54/74FCT621T/AT
FAST CMOS OCTAL BUS TRANSCEIVER (OPEN DRAIN)
MILITARY AND COMMERCIAL TEMPERATURE RANGES
FAST CMOS
OCTAL BUS TRANSCEIVER
(OPEN DRAIN)
Integrated Device Technology, Inc.
IDT54/74FCT621T/AT
FEATURES:
Std. and A speed grades
Low input and output leakage
≤1µA
(max.)
CMOS power levels
True TTL input and output compatibility
– V
OH
= 3.3V (typ.)
– V
OL
= 0.3V (typ.)
Power off disable outputs permit “live insertion”
Meets or exceeds JEDEC standard 18 specifications
Product available in Radiation Tolerant and Radiation
Enhanced versions
Military product compliant to MIL-STD-883, Class B
and DESC listed (dual marked)
Available in DIP, SOIC, CERPACK and LCC packages
DESCRIPTION:
The IDT54/74FCT621T/AT is an octal transceiver with
non-inverting Open-Drain bus compatible outputs in both
send and receive directions. The B bus outputs are capable
of sinking 64mA providing very good capacitive drive
characteristics. These octal bus transceivers are designed for
asynchronous two-way communication between data buses.
The control function implementation allows for maximum
flexibility in timing.
FUNCTIONAL BLOCK DIAGRAM
(1)
PIN CONFIGURATIONS
GAB
A
1
A
2
A
3
A
4
A
5
A
6
A
7
A
8
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
GBA
GAB
P20-1,
D20-1,
SO20-2
&
E20-1
A
1
B
1
Vcc
GBA
B
1
B
2
B
3
B
4
B
5
B
6
B
7
B
8
2538 drw 02
DIP/SOIC/CERPACK
TOP VIEW
INDEX
A
2
–A
8
B
2
–B
8
7 Other Transceivers
2538 drw 01
A
3
A
4
A
5
A
6
A
7
A
2
A
1
GAB
Vcc
GBA
3
4
5
6
7
8
2
20 19
18
1
17
16
15
14
9 10 11 12 13
L20-2
B
1
B
2
B
3
B
4
B
5
2538 drw 03
LCC
TOP VIEW
The IDT logo is a registered trademark of Integreted Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
©1995
Integrated Device Technology, Inc.
A
8
GND
B
8
B
7
B
6
APRIL 1994
DSC-4222/4
6.18
6.18
1
1
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