Std. and A speed grades
Power off disable outputs permit 鈥渓ive insertion鈥?/div>
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.
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
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
鈥揂
8
B
2
鈥揃
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
10 11 12 13
9
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
漏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
IDT54FCT621TPB相關(guān)型號PDF文件下載
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描述
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