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HD74HC623 PDF даташит

Спецификация HD74HC623 изготовлена ​​​​«Hitachi Semiconductor» и имеет функцию, называемую «Octal Bus Transceivers(with inverted 3-state outputs)».

Детали детали

Номер произв HD74HC623
Описание Octal Bus Transceivers(with inverted 3-state outputs)
Производители Hitachi Semiconductor
логотип Hitachi Semiconductor логотип 

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HD74HC623 Даташит, Описание, Даташиты
HD74HC620/HD74HC623
Octal Bus Transceivers (with inverted 3-state outputs)
Octal Bus Transceivers (with 3-state outputs)
Description
This octal bus transceiver is designed for asynchronous two-way communication between data buses. The
control fuction implementation allows for maximum flexibility in timing.
This device allows data transmission from the A bus to the B bus or from the B bus to the A bus depending
upon the logic levels at the enable inputs (GBA and GAB).
The enable inputs can be used to disable the device so that the buses are effectively isolated.
The dual-enable configuration gives these devices the capability to store data by simultaneous enabling of
GBA and GAB. Each output reinforces its input in this transceiver configuration. Thus, when both control
inputs are enabled and all other data sources to the two sets of bus lines are at high impedance, both sets of
bus lines (16 in all) will remain at their last states. The 8-bit codes appearing on the two sets of buses will
be identical for the HD74HC623 or coplementary for the HD74HC620.
Features
High Speed Operation: tpd (Bus to Bus) = 12 ns typ (CL = 50 pF)
High Output Current: Fanout of 15 LSTTL Loads
Wide Operating Voltage: VCC = 2 to 6 V
Low Input Current: 1 µA max
Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)
Function Table
Enable Inputs
GBA
L
H
H
L
GAB
L
H
L
H
Operation
HD74HC620
B data to A bus
A data to B bus
Isolation
B data to A bus, A data to B bus
HD74HC623
B data to A bus
A data to B bus
Isolation
B data to A bus, A data to B bus









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HD74HC623 Даташит, Описание, Даташиты
HD74HC620/HD74HC623
Pin Arrangement
Enable GAB 1
A1 2
A2 3
A3 4
A4 5
A5 6
A6 7
A7 8
A8 9
GND 10
(Top view)
20 VCC
19 Enable GBA
18 B1
17 B2
16 B3
15 B4
14 B5
13 B6
12 B7
11 B8
Absolute Maximum Ratings
Item
Supply voltage range
Input voltage
Output voltage
Output current
DC current drain per VCC GND
DC input diode current
DC output diode current
Power Dissipation per package
Storage temperature
Symbol
VCC
VIN
VOUT
I OUT
ICC, IGND
I IK
I OK
PT
Tstg
Rating
–0.5 to +7.0
–0.5 to VCC + 0.5
–0.5 to VCC + 0.5
±35
±75
±20
±20
500
–65 to +150
Unit
V
V
V
mA
mA
mA
mA
mW
°C
2









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HD74HC623 Даташит, Описание, Даташиты
Block Diagram
HD74HC620
GBA
GAB
A1
VCC
A2
A3
A4
A5
A6
A7
A8
HD74HC620/HD74HC623
VCC
B1
B2
B3
B4
B5
B6
B7
B8
3










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Номер в каталогеОписаниеПроизводители
HD74HC620Octal Bus Transceivers(with inverted 3-state outputs)Hitachi Semiconductor
Hitachi Semiconductor
HD74HC620Octal Bus TransceiversRenesas
Renesas
HD74HC623Octal Bus Transceivers(with inverted 3-state outputs)Hitachi Semiconductor
Hitachi Semiconductor
HD74HC623Octal Bus TransceiversRenesas
Renesas

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