参数资料
型号: SNJ54HC623FK
厂商: TEXAS INSTRUMENTS INC
元件分类: 总线收发器
英文描述: HC/UH SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CQCC20
封装: CERAMIC, LCC-20
文件页数: 1/14页
文件大小: 526K
代理商: SNJ54HC623FK
SN54HC623, SN74HC623
OCTAL BUS TRANSCEIVERS
WITH 3STATE OUTPUTS
SCLS149C – DECEMBER 1982 – REVISED DECEMBER 2002
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Wide Operating Voltage Range of 2 V to 6 V
D High-Current 3-State Outputs Can Drive Up
To 15 LSTTL Loads
D Low Power Consumption, 80-A Max ICC
D Typical tpd = 8 ns
D ±6-mA Output Drive at 5 V
D Low Input Current of 1 A Max
D Lock Bus-Latch Capability
D True Logic
description/ordering information
These octal bus transceivers are designed for
asynchronous two-way communication between
data buses. The control-function implementation
allows for maximum flexibility in timing.
The ’HC623 devices allow 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
output-enable (OEAB and OEBA) inputs.
OEAB and OEBA disable the device so that the
buses are effectively isolated. The dual-enable
configuration gives the transceivers the capability
to store data by simultaneously enabling OEAB
and OEBA. Each output reinforces its input in this
transceiver configuration. When both OEAB and
OEBA are enabled and all other data sources to
the two sets of bus lines are in the high-impedance
state, both sets of bus lines (16 total) remain at
their last states. The 8-bit codes appearing on the
two sets of buses are identical.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP – N
Tube
SN74HC623N
40
°Cto85°C
SOIC
DW
Tube
SN74HC623DW
HC623
–40
°C to 85°C
SOIC – DW
Tape and reel
SN74HC623DWR
HC623
SOP – NS
Tape and reel
SN74HC623NSR
HC623
CDIP – J
Tube
SNJ54HC623J
–55
°C to 125°C
CFP – W
Tube
SNJ54HC623W
LCCC – FK
Tube
SNJ54HC623FK
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design
guidelines are available at www.ti.com/sc/package.
Copyright
2002, Texas Instruments Incorporated
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information current as of publication date. Products conform to
specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all
parameters.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
SN54HC623 ...J OR W PACKAGE
SN74HC623 ...DW, N, OR NS PACKAGE
(TOP VIEW)
SN54HC623 . . . FK PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OEAB
A1
A2
A3
A4
A5
A6
A7
A8
GND
VCC
OEBA
B1
B2
B3
B4
B5
B6
B7
B8
32 1 20 19
910 11 1213
4
5
6
7
8
18
17
16
15
14
B1
B2
B3
B4
B5
A3
A4
A5
A6
A7
A2
A1
OEAB
B7
B6
V
OEBA
A8
GND
B8
CC
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