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參數(shù)資料
| 型號(hào)： | SN54BCT620AW |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
| 中文描述： | 八路總線收發(fā)器與三態(tài)輸出 |
| 文件頁(yè)數(shù)： | 1/5頁(yè) |
| 文件大小： | 79K |
| 代理商： | SN54BCT620AW |
SN54BCT620A, SN74BCT620A
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS001B – SEPTEMBER 1987 – REVISED NOVEMBER 1993
Copyright
1993, Texas Instruments Incorporated
2–1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
State-of-the-Art BiCMOS Design
Significantly Reduces I
CCZ
P-N-P Inputs Reduce DC Loading
ESD Protection Exceeds 2000 V
Per MIL-STD-883C, Method 3015
Package Options Include Plastic
Small-Outline (DW) Packages, Ceramic
Chip Carriers (FK) and Flatpacks (W), and
Plastic and Ceramic 300-mil DIPs (J, N)
description
The
′
BCT620A bus transceiver is designed for
asynchronous communication between data
buses. The control function implementation allows
for maximum flexibility in timing. The
′
BCT620A
provides inverted data at its outputs.
These 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.
The output-enable inputs can be used to disable
the device so that the buses are effectively
isolated. The dual-enable configuration gives the
transceivers the capability of storing data by
simultaneously enabling OEAB and OEBA. When
both OEAB and OEBA 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. In this way, each output
reinforces its input in this configuration.
The SN54BCT620A is characterized for operation
over the full military temperature range of –55
°
C
to 125
°
C. The SN74BCT620A is characterized for
operation from 0
°
C to 70
°
C.
FUNCTION TABLE
INPUTS
OPERATION
OEBA
L
OEAB
L
B data to A bus
L
H
B data to A bus,
A data to B bus
H
L
Isolation
H
H
A data to B bus
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
V
CC
OEBA
B1
B2
B3
B4
B5
B6
B7
B8
SN54BCT620A . . . J OR W PACKAGE
SN74BCT620A . . . DW OR N PACKAGE
(TOP VIEW)
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
B1
B2
B3
B4
B5
A3
A4
A5
A6
A7
SN54BCT620A . . . FK PACKAGE
(TOP VIEW)
A
A
O
B
B
O
A
G
B
V
C
PRODUCTION DATA information is 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.
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|---|---|
| SN54BCT623FK | OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
| SN74BCT623DW | SBS v1.1 Compliant Gas Gauge for use with the BQ29312A 36-VQFN |
| SN54BCT623J | OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
| SN54BCT623W | OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
| SN54BCT640FK | OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
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