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参数资料
| 型号： | SN54BCT25245FKR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 总线收发器 |
| 英文描述： | BCT/FBT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CQCC28 |
| 封装： | CERAMIC, LCC-28 |
| 文件页数： | 1/8页 |
| 文件大小： | 174K |
| 代理商： | SN54BCT25245FKR |
SN54BCT25245, SN74BCT25245
25-
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS053B – MAY 1990 – REVISED APRIL 1994
Copyright
1994, Texas Instruments Incorporated
2–1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
State-of-the-Art BiCMOS Design
Significantly Reduces ICCZ
ESD Protection Exceeds 2000 V Per
MIL-STD-883C, Method 3015; Exceeds
200 V Using Machine Model (C = 200 pF,
R = 0)
Designed to Facilitate Incident-Wave
Switching for Line Impedances of 25
or Greater
Distributed V
CC and GND Pins Minimize
Noise Generated by the Simultaneous
Switching of Outputs
Package Options Include Plastic
Small-Outline (DW) Packages, Ceramic
Chip Carriers (FK) and Flatpacks (W), and
Standard Plastic and Ceramic 300-mil DIPs
(JT, NT)
description
The
′BCT25245 is a 25- octal bus transceiver
designed
for
asynchronous
communication
between data buses. It improves both the
performance and density of 3-state memory
address drivers, clock drivers, and bus-oriented
transceivers.
The 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
level
at
the
direction-control (DIR) input. The output-enable
(OE) input can disable the device so that both
buses are effectively isolated.
These transceivers are capable of sinking 188-mA
IOL, which facilitates switching 25- transmission
lines on the incident wave. The distributed VCC
and GND pins minimize switching noise for more
reliable system operation.
The SN54BCT25245 is characterized for opera-
tion over the full military temperature range of
–55
°C to 125°C. The SN74BCT25245 is
characterized for operation from 0
°C to 70°C.
FUNCTION TABLE
INPUTS
OPERATION
OE
DIR
OPERATION
L
B data to A bus
L
H
A data to B bus
H
X
Isolation
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
A1
GND
A2
A3
GND
A4
A5
GND
A6
A7
GND
A8
DIR
B1
B2
VCC
B3
B4
B5
B6
VCC
B7
B8
OE
SN54BCT25245 . . . JT OR W PACKAGE
SN74BCT25245 . . . DW OR NT PACKAGE
(TOP VIEW)
32 1 28 27
12 13
5
6
7
8
9
10
11
25
24
23
22
21
20
19
OE
A8
GND
NC
A7
A6
GND
B3
VCC
B2
NC
B1
DIR
A1
426
14 15 16 17 18
GND
A2
A3
NC
GND
A4
A5
B4
B5
B6
NC
V
B7
B8
SN54BCT25245 . . . FK PACKAGE
(TOP VIEW)
CC
NC – No internal connection
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.
相关PDF资料 |
PDF描述 |
|---|---|
| SN54BCT25757JT | BCT/FBT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, CDIP24 |
| SN54BCT29826FK | BCT/FBT SERIES, 8-BIT DRIVER, INVERTED OUTPUT, CQCC28 |
| SN54BCT29828BJT | BCT/FBT SERIES, 10-BIT DRIVER, INVERTED OUTPUT, CDIP24 |
| SN74BCT29828BDW | BCT/FBT SERIES, 10-BIT DRIVER, INVERTED OUTPUT, PDSO24 |
| SN54BCT29863BDW | BCT/FBT SERIES, 9-BIT TRANSCEIVER, TRUE OUTPUT, PDSO24 |
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