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参数资料
| 型号： | SN54HCT645FKR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 总线收发器 |
| 英文描述： | HCT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CQCC20 |
| 封装： | CERAMIC, LCC-20 |
| 文件页数： | 1/9页 |
| 文件大小： | 193K |
| 代理商： | SN54HCT645FKR |
SN54HCT645, SN74HCT645
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCLS019B – MARCH 1984 – REVISED MAY 1997
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Inputs Are TTL-Voltage Compatible
D True Logic
D High-Current 3-State Outputs Can Drive up
to 15 LSTTL Loads
D Package Options Include Plastic
Small-Outline (DW) and Ceramic Flat (W)
Packages, Ceramic Chip Carriers (FK), and
Standard Plastic (N) and Ceramic (J)
300-mil DIPs
description
These octal bus transceivers are designed for
asynchronous two-way communication between
data buses. These devices transmit data from the
A bus to the B bus or from the B bus to the A bus,
depending upon the level at the direction-control
(DIR) input. The output-enable (OE) input can be
used to disable the device so the buses are
effectively isolated.
The SN54HCT645 is characterized for operation
over the full military temperature range of –55
°C
to 125
°C. The SN74HCT645 is characterized for
operation from –40
°C to 85°C.
FUNCTION TABLE
INPUTS
OPERATION
OE
DIR
OPERATION
L
B data to A bus
L
H
A data to B bus
H
X
Isolation
Copyright
1997, 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.
SN54HCT645 ...J OR W PACKAGE
SN74HCT645 . . . DW OR N PACKAGE
(TOP VIEW)
SN54HCT645 . . . FK PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
VCC
OE
B1
B2
B3
B4
B5
B6
B7
B8
32
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
A2
A1
DIR
B7
B6
OE
A8
GND
B8
V
CC
相关PDF资料 |
PDF描述 |
|---|---|
| SN54HCT645W | HCT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CDFP20 |
| SN54HCT652FK | HCT SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, CQCC28 |
| SN54HCT664JT-00 | HCT SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, CDIP24 |
| SNJ54HCT665JT-00 | HCT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CDIP24 |
| SNJ54HCT664JT-00 | HCT SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, CDIP24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SN54HCU04J | 制造商:Texas Instruments 功能描述:HEX INVERTER - Rail/Tube 制造商:Texas Instruments 功能描述:Inverter 6-Element CMOS 14-Pin CDIP Tube |
| SN54L00W | 制造商:MAJOR 功能描述: |
| SN54L46J | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN54L51J | 制造商:Texas Instruments 功能描述: |
| SN54L74T | 制造商:Texas Instruments 功能描述:Flip Flop, Dual, D Type, 14 Pin, Metal, Flat Pack |
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