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参数资料
| 型号： | SN54HC640WR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 总线收发器 |
| 英文描述： | HC/UH SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, CDFP20 |
| 封装： | CERAMIC, FP-20 |
| 文件页数： | 1/7页 |
| 文件大小： | 105K |
| 代理商： | SN54HC640WR |
SN54HC640, SN74HC640
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCLS303A – JANUARY 1996 – REVISED MAY 1997
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Inverting 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 SN54HC640 is characterized for operation
over the full military temperature range of –55
°C
to 125
°C. The SN74HC640 is characterized for
operation from –40
°C to 85°C.
FUNCTION TABLE
INPUTS
OPERATION
OE
DIR
OPERATION
L
B data to A bus
L
HA data to B bus
H
X
Isolation
Copyright
1997, Texas Instruments Incorporated
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.
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.
SN54HC640 ...J OR W PACKAGE
SN74HC640 . . . DW OR N PACKAGE
(TOP VIEW)
SN54HC640 . . . 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 |
|---|---|
| SN54HC646FKR | HC/UH SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, CQCC28 |
| SN54HC646JT | HC/UH SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, CDIP24 |
| SN54HC646FK | HC/UH SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, CQCC28 |
| SN54HC652FK | HC/UH SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, CQCC28 |
| SN54HC652WR | HC/UH SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, CDFP24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SN54HC645J | 制造商:Texas Instruments 功能描述:OCTAL BUS TRANSCEIVER - Rail/Tube |
| SN54HC688J | 制造商:Texas Instruments 功能描述:Identity Comparator 8-Bit 20-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:IDENTITY COMPARATOR 8BIT 20CDIP - Rail/Tube |
| SN54HC74J | 制造商:Texas Instruments 功能描述:Flip Flop D-Type Pos-Edge 2-Element 14-Pin CDIP Tube 制造商:Texas Instruments 功能描述:FLIP FLOP D-TYPE POS-EDGE 2-ELEM 14CDIP - Rail/Tube 制造商:Texas Instruments 功能描述:DUAL D-TYPE FLIP-FLOP*NIC* |
| SN54HC85AJ | 制造商:Texas Instruments 功能描述: |
| SN54HC86J | 制造商:Texas Instruments 功能描述: 制造商:Texas Instruments 功能描述:QUAD 2-INPUT EXCLUSIVE-OR GATE - Rail/Tube 制造商:Texas Instruments 功能描述:XOR Gate 4-Element 2-IN CMOS 14-Pin CDIP Tube |
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