參數(shù)資料
型號: SN54AS756FK
廠商: Texas Instruments, Inc.
英文描述: OCTAL BUFFERS AND LINE DRIVERS WITH OPEN-COLLECTOR OUTPUTS
中文描述: 八路緩沖器和符合開放的驅(qū)動,集電極輸出
文件頁數(shù): 1/6頁
文件大?。?/td> 97K
代理商: SN54AS756FK
SN54AS756, SN74AS756, SN74AS757
OCTAL BUFFERS AND LINE DRIVERS
WITH OPEN-COLLECTOR OUTPUTS
SDAS040B – DECEMBER 1983 – REVISED JANUARY 1995
Copyright
1995, Texas Instruments Incorporated
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Open-Collector Outputs Drive Bus Lines or
Buffer Memory Address Registers
Eliminate the Need for 3-State Overlap
Protection
pnp Inputs Reduce dc Loading
Open-Collector Versions of
AS240A and
AS241
Package Options Include Plastic
Small-Outline (DW) Packages, Ceramic
Chip Carriers (FK), and Standard Plastic (N)
and Ceramic (J) 300-mil DIPs
description
These octal buffers and line drivers are designed
specifically to improve the performance and
density of 3-state memory address drivers, clock
drivers,
and
bus-oriented
transmitters by eliminating the need for 3-state
overlap protection. The designer has a choice of
selected
combinations
noninverting outputs, symmetrical active-low
output-enable (OE) inputs, and complementary
OE and OE inputs. These devices feature high
fan-out and improved fan-in.
receivers
and
of
inverting
and
The SN54AS756 is characterized for operation
over the full military temperature range of –55
°
C
to 125
°
C. The SN74AS756 and SN74AS757 are
characterized for operation from 0
°
C to 70
°
C.
logic symbols
2
1A1
4
1A2
6
1A3
8
1A4
EN
1
1Y1
18
1Y2
16
1Y3
14
1Y4
12
11
2A1
13
2A2
15
2A3
17
2A4
EN
19
2Y1
9
2Y2
7
2Y3
5
2Y4
3
1OE
2OE
AS756
2
1A1
4
1A2
6
1A3
8
1A4
EN
1
1Y1
18
1Y2
16
1Y3
14
1Y4
12
11
2A1
13
2A2
15
2A3
17
2A4
EN
19
2OE
2Y1
9
2Y2
7
2Y3
5
2Y4
3
1OE
SN74AS757
These symbols are in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
1OE
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
V
CC
2OE/2OE
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
SN54AS756 . . . J PACKAGE
SN74AS756, SN74AS757 . . . 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
1Y1
2A4
1Y2
2A3
1Y3
1A2
2Y3
1A3
2Y2
1A4
SN54AS756 . . . FK PACKAGE
(TOP VIEW)
2
1
1
1
2
2
2
G
2
V
C
2OE for
AS756 or 2OE for SN74AS757
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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