Texas Instruments SN64BCT757DW, SN64BCT757DWR, SN64BCT757N Datasheet
SN64BCT757
OCTAL BUFFER/DRIVER
WITH OPEN-COLLECTOR OUTPUTS
SCBS479 – MARCH 1993 – REVISED MAY 1994
Copyright 1994, Texas Instruments Incorporated
3–1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
• BiCMOS Design Significantly Reduces I
CCZ
• ESD Protection Exceeds 2000 V Per
MIL-STD-883C, Method 3015; Exceeds
200 V Using Machine Model (C = 200 pF,
R = 0)
• High-Impedance State During Power Up
and Power Down
• Open-Collector Outputs Drive Bus Lines
or Buffer-Memory Address Registers
• Package Options Include Plastic
Small-Outline (DW) Packages and Standard
Plastic and Ceramic 300-mil DIPs (N)
description
This octal buffer and line driver is designed specifically to improve both the performance and density of 3-state
memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The device provides
complementary output-enable (OE and OE) inputs and noninverting outputs.
The SN64BCT757 is characterized for operation from –40°C to 85°C and 0°C to 70°C.
FUNCTION TABLES
INPUTS
OUTPUT
1OE 1A
1Y
H X H
L LL
L H H
INPUTS
OUTPUT
2OE 2A
2Y
L X H
H LL
H H H
DW OR N PACKAGE
(TOP VIEW)
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
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
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.
SN64BCT757
OCTAL BUFFER/DRIVER
WITH OPEN-COLLECTOR OUTPUTS
SCBS479 – MARCH 1993 – REVISED MAY 1994
3–2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
logic symbol
†
logic diagram (positive logic)
†
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
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
1
2
4
6
8
19
11
13
15
17
3
5
7
9
12
14
16
18
1A1
1A2
1A3
1A4
1Y1
2OE
2A1
2A2
2A3
2A4
2Y1
1Y2
1Y3
1Y4
2Y2
2Y3
2Y4
1OE
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
‡
Supply voltage range, V
CC
–0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, VI (see Note 1) –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the disabled or power-off state, V
O
–0.5 V to 5.5 V. . . . . . . . . . . . . . . .
Voltage range applied to any output in the high state, V
O
–0.5 V to V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, I
IK
(V
I
< 0) –30 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current into any output in the low state, IO 128 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range –40°C to 85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range –65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
‡
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The input negative-voltage ratings may be exceeded if the input clamp-current ratings are observed.
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