Texas Instruments SN74AS1008AD, SN74AS1008ADR, SN74AS1008AN Datasheet
SN74AS1008A
QUADRUPLE 2-INPUT POSITIVE-AND BUFFER/DRIVER
SDAS071B – DECEMBER 1982 – REVISED JANUARY 1995
• Driver V ersion of ′AS08
• Offers High Capacitive-Drive Capability
• Package Options Include Plastic
Small-Outline (D) Packages and Standard
Plastic (N) 300-mil DIPs
description
This device contains four independent 2-input
positive-AND buffers/drivers. It performs the
Boolean functions Y = A • B or Y = A
logic.
The SN74AS1008A is characterized for operation
from 0°C to 70°C.
logic symbol
†
+ B in positive
FUNCTION TABLE
(each gate)
INPUTS
A B
H H H
L XL
XLL
OUTPUT
Y
logic diagram (positive logic)
D OR N PACKAGE
(TOP VIEW)
1A
1
1B
2
1Y
3
2A
4
2B
5
2Y
6
GND
7
14
13
12
11
10
V
CC
4B
4A
4Y
3B
3A
9
3Y
8
1
1A
2
1B
4
2A
5
2B
9
3A
10
3B
12
4A
13
4B
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.
&
3
1Y
6
2Y
8
3Y
11
4Y
1A
1B
2A
2B
3A
3B
4A
4B
1
2
4
5
9
10
12
13
3
1Y
6
2Y
8
3Y
11
4Y
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
Input voltage, V
Operating free-air temperature range, T
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.
7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CC
7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I
0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A
‡
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.
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Copyright 1995, Texas Instruments Incorporated
1
SN74AS1008A
V
V
A or B
Y
ns
QUADRUPLE 2-INPUT POSITIVE-AND BUFFER/DRIVER
SDAS071B – DECEMBER 1982 – REVISED JANUARY 1995
recommended operating conditions
V
CC
V
IH
V
IL
I
OH
I
OL
T
A
†
This high sink- or source-current device is not recommended for use above 40 MHz.
Supply voltage 4.5 5 5.5 V
High-level input voltage 2 V
Low-level input voltage 0.8 V
High-level output current –48 mA
Low-level output current 48 mA
Operating free-air temperature 0 70 °C
†
MIN NOM MAX UNIT
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP‡MAX UNIT
V
IK
V
OH
V
OL
I
I
I
IH
I
IL
§
I
O
I
CCH
I
‡
All typical values are at VCC = 5 V, TA = 25°C.
§
The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.
CCL
VCC = 4.5 V, II = –18 mA –1.2 V
VCC = 4.5 V to 5.5 V, IOH = –2 mA VCC –2
= 4.5
CC
VCC = 4.5 V, IOL = 48 mA 0.35 0.5 V
VCC = 5.5 V, VI = 7 V 0.1 mA
VCC = 5.5 V, VI = 2.7 V 20 µA
VCC = 5.5 V, VI = 0.4 V –0.5 mA
VCC = 5.5 V, VO = 2.25 V –50 –200 mA
VCC = 5.5 V, VI = 4.5 V 5.6 9.5 mA
VCC = 5.5 V, VI = 0 13.5 22 mA
IOH = –3 mA 2.4 3.2
IOH = –48 mA 2
V
switching characteristics (see Figure 1)
VCC = 4.5 V to 5.5 V,
PARAMETER
t
PLH
t
¶
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
PHL
FROM
(INPUT)
TO
(OUTPUT)
CL = 50 pF,
RL = 500 Ω,
TA = MIN to MAX
MIN MAX
1 6
1 6
UNIT
¶
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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