TI SN74ALS22BN

SN54ALS22B, SN74ALS22B
DUAL 4-INPUT POSITIVE-NAND GATES
WITH OPEN-COLLECTOR OUTPUTS
SDAS005A – MARCH 1984 – REVISED MAY 1986
•
•
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SN54ALS22B . . . J PACKAGE
SN74ALS22B . . . D OR N PACKAGE
(TOP VIEW)
1A
1B
NC
1C
1D
1Y
GND
description
The SN54ALS22B is characterized for operation
over the full military temperature range of 55°C
to 125°C. The SN74ALS22B is characterized for
operation from 0°C to 70°C.
INPUTS
B
C
D
H
H
H
H
L
L
X
X
X
H
X
L
X
X
H
X
X
L
X
H
X
X
X
L
H
3
12
4
11
5
10
6
9
7
8
VCC
2D
2C
NC
2B
2A
2Y
SN54ALS22B . . . FK PACKAGE
(TOP VIEW)
NC
NC
1C
NC
1D
OUTPUT
A
13
4
3 2 1 20 19
18
5
17
6
16
7
15
8
14
9 10 11 12 13
2C
NC
NC
NC
2B
1Y
GND
NC
2Y
2A
FUNCTION TABLE
(each gate)
14
2
1B
1A
NC
VCC
2D
These devices contain two independent 4-input
NAND gates. They perform the Boolean functions
Y = A•B•C•D or Y = A+B+C+D in positive logic.
The open-collector outputs require pullup
resistors to perform correctly. They may be
connected to other open-collector outputs to
implement active-low wired-OR or active-high
wired-AND functions. Open-collector devices are
often used to generate higher VOH levels.
1
Y
NC – No internal connection
logic diagram (positive logic)
1A
logic symbol†
1B
1C
1A
1B
1C
1D
2A
2B
2C
2D
1
2
&
1D
6
1Y
4
2A
5
2B
2C
9
10
1Y
8
2Y
2Y
2D
12
13
† This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.
Pin numbers shown are for D, J, and N packages.
Copyright  1986, Texas Instruments Incorporated
5BASIC
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
1
SN54ALS22B, SN74ALS22B
DUAL 4-INPUT POSITIVE-NAND GATES
WITH OPEN-COLLECTOR OUTPUTSWITH OPEN-COLLECTOR OUTPUTS
SDAS005A – MARCH 1984 – REVISED MAY 1986
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Off-state output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Operating free-air temperature range: SN54ALS22B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 125°C
SN74ALS22B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C
recommended operating conditions
SN54ALS22B
SN74ALS22B
MIN
NOM
MAX
MIN
NOM
MAX
4.5
5
5.5
4.5
5
5.5
UNIT
VCC
VIH
Supply voltage
VIL
IOH
Low-level input voltage
0.7
0.8
V
High-level output current
5.5
5.5
mA
IOL
TA
Low-level output current
4
8
mA
70
°C
High-level input voltage
2
Operating free-air temperature
2
– 55
125
V
V
0
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
VIK
VOL
IOH
II
IIH
IIL
ICCH
ICCL
TEST CONDITIONS
SN54ALS22B
TYP† MAX
MIN
SN74ALS22B
TYP† MAX
MIN
VCC = 4.5 V,
VCC = 4.5 V,
II = – 18 mA
IOL = 4 mA
VCC = 4.5 V,
VCC = 4.5 V,
IOL = 8 mA
VOH = 5.5 V
0.1
0.1
mA
VCC = 5.5 V,
VCC = 5.5 V,
VI = 7 V
VI = 2.7 V
0.1
0.1
mA
20
20
µA
VCC = 5.5 V,
VCC = 5.5 V,
VI = 0.4 V
VI = 0 V
– 0.1
– 0.1
mA
0.22
0.4
0.22
0.4
mA
VI = 4.5 V
0.8
1.5
0.8
1.5
mA
VCC = 5.5 V,
† All typical values are at VCC = 5 V, TA = 25°C.
– 1.5
0.25
– 1.5
UNIT
0.4
0.25
0.4
0.35
0.5
V
V
switching characteristics (see Note 1)
PARAMETER
VCC = 5 V,
CL = 50 pF,
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
RL = 2 k Ω,
FROM
TO
RL = 2 kΩ,
(INPUT)
(OUTPUT)
TA = 25°C
’ALS22B
MAX
MIN
MAX
Any
Y
35
23
65
23
45
ns
Any
Y
8
4
32
4
18
ns
TYP
tPLH
tPHL
NOTE 1: Load circuit and voltage waveforms are shown in Section 1.
2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
TA = MIN to MAX
SN54ALS22B SN74ALS22B
MIN
UNIT
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