參數(shù)資料
型號(hào)： SNJ54ALS38BJ
廠商： TEXAS INSTRUMENTS INC
元件分類： 門電路
英文描述： ALS SERIES, QUAD 2-INPUT NAND GATE, CDIP14
封裝： 0.300 INCH, CERAMIC, DIP-14
文件頁(yè)數(shù)： 9/16頁(yè)
文件大?。?/td> 685K
代理商： SNJ54ALS38BJ
SN54ALS38B, SN74ALS38B
QUADRUPLE 2-INPUT POSITIVE-NAND BUFFERS
WITH OPEN-COLLECTOR OUTPUTS
SDAS196B – APRIL 1982 – REVISED DECEMBER 1994
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, VI
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA: SN54ALS38B
– 55
°C to 125°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ALS38B
0
°C to 70°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.
recommended operating conditions
SN54ALS38B
SN74ALS38B
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
UNIT
VCC
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.7
0.8
V
VOH
High-level output voltage
5.5
V
IOL
Low-level output current
12
24
mA
TA
Operating free-air temperature
–55
125
0
70
°C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54ALS38B
SN74ALS38B
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
VIK
VCC = 4.5 V,
II = –18 mA
–1.5
V
VOL
VCC =4 5V
IOL = 12 mA
0.25
0.4
0.25
0.4
V
VOL
VCC = 4.5 V
IOL = 24 mA
0.35
0.5
V
II
VCC = 5.5 V,
VI = 7 V
0.1
mA
IIH
VCC = 5.5 V,
VI = 2.7 V
20
A
IIL
VCC = 5.5 V,
VI = 0.4 V
– 0.1
mA
IOH
VCC = 4.5 V,
VOH = 5.5 V
0.1
mA
ICCH
VCC = 5.5 V,
VI = 0
0.86
1.6
0.86
1.6
mA
ICCL
VCC = 5.5 V,
VI = 4.5 V
4.8
7.8
4.8
7.8
mA
All typical values are at VCC = 5 V, TA = 25°C.
switching characteristics (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
RL = 500 ,
TA = MIN to MAX§
UNIT
(INPUT)
(OUTPUT)
SN54ALS38B
SN74ALS38B
MIN
MAX
MIN
MAX
tPLH
AorB
Y
7
59
10
33
ns
tPHL
A or B
Y
2
20
1
12
ns
§ For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
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