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參數(shù)資料
| 型號： | SNJ54ALS1244AJ |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | ALS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, CDIP20 |
| 封裝： | 0.300 INCH, CERAMIC, DIP-20 |
| 文件頁數(shù)： | 9/15頁 |
| 文件大?。?/td> | 559K |
| 代理商： | SNJ54ALS1244AJ |
SN54ALS1244A, SN74ALS1244A
OCTAL BUFFERS AND DRIVERS
WITH 3STATE OUTPUTS
SDAS186B JULY 1990 REVISED JANUARY 1995
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
recommended operating conditions
SN54ALS1244A
SN74ALS1244A
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
IOH
High-level output current
12
15
mA
IOL
Low-level output current
8
16
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
SN54ALS1244A
SN74ALS1244A
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
VIK
VCC = 4.5 V,
II = 18 mA
1.5
V
VCC = 4.5 V to 5.5 V,
IOH = 0.4 mA
VCC 2
VOH
IOH = 3 mA
2.4
3.2
2.4
3.2
V
VOH
VCC = 4.5 V
IOH = 12 mA
2
V
VCC = 4.5 V
IOH = 15 mA
2
VOL
VCC = 4.5 V
IOL = 8 mA
0.25
0.4
0.25
0.4
V
VOL
VCC = 4.5 V
IOL = 16 mA
0.35
0.5
V
IOZH
VCC = 5.5 V,
VO = 2.7 V
20
A
IOZL
VCC = 5.5 V,
VO = 0.4 V
20
A
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
IO
VCC = 5.5 V,
VO = 2.25 V
20
112
30
112
mA
Outputs high
6
15
6
11
ICC
VCC = 5.5 V
Outputs low
10
20
10
17
mA
ICC
VCC = 5.5 V
Outputs disabled
11
25
11
20
mA
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.
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