參數(shù)資料
型號(hào): CD74HCT138MTE4
廠商: Texas Instruments, Inc.
元件分類: 溫度/濕度傳感器
英文描述: LM77 9-Bit + Sign Digital Temperature Sensor and Thermal Window Comparator with Two-Wire Interface; Package: MINI SOIC; No of Pins: 8
中文描述: 高速CMOS邏輯3 -至8線譯碼器/多路解復(fù)用器反相和同相
文件頁數(shù): 4/14頁
文件大?。?/td> 352K
代理商: CD74HCT138MTE4
4
HCT TYPES
High Level Input
Voltage
V
IH
-
-
4.5 to
5.5
2
-
-
2
-
2
-
V
Low Level Input
Voltage
V
IL
-
-
4.5 to
5.5
-
-
0.8
-
0.8
-
0.8
V
High Level Output
Voltage
CMOS Loads
V
OH
V
IH
or V
IL
-0.02
4.5
4.4
-
-
4.4
-
4.4
-
V
High Level Output
Voltage
TTL Loads
-4
4.5
3.98
-
-
3.84
-
3.7
-
V
Low Level Output
Voltage
CMOS Loads
V
OL
V
IH
or V
IL
0.02
4.5
-
-
0.1
-
0.1
-
0.1
V
Low Level Output
Voltage
TTL Loads
4
4.5
-
-
0.26
-
0.33
-
0.4
V
Input Leakage
Current
I
I
V
CC
and
GND
0
5.5
-
±
0.1
-
±
1
-
±
1
μ
A
Quiescent Device
Current
I
CC
V
CC
or
GND
0
5.5
-
-
8
-
80
-
160
μ
A
Additional Quiescent
Device Current Per
Input Pin: 1 Unit Load
I
CC
(Note 2)
V
CC
-2.1
-
4.5 to
5.5
-
100
360
-
450
-
490
μ
A
NOTE:
2. For dual-supply systems, theoretical worst case (V
I
= 2.4V, V
CC
= 5.5V) specification is 1.8mA.
DC Electrical Specifications
(Continued)
PARAMETER
SYMBOL
TEST
CONDITIONS
V
CC
(V)
25
o
C
-40
o
C TO 85
o
C -55
o
C TO 125
o
C
UNITS
V
I
(V)
I
O
(mA)
MIN
TYP
MAX
MIN
MAX
MIN
MAX
HCT Input Loading Table
INPUT
UNIT LOADS
A0-A2
1.5
E1, E2
1.25
E3
1
NOTE: Unit Load is
I
CC
limit specified in DC Electrical Table, e.g.,
360
μ
A max at 25
o
C.
Switching Specifications
Input t
r
, t
f
= 6ns
PARAMETER
SYMBOL
TEST
CONDITIONS
V
CC
(V)
25
o
C
-40
o
C TO
85
o
C
-55
o
C TO 125
o
C
UNITS
MIN
TYP
MAX
MIN
MAX
MIN
MAX
HC TYPES
Propagation Delay
t
PLH,
t
PHL
C
L
= 50pF
2
-
-
150
-
190
-
225
ns
Address to Output
4.5
-
-
30
-
38
-
45
ns
C
L
= 15pF
5
-
13
-
-
-
-
-
ns
C
L
= 50pF
6
-
-
26
-
33
-
38
ns
CD54/74HC138, CD54/74HCT138, CD54/74HC238, CD54/74HCT238
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