參數(shù)資料
型號(hào)： 74FCT162841CTPVCT
廠商： Texas Instruments, Inc.
元件分類： 通用總線功能
英文描述： 20-Bit Latches
中文描述： 20位鎖存
文件頁(yè)數(shù)： 2/6頁(yè)
文件大小： 60K
代理商： 74FCT162841CTPVCT
CY74FCT16841T
CY74FCT162841T
2
Maximum Ratings
[3, 4]
(Above which the useful life may be impaired. For user
guidelines, not tested.)
Storage Temperature
......................................
55
°
C to +125
°
C
Ambient Temperature with
Power Applied
..................................................
55
°
C to +125
°
C
DC Input Voltage
.................................................
0.5V to +7.0V
DC Output Voltage
..............................................
0.5V to +7.0V
DC Output Current
(Maximum Sink Current/Pin)
...........................
60 to +120 mA
Power Dissipation..........................................................1.0W
Static Discharge Voltage............................................>2001V
(per MIL-STD-883, Method 3015)
Pin Description
Name
Description
D
LE
OE
O
Data Inputs
Latch Enable Input (Active HIGH)
Output Enable Input (Active LOW)
Three-State Outputs
Function Table
[1]
Inputs
LE
H
H
L
X
Outputs
Q
H
L
Q
[2]
Z
D
H
L
X
X
OE
L
L
L
H
Operating Range
Range
Ambient
Temperature
V
CC
Industrial
40
°
C to +85
°
C
5V
±
10%
Electrical Characteristics
Over the Operating Range
Parameter
V
IH
V
IL
V
H
V
IK
I
IH
I
IL
I
OZH
Description
Test Conditions
Min.
2.0
Typ.
[5]
Max.
Unit
V
V
mV
V
μ
A
μ
A
μ
A
Input HIGH Voltage
Input LOW Voltage
Input Hysteresis
[6]
Input Clamp Diode Voltage
Input HIGH Current
Input LOW Current
High Impedance Output
Current (Three-State Output pins)
High Impedance Output
Current (Three-State Output pins)
Short Circuit Current
[7]
Output Drive Current
[7]
Power-Off Disable
Logic HIGH Level
Logic LOW Level
0.8
100
0.7
V
CC
=Min., I
IN
=
18 mA
V
CC
=Max., V
I
=V
CC
V
CC
=Max., V
I
=GND
V
CC
=Max., V
OUT
=2.7V
1.2
±
1
±
1
±
1
I
OZL
V
CC
=Max., V
OUT
=0.5V
±
1
μ
A
I
OS
I
O
I
OFF
Notes:
1.
2.
3.
V
CC
=Max., V
OUT
=GND
V
CC
=Max., V
OUT
=2.5V
V
CC
=0V, V
OUT
≤
4.5V
[8]
80
50
140
200
180
±
1
mA
mA
μ
A
H = HIGH Voltage Level. L = LOW Voltage Level. X = Don’t Care. Z = HIGH Impedance.
Output level before LE HIGH-to-LOW Transition.
Operation beyond the limits set forth may impair the useful life of the device. Unless otherwise noted, these limits are over the operating free-air temperature
range.
Unused inputs must always be connected to an appropriate logic voltage level, preferably either V
CC
or ground.
Typical values are at V
= 5.0V, T
= +25C ambient.
This parameter is specified but not tested.
Not more than one output should be shorted at a time. Duration of short should not exceed one second. The use of high-speed test apparatus and/or sample
and hold techniques are preferable in order to minimize internal chip heating and more accurately reflect operational values. Otherwise prolonged shorting of
a high output may raise the chip temperature well above normal and thereby cause invalid readings in other parametric tests. In any sequence of parameter
tests, I
tests should be performed last.
Tested at +25C.
4.
5.
6.
7.
8.
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