參數(shù)資料
型號(hào): DM74LS259WM
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 通用總線功能
英文描述: 8-Bit Addressable Latches
中文描述: LS SERIES, LOW LEVEL TRIGGERED D LATCH, TRUE OUTPUT, PDSO16
封裝: 0.300 INCH, MS-013, SOIC-16
文件頁數(shù): 3/6頁
文件大?。?/td> 59K
代理商: DM74LS259WM
3
www.fairchildsemi.com
D
Absolute Maximum Ratings
(Note 1)
Note 1:
The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the “Electrical
Characteristics” table are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
Recommended Operating Conditions
Note 2:
The symbols (
,
) indicate the edge of the clock pulse used for reference:
for rising edge,
for falling edge.
Note 3:
Setup and hold times are with reference to the enable input.
Note 4:
The select-to-enable setup time is the time before the HIGH-to-LOW enable transition that the select must be stable so that the correct latch is
selected and the others not affected.
Note 5:
T
A
=
25
°
C and V
CC
=
5V.
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Note 6:
All typicals are at V
CC
=
5V, T
A
=
25
°
C.
Note 7:
Not more than one output should be shorted at a time, and the duration should not exceed one second.
Note 8:
I
CC
is measured with all inputs at 4.5V, and all outputs OPEN.
Supply Voltage
Input Voltage
Operating Free Air Temperature Range
Storage Temperature Range
7V
7V
0
°
C to
+
70
°
C
65
°
C to
+
150
°
C
Symbol
Parameter
Min
4.75
2
Nom
5
Max
5.25
Units
V
V
V
mA
mA
V
CC
V
IH
V
IL
I
OH
I
OL
t
W
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Pulse Width
(Note 5)
Setup Time
(Note 2)(Note 3)(Note 4)(Note 5) Select
Hold Time
(Note 2)(Note 3)(Note 5)
Free Air Operating Temperature
0.8
0.4
8
Enable
Clear
Data
15
15
15
15
2.5
2.5
0
ns
t
SU
ns
t
H
Data
Select
ns
T
A
70
°
C
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 6)
V
I
V
OH
Input Clamp Voltage
V
CC
=
Min, I
I
=
18 mA
V
CC
=
Min, I
OH
=
Max
V
IL
=
Max, V
IH
=
Min
V
CC
=
Min, I
OL
=
Max
V
IL
=
Max, V
IH
=
Min
I
OL
=
4 mA, V
CC
=
Min
V
CC
=
Max, V
I
=
7V
V
I
=
10V
V
CC
=
Max, V
I
=
2.7V
V
CC
=
Max, V
I
=
0.4V
V
CC
=
Max, V
I
=
0.4V
V
CC
=
Max (Note 7)
V
CC
=
Max (Note 8)
1.5
V
HIGH Level
Output Voltage
LOW Level
2.7
3.4
V
V
OL
0.35
0.5
Output Voltage
V
0.25
0.4
I
I
Input Current @ Max
0.1
mA
Input Voltage
HIGH Level Input Current
LOW Level Input Current
I
IH
I
IL
20
0.4
0.8
100
36
μ
A
mA
Enable
Short Circuit Output Current
Supply Current
I
OS
I
CC
20
mA
mA
22
相關(guān)PDF資料
PDF描述
DM74LS259 8-Bit Addressable Latches(8位可尋址的緩沖器)
DM74LS259M 8-Bit Addressable Latches
DM74LS259N 8-Bit Addressable Latches
DM74LS259MX Addressable D-Type Latch
DM74LS259WMX Addressable D-Type Latch
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