參數(shù)資料
型號(hào): SN74ALS137ADR
廠商: Texas Instruments, Inc.
英文描述: 3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS WITH ADDRESS LATCHES
中文描述: 3線至8線解碼器/解復(fù)用器與地址鎖存
文件頁數(shù): 5/15頁
文件大?。?/td> 518K
代理商: SN74ALS137ADR
SN54ALS137A, SN74ALS137A, SN74AS137
3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS
WITH ADDRESS LATCHES
SDAS203C – APRIL 1982 – REVISED JANUARY 1995
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN74AS137
MIN
TYP
UNIT
MAX
VIK
VOH
VOL
II
IIH
IIL
IO
ICC
VCC = 4.5 V,
VCC = 4.5 V to 5.5 V,
VCC = 4.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V
II = –18 mA
IOH = –2 mA
IOL = 20 mA
VI = 7 V
VI = 2.7 V
VI = 0.4 V
VO = 2.25 V
–1.2
V
VCC–2
V
0.35
0.5
V
0.1
mA
μ
A
mA
20
–1
–30
– 112
mA
15
24
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.
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§
SN74AS137
MIN
2
UNIT
MAX
12.5
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
A B C
A, B, C
Y
ns
2
12.5
G2
Y
2
8
ns
2
8.5
G1
Y
2
10
ns
2
9
LE
Y
3
3
13.5
14
ns
§For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
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