參數(shù)資料
型號: SN74ALS873BNT3
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, PDIP24
封裝: PLASTIC, DIP-24
文件頁數(shù): 11/17頁
文件大小: 518K
代理商: SN74ALS873BNT3
SN54ALS873B, SN54AS873A, SN74ALS873B, SN74AS873A
DUAL 4BIT DTYPE LATCHES
WITH 3STATE OUTPUTS
SDAS036D APRIL 1982 REVISED AUGUST 1995
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54ALS873B
SN74ALS873B
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
VIK
VCC = 4.5 V,
II = 18 mA
1.2
V
VCC = 4.5 V to 5.5 V,
IOH = 0.4 mA
VCC 2
VOH
VCC = 4.5 V
IOH = 1 mA
2.4
3.3
V
VOH
VCC = 4.5 V
IOH = 2.6 mA
2.4
3.2
V
VOL
VCC = 4.5 V
IOL = 12 mA
0.25
0.4
0.25
0.4
V
VOL
VCC = 4.5 V
IOL = 24 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
0.2
mA
IO
VCC = 5.5 V,
VO = 2.25 V
20
112
30
112
mA
Outputs high
11
21
11
21
ICC
VCC = 5.5 V
Outputs low
16
29
16
29
mA
ICC
VCC = 5.5 V
Outputs disabled
20
31
20
31
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.
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
SN54ALS873B
SN74ALS873B
UNIT
MIN
MAX
MIN
MAX
UNIT
tw
Pulse duration
CLR low
15
ns
tw
Pulse duration
LE high
10
ns
tsu
Setup time, data before LE
10
ns
th
Hold time, data after LE
7
ns
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