参数资料
型号: SN54AS873FK
厂商: TEXAS INSTRUMENTS INC
元件分类: 总线收发器
英文描述: AS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, CQCC28
封装: CERAMIC, LCC-28
文件页数: 5/8页
文件大小: 121K
代理商: SN54AS873FK
SN54ALS873B, SN54AS873, SN74ALS873B, SN74AS873A
DUAL 4-BIT D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SDAS036C – APRIL 1982 – REVISED SEPTEMBER 1994
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54AS873
SN74AS873A
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 = – 2 mA
VCC –2
VOH
VCC =4 5V
IOH = – 12 mA
2.4
3.2
V
VCC = 4.5 V
IOH = – 15 mA
2.4
3.3
VOL
VCC =4 5V
IOL = 32 mA
0.25
0.5
V
VOL
VCC = 4.5 V
IOL = 48 mA
0.35
0.5
V
IOZH
VCC = 5.5 V,
VO = 2.7 V
50
A
IOZL
VCC = 5.5 V,
VO = 0.4 V
–50
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
– 0.5
mA
IO
VCC = 5.5 V,
VO = 2.25 V
–30
–112
–30
–112
mA
Outputs high
68
110
68
110
ICC
VCC = 5.5 V
Outputs low
67
109
67
109
mA
Outputs disabled
80
129
80
129
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)
SN54AS873
SN74AS873A
UNIT
MIN
MAX
MIN
MAX
UNIT
t *
Pulse duration
CLR low
5
ns
tw*
Pulse duration
LE high
6
5
ns
tsu*
Setup time, data before LE
2
ns
th*
Hold time, data after LE
4.5
ns
* On products compliant to MIL-STD-883, Class B, these parameters are based on characterization data but are not production tested.
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