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參數(shù)資料
| 型號(hào)： | SN54ALS873BJT |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | DUAL 4-BIT D-TYPE LATCHES WITH 3-STATE OUTPUTS |
| 中文描述： | 雙4位D型鎖存器具有三態(tài)輸出 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大?。?/td> | 121K |
| 代理商： | SN54ALS873BJT |
SN54ALS873B, SN54AS873A, SN74ALS873B, SN74AS873A
DUAL 4-BIT D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SDAS036D – APRIL 1982 – REVISED AUGUST 1995
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54ALS873B
MIN
TYP
SN74ALS873B
MIN
TYP
UNIT
MAX
MAX
VIK
VCC = 4.5 V,
VCC = 4.5 V to 5.5 V,
II = –18 mA
IOH = –0.4 mA
IOH = –1 mA
IOH = –2.6 mA
IOL = 12 mA
IOL = 24 mA
VO = 2.7 V
VO = 0.4 V
VI = 7 V
VI = 2.7 V
VI = 0.4 V
VO = 2.25 V
Outputs high
–1.2
–1.2
V
VCC– 2
2.4
VCC– 2
VOH
VCC= 4 5 V
VCC = 4.5 V
3.3
V
2.4
3.2
VOL
VCC= 4 5 V
VCC = 4.5 V
0.25
0.4
0.25
0.4
V
0.35
0.5
IOZH
IOZL
II
IIH
IIL
IO
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
20
20
μ
A
μ
A
mA
μ
A
mA
–20
–20
0.1
0.1
20
20
– 0.2
– 0.2
–20
–112
–30
–112
mA
11
21
11
21
ICC
VCC = 5.5 V
Outputs low
Outputs disabled
16
20
29
31
16
20
29
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
MIN
15
SN74ALS873B
MIN
15
UNIT
MAX
MAX
tw
Pulse duration
CLR low
ns
LE high
10
10
tsu
th
Setup time, data before LE
↓
Hold time, data after LE
↓
10
10
ns
7
7
ns
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