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參數(shù)資料
| 型號： | SN54ABT845 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Octal Bus Interface D-Type Latches With 3-State Outputs(八總線接口D鎖存器(三態(tài)輸出)) |
| 中文描述： | 八路總線接口D類鎖存器與三態(tài)輸出（八總線接口?鎖存器（三態(tài)輸出）） |
| 文件頁數(shù)： | 5/7頁 |
| 文件大?。?/td> | 117K |
| 代理商： | SN54ABT845 |
SN54ABT845, SN74ABT845
OCTAL BUS INTERFACE D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SCBS169 – FEBRUARY 1991–REVISED OCTOBER 1992
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
5
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
VCC = 5 V,
TA = 25
°
C
MIN
SN54ABT845
SN74ABT845
UNIT
MAX
MIN
MAX
MIN
MAX
P l
Pulse duration
CLR low
PRE low
LE high
High
Low
tw
ns
tsu
Setup time data before LE
Setup time, data before LE
↓
ns
th
Hold time, data after LE
↓
ns
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, C
L
= 50 pF (unless otherwise noted) (see Figure 1)
FROM
(INPUT)
TO
VCC = 5 V,
TA = 25
°
C
MIN
SN54ABT845
SN74ABT845
PARAMETER
(OUTPUT)
TYP
MAX
MIN
MAX
MIN
MAX
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
D
Q
ns
LE
Q
ns
PRE
Q
ns
CLR
Q
ns
OE
Q
ns
OE
Q
ns
P
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