參數(shù)資料
型號: BQ3287MT-K
廠商: TEXAS INSTRUMENTS INC
元件分類: XO, clock
英文描述: 1 TIMER(S), REAL TIME CLOCK, DMA24
封裝: MODULE, DIP-24
文件頁數(shù): 3/7頁
文件大?。?/td> 105K
代理商: BQ3287MT-K
3
Sept. 1996 D
Power-Down/Power-Up Timing
(TA= TOPR)
Symbol
Parameter
Minimum
Typical
Maximum
Unit
Conditions
t
F
V
CC
slew from 4.5V to 0V
300
-
-
μ
s
t
R
V
CC
slew from 0V to 4.5V
100
-
-
μ
s
t
CSR
CS at V
IH
after power-up
20
-
200
ms
Internal write-protection
period after V
CC
passes V
PFD
on power-up.
t
DR
Data-retention and time-
keeping time
10
-
-
years
T
A
= 25°C.
Note:
Clock accuracy is better than
±
1 minute per month at 25°C for the period of t
DR
.
Caution:
Negative undershoots below the absolute maximum rating of -0.3V in battery-backup mode
may affect data integrity.
Power-Down/Power-Up Timing
bq3287/bq3287A
相關(guān)PDF資料
PDF描述
BQ3385P 1 TIMER(S), REAL TIME CLOCK, PDIP24
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