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BQ4285S- Datasheet(PDF) 21 Page - Texas Instruments

Part # BQ4285S-
Description  Real-Time Clock RTC With NVRAM Control
PDF  27 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

BQ4285S- Datasheet(HTML) 21 Page - Texas Instruments

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bq4285
Data Sheet Revision History
Change
No.
Page No.
Description
Natur of Change
1
3
Address strobe input
Clarification
1
12
Backup cell voltage VBC
Was 2.0 min; is 2.5 min
1
13
Power-fail detect voltage VPFD
Was 4.1 min, 4.25 max; is 4.0 min, 4.35 max
1
13
Chip enable input current
Additional specifiction
2
3, 13
Crystal type Daiwas DT-26 (not DT-26S)
Clarification
3
1, 20, 22
Package option change
PLCC last time buy
4
1, 2, 3, 13, 16,
19, 21, 23
Package option removal
PLCC Last Time Buy Complete
Note:
Change 1 = Nov. 1992 B changes from June 1991 A.
Change 2 = Nov. 1993 C changes from Nov. 1992 B
Change 3 = Jan. 1999 D changes from Nov. 1993 C
Change 4 = May 2004 (SLUS002A) changes from Jan. 1999 D
23



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