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BQ3285 Clock Datasheet PDFReal-Time Clock Real-Time Clock |
　
　
　
| Part Number | BQ3285 |
|---|---|
| Description | Real-Time Clock |
| Feature | bq3285
Real-Time Clock (RTC)
Features
 ® Direct clock/calendar replacement for IBM® AT-compatible computers and othe r applications
® Functionally compatib le with the DS1285
- Closely matches MC 146818A
pin configuration
® 114 bytes of general nonvolatile storage
® 160ns cycle time allows fast bus operation
 ® Selectable Intel or Motorola bus timi ng
® Less than 0. 5µA load under batte ry operation ® 14 bytes for clock/cale ndar and control ® BCD or binary forma t for clock and calendar data ® Calen dar in day of the week, day of the mont h, months, and years, with automatic le ap-year adjustment ® Time . |
| Manufacture | UNITRODE |
| Datasheet |
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| Part Number | BQ3285L |
|---|---|
| Description | Real-Time Clock |
| Feature | bq3285E/L
Real-Time Clock (RTC)
Featur es
® Direct clock/calendar replacement for IBM® AT-compatible computers and other applications
® Functionally comp atible with the DS1285
- Closely matche s MC146818A
pin configuration
® 2. 7– 3. 6V operation (bq3285L); 4. 5–5. 5V op eration (bq3285E) ® 242 bytes of gener al nonvolatile storage ® 32. 768kHz out put for power management ® System wake -up capability— alarm interrupt outpu t active in battery-backup mode ® Less than 0. 5µA load under battery operati on ® Selectable Intel or Motorola bus timing ® 14 bytes for clock/calendar a nd control ® BCD or binary for . |
| Manufacture | UNITRODE |
| Datasheet |
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| Part Number | BQ3285E |
|---|---|
| Description | Real-Time Clock |
| Feature | bq3285E/L
Real-Time Clock (RTC)
Featur es
® Direct clock/calendar replacement for IBM® AT-compatible computers and other applications
® Functionally comp atible with the DS1285
- Closely matche s MC146818A
pin configuration
® 2. 7– 3. 6V operation (bq3285L); 4. 5–5. 5V op eration (bq3285E) ® 242 bytes of gener al nonvolatile storage ® 32. 768kHz out put for power management ® System wake -up capability— alarm interrupt outpu t active in battery-backup mode ® Less than 0. 5µA load under battery operati on ® Selectable Intel or Motorola bus timing ® 14 bytes for clock/calendar a nd control ® BCD or binary for . |
| Manufacture | UNITRODE |
| Datasheet |
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