(China (Mainland))
Product Summary
The DS1284 is a Watchdog Timekeeper Chip which is a self-contained real-time clock, alarm, watchdog timer, and interval timer in a 28-pin JEDEC DIP package or a 28-pin PLCC surface mount package. An external crystal and battery are the only components required to maintain time-of-day and memory status in the absence of power.
Features
DS1284 features: (1)Keeps track of hundredths of seconds, seconds, minutes, hours, days, date of the month, months, and years; valid leap year compensation up to 2100; (2)Watchdog timer restarts an out-of-control processor; (3)Alarm function schedules real-time related activities; (4)Programmable interrupts and square wave outputs maintain 28-pin JEDEC footprint; (5)All registers are individually addressable via the address and data bus; (6)Accuracy is better than ±2 minute/month at 25℃; (7)50 bytes of user NV RAM; (8)Optional 28-pin PLCC surface mount package; (9)Low-power CMOS circuitry is maintained on less than 0.5 mA when power is supplied from battery input; (10)Optional industrial temperature range available on 28-pin PLCC (-40℃ to +85℃).
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
Quantity | ||||
|---|---|---|---|---|---|---|---|---|---|---|
 |
 DS1284 |
Maxim Integrated Products |
Real Time Clock |
Data Sheet |
Negotiable |
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 |
DS1284N |
Maxim Integrated Products |
Real Time Clock |
Data Sheet |
Negotiable |
|
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 |
DS1284Q |
Maxim Integrated Products |
Real Time Clock |
Data Sheet |
Negotiable |
|
||||
|
DS1284Q/T&R |
Maxim Integrated Products |
Real Time Clock |
Data Sheet |
Negotiable |
|
||||
|
DS1284Q/T&R/C03 |
Maxim Integrated Products |
Real Time Clock |
Data Sheet |
Negotiable |
|
||||
|
DS1284Q/T&R/C07 |
Maxim Integrated Products |
Real Time Clock |
Data Sheet |
Negotiable |
|
||||
|
DS1284Q+ |
Maxim Integrated Products |
Real Time Clock |
Data Sheet |
Negotiable |
|
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|
DS1284Q+T&R |
Maxim Integrated Products |
Real Time Clock |
Data Sheet |
Negotiable |
|
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