Datasheet Details
| Part number | FM3808 |
|---|---|
| Manufacturer | Ramtron |
| File Size | 189.42 KB |
| Description | 256Kb Bytewide FRAM |
| Datasheet |
 FM3808 Datasheet
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General Description
The FM3808 combines a 256Kb FRAM array with a real-time clock and a system supervisor function.
An external 32.768 kHz crystal drives the timekeeping function.
either a capacKey Features
- 256K bit Ferroelectric Nonvolatile RAM.
- Organized as 32,752 x 8 bits.
- High Endurance 100 Billion (1011) Read/Writes.
- 10 year Data Retention.
- NoDelay™ Writes.
- 70 ns Access Time/ 130 ns Cycle Time.
- Built-in Low VDD Protection Real-Time Clock/Calendar Function.
- Clock Registers in Top 16 bytes of Address Space.
- Backup Power from External Capacitor or Battery.
- Tracks Seconds through Centuries in BCD Format.
- Trac.