DS1230AB
DS1230AB is 256k Nonvolatile SRAM manufactured by Dallas.
FEATURES
- 10 years minimum data retention in the absence of external power
- Data is automatically protected during power loss
- Replaces 32k x 8 volatile static RAM,
EEPROM or Flash memory
- Unlimited write cycles
- Low-power CMOS
- Read and write access times of 70 ns
- Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time
- Full ±10% VCC operating range (DS1230Y)
- Optional ±5% VCC operating range
(DS1230AB)
- Optional industrial temperature range of
-40°C to +85°C, designated IND
- JEDEC standard 28-pin DIP package
- Power Cap Module (PCM) package
- Directly surface-mountable module
- Replaceable snap-on Power Cap provides lithium backup battery
- Standardized pinout for all nonvolatile
SRAM products
- Detachment feature on Power Cap allows easy removal using a regular screwdriver
PIN ASSIGNMENT
A14 A12
A7 A6 A5 A4 A3 A2...
