DS1350AB

Features:

10 years minimum data retention in theabsence of external power
Data is automatically protected during power loss
Power supply monitor resets processor whenVCC power loss occurs and holds processor in reset during VCC ramp-up
Battery monitor checks remaining capacity daily
Read and write access times as fast as 70 ns

Unlimited write cycle endurance
Typical standby current 50 µA
Upgrade for 512k x 8 SRAM, EEPROM or Flash
Lithium battery is electrically disconnected toretain freshness until power is applied for the first time
Full ±10% VCC operating range (DS1350Y)or optional ±5% VCC operating range (DS1350AB)
Optional industrial temperature range of -40°C to +85°C, designated IND
New PowerCap Module (PCM) package
   -  Directly surface-mountable module
   -  Replaceable snap-on PowerCap provides lithium backup battery
   -  Standardized pinout for all nonvolatile SRAM products
   -  Detachment feature on PowerCap allows easy removal using a regular screwdriver

Pinout




Specifications

Voltage on Any Pin Relative to Ground  -0.3V to +7.0V
Operating Temperature  0°C to 70°C, -40°C to +85°C for IND parts
Storage Temperature  -40°C to +70°C, -40°C to +85°C for IND parts
Soldering Temperature  260°C for 10 seconds


Description

The DS1350 4096k Nonvolatile SRAMs are 4,194,304-bit, fully static, nonvolatile SRAMs organized as524,288 words by 8 bits. Each NV SRAM DS1350 has a self-contained lithium energy source and control circuitrywhich constantly monitors VCC for an out-of-tolerance condition. When such a condition occurs, thelithium energy source is automatically switched on and write protection is unconditionally enabled toprevent data corruption. Additionally, the DS1350 devices have dedicated circuitry for monitoring thestatus of VCC and the status of the internal lithium battery. DS1350 devices in the PowerCap Modulepackage are directly surface mountable and are normally paired with a DS9034PC PowerCap to form acomplete Nonvolatile SRAM module. The devices can be used in place of 512k x 8 SRAM, , EEPROM orFlash components.