DS1350AB:4096k Nonvolatile SRAM with Battery Monitor

The DS1350 4096k Nonvolatile (NV) SRAMs are 4,194,304 bit, fully static, NV SRAMs organized as 524,288 words by 8 bits. Each NV SRAM has a self-contained lithium energy source and control circuitry, which constantly monitors VCC for an out-of-tolerance condition. When such a condition occurs, the lithium energy source is automatically switched on and write protection is unconditionally enabled to prevent data corruption. Additionally, the DS1350 devices have dedicated circuitry for monitoring the status of VCC and the status of the internal lithium battery. DS1350 devices in the PowerCap Module package are directly surface mountable and are normally paired with a DS9034PC PowerCap to form a complete NV SRAM module. The devices can be used in place of 512k x 8 SRAM, EEPROM or Flash components.

Key Features
  • 10 years minimum data retention in the absence of external power
  • Data is automatically protected during power loss
  • Power supply monitor resets processor when VCC power loss occurs and holds processor in reset during VCC ramp-up
  • Battery monitor checks remaining capacity daily
  • Read and write access times of 70ns
  • Unlimited write cycle endurance
  • Typical standby current 50µA
  • Upgrade for 512k x 8 SRAM, EEPROM or Flash
  • Lithium battery is electrically disconnected to retain 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
  • PowerCap Module (PCM) package
    • Directly surface-mountable module
    • Replaceable snap-on PowerCap provides lithium backup battery
    • Standardized pinout for all NV SRAM products
    • Detachment feature on PowerCap allows easy removal using a regular screwdriver
DS1350AB, DS1350Y: Pin Assignment
DS1350AB, DS1350Y: Pin Assignment
titleDownload file
DS1350AB-DS1350Y Data SheetDS1350AB-DS1350Y.pdf
Part NumberMemory TypeMemory SizeBus TypeVSUPPLY
minmaxSee Notes
DS1350ABNV SRAM512K x 8Parallel4.755.25PCAP/34$58.30 @1k
DS1350Y4.55.5PCAP/34$59.20 @1k
Ordering Information
Part NumberNotesStatusRecommended ReplacementPackageTempRoHS
DS1350ABP-1005% Tolerance, 100nsNo Longer AvailableDS1350ABP-70+PCAP,;34 pin;596.9 mm²0°C to +70°CSee data sheet
DS1350ABP-100+ActivePCAP,;34 pin;596.9 mm²0°C to +70°CLead Free
DS1350ABP-705% Tolerance, 70nsNo Longer AvailableDS1350ABP-70+PCAP,;34 pin;596.9 mm²0°C to +70°CSee data sheet
DS1350ABP-70+ActivePCAP,;34 pin;596.9 mm²0°C to +70°CLead Free
DS1350ABP-70IND5% Tolerance, 70nsNo Longer AvailableDS1350ABP-70IND+PCAP,;34 pin;596.9 mm²-40°C to +85°CSee data sheet
DS1350ABP-70IND+ActivePCAP,;34 pin;596.9 mm²-40°C to +85°CLead Free
DS1350AB-DS1350Y.pdf DS1350Y
Timing Considerations When Using NVSRAM DS1350Y
Battery Monitoring in NV SRAM Modules DS1350Y
NV SRAM Frequently Asked Questions DS1350Y
DS1350AB-DS1350Y.pdf DS1350Y