NVRAM NVSRAM Parallel 64K-Bit 5V 28-Pin DIP Module

The CMOS bq4010/Y/LY is a nonvolatile 65,536-bit static RAM organized as 8,192 words by 8 bits. The integral control circuitry and lithium energy source provide reliable nonvolatility coupled with the unlimited write cycles of standard SRAM.The control circuitry constantly monitors the single supply for an out-of-tolerance condition. When VCC falls out of tolerance, the SRAM is unconditionally write-protected to prevent an inadvertent write operation.At this time the integral energy source is switched on to sustain the memory until after VCC returns valid.The bq4010/Y/LY uses extremely low standby current CMOS SRAMs, coupled with small lithium coin cells to provide nonvolatility without long write-cycle times and the write-cycle limitations associated with EEPROM.The bq4010/Y/LY requires no external circuitry and is compatible with the industry-standard 64-Kb SRAM pinout.

Data Retention for at least 10 Years Without Power

Automatic Write-Protection During Power-up/Power-down Cycles

Conventional SRAM Operation, Including Unlimited Write Cycles

Internal Isolation of Battery before Power Application

5-V or 3.3-V Operation

Industry Standard 28-Pin DIP Pinout