RS Components, Ltd. Datasheets for NVRAM

NVRAM memory chips (Non-volatile RAM) is used to store configuration information that can be changed through modem commands. 
NVRAM: Learn more

Product Name Notes
16Kbit 2Kx8 TIMEKEEPER SRAM 5V PCDIP24
Non-volatile RAM,M48T02-150PC1 2kx8bit
Non-volatile RAM,M48T02-70PC1 2kx8bit
Non-volatile RAM,M48T08-100PC1 8kx8bit
Non-volatile RAM,M48T08-150PC1 8kx8bit
Non-volatile RAM,M48Z08-100PC1 8kx8bit
Nonvolatile RAM,M48T35-70PC1 32kx8bit
NVRAM Parallel, 64K-Bit, 5V, PCDIP28
STMicroelectronics, M48Z12-150PC1
STMicroelectronics, M48Z35-70PC1
Zeropower SRAM,16Kb,PDIP24,M48 Z02-70PC1