Utmel Electronic Limited Datasheets for NVRAM

NVRAM memory chips (Non-volatile RAM) is used to store configuration information that can be changed through modem commands. 
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Product Name Notes
IBUTTON MEMORY 1KBit F5
IC NVSRAM 1M SPI 20MHZ 8TSSOP
IC NVSRAM 256K PARALLEL 28EDIP
IC NVSRAM 256KBIT 3.4MHZ 16SOIC
IC NVSRAM 2M PARALLEL 32DIP
IC NVSRAM 4MBIT 25NS 44TSOP
IC NVSRAM 4MBIT 45NS 44TSOP
IC NVSRAM 64K PARALLEL 28EDIP
IC NVSRAM 64K PARALLEL 28SOH
IC NVSRAM 64K SPI 40MHZ 8SOIC
IC NVSRAM 64KBIT 70NS 28SOH
IC NVSRAM 8M PARALLEL 48FBGA
IC, NVSRAM, 256KBIT, 100NS, DIP-28
MAXIM INTEGRATED PRODUCTS DS1245Y-70+ NVSRAM, 1024KBIT, 128KX8, 32EDIP
NVRAM NVSRAM Serial-SPI 1M-Bit 3V 8-Pin DFN EP
STMICROELECTRONICS M48Z18-100PC1 ZEROPOWER SRAM 64K, 48Z18, DIP28