Voltage - Supply is 1.71 V ~ 1.89 V - Memory Distributor - DS28EL15Q+U IS61QDB21M36-250M3L IS61QDB22M18-250M3L

Part Number	Manufacturer / Brand	Brife Description	Part Status	Memory Type	Memory Format	Technology	Memory Size	Clock Frequency	Write Cycle Time - Word, Page	Access Time	Memory Interface	Voltage - Supply	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package
DS28EL15Q+U	Maxim Integrated	IC EEPROM 512 1WIRE 6TDFN	Active	Non-Volatile	EEPROM	EEPROM	512b (256 x 2)	-	-	2µs	1-Wire®	1.71 V ~ 1.89 V	-40°C ~ 85°C (TA)	Surface Mount	6-WDFN Exposed Pad	6-TDFN-EP (3x3)
IS61QDB21M36-250M3L	ISSI, Integrated Silicon Solution Inc	IC SRAM 36M PARALLEL 165LFBGA	Discontinued at -	Volatile	SRAM	SRAM - Synchronous, QUAD	36Mb (1M x 36)	250MHz	-	7.5ns	Parallel	1.71 V ~ 1.89 V	0°C ~ 70°C (TA)	Surface Mount	165-LBGA	165-LFBGA (15x17)
IS61QDB22M18-250M3L	ISSI, Integrated Silicon Solution Inc	IC SRAM 36M PARALLEL 165LFBGA	Discontinued at -	Volatile	SRAM	SRAM - Synchronous, QUAD	36Mb (2M x 18)	250MHz	-	7.5ns	Parallel	1.71 V ~ 1.89 V	0°C ~ 70°C (TA)	Surface Mount	165-LBGA	165-LFBGA (15x17)