SRAM Datasheet(PDF) - 23A256_10 - Microchip Technology

Manufacturer	Part #	Datasheet	Description
Microchip Technology	23A256	563Kb/28P	256K SPI Bus Low-Power Serial SRAM 2010
	23A256	609Kb/28P	256K SPI Bus Low-Power Serial SRAM 08/02/11
	23A640	608Kb/28P	64K SPI Bus Low-Power Serial SRAM 08/02/11
	23A256	368Kb/26P	256K SPI Bus Low-Power Serial SRAM 2010
	23A640	563Kb/28P	64K SPI Bus Low-Power Serial SRAM 2010
	23A640	368Kb/26P	64K SPI Bus Low-Power Serial SRAM 2009
	23A640	611Kb/28P	64-Kbit SPI Bus Low-Power Serial SRAM Revision F 07/2022
	23A256	412Kb/27P	256-Kbit SPI Bus Low-Power Serial SRAM Revision G (04/2022)
	23A512	728Kb/32P	512Kbit SPI Serial SRAM with SDI and SQI Interface 2012
	23A1024	427Kb/32P	1Mbit SPI Serial SRAM with SDI and SQI Interface 03/25/14
	23A1024	598Kb/32P	1Mbit SPI Serial SRAM with SDI and SQI Interface 2011-2012
	23LC1024-I	598Kb/32P	1Mbit SPI Serial SRAM with SDI and SQI Interface 11/29/11
	MCP7940M-I	1,006Kb/38P	Low-Cost I2C??Real-Time Clock/Calendar with SRAM 11/29/11
	MCP7940M	1,006Kb/38P	Low-Cost I2C??Real-Time Clock/Calendar with SRAM 11/29/11
	23A512	643Kb/32P	512Kbit SPI Serial SRAM with SDI and SQI Interface 10/28/13
	MCP7940N	727Kb/58P	Battery-Backed I2C Real-Time Clock/Calendar with SRAM 09/14/21
	23A1024	663Kb/33P	1-Mbit SPI Serial SRAM with SDI and SQI Interface Revision D July 2022
	23A512	428Kb/32P	512-Kbit SPI Serial SRAM with SDI and SQI Interface Revision C (May 2022)
	MCP79400	1Mb/42P	I2C Real-Time Clock/Calendar with SRAM, Unique IDand Battery Switchover 11/29/11
	23LCV512	700Kb/30P	512 Kbit SPI Serial SRAM with Battery Backup and SDI Interface 2012

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