Microchip Technology

The Microchip Technology Inc. 23AA04M are 4 Mbit Serial SRAM devices. The memory is accessed via a Serial Peripheral Interface (SPI) compatible serial bus. Additionally, SDI (Serial Dual Interface) and SQI (Serial Quad Interface) is supported with clock speeds up to 143 MHz. This device supports unlimited reads and writes to the memory array with zero write times. The 23AA04M is available in standard packages including 8-lead SOIC, PDIP and TSSOP.

The Microchip Technology Inc. 23X256 are 256 Kbit Serial SRAM devices. The memory is accessed via a simple Serial Peripheral Interface (SPI) compatible serial bus. The bus signals required are a clock input (SCK) plus separate data in (SI) and data out (SO) lines. Access to the device is controlled through a Chip Select (CS) input. Communication to the device can be paused via the hold pin (HOLD). While the device is paused, transitions on its inputs will be ignored, with the exception of Chip Select, allowing the host to service higher priority interrupts. The 23X256 is available in standard packages including 8-lead PDIP and SOIC, and advanced packaging including 8-lead TSSOP.

The Microchip Technology Inc. 23X640 are 64 Kbit Serial SRAM devices. The memory is accessed via a simple Serial Peripheral Interface (SPI) compatible serial bus. The bus signals required are a clock input (SCK) plus separate data in (SI) and data out (SO) lines. Access to the device is controlled through a Chip Select (CS) input. Communication to the device can be paused via the hold pin (HOLD). While the device is paused, transitions on its inputs will be ignored, with the exception of Chip Select, allowing the host to service higher priority interrupts. The 23X640 is available in standard packages including 8-lead PDIP and SOIC, and advanced packaging including 8-lead TSSOP.

The Microchip Technology Inc. 23A1024/23LC1024 are 1 Mbit Serial SRAM devices. The memory is accessed via a simple Serial Peripheral Interface (SPI) compatible serial bus. The bus signals required are a clock input (SCK) plus separate data in (SI) and data out (SO) lines. Access to the device is controlled through a Chip Select (CS) input. Additionally, SDI (Serial Dual Interface) and SQI (Serial Quad Interface) is supported if your application needs faster data rates. This device also supports unlimited reads and writes to the memory array. The 23A1024/23LC1024 is available in standard packages including 8-lead SOIC, PDIP and 8-lead TSSOP.

The Microchip Technology Inc. 23LCV02M are 2 Mbit Serial SRAM devices with Battery Backup circuitry to maintain memory contents on power loss. The memory is accessed via a Serial Peripheral Interface (SPI) compatible serial bus. Additionally, SDI (Serial Dual Interface) and SQI (Serial Quad Interface) is supported with clock speeds up to 143 MHz. This device supports unlimited reads and writes to the memory array with zero write times. The 23LCV02M is available in standard packages including 14-lead SOIC, PDIP and TSSOP.

The Microchip Technology Inc. 23LCV04M are 4 Mbit Serial SRAM devices with Battery Backup circuitry to maintain memory contents on power loss. The memory is accessed via a Serial Peripheral Interface (SPI) compatible serial bus. Additionally, SDI (Serial Dual Interface) and SQI (Serial Quad Interface) is supported with clock speeds up to 143 MHz. This device supports unlimited reads and writes to the memory array with zero write times. The 23LCV04M is available in standard packages including 14-lead SOIC, PDIP and TSSOP.