The Microchip Technology Inc. 23A256 is a 256 Kbit SPI Serial SRAM designed for low-power applications, operating within a supply voltage range of 1.5V to 1.95V. It features a maximum clock frequency of 20 MHz and supports a memory organization of 32,768 x 8 bits with a 32-byte page size. The device is optimized for low power consumption, with a read current of 3 mA at 1 MHz and a maximum standby current of 4 ¬µA at +85¬8C. It includes a HOLD pin for pausing communication, allowing the host to manage higher priority tasks without interference. The 23A256 is available in various package types, including 8-lead PDIP, SOIC, and TSSOP, and is suitable for industrial and automotive temperature ranges from -40¬8C to +125¬8C.
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.
Additional Features
| Microchip Technology, Inc. | |
|---|---|
| Product Category | Memory Chips |
| Product Number | 23A256 |
| Product Name | 1.5-1.95V 256Kb SPI Serial SRAM |
| Memory Category | SRAM Chip |
| Data Rate | 16 MHz |
| Data Retention | 200 years |
