Main markets: Hungary, Indonesia, United States, India, South Korea
Brand Name
Original Authentic Product
Manufacturer Part Number
23K256-I/SN
Place of Origin
Guangdong, China
Description
The 23K256 series is a 256Kbit (32K x 8-bit) serial SRAM memory family featuring high-speed SPI interface up to 20MHz. Built on low-power CMOS technology with wide voltage range (2.7V-3.6V) and extended temperature options, this SRAM series provides reliable external memory expansion for microcontrollers with limited RAM resources. Available in industrial (-40°C to +85°C) and automotive (-40°C to +125°C) temperature grades, the series is ideal for data buffering, temporary storage, and high-speed logging applications in IoT devices, industrial control systems, and automotive electronics.
Function
High-Speed Serial Data Storage 256Kbit (32K x 8-bit) static RAM with unlimited read/write cycles 20MHz SPI clock frequency for rapid data transfer (25ns access time) Sequential read/write capability across entire memory array without address increment limitations, Low-Power Operation Modes Active mode: 3mA typical at 1MHz operation Standby mode: 4uA maximum current (85°C) for battery-powered applications Automatic power-down when /CS pin is high (chip deselected), Flexible Data Interface Standard SPI bus compatibility (Mode 0,0 and 1,1) Separate SI (data input) and SO (data output) lines for full-duplex communication /HOLD pin allows pausing communication mid-transfer without losing data, Efficient Write Operations 32-byte page write mode for burst data storage Self-timed write cycle (no wait state required) /WP (Write Protect) pin prevents accidental data modification (optional), Robust Environmental Performance Industrial grade: -40°C to +85°C operation Automotive grade: -40°C to +125°C (E suffix models) AEC-Q100 qualified for automotive applications MSL 1 moisture sensitivity rating (unlimited floor life), Hardware Integration Features SOIC-8, TSSOP-8, and PDIP-8 package options 2.7V to 3.6V wide supply voltage range Direct interface with MCU SPI ports (STM32, PIC, AVR, Arduino) No external refresh circuitry required (true static RAM), Data Integrity & Reliability Unlimited data retention while powered (SRAM technology) High immunity to soft errors JEDEC standard compliance 100% electrical testing at factory, Application-Specific Capabilities Buffer overflow protection for data logging Real-time data capture in high-speed sampling systems Code shadowing for firmware execution Configuration storage for IoT devices
Application
MCU Memory Expansion,Automotive Data Buffering
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