CY14E256LA-SZ45XQ

CY14E256LA-SZ45XQ is a 256Kbit (32K × 8) electrically erasable and programmable read-only memory (EEPROM) designed and manufactured by Cypress Semiconductor. It is suitable for systems that require small amount of non-volatile memory for applications such as system parameters, calibration data, modem settings and security codes.

CY14E256LA-SZ45XQ belongs to Cypress\'s Async family of serial EEPROMs, a member to the Serial EEPROM portfolio of Cypress’ Programmable System on Chip (PSoC®) family. The CY14E series can be used in many applications from consumer, form-factor memory products, automotive and industrial applications.

The CY14E256LA-SZ45XQ offers:

• Low voltage operation (1.8V to 5.5V)
• High speed read operation
• Hardware write protection
• JEDEC-compliant (pinout and command)

The CY14E256LA-SZ45XQ utilizes Cypress’ proprietary lossless write algorithm which allows for high speed write to the device combined with meeting the requirements of low noise, low power and low-voltage operation. It has a throughput of 80Kbits/s (typical @5V), with a 6MHz clock operating in fast write mode.

The CY14E256LA-SZ45XQ is built on advanced CMOS process, 0.18µm EEPROM cell process, providing better write endurance, low Vcc sensitivity and self-healing capabilities. It can survive up to 100K cycles of programming and write endurance and up to 10 years of data retention.

The architecture of the CY14E256LA-SZ45XQ consists of a central control unit (Master) and a peripheral loop (Slave). The Master has two main functions: monitoring the communications between the host controller and the device and controlling the Write Timing Sequencer (WTS). The WTS is responsible for controlling the write signals in order to program data into the memory array. The communication system consists of a bidirectional serial bus and two chip-select signals. A high-speed read operation is possible when the two chip-select signals are both enabled. In addition, the device offers a built-in hardware write-protect function.

For reliable applications, Cypress recommends the use of their Quality and Reliability Testing (Q&R) procedures. Such tests include high temperature storage, ESD, soft failures, and more, in order to guarantee robust device performance.

The CY14E256LA-SZ45XQ is an ideal choice for a broad range of applications as it is designed to handle high-speed, high-reliability, low-voltage programming. It is suitable for storage applications such as system parameters, calibration data, modem settings, and security codes. Its wide operating temperature range and built-in hardware write-protect make it a suitable choice for industrial applications.