Product Summary

The PS4041S is a Phison flash memory controller specially designed for the Secure Digital (SD) Card. It supports 16~512M byte of NAND flash memory and allows the selection of either SD or SPI mode. To store and transfer data securely, the PS4041S controller provides both data write protection and password protection. In addition, it has a built-in SRAM Buffer and a Dual Buffer mode to allow smooth reading and writing.

Parametrics

PS4041S absolute maximum ratings: (1)VDD-VSS, DC Power Supply: -0.3 to +3.3 V; (2)VIN, Input Voltage: VSS-0.3 to VDD+0.3 V; (3)Ta, Operating Temperature: -25 to +85℃; (4)Tst, Storage Temperature: -40 to +85℃.

Features

PS4041S features: (1)Support SD system specification version 1.01, 1.1; (2)Designed for read-only, read/write storage cards: Support NAND type flash: 16~512 MBytes [Include MLC or Binary Flash]; (3)Support SD SPI mode; (4)Block read and block write supported; (5)Erase supported; (6)Write protection supported; (7)Lock card supported; (8)CPRM(Content Protection for Recordable Media) of SD Card supported; (9)Variable clock rate 0 - 50 MHz; (10)High performance flash memory control with dual SRAM buffer mode; (11)Transmission speed: SD-4bit interface Read / Write: 12 MB/sec (Max) / 10 MB/sec (Max); SD-1bit interface Read / Write: 3.1 MB/sec (Max) / 2.9 MB/sec (Max); (12)Voltage range for communication: 2.0 - 3.6V; (13)ECC circuits to protect data communication.

Diagrams

PS4041S block diagram