HY27UF

The HYNIX HY27UF series is a 128Mx8bit with spare 4Mx8 bit capacity. The device is offered in 1.8V Vcc Power Supply and in 3.3V Vcc Power Supply. Its NAND cell provides the most cost-effective solution for the solid state mass storage market. The memory is divided into blocks that can be erased independently so it is possible to preserve valid data while old data is erased.

The device HY27UF contains 1024 blocks, composed by 64 pages consisting in two NAND structures of 32 series connected Flash cells.

A program operation of HY27UF allows to write the 2112-byte page in typical 300us and an erase operation can be performed in typical 2ms on a 128K-byte(X8 device) block.

Data in the page mode can be read out at 60ns(1) cycle time per word. The I/O pins serve as the ports for address and data input/output as well as command input. This HY27UF interface allows a reduced pin count and easy migration towards different densities, without any rearrangement of footprint.

Commands, Data and Addresses are synchronously introduced using CE#, WE#, ALE and CLE input pin. The HY27UF on-chip Program/Erase Controller automates all program and erase functions including pulse repetition, where required, and internal verification and margining of data. The modifying can be locked using the WP# input pin. The output pin RB# (open drain buffer) signals the status of the device HY27UF during each operation. In a system with multiple memories the RB# pins can be connected all together to provide a global status signal. Even the write-intensive systems can take advantage of the HY27(U/S)F(08/16)1G2M extended reliability of 100K program/ erase cycles by providing ECC (Error Correcting Code) with real time mapping-out algorithm.

Optionally the chip could be offered with the CE# don't care function. This HY27UF option allows the direct download of the code from the NAND Flash memory device by a microcontroller, since the CE# transitions do not stop the read operation.

The copy back function allows the optimization of defective blocks management: when a page program operation fails the data can be directly programmed in another page inside the same array section without the time consuming serial data insertion phase. The cache program feature allows the data insertion in the cache register while the data register is copied into the flash array. This pipelined program operation improves the program throughput when long files are written inside the memory of HY27UF.

A cache read feature is also implemented. This feature allows to dramatically improve the read throughput when consecutive pages have to be streamed out. This device HY27UF includes also extra features like OTP/Unique ID area, Automatic Read at Power Up, Read ID2 extension.

The HYNIX HY27UF series is available in 48 - TSOP1 12 x 20 mm , 48 - WSOP1 12 x 17 mm, FBGA 9.5 x 12 mm.