
[Elite Semiconductor Memory Technology Inc.
GENERAL DESCRIPTION
NAND Flash devices include an asynchronous data interface for high-performance I/O operations. These devices use a highly multiplexed 8-bit bus (I/Ox) to transfer commands, address, and data. There are five control signals used to implement the asynchronous data interface: CE#, CLE, ALE, WE#, and RE#. Additional signals control hardware write protection and monitor device status (R/B#).
This hardware interface creates a low pin-count device with a standard pinout that remains the same from one density to another, enabling future upgrades to higher densities with no board redesign.
FEATURES
◾ Voltage Supply: 1.8V (1.7V to 1.95V)
◾ Open NAND Flash Interface (ONFI) 1.0-compliant1
◾ Single-level cell (SLC) technology
◾ Organization
– Page size: 2176 bytes (2048 + 128 bytes)
– Block size: 64 pages (128K + 8K bytes)
– Plane size: 2 planes x 1024 blocks per plane
– Device size: 2048 blocks
◾ Asynchronous I/O performance
– tRC/ tWC: 30ns
◾ Array performance
– Read page: 30us
– Program page: 200us (TYP)
– Erase block: 2ms(TYP)
◾ Command set: ONFI NAND Flash Protocol
◾ Advanced command set
– Program page cache mode
– Read page cache mode
– One-time programmable (OTP) mode
– Programmable drive strength
– Two-plane commands
– Read unique ID
– Internal data move
◾ Operation status byte provides software method for
detecting
– Operation completion
– Pass/ fail condition
– Write-protect status
◾ Ready/ Busy# (R/B#) provides a hardware method of
detecting operation completion
◾ WP#: Write protect entire device
◾ Block 0 is valid when shipped from factory with ECC. For
minimum required ECC, see Error
Management.RESET(FFh) required as first command
after power-on
◾ RESET (FFh) required as first command after power- on
◾ Internal data move operations supported within the
plane from which data is read
◾ Quality and reliability
– Data retention: JESD47G-compliant
– Endurance: 100,000 PROGRAM/ERASE cycles
– Additional: Uncycled data retention: 10 years
◾ Package
– 63-ball VFBGA
◾ Operating temperature
– Commercial: 0°C to +70°C
Notes: 1. The ONFI 1.0 specification is available at
www.onfi.org.