
Toshiba
256-MBIT (32M × 8 BITS) CMOS NAND E2PROM (32M BYTE SmartMedia™)
DESCRIPTION
The TC58NS256 is a single 3.3-V 256-Mbit (276,824,064) bit NAND Electrically Erasable and Programmable Read-Only Memory (NAND E2PROM) organized as 528 bytes × 32 pages × 2048 blocks. The device has a 528-byte static register which allows program and read data to be transferred between the register and the memory cell array in 528-byte increments. The Erase operation is implemented in a single block unit (16 Kbytes + 512 bytes: 528 bytes × 32 pages).
FEATURES
• Organization
Memory cell array 528 × 64K × 8
Register 528 × 8
Page size 528 bytes
Block size (16K + 512) bytes
• Modes
Read, Reset, Auto Page Program,
Auto Block Erase, Status Read
• Mode control
Serial input/output, Command control
• Complies with the SmartMediaTM Electrical
Specification and Data Format Specification
issued by the SSFDC Forum
• Power supply
VCC = 3.3 V ± 0.3 V
• Access time
Cell array-register 25 µs max
Serial Read cycle 50 ns min
• Operating current
Read (50-ns cycle) 10 mA typ.
Program (avg.) 10 mA typ.
Erase (avg.) 10 mA typ.
Standby 100 µA max
• Package
TC58NS256DC: FDC-22A (Weight: 1.8 g typ.)