GENERAL DESCRIPTION The MT28F320A18 is a nonvolatile electrically block-erasable (Flash) memory containing eight 4-Kword parameter blocks and sixty-three 32K-word main blocks. FEATURES • 32Mb block architecture Seventy-one erasable blocks: Eight 4K-word parameter blocks Sixty-three 32K-word main memory blocks • VCC, VCCQ, VPP voltages* 1.65V (MIN), 1.95V (MAX) VCC, VCCQ 0.9V (MIN), 1.95V (MAX) VPP (in-system PROGRAM/ERASE) 12V ±5% (HV) VPP tolerant (factory programming compatibility) • Random access time: 70ns @ 1.65V VCC • Low power consumption (VCC = 1.8V) Asynchronous Read < 18mA Write/Erase < 40mA (MAX) Standby < 50µA (MAX) Automatic power saving feature (APS) • Enhanced write and erase suspend options ERASE-SUSPEND-to-READ PROGRAM-SUSPEND-to-READ ERASE-SUSPEND-to-PROGRAM • Dual 64-bit chip protection registers for security purposes • Cross-compatible command support Extended command set Common flash interface • PROGRAM/ERASE cycle 100,000 WRITE/ERASE cycles per block (VPP = VPP1)
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