SUMMARY DESCRIPTION
The M28R400C are available as Known Good Dice.
STMicroelectronics defines Known Good Dice as standard products offered as dice and tested for functionality and speed. STs Known Good Die products are as reliable and of the same quality as products delivered in packages.

FEATURES SUMMARY
■ SUPPLY VOLTAGE
    – VDD = 1.65V to 2.2V Core Power Supply
    – VDDQ= 1.65V to 2.2V for Input/Output
    – VPP = 12V for fast Program (optional)
■ ACCESS TIME: 100ns
■ PROGRAMMING TIME
    – 10µs typical
    – Double Word Programming Option
■ COMMON FLASH INTERFACE
    – 64 bit Security Code
■ MEMORY BLOCKS
    – Parameter Blocks (Top or Bottom location)
    – Main Blocks
■ BLOCK LOCKING
    – All blocks locked at Power Up
    – Any combination of blocks can be locked
    – WP for Block Lock-Down
■ SECURITY
    – 64 bit user Programmable OTP cells
    – 64 bit unique device identifier
    – One Parameter Block Permanently Lockable
■ AUTOMATIC STAND-BY MODE
■ PROGRAM and ERASE SUSPEND
■ 100,000 PROGRAM/ERASE CYCLES per BLOCK
■ ELECTRONIC SIGNATURE
    – Manufacturer Code: 20h
    – Top Device Code, M28R400CT: 882Ah
    – Bottom Device Code, M28R400CB: 882Bh