M28R400CT
M28R400CB
4 Mbit (256Kb x16, Boot Block)
1.8V Supply Flash Memory
FEATURES SUMMARY
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SUPPLY VOLTAGE
鈥?V
DD
= 1.65V to 2.2V Core Power Supply
鈥?V
DDQ
= 1.65V to 2.2V for Input/Output
鈥?V
PP
= 12V for fast Program (optional)
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Figure 1. Packages
ACCESS TIMES: 90ns, 120ns
PROGRAMMING TIME
鈥?10碌s typical
鈥?Double Word Programming Option
FBGA
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COMMON FLASH INTERFACE
鈥?64 bit Security Code
MEMORY BLOCKS
鈥?Parameter Blocks (Top or Bottom location)
鈥?Main Blocks
TFBGA46 (ZB)
6.39 x 6.37mm
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BLOCK LOCKING
鈥?All blocks locked at Power Up
鈥?Any combination of blocks can be locked
鈥?WP for Block Lock-Down
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SECURITY
鈥?64 bit user Programmable OTP cells
鈥?64 bit unique device identifier
鈥?One Parameter Block Permanently Lockable
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AUTOMATIC STAND-BY MODE
PROGRAM and ERASE SUSPEND
100,000 PROGRAM/ERASE CYCLES per
BLOCK
ELECTRONIC SIGNATURE
鈥?Manufacturer Code: 20h
鈥?Top Device Code, M28R400CT: 882Ah
鈥?Bottom Device Code, M28R400CB: 882Bh
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March 2003
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