M29F160BB datasheet(3/22 Pages) STMICROELECTRONICS

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M29F160BT, M29F160BB

SUMMARY DESCRIPTION

The M29F160B is a 16Mbit (2Mb x8 or 1Mb x16)

non-volatile memory that can be read, erased and

reprogrammed. These operations can be per-

formed using a single 5V supply. On power-up the

memory defaults to its Read mode where it can be

read in the same way as a ROM or EPROM.

The memory is divided into blocks that can be

erased independently so it is possible to preserve

valid data while old data is erased. Each block can

be protected independently to prevent accidental

Program or Erase commands from modifying the

memory. Program and Erase commands are writ-

ten to the Command Interface of the memory. An

on-chip Program/Erase Controller simplifies the

process of programming or erasing the memory by

taking care of all of the special operations that are

required to update the memory contents. The end

of a program or erase operation can be detected

and any error conditions identified. The command

set required to control the memory is consistent

with JEDEC standards.

The blocks in the memory are asymmetrically ar-

ranged, see Tables 3 and 4, Block Addresses. The

first or last 64 Kbytes have been divided into four

additional blocks. The 16 Kbyte Boot Block can be

used for small initialization code to start the micro-

processor, the two 8 Kbyte Parameter Blocks can

be used for parameter storage and the remaining

32K is a small Main Block where the application

may be stored.

Chip Enable, Output Enable and Write Enable sig-

nals control the bus operation of the memory.

They allow simple connection to most micropro-

cessors, often without additional logic.

The memory is offered in a TSOP48 (12 x 20mm)

package and it is supplied with all the bits erased

(set to ’1’).

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