M29F016D datasheet(5/37 Pages) STMICROELECTRONICS

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M29F016D

SUMMARY DESCRIPTION

The M29F016D is a 16 Mbit (2Mb x8) non-volatile

memory that can be read, erased and repro-

grammed. These operations can be performed us-

ing a single low voltage 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 32 uniform blocks of

64Kbytes (see Figure 5, Block Addresses) that

can be erased independently so it is possible to

preserve valid data while old data is erased.

Blocks can be protected in groups of 4 to prevent

accidental Program or Erase commands from

modifying the memory. Program and Erase com-

mands are written 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 op-

erations that are required to update the memory

contents. The end of a program or erase operation

can be detected and any error conditions identi-

fied. The command set required to control the

memory is consistent with JEDEC standards.

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 TSOP40 (10 x 20mm) and

SO44 packages. Access times of 55, 70 and 90ns

are available.

In order to meet environmental requirements, ST

offers the M29F016D in ECOPACK® packages.

ECOPACK packages are Lead-free. The category

of second Level Interconnect is marked on the

package and on the inner box label, in compliance

with JEDEC Standard JESD97. The maximum rat-

ings related to soldering conditions are also

marked on the inner box label.

ECOPACK is an ST trademark. ECOPACK speci-

fications are available at: www.st.com.

The memory is supplied with all the bits erased

(set to ’1’).

Figure 2. Logic Diagram

Table 1. Signal Names

AI05269

A0-A20

DQ0-DQ7

VCC

M29F016D

VSS

A0-A20

Address Inputs

DQ0-DQ7

Data Inputs/Outputs

Chip Enable

Output Enable

Write Enable

Reset/Block Temporary Unprotect

Ready/Busy Output

VCC

Supply Voltage

VSS

Ground

Not Connected Internally

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