VSS

DQ1

DQ2

A7

A1

E

A4

A3

A11

A17

A14

A15

DQ7

A9

A16

G

NC

DQ5

DQ3

NC

VCC

DQ4

DQ6

A8

W

RB

A18

NC

RP

AI02064

M29W004T

M29W004B

10

1

11

20

21

30

31

40

A0

A12

A13

NC

A10

A5

A6

VCC

DQ0

VSS

A2

Figure 2. TSOP Pin Connections

Warning: NC = Not Connected.

the application. Each block can be programmed

and erased over 100,000 cycles.

Instructions for Read/Reset, Auto Select for read-

ing the Electronic Signature or Block Protection

status, Programming, Block and Chip Erase, Erase

Suspend and Resume are written to the device in

cycles of commands to a Command Interface using

standard microprocessor write timings.

The device is offered in TSOP40 (10 x 20mm)

package.

Organisation

The M29W004 is organised as 512K x8. The mem-

ory uses the address inputs A0-A18 and the Data

Input/Outputs DQ0-DQ7. Memory control is pro-

vided by Chip Enable E, Output Enable G and Write

Enable W inputs.

A Reset/Block Temporary Unprotection RP tri-level

input provides a hardware reset when pulled Low,

blocks previously protected allowing them to be

programed and erased. Erase and Program opera-

tions are controlled by an internal Program/Erase

Controller (P/E.C.). Status Register data output on

DQ7 provides a Data Polling signal, and DQ6 and

DQ2 provide Toggle signals to indicate the state of

the P/E.C operations. A Ready/Busy RB output

indicates the completion of the internal algorithms.

DESCRIPTION (Cont’d)

Symbol

Parameter

Value

Unit

Ambient Operating Temperature

(3)

–40 to 85

°C

Temperature Under Bias

–50 to 125

°C

Storage Temperature

–65 to 150

°C

(2)

Input or Output Voltages

–0.6 to 5

V

Supply Voltage

–0.6 to 5

V

(2)

A9, E, G, RP Voltage

–0.6 to 13.5

V

Notes: 1. Except for the rating "Operating Temperature Range", stresses above those listed in the Table "Absolute Maximum Ratings"

may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other

conditions above those indicated in the Operating sections of this specification is not implied. Exposure to Absolute Maximum

Rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other

relevant quality documents.

2. Minimum Voltage may undershoot to –2V during transition and for less than 20ns.

3. Depends on range.

A0-A18

Address Inputs

DQ0-DQ7

Data Input/Outputs, Command Inputs

E

Chip Enable

G

Output Enable

W

Write Enable

RP

Reset / Block Temporary Unprotect

RB

Ready/Busy Output

Supply Voltage

Ground

Table 1. Signal Names

2/30

M29W004T, M29W004B