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M29W008AT

M29W008AB

8 Mbit (1Mb x8, Boot Block)

Low Voltage Single Supply Flash Memory

FEATURES SUMMARY

■

Figure 1. Packages

■

2.7V to 3.6V SUPPLY VOLTAGE for

PROGRAM, ERASE and READ

OPERATIONS

ACCESS TIME: 80ns

PROGRAMMING TIME: 10µs typical

PROGRAM/ERASE CONTROLLER (P/E.C.)

– Program Byte-by-Byte

– Status Register bits and Ready/Busy

Output

SECURITY PROTECTION MEMORY AREA

INSTRUCTIONS ADDRESS CODING: 3

digits

MEMORY BLOCKS

– Boot Block (Top or Bottom location)

– Parameter and Main blocks

BLOCK, MULTI-BLOCK and CHIP ERASE

MULTI BLOCK PROTECTION/TEMPORARY

UNPROTECTION MODES

ERASE SUSPEND and RESUME MODES

– Read and Program another Block during

Erase Suspend

LOW POWER CONSUMPTION

– Stand-by and Automatic Stand-by

100,000 PROGRAM/ERASE CYCLES per

BLOCK

20 YEARS DATA RETENTION

– Defectivity below 1ppm/year

ELECTRONIC SIGNATURE

– Manufacturer Code: 20h

– Top Device Code, M29W008AT: D2h

– Bottom Device Code, M29W008AB: DCh

TSOP40 (N)

10 x 20mm

Figure 2. Logic Diagram

VCC

A0-A19

M29W008AT

M29W008AB

DQ0-DQ7

VSS

AI02716

March 2004

1/36

M29W008AT, M29W008AB

TABLE OF CONTENTS

Figure 1. Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Figure 2. Logic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

TABLE OF CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 3. TSOP Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Table 1. Signal Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Organization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Memory Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Bus Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Command Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Table 2. Top Boot Block Addresses, M29W008AT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Table 3. Bottom Boot Block Addresses, M29W008AB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

SIGNAL DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Address Inputs (A0-A19). . . . . . . . . . . . . . . . . . . . .

Data Input/Outputs (DQ0-DQ7). . . . . . . . . . . . . . . .

Chip Enable (E). . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output Enable (G). . . . . . . . . . . . . . . . . . . . . . . . . .

Write Enable (W). . . . . . . . . . . . . . . . . . . . . . . . . . .

Ready/Busy Output (RB). . . . . . . . . . . . . . . . . . . . .

Reset/Block Temporary Unprotect Input (RP). . . . .

Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . .

Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

.......

......

.......

......

.....8

DEVICE OPERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Read. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Write. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Output Disable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Stand-by. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Automatic Stand-by. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Electronic Signature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Block Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Block Temporary Unprotection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Block Unprotection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 4. User Bus Operations

(1)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Table 5. Read Electronic Signature (following AS instruction or with A9 = V

) . . . . . . . . . . . . . . 10

Table 6. Read Block Protection with AS Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

INSTRUCTIONS AND COMMANDS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Coded Cycles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Table 7. Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Read/Reset (RD) Instruction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

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M29W008AT, M29W008AB

Auto Select (AS) Instruction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Program (PG) Instruction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Block Erase (BE) Instruction.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chip Erase (CE) Instruction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Erase Suspend (ES) Instruction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Erase Resume (ER) Instruction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 8. Instructions

(1)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

......

. . . . 11

. . . . 12

. . . . 13

STATUS REGISTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Table 9. Polling and Toggle Bits . . . . . . . . . . . . . .

Data Polling Bit (DQ7). . . . . . . . . . . . . . . . . . . . . . .

Toggle Bit (DQ6).. . . . . . . . . . . . . . . . . . . . . . . . . . .

Error Bit (DQ5). . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Erase Timer Bit (DQ3). . . . . . . . . . . . . . . . . . . . . . .

Toggle Bit (DQ2).. . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 10. Status Register Bits . . . . . . . . . . . . . . . . .

.......

......

.......

......

. . . . 14

. . . . 15

MAXIMUM RATING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Table 11. Absolute Maximum Ratings (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

DC AND AC CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 4. AC Testing Input Output Waveform. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 12. AC Measurement Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 5. AC Testing Load Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 13. Capacitance

(1)

(TA = 25 °C, f = 1 MHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 14. DC Characteristics

= 0 to 70°C, –20 to 85°C or –40 to 85°C; V

= 2.7V to 3.6V) . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 15. Read AC Characteristics

= 0 to 70°C, –20 to 85°C or –40 to 85°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Table 16. Read AC Characteristics

= 0 to 70°C, –20 to 85°C or –40 to 85°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 6. Read Mode AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Table 17. Write AC Characteristics, W Controlled

= 0 to 70°C, –20 to 85°C or –40 to 85°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Table 18. Write AC Characteristics, W Controlled

= 0 to 70°C, –20 to 85°C or –40 to 85°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Table 19. Write AC Characteristics, E Controlled

= 0 to 70°C, –20 to 85°C or –40 to 85°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Table 20. Write AC Characteristics, E Controlled

= 0 to 70°C, –20 to 85°C or –40 to 85°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 7. Write AC Waveforms, W Controlled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Figure 8. Write AC Waveforms, E Controlled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Figure 9. Read and Write AC Characteristics, RP Related. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Table 21. Data Polling and Toggle Bit AC Characteristics

(1)

= 0 to 70°C, –20 to 85°C or –40 to 85°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Table 22. Data Polling and Toggle Bit AC Characteristics

(1)

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M29W008AT, M29W008AB

= 0 to 70°C, –20 to 85°C or –40 to 85°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 10.Data Polling DQ7 AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 11.Data Toggle DQ6, DQ2 AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 12.Data Polling Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 13.Data Toggle Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 23. Program, Erase Times and Program, Erase Endurance Cycles

= 0 to 70°C; V

= 2.7V to 3.6V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

......

. . . . 27

. . . . 28

. . . . 29

. . . . 30

. . . . . . . . . . 30

POWER SUPPLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Power Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Supply Rails . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

SECURITY PROTECTION MEMORY AREA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Read Security Data (RDS) Instruction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Table 24. Security Block Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 14.Security Block Address Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

PACKAGE MECHANICAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 15.TSOP40 - 40 lead Plastic Thin Small Outline, 10 x 20mm, Package Outline . . . . . . . . . 33

Table 25. TSOP40 - 40 lead Plastic Thin Small Outline, 10 x 20mm, Package Mechanical Data . 33

PART NUMBERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Table 26. Ordering Information Scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

REVISION HISTORY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Table 27. Revision History. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

4/36

M29W008AT, M29W008AB

DESCRIPTION

The M29W008A is a non-volatile memory that may

be erased electrically at the block or chip level and

programmed in-system on a Byte-by-Byte basis

using only a single 2.7V to 3.6V V

supply. For

Program and Erase operations the necessary high

voltages are generated internally. The device can

also be programmed in standard programmers.

The array matrix organization allows each block to

be erased and reprogrammed without affecting

other blocks. Blocks can be protected against pro-

graming and erase on programming equipment,

and temporarily unprotected to make changes in

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 de-

vice in cycles of commands to a Command Inter-

face using standard microprocessor write timings.

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

package.

Figure 3. TSOP Connections

Table 1. Signal Names

A0-A19

DQ0-DQ7

Address Inputs

Data Input/Outputs, Command Inputs

Chip Enable

Output Enable

Write Enable

Reset/Block Temporary Unprotect

Ready/Busy Output

Supply Voltage

Ground

Not Connected Internally

A16

A15

A14

A13

A12

A11

A18

10 M29W008AT 31

11 M29W008AB 30

AI02717

A17

VSS

A19

A10

DQ7

DQ6

DQ5

DQ4

VCC

DQ3

DQ2

DQ1

DQ0

VSS

Organization

The M29W008A is organized as 1Mb x8. The

memory uses the address inputs A0-A19 and the

Data Input/Outputs DQ0-DQ7. Memory control is

provided by Chip Enable E, Output Enable G and

Write Enable W inputs.

A Reset/Block Temporary Unprotection RP tri-lev-

el input provides a hardware reset when pulled

Low, and when held High (at V

) temporarily un-

protects blocks previously protected allowing them

to be programed and erased. Erase and Program

operations 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.

Memory Blocks

The devices feature asymmetrically blocked archi-

tecture providing system memory integration. Both

M29W008AT and M29W008AB devices have an

array of 19 blocks, one Boot Block of 16 Kbytes,

two Parameter Blocks of 8 Kbytes, one Main Block

of 32 Kbytes and fifteen Main Blocks of 64 Kbytes.

The M29W008AT has the Boot Block at the top of

the memory address space and the M29W008AB

locates the Boot Block starting at the bottom. The

memory maps are showed in Tables

and

Each

block can be erased separately, any combination

of blocks can be specified for multi-block erase or

the entire chip may be erased. The Erase opera-

tions are managed automatically by the P/E.C.

The block erase operation can be suspended in

5/36