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MBM29F200BC

FLASH MEMORY CMOS 2M (256K × 8/128K × 16) BIT

Fujitsu 

MBM29F200TC-55/-70/-90/MBM29F200BC-55/-70/-90

Table 4 .1 MBM29F200TC/BC Sector Protection Verify Autoselect Codes

Type

A12 to A16

A6

A1

A0

A-1*1

Manufacturer’s Code

X

VIL

VIL

VIL

VIL

Byte

MBM29F200TC

X

Word

Device Code

Byte

MBM29F200BC

X

Word

VIL

VIL

VIL

VIH

X

VIL

VIL

VIL

VIH

X

Sector Protection

Sector

Addresses

VIL

VIH

VIL

VIL

*1: A-1 is for Byte mode.

*2: Outputs 01H at protected sector addresses and outputs 00H at unprotected sector addresses.

Code

(HEX)

04H

51H

2251H

57H

2257H

01H*2

Table 4 .2 Expanded Autoselect Code Table

Type

Manufacturer’s Code

Code DQ15 DQ14 DQ13 DQ12 DQ11 DQ10

DQ9

DQ8

DQ

7

DQ

6

DQ

5

DQ

4

DQ

3

DQ

2

DQ

1

DQ

0

04H A-1/0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0

Device

Code

MBM29F200TC 51H

(B)

2251

A-1

0

HI-Z HI-Z HI-Z HI-Z HI-Z HI-Z HI-Z

0100010

0

0

1

1

0

0

1

1

0

0

0

0

0

0

1

1

(W) H

MBM29F200BC 57H

(B)

2257

A-1

0

HI-Z HI-Z HI-Z HI-Z HI-Z HI-Z HI-Z

0100010

0

0

1

1

0

0

1

1

0

0

1

1

1

1

1

1

(W) H

Sector Protection

01H A-1/0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1

(B): Byte mode

(W): Word mode

Write

Device erasure and programming are accomplished via the command register. The contents of the register serve

as inputs to the internal state machine. The state machine outputs dictate the function of the device.

The command register itself does not occupy any addressable memory location. The register is a latch used to

store the commands, along with the address and data information needed to execute the command. The

command register is written by bringing WE to VIL, while CE is at VIL and OE is at VIH. Addresses are latched on

the falling edge of WE or CE, whichever happens later; while data is latched on the rising edge of WE or CE,

whichever happens first. Standard microprocessor write timings are used.

Refer to AC Write Characteristics and the Erase/Programming Waveforms for specific timing parameters.

Sector Protection

The MBM29F200TC/BC features hardware sector protection. This feature will disable both program and erase

operations in any number of sectors (0 through 6). The sector protection feature is enabled using programming

equipment at the user’s site. The device is shipped with all sectors unprotected.

11

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