MX29LV400B Просмотр технического описания (PDF) - Macronix International

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MX29LV400B

4M-BIT [512K x 8 / 256K x 16] CMOS SINGLE VOLTAGE 3V ONLY FLASH MEMORY

Macronix International 

MX29LV400T/B

COMMAND DEFINITIONS

Device operations are selected by writing specific ad-

dress and data sequences into the command register.

Writing incorrect address and data values or writing them

in the improper sequence will reset the device to the

read mode. Table 4 defines the valid register command

sequences. Note that the Erase Suspend (B0H) and

Erase Resume (30H) commands are valid only while the

Sector Erase operation is in progress.

TABLE 5. MX29LV400T/B BUS OPERATION

DESCRIPTION

Read

Write

Reset

Temproary sector unlock

Output Disable

Standby

Sector Protect

Chip Unprotect

Sector Protection Verify

ADDRESS

Q8~Q15

CE OE WE RESET A17 A10 A9 A8 A6 A5 A1 A0 Q0~Q7 BYTE

BYTE

A11

A7

A2

=VIH

=VIL

L

LHH

AIN

Dout

Dout Q8~Q14=High Z

Q15=A-1

L HLH

AIN

DIN(3) DIN Q8~Q14=High Z

Q15=A-1

X XXL

X

High Z High Z High Z

X X X VID

AIN

DIN

DIN

High Z

L HHH

X

High Z High Z High Z

Vcc± X X Vcc±

X

High Z High Z High Z

0.3V

0.3V

L H L VID SA X X X L X H L

DIN

X

X

L H L VID X X X X H X H L

DIN

X

X

L

L H H SA X VID X L X H L CODE(5)

X

X

NOTES:

1. Manufacturer and device codes may also be accessed via a command register write sequence. Refer to Table 4.

2. VID is the Silicon-ID-Read high voltage, 11.5V to 12.5V.

3. Refer to Table 4 for valid Data-In during a write operation.

4. X can be VIL or VIH.

5. Code=00H/XX00H means unprotected.

Code=01H/XX01H means protected.

6. A17~A12=Sector address for sector protect.

7. The sector protect and chip unprotect functions may also be implemented via programming equipment.

P/N:PM0710

REV. 1.4, NOV. 23, 2001

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