M58LR128KB855 datasheet(53/110 Pages) NUMONYX

부품명	M58LR128KB855

상세설명	128 or 256 Mbit (횞16, multiple bank, multilevel interface, burst) 1.8 V supply Flash memories

PDF	110 Pages

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제조업체	NUMONYX [Numonyx B.V]

홈페이지	http://www.numonyx.com

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53 / 110 page

M58LR128KT, M58LR128KB, M58LR256KT, M58LR256KB

Block locking

53/111

Table 17.

Lock status

Current protection status(1)

(WP, DQ1, DQ0)

The lock status is defined by the write protect pin and by DQ1 (‘1’ for a locked-down block) and DQ0 (‘1’ for

a locked block) as read in the Read Electronic Signature command with DQ1 = VIH and DQ0 = VIL.

Next protection status(1)

(WP, DQ1, DQ0)

Current

state

Program/erase

allowed

After Block

Lock

command

After Block

Unlock

command

After Block

Lock-Down

command

After WP

transition

1,0,0

yes

1,0,1

1,0,0

1,1,1

0,0,0

1,0,1(2)

All blocks are locked at power-up, so the default configuration is 001 or 101 according to WP status.

1,0,1

1,0,0

1,1,1

0,0,1

1,1,0

yes

1,1,1

1,1,0

1,1,1

0,1,1

1,1,1

1,1,0

1,1,1

0,1,1

0,0,0

yes

0,0,1

0,0,0

0,1,1

1,0,0

0,0,1(2)

0,0,1

0,0,0

0,1,1

1,0,1

0,1,1

1,1,1 or 1,1,0(3)

A WP transition to VIH on a locked block will restore the previous DQ0 value, giving a 111 or 110.

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