AM29BL802C70RZE 参数 Datasheet PDF下载

型号：	AM29BL802C70RZE
PDF下载：	下载PDF文件查看货源
内容描述：	8兆位（ 512K的x 16位） CMOS 3.0伏只突发模式闪存 [8 Megabit (512 K x 16-Bit) CMOS 3.0 Volt-only Burst Mode Flash Memory]
分类和应用：	闪存
文件页数/大小：	46 页 / 772 K
品牌：	SPANSION [ SPANSION ]

D A T A S H E E T

START

Protect all sectors:

The indicated portion

of the sector protect

algorithm must be

performed for all

PLSCNT = 1

RESET# = V_ID

unprotected sectors

prior to issuing the

first sector

Wait 1 μs

unprotect address

First Write

Cycle = 60h?

First Write

Cycle = 60h?

Temporary Sector

Unprotect Mode

Temporary Sector

Unprotect Mode

Yes

Set up sector

address

All sectors

protected?

Sector Protect:

Write 60h to sector

address with

A6 = 0, A1 = 1,

A0 = 0

Yes

Set up first sector

address

Sector Unprotect:

Wait 150 µs

Write 60h to sector

address with

A6 = 1, A1 = 1,

A0 = 0

Verify Sector

Protect: Write 40h

to sector address

with A6 = 0,

Reset

PLSCNT = 1

Increment

PLSCNT

Wait 15 ms

A1 = 1, A0 = 0

Verify Sector

Unprotect: Write

40h to sector

address with

A6 = 1, A1 = 1,

A0 = 0

Read from

sector address

with A6 = 0,

A1 = 1, A0 = 0

Increment

PLSCNT

= 25?

Read from

sector address

with A6 = 1,

Data = 01h?

Yes

A1 = 1, A0 = 0

Yes

Set up

next sector

address

Yes

PLSCNT

= 1000?

Protect another

sector?

Data = 00h?

Yes

Device failed

Yes

Remove V_ID

from RESET#

Last sector

verified?

Device failed

Write reset

command

Yes

Remove V_ID

Sector Unprotect

Algorithm

from RESET#

Sector Protect

Algorithm

Sector Protect

complete

Write reset

command

Sector Unprotect

complete

Figure 1. In-system Sector Protect/Unprotect Algorithms

November 3, 2006 22371C7

Am29BL802C

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