AM29DL800BT70WBI 参数 Datasheet PDF下载

型号：	AM29DL800BT70WBI
PDF下载：	下载PDF文件查看货源
内容描述：	8兆位（ 1一M× 8位/ 512的K× 16位） CMOS 3.0伏只，同时操作闪存 [8 Megabit (1 M x 8-Bit/512 K x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Operation Flash Memory]
分类和应用：	闪存
文件页数/大小：	43 页 / 545 K
品牌：	AMD [ AMD ]

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P R E L I M I N A R Y

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?

Temporary Sector

Unprotect Mode

Temporary Sector

Unprotect Mode

Cycle = 60h?

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

21519A-6

Figure 2. In-System Sector Protect/Unprotect Algorithms

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AM29DL800BT70WBI 参数 Datasheet PDF下载

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