參數(shù)資料
型號(hào)： AM29DL162DB90PCI
廠商： ADVANCED MICRO DEVICES INC
元件分類(lèi)： PROM
英文描述： 1M X 16 FLASH 3V PROM, 90 ns, PBGA64
封裝： 13 X 11 MM, 1 MM PITCH, FORTIFIED, BGA-64
文件頁(yè)數(shù)： 21/56頁(yè)
文件大?。?/td> 1752K
代理商： AM29DL162DB90PCI
28
Am29DL16xD
February 14, 2003
WRITE OPERATION STATUS
The device provides several bits to determine the sta-
tus of a program or erase operation: DQ2, DQ3, DQ5,
DQ6, and DQ7. Table 15 and the following subsec-
tions describe the function of these bits. DQ7 and DQ6
each offer a method for determining whether a pro-
gram or erase operation is complete or in progress.
The device also provides a hardware-based output
signal, RY/BY#, to determine whether an Embedded
Program or Erase operation is in progress or has been
completed.
DQ7: Data# Polling
The Data# Polling bit, DQ7, indicates to the host sys-
tem whethe r an Embed ded Pr ogr am or Er as e
algorithm is in progress or completed, or whether a
bank is in Erase Suspend. Data# Polling is valid after
the rising edge of the final WE# pulse in the command
sequence.
During the Embedded Program algorithm, the device
outputs on DQ7 the complement of the datum pro-
grammed to DQ7. This DQ7 status also applies to
programming during Erase Suspend. When the Em-
bedded Program algorithm is complete, the device
outputs the datum programmed to DQ7. The system
must provide the program address to read valid status
information on DQ7. If a program address falls within a
protected sector, Data# Polling on DQ7 is active for
approximately 1 s, then that bank returns to reading
array data.
During the Embedded Erase algorithm, Data# Polling
produces a “0” on DQ7. When the Embedded Erase
algorithm is complete, or if the bank enters the Erase
Suspend mode, Data# Polling produces a “1” on DQ7.
The system must provide an address within any of the
sectors selected for erasure to read valid status infor-
mation on DQ7.
After an erase command sequence is written, if all
sectors selected for erasing are protected, Data# Poll-
ing on DQ7 is active for approximately 100 s, then
the bank returns to reading array data. If not all se-
lected sectors are protected, the Embedded Erase
algorithm erases the unprotected sectors, and ignores
the selected sectors that are protected. However, if the
system reads DQ7 at an address within a protected
sector, the status may not be valid.
Just prior to the completion of an Embedded Program
or Erase operation, DQ7 may change asynchronously
with DQ0–DQ6 while Output Enable (OE#) is asserted
low. That is, the device may change from providing
status information to valid data on DQ7. Depending on
when the system samples the DQ7 output, it may read
the status or valid data. Even if the device has com-
pleted the program or erase operation and DQ7 has
valid data, the data outputs on DQ0–DQ6 may be still
invalid. Valid data on DQ0–DQ7 will appear on suc-
cessive read cycles.
Table 15 shows the outputs for Data# Polling on DQ7.
Figure 5 shows the Data# Polling algorithm. Figure 21
in the AC Characteristics section shows the Data#
Polling timing diagram.
Figure 5.
Data# Polling Algorithm
DQ7 = Data?
Yes
No
DQ5 = 1?
No
Yes
FAIL
PASS
Read DQ7–DQ0
Addr = VA
Read DQ7–DQ0
Addr = VA
DQ7 = Data?
START
Notes:
1. VA = Valid address for programming. During a sector
erase operation, a valid address is any sector address
within the sector being erased. During chip erase, a
valid address is any non-protected sector address.
2. DQ7 should be rechecked even if DQ5 = “1” because
DQ7 may change simultaneously with DQ5.
相關(guān)PDF資料
PDF描述
AM29DL322GT70WMIN 2M X 16 FLASH 3V PROM, 70 ns, PBGA48
AM29DL324GB12PCI 2M X 16 FLASH 3V PROM, 120 ns, PBGA64
AM29DL324GT12WMIN 2M X 16 FLASH 3V PROM, 120 ns, PBGA48
AM29DL800BT70RSF 512K X 16 FLASH 3V PROM, 70 ns, PDSO44
AM29F032B-90SDB 4M X 8 FLASH 5V PROM, 90 ns, PDSO44
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AM29DL163DB-90EI\\T 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 16MBIT 2MX8/1MX16 90NS 48TSOP - Tape and Reel
AM29DL163DB-90EI\T 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 16MBIT 2MX8/1MX16 90NS 48TSOP - Tape and Reel
AM29DL163DB-90EIT 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 16MBIT 2MX8/1MX16 90NS 48TSOP - Tape and Reel
AM29DL163DT70EF 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 16MBIT 2MX8/1MX16 70NS 48TSOP - Trays
AM29DL163DT-70EF 制造商:Spansion 功能描述:
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*