參數(shù)資料
型號(hào)： AM29DL322GT70WMIN
廠商： ADVANCED MICRO DEVICES INC
元件分類(lèi)： PROM
英文描述： 2M X 16 FLASH 3V PROM, 70 ns, PBGA48
封裝： 6 X 12 MM, 0.80 MM PITCH, FBGA-48
文件頁(yè)數(shù)： 21/53頁(yè)
文件大?。?/td> 1448K
代理商： AM29DL322GT70WMIN
28
Am29DL32xG
March 26, 2004
AD V A NCE
I N FO RM ATI O N
WRITE OPERATION STATUS
The device provides several bits to determine the status of a
program or erase operation: DQ2, DQ3, DQ5, DQ6, and
DQ7. Table 14 and the following subsections describe the
function of these bits. DQ7 and DQ6 each offer a method
for determining whether a program or erase operation is
complete or in progress. The device also provides a hard-
ware-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 system
whether an Embedded Program or Erase algorithm is in
progress or completed, or whether a bank is in Erase Sus-
pend. Data# Polling is valid after the rising edge of the final
WE# pulse in the command sequence.
During the Embedded Program algorithm, the device out-
puts on DQ7 the complement of the datum programmed to
DQ7. This DQ7 status also applies to programming during
Erase Suspend. When the Embedded 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 ac-
tive for approximately 1 s, then that bank returns to the
read mode.
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 the read mode. If not all selected
sectors are protected, the Embedded Erase algorithm
erases the unprotected sectors, and ignores the se-
lected sectors that are protected. However, if the sys-
tem 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 DQ7–DQ0 will appear on suc-
cessive read cycles.
Table 14 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
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
Am29LV010BB-120FI 1 Megabit (128 K x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AM29DL322GT-90EI 制造商:Advanced Micro Devices 功能描述:Flash Mem Parallel 3.3V 32M-Bit 4M x 8/2M x 16 90ns 48-Pin TSOP
AM29DL323CB-90EI 制造商:Advanced Micro Devices 功能描述:
AM29DL323DB-90EI 制造商:Advanced Micro Devices 功能描述:
AM29DL323DT-120WDI 制造商:Advanced Micro Devices 功能描述:
AM29DL323DT120WDIT 制造商:Advanced Micro Devices 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

*
*
*