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參數(shù)資料
| 型號： | A29040BL |
| 廠商： | AMIC Technology Corporation |
| 英文描述： | 512K X 8 Bit CMOS 5.0 Volt-only, Uniform Sector Flash Memory |
| 中文描述： | 為512k × 8位CMOS 5.0伏只，統(tǒng)一部門快閃記憶體 |
| 文件頁數(shù)： | 12/29頁 |
| 文件大?。?/td> | 392K |
| 代理商： | A29040BL |
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A29040B Series
Write Operation Status
START
Read I/O
7
-I/O
0
Address = VA
I/O
7
= Data
FAIL
No
Note :
1. VA = Valid address for programming. During a sector
erase operation, a valid address is an address within any
sector selected for erasure. During chip erase, a valid
address is any non-protected sector address.
2. I/O
7
should be rechecked even if I/O
5
= "1" because
I/O
7
may change simultaneously with I/O
5
.
No
Read I/O
7
- I/O
0
Address = VA
I/O
5
= 1
I/O
7
= Data
Yes
No
PASS
Yes
Yes
Figure 3. Data Polling Algorithm
Several bits, I/O
2
, I/O
3
, I/O
5
, I/O
6
, and I/O
7,
are provided in
the A29040B to determine the status of a write operation.
Table 5 and the following subsections describe the functions
of these status bits. I/O
7
, I/O
6
and I/O
2
each offer a method
for determining whether a program or erase operation is
complete or in progress. These three bits are discussed first.
I/O
7
:
Data
Polling
The
Data
Polling bit, I/O
7
, indicates to the host system
whether an Embedded Algorithm is in progress or
completed, or whether the device is in Erase Suspend.
Data
Polling is valid after the rising edge of the final
WE
pulse in
the program or erase command sequence.
During the Embedded Program algorithm, the device outputs
on I/O
7
the complement of the datum programmed to I/O
7
.
This I/O
7
status also applies to programming during Erase
Suspend. When the Embedded Program algorithm is
complete, the device outputs the datum programmed to I/O
7
.
The system must provide the program address to read valid
status information on I/O
7
. If a program address falls within a
protected sector,
Data
Polling on I/O
7
is active for
approximately 2
μ
s, then the device returns to reading array
data.
During the Embedded Erase algorithm,
Data
Polling
produces a "0" on I/O
7
. When the Embedded Erase algorithm
is complete, or if the device enters the Erase Suspend mode,
Data
Polling produces a "1" on I/O
7
.This is analogous to the
complement/true datum output described for the Embedded
Program algorithm: the erase function changes all the bits in
a sector to "1"; prior to this, the device outputs the
"complement," or "0." The system must provide an address
within any of the sectors selected for erasure to read valid
status information on I/O
7
.
After an erase command sequence is written, if all sectors
selected for erasing are protected,
Data
Polling on I/O
7
is
active for approximately 100
μ
s, then the device returns to
reading array data. If not all selected sectors are protected,
the Embedded Erase algorithm erases the unprotected
sectors, and ignores the selected sectors that are protected.
When the system detects I/O
7
has changed from the
complement to true data, it can read valid data at I/O
7
- I/O
0
on the following read cycles. This is because I/O
7
may
change asynchronously with I/O
0
- I/O
6
while Output Enable
(
OE
) is asserted low. The
Data
Polling Timings (During
Embedded Algorithms) figure in the "AC Characteristics"
section illustrates this. Table 5 shows the outputs for
Data
Polling on I/O
7
. Figure 3 shows the
Data
Polling algorithm.
PRELIMINARY
(December, 2004, Version 0.2)
11
AMIC Technology, Corp.
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PDF描述 |
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| A29040BV | 512K X 8 Bit CMOS 5.0 Volt-only, Uniform Sector Flash Memory |
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| A29040BL-55F | RM Series - Econoline Unregulated DC-DC Converters; Input Voltage (Vdc): 05V; Output Voltage (Vdc): 15V; Power: 0.25W; Single Output Rail; Industry Standard Pinout; 1kVDC & 2kVDC Isolation; High Efficiency for Low Power Applications; UL94V-0 Package Material; Optional Continuous Short Circuit Protected; Fully Encapsulated; Efficiency to 80%; Custom versions available |
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| A29040BL-55 | 制造商:AMICC 制造商全稱:AMIC Technology 功能描述:512K X 8 Bit CMOS 5.0 Volt-only, Uniform Sector Flash Memory |
| A29040BL-55F | 制造商:AMICC 制造商全稱:AMIC Technology 功能描述:512K X 8 Bit CMOS 5.0 Volt-only, Uniform Sector Flash Memory |
| A29040BL-55U | 制造商:AMICC 制造商全稱:AMIC Technology 功能描述:512K X 8 Bit CMOS 5.0 Volt-only, Uniform Sector Flash Memory |
| A29040BL-55UF | 制造商:AMICC 制造商全稱:AMIC Technology 功能描述:512K X 8 Bit CMOS 5.0 Volt-only, Uniform Sector Flash Memory |
| A29040BL-70 | 制造商:AMICC 制造商全稱:AMIC Technology 功能描述:512K X 8 Bit CMOS 5.0 Volt-only, Uniform Sector Flash Memory |
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