參數(shù)資料
型號(hào)： AM29F010-120ECB
廠商： ADVANCED MICRO DEVICES INC
元件分類： PROM
英文描述： 1 Megabit (128 K x 8-bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
中文描述： 128K X 8 FLASH 5V PROM, 120 ns, PDSO32
封裝： TSOP-32
文件頁(yè)數(shù)： 14/31頁(yè)
文件大小： 370K
代理商： AM29F010-120ECB
14
Am29F010
WRITE OPERATION STATUS
The device provides several bits to determine the sta-
tus of a write operation: DQ3, DQ5, DQ6, and DQ7.
Table 5 and the following subsections describe the
functions of these bits. DQ7 and DQ6 each offer a
method for determining whether a program or erase
operation is complete or in progress. These three bits
are discussed first.
DQ7: Data# Polling
The Data# Polling bit, DQ7, indicates to the host
system whether an Embedded Algorithm is in
progress or completed. 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 DQ7 the complement of the datum pro-
grammed to DQ7. When the Embedded Program algo-
rithm 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 sec-
tor, Data# Polling on DQ7 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 DQ7. When the Embedded Erase al-
gorithm is complete, Data# Polling produces a “1” on
DQ7. 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 in-
formation on DQ7.
After an erase command sequence is written, if all sec-
tors selected for erasing are protected, Data# Polling
on DQ7 is active for approximately 100
μ
s, then the de-
vice returns to reading array data. If not all selected
sectors are protected, the Embedded Erase algorithm
erases the unprotected sectors, and ignores the se-
lected sectors that are protected.
When the system detects DQ7 has changed from the
complement to true data, it can read valid data at DQ7–
DQ0 on the
following
read cycles. This is because DQ7
may change asynchronously with DQ0–DQ6 while
Output Enable (OE#) is asserted low. The Data# Poll-
ing Timings (During Embedded Algorithms) figure in
the “AC Characteristics” section illustrates this.
Table 5 shows the outputs for Data# Polling on DQ7.
Figure 3 shows the Data# Polling algorithm.
DQ7 = Data
Yes
No
No
DQ5 = 1
No
Yes
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 an address within any
sector selected for erasure. 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.
16736G-9
Figure 3.
Data# Polling Algorithm
相關(guān)PDF資料
PDF描述
AM29F010-120EE 1 Megabit (128 K x 8-bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
AM29F010-120EI 1 Megabit (128 K x 8-bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
AM29F010-120FC 1 Megabit (128 K x 8-bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
AM29F010-120FCB 1 Megabit (128 K x 8-bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
AM29F010-120FE 1 Megabit (128 K x 8-bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AM29F010-120JC 制造商:Advanced Micro Devices 功能描述: 制造商:Advanced Micro Devices 功能描述:NOR Flash, 128K x 8, 32 Pin, Plastic, PLCC 制造商:Analog Devices 功能描述:NOR Flash, 128K x 8, 32 Pin, Plastic, PLCC
AM29F010-120JC/T 制造商:Advanced Micro Devices 功能描述:FLASH 128KX8,120NS,PLCC32,TAPE 制造商:Advanced Micro Devices 功能描述:128K X 8 FLASH 5V PROM, 120 ns, PQCC32
AM29F010120JI 制造商:Advanced Micro Devices 功能描述:
AM29F010120PC 制造商:Advanced Micro Devices 功能描述:
AM29F010-45JC 制造商:Advanced Micro Devices 功能描述:NOR Flash Parallel 5V 1Mbit 128K x 8bit 45ns 32-Pin PLCC
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