- 您现在的位置：买卖IC网 > PDF目录364573 > A29800SERIES 1024K X 8 Bit / 512K X 16 Bit CMOS 5.0 Volt-only. Boot Sector Flash Memory PDF资料下载
参数资料
| 型号： | A29800SERIES |
| 英文描述： | 1024K X 8 Bit / 512K X 16 Bit CMOS 5.0 Volt-only. Boot Sector Flash Memory |
| 中文描述： | 1024K × 8位/ 16位为512k ×电压的CMOS 5.0只。引导扇区闪存 |
| 文件页数： | 16/34页 |
| 文件大小： | 341K |
| 代理商： | A29800SERIES |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页当前第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页
A29800 Series
PRELIMINARY (December, 2002, Version 0.1)
16
AMIC Technology, Corp.
I/O
5
: Exceeded Timing Limits
I/O
5
indicates whether the program or erase time has
exceeded a specified internal pulse count limit. Under
these conditions I/O
5
produces a "1." This is a failure
condition that indicates the program or erase cycle was not
successfully completed.
The I/O
5
failure condition may appear if the system tries to
program a "1 "to a location that is previously programmed
to "0." Only an erase operation can change a "0" back to a
"1." Under this condition, the device halts the operation,
and when the operation has exceeded the timing limits,
I/O
5
produces a "1."
Under both these conditions, the system must issue the
reset command to return the device to reading array data.
I/O
3
: Sector Erase Timer
After writing a sector erase command sequence, the
system may read I/O
3
to determine whether or not an
erase operation has begun. (The sector erase timer does
not apply to the chip erase command.) If additional sectors
are selected for erasure, the entire time-out also applies
after each additional sector erase command. When the
time-out is complete, I/O
3
switches from "0" to "1." The
system may ignore I/O
3
if the system can guarantee that
the time between additional sector erase commands will
always be less than 50
μ
s. See also the "Sector Erase
Command Sequence" section.
After the sector erase command sequence is written, the
system should read the status on I/O
7
(
Data
Polling) or
I/O
6
(Toggle Bit 1) to ensure the device has accepted the
command sequence, and then read I/O
3
. If I/O
3
is "1", the
internally controlled erase cycle has begun; all further
commands (other than Erase Suspend) are ignored until
the erase operation is complete. If I/O
3
is "0", the device
will accept additional sector erase commands. To ensure
the command has been accepted, the system software
should check the status of I/O
3
prior to and following each
subsequent sector erase command. If I/O
3
is high on the
second status check, the last command might not have
been accepted. Table 6 shows the outputs for I/O
3
.
START
Read I/O
7
-I/O
0
Toggle Bit
= Toggle
Program/Erase
Operation Not
Commplete, Write
Reset Command
Yes
Notes :
1. Read toggle bit twice to determine whether or not it is
toggling. See text.
2. Recheck toggle bit because it may stop toggling as I/O
5
changes to "1". See text.
No
Read I/O
7
- I/O
0
Twice
I/O
5
= 1
Toggle Bit
= Toggle
Yes
Yes
Program/Erase
Operation Complete
No
No
Read I/O
7
-I/O
0
(Notes 1,2)
Figure 5. Toggle Bit Algorithm
(Note 1)
相关PDF资料 |
PDF描述 |
|---|---|
| A2982ELW | Octal Peripheral Driver |
| A2982SLWTR | Octal Peripheral Driver |
| A2982 | 8-CHANNEL SOURCE DRIVERS |
| A2982SLW | 8-CHANNEL SOURCE DRIVERS |
| UDQ2982A | High temperature 16 A Triacs |
相关代理商/技术参数 |
参数描述 |
|---|---|
| A29800TM-55 | 制造商:AMICC 制造商全称:AMIC Technology 功能描述:1024K X 8 Bit / 512K X 16 Bit CMOS 5.0 Volt-only, Boot Sector Flash Memory |
| A29800TM-70 | 制造商:AMICC 制造商全称:AMIC Technology 功能描述:1024K X 8 Bit / 512K X 16 Bit CMOS 5.0 Volt-only, Boot Sector Flash Memory |
| A29800TM-90 | 制造商:AMICC 制造商全称:AMIC Technology 功能描述:1024K X 8 Bit / 512K X 16 Bit CMOS 5.0 Volt-only, Boot Sector Flash Memory |
| A29800TV-55 | 制造商:AMICC 制造商全称:AMIC Technology 功能描述:1024K X 8 Bit / 512K X 16 Bit CMOS 5.0 Volt-only, Boot Sector Flash Memory |
| A29800TV-70 | 制造商:AMICC 制造商全称:AMIC Technology 功能描述:1024K X 8 Bit / 512K X 16 Bit CMOS 5.0 Volt-only, Boot Sector Flash Memory |
发布紧急采购，3分钟左右您将得到回复。