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参数资料
| 型号： | W45B010P |
| 厂商： | WINBOND ELECTRONICS CORP |
| 元件分类： | PROM |
| 英文描述： | 1M X 1 FLASH 2.7V PROM, PQCC32 |
| 封装： | PLASTIC, LCC-32 |
| 文件页数： | 11/16页 |
| 文件大小： | 283K |
| 代理商： | W45B010P |
Preliminary W45B010
- 4 -
Write Protect
The #WP pin provides inadvertent write protection. The #WP pin must be held high for any Erase or
Program operation. The #WP pin is “don’t care” for all other operations. In typical use, the #WP pin is
connected to VSS with a standard pull-down resistor. #WP is then driven high whenever an Erase or
Program operation is required. If the #WP pin is tied to VDD with a pull-up resistor, then all operations
may occur and the write protection feature is disabled. The #WP pin has an internal pull-up and could
remain unconnected when not used.
DEVICE OPERATION INSTRUCTION
BUS CYCLE
1
2
3
4
5
6
7
Operation/Type
Command Address 1
Address
Data
Dummy
Data
Read
FFh
A23
A16
A15
A8
A7
A0
X
Dout
Sector-erase 2
20h
A23
A16
A15
A8
X
Dout
X
Chip-erase
60h
X
Dout
X
Byte-program
10h
A23
A16
A15
A8
A7
A0
Din
X
Software-status
9Fh
Dout
Read Manufacture ID
90h
X
A0 = 0
DAh
Read Device ID 3
90h
X
A0 = 1
91h
Notes:
1. A23
A17 are “Don't Care” for device.
2. A16
A12 are used to determine sector address, A11 A8 are don't care.
3. With A16
A1 = 0, W45B010 Device ID = 91h, is read with A0 = 1.
DEVICE OPERATION TABLE
Operation
SI
SO
#CE1
#WP
#RESET
Read
X
Dout
Low
X
High
Sector-erase
X
Low
High
Chip-erase
X
Low
High
Byte-program
Din
X
Low
High
Software-status
X
Dout
Low
X
High
Reset2
X
Low
Read Manufacture ID
X
Dout
Low
X
High
Read Device ID
X
Dout
Low
X
High
Notes:
1. A high to low transition on #CE will be required to start any device operation except for Reset.
2. The #RESET low will return the device to standby and terminate any Erase or Program operation in progress.
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