參數資料
型號: BM29F400T-90TC
英文描述: x8/x16 Flash EEPROM
中文描述: x8/x16閃存EEPROM
文件頁數: 26/37頁
文件大小: 265K
代理商: BM29F400T-90TC
BRIGHT
Microelectronics
Inc.
BM29F400T/BM29F400B
- 26 -
Switching Waveforms, continued
Address
CE
OE
WE
Data
t
WC
5555H
PA
PA
Data Polling
A0H
PD
DQ7
D
t
AH
t
AS
t
GHWL
t
WP
t
WPH
t
CS
t
DS
t
WHWH1
t
DH
OUT
5.0V
V
CC
GND
Figure 9. AC Waveforms Program Operations
Notes:
1. PA is address of the memory location to be programmed.
2. PD is data to be programmed at BYTE address.
3.
DQ7
is the output of the complement of the data written to the device.
4. D
OUT
is the output of the data written to the device.
5. Figure indicates last two bus cycles of four bus cycle sequence.
6. These waveforms are for 16-bit mode.
Address
CE
OE
WE
Data
5.0V
V
CC
GND
t
VCS
t
DS
t
DH
t
CS
t
WPH
t
WP
t
GHWL
t
AS
t
AH
5555H
5555H
2AAAH
5555H
2AAAH
SA
AAH
55H
80H
AAH
55H
10H/30H
Figure 10. AC Waveforms Chip/Sector Erase Operations
Notes:
1. SA is the sector address for Sector Erase. Address = X = Don't Care for Chip Erase.
2. These waveforms are for 16-bit mode.
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