参数资料
型号: SST25VF020-20-4I-QAE
厂商: Microchip Technology
文件页数: 11/27页
文件大小: 0K
描述: IC FLASH SER 2MB 20MHZ SPI 8WSON
标准包装: 98
系列: SST25
格式 - 存储器: 闪存
存储器类型: FLASH
存储容量: 2M (256K x 8)
速度: 20MHz
接口: SPI 串行
电源电压: 2.7 V ~ 3.6 V
工作温度: -40°C ~ 85°C
封装/外壳: 8-WDFN 裸露焊盘
供应商设备封装: 8-WSON
包装: 管件
2 Mbit SPI Serial Flash
A Microchip Technology Company
SST25VF020
Not Recommended for New Designs
Byte-Program
The Byte-Program instruction programs the bits in the selected byte to the desired data. The selected
byte must be in the erased state (FFH) when initiating a Program operation. A Byte-Program instruction
applied to a protected memory area will be ignored.
Prior to any Write operation, the Write-Enable (WREN) instruction must be executed. CE# must remain
active low for the duration of the Byte-Program instruction. The Byte-Program instruction is initiated by
executing an 8-bit command, 02H, followed by address bits [A 23 -A 0 ]. Following the address, the data is
input in order from MSB (bit 7) to LSB (bit 0). CE# must be driven high before the instruction is exe-
cuted. The user may poll the Busy bit in the software status register or wait T BP for the completion of
the internal self-timed Byte-Program operation. See Figure 6 for the Byte-Program sequence.
CE#
MODE 3
0 1 2 3 4 5 6 7 8
15 16
23 24
31 32
39
SCK
MODE 0
SI
MSB
02
ADD.
MSB
ADD.
ADD.
D IN
MSB
LSB
SO
HIGH IMPEDANCE
1231 F05.1
Figure 6: Byte-Program Sequence
?2011 Silicon Storage Technology, Inc.
11
DS25078A
11/11
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