参数资料
型号: LE25U20AMB-AH
厂商: ON Semiconductor
文件页数: 7/21页
文件大小: 0K
描述: IC MEM 2MBIT SERIAL FLASH 8SOP
标准包装: 2,000
格式 - 存储器: 闪存
存储器类型: FLASH
存储容量: 2M (256K x 8)
速度: 30MHz
接口: SPI 串行
电源电压: 2.3 V ~ 3.6 V
工作温度: -40°C ~ 85°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOP
包装: 带卷 (TR)
LE25U20AMB
2. Status Registers
The status registers hold the operating and setting statuses inside the device, and this information can be read (status
register read) and the protect information can be rewritten (status register write). There are 8 bits in total, and "Table 3
Status registers" gives the significance of each bit.
Table 3 Status Registers
Bit
Bit0
Name
RDY
Logic
0
Function
Ready
Power-on Time Information
0
1
Erase/Program
Bit1
WEN
0
Write disabled
0
1
Write enabled
Bit2
BP0
0
1
Block protect information
Nonvolatile information
Bit3
BP1
0
See status register descriptions on BP0 and BP1.
Nonvolatile information
1
Bit4
0
Bit5
Bit6
Reserved bits
0
0
Bit7
SRWP
0
Status register write enabled
Nonvolatile information
1
Status register write disabled
2-1. Status Register Read
The contents of the status registers can be read using the status register read command. This command can be executed
even during the following operations.
? Small sector erase, sector erase, chip erase
? Page program
? Status register write
"Figure 6 Status Register Read" shows the timing waveforms of status register read. Consisting only of the first bus
cycle, the status register command outputs the contents of the status registers synchronized to the falling edge of the
clock (SCK) with which the eighth bit of (05h) has been input. In terms of the output sequence, SRWP (bit 7) is the first
to be output, and each time one clock is input, all the other bits up to RDY (bit 0) are output in sequence, synchronized
to the falling clock edge. If the clock input is continued after RDY (bit 0) has been output, the data is output by
returning to the bit (SRWP) that was first output, after which the output is repeated for as long as the clock input is
continued. The data can be read by the status register read command at any time (even during a program or erase cycle).
Figure 6 Status Register Read
CS
SCK
Mode 3
Mode 0
0 1 2 3 4 5 6 7 8
15 16
23
8CLK
SI
05h
SO
High Impedance
DATA
MSB
DATA
MSB
DATA
MSB
No.A2097-7/21
相关PDF资料
PDF描述
LFDAS12XSIT HARDWARE MC9S12XS 112-PIN
LFXP10E-L-EV BOARD EVAL LATTICEXP10E STD
LH28F008SCHT-TE IC FLASH 8MBIT 85NS 40TSOP
LH28F160S3HNS-TV IC FLASH 16MBIT 100NS 56SSOP
LH28F160S5HNS-S1 IC FLASH 16MBIT 70NS 56SSOP
相关代理商/技术参数
参数描述
LE25U20AMBM02-AH 功能描述:闪存 RoHS:否 制造商:ON Semiconductor 数据总线宽度:1 bit 存储类型:Flash 存储容量:2 MB 结构:256 K x 8 定时类型: 接口类型:SPI 访问时间: 电源电压-最大:3.6 V 电源电压-最小:2.3 V 最大工作电流:15 mA 工作温度:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel
LE25U40CFQ-AH 制造商:ON Semiconductor 功能描述:REEL / S-FLASH MEMORY(4M)
LE25U40CMC 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:4M-bit (512K??8) Serial Flash Memory
LE25U40CMC-AH 功能描述:闪存 S-FLASH MEMORY(4M) RoHS:否 制造商:ON Semiconductor 数据总线宽度:1 bit 存储类型:Flash 存储容量:2 MB 结构:256 K x 8 定时类型: 接口类型:SPI 访问时间: 电源电压-最大:3.6 V 电源电压-最小:2.3 V 最大工作电流:15 mA 工作温度:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel
LE25U40CMCQ00-AH 制造商:ON Semiconductor 功能描述:Flash S-FLASH MEMORY(4M)