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参数资料
| 型号： | CAT25020YE-T3 |
| 厂商： | ON SEMICONDUCTOR |
| 元件分类： | PROM |
| 英文描述： | 256 X 8 SPI BUS SERIAL EEPROM, PDSO8 |
| 封装： | GREEN, MO-153, TSSOP-8 |
| 文件页数： | 2/17页 |
| 文件大小： | 152K |
| 代理商： | CAT25020YE-T3 |
CAT25010, CAT25020, CAT25040
Doc. No. MD-1006 Rev. U
10
2008 SCILLC. All rights reserved
Characteristics subject to change without notice
Hold Operation
The HOLD
input can be used to pause communication
between host and CAT25010/20/40. To pause, HOLD
must be taken low while SCK is low (Figure 10).
During the hold condition the device must remain
selected (CS
low). During the pause, the data output
pin (SO) is tri-stated (high impedance) and SI
transitions are ignored. To resume communication,
HOLD
must be taken high while SCK is low.
DESIGN CONSIDERATIONS
The CAT25010/20/40 devices incorporate Power-On
Reset (POR) circuitry which protects the internal logic
against powering up in the wrong state. The device
will power up into Standby mode after VCC exceeds
the POR trigger level and will power down into Reset
mode when VCC drops below the POR trigger level.
This bi-directional POR behavior protects the device
against ‘brown-out’ failure following a temporary loss
of power.
The CAT25010/20/40 device powers up in a write
disable state and in a low power standby mode. A
WREN instruction must be issued prior any writes to
the device.
After power up, the CS
pin must be brought low to
enter a ready state and receive an instruction. After a
successful byte/page write or status register write, the
device goes into a write disable mode. The CS
input
must be set high after the proper number of clock
cycles to start the internal write cycle. Access to the
memory array during an internal write cycle is ignored
and programming is continued. Any invalid op-code
will be ignored and the serial output pin (SO) will
remain in the high impedance state.
Figure 10. HOLD
Timing
Note: Dashed Line = mode (1, 1) - - - - - -
CS
SCK
HOLD
SO
tCD
tHD
tCD
tLZ
tHZ
HIGH IMPEDANCE
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CAT25020YGI | 制造商:Catalyst Semiconductor 功能描述: |
| CAT25020YI | 功能描述:电可擦除可编程只读存储器 (256x8) 2K 2.5-6.0 RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| CAT25020YI-G | 功能描述:电可擦除可编程只读存储器 (256x8) 2K 2.5-5.5 RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| CAT25020YI-GT3 | 功能描述:电可擦除可编程只读存储器 2K-Bit SPI Serial CMOS 电可擦除可编程只读存储器 RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| CAT25020Z | 功能描述:电可擦除可编程只读存储器 (256x8) 2K 2.5-6.0 RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
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