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参数资料
| 型号： | AT25080A-10PI-2.7 |
| 厂商： | ATMEL CORP |
| 元件分类： | PROM |
| 英文描述： | SPI Serial EEPROMs |
| 中文描述： | 1K X 8 SPI BUS SERIAL EEPROM, PDIP8 |
| 封装： | 0.300 INCH, PLASTIC, MS-001BA, DIP-8 |
| 文件页数： | 20/23页 |
| 文件大小： | 451K |
| 代理商： | AT25080A-10PI-2.7 |
6
AT25080A/160A/320A/640A
3347I–SEEPR–1/05
Serial Interface
Description
MASTER: The device that generates the serial clock.
SL AVE: B e c a u s e t h e S e r i al C l oc k pi n ( S CK ) i s al w a y s an i n p u t , t h e
AT25080A/160A/320A/640A always operates as a slave.
TRANSMITTER/RECEIVER: The AT25080A/160A/320A/640A has separate pins designated
for data transmission (SO) and reception (SI).
MSB: The Most Significant Bit (MSB) is the first bit transmitted and received.
SERIAL OP-CODE: After the device is selected with CS going low, the first byte will be
received. This byte contains the op-code that defines the operations to be performed.
INVALID OP-CODE: If an invalid op-code is received, no data will be shifted into the
AT25080A/160A/320A/640A, and the serial output pin (SO) will remain in a high impedance
state unti l the falling edge of CS is detected again. T his will reinitia lize the serial
communication.
CHIP SELECT: The AT25080A/160A/320A/640A is selected when the CS pin is low. When
the device is not selected, data will not be accepted via the SI pin, and the serial output pin
(SO) will remain in a high impedance state.
HO L D : T h e H O LD pi n i s us e d i n c onj unc t i o n wi t h t h e CS pi n t o s e l e c t t h e
AT25080A/160A/320A/640A. When the device is selected and a serial sequence is underway,
HOLD can be used to pause the serial communication with the master device without resetting
the serial sequence. To pause, the HOLD pin must be brought low while the SCK pin is low.
To resume serial communication, the HOLD pin is brought high while the SCK pin is low (SCK
may still toggle during HOLD). Inputs to the SI pin will be ignored while the SO pin is in the
high impedance state.
WRITE PROTECT: The write protect pin (WP) will allow normal read/write operations when
held high. When the WP pin is brought low and WPEN bit is “1”, all write operations to the sta-
tus register are inhibited. WP going low while CS is still low will interrupt a write to the status
register. If the internal write cycle has already been initiated, WP going low will have no effect
on any write operation to the status register. The WP pin function is blocked when the WPEN
bi t i n t h e s t a t u s re gi s t e r i s “0 ”. T h i s w i l l al l o w t he us e r t o i n s t al l t h e
AT25080A/160A/320A/640A in a system with the WP pin tied to ground and still be able to
write to the status register. All WP pin functions are enabled when the WPEN bit is set to “1”.
相关PDF资料 |
PDF描述 |
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| AT25080A-10TI-1.8 | SPI Serial EEPROMs |
| AT25080A-10TI-2.7 | SPI Serial EEPROMs |
| AT25080A-10TU-2.7 | SPI Serial EEPROMs |
| AT27C080-10PC | 8-Megabit 1M x 8 UV Erasable CMOS EPROM |
| AT27C080-10PI | 8-Megabit 1M x 8 UV Erasable CMOS EPROM |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT25080A-10PQ-2.7 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:SPI Serial EEPROMs |
| AT25080A-10PU-1.8 | 功能描述:电可擦除可编程只读存储器 1.8V 27 MIL - 10MS 1.8V 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 |
| AT25080A-10PU-2.7 | 功能描述:电可擦除可编程只读存储器 1.8V 27 MIL - 10MS 2.7V 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 |
| AT25080A-10TI-1.8 | 功能描述:IC EEPROM 8KBIT 20MHZ 8TSSOP RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:96 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:16M（2M x 8，1M x 16） 速度:70ns 接口:并联 电源电压:2.65 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:48-TFSOP（0.724"，18.40mm 宽） 供应商设备封装:48-TSOP 包装:托盘 |
| AT25080A-10TI-2.7 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:SPI Serial EEPROMs |
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