- 您现在的位置：买卖IC网 > Sheet目录312 > AT25640T1-10TI-2.7 (Atmel)IC EEPROM 64KBIT 3MHZ 14TSSOP
Functional
Description
The AT25080/160/320/640 is designed to interface directly with the synchronous serial periph-
eral interface (SPI) of the 6805 and 68HC11 series of microcontrollers.
The AT25080/160/320/640 utilizes an 8-bit instruction register. The list of instructions and their
operation codes are contained in Table 1. All instructions, addresses, and data are transferred
with the MSB first and start with a high-to-low CS transition.
Table 1. Instruction Set for the AT25080/160/320/640
Instruction Name
WREN
WRDI
RDSR
WRSR
READ
WRITE
Instruction Format
0000 X110
0000 X100
0000 X101
0000 X001
0000 X011
0000 X010
Operation
Set Write Enable Latch
Reset Write Enable Latch
Read Status Register
Write Status Register
Read Data from Memory Array
Write Data to Memory Array
WRITE ENABLE (WREN): The device will power-up in the write disable state when V CC is
applied. All programming instructions must therefore be preceded by a Write Enable
instruction.
WRITE DISABLE (WRDI): To protect the device against inadvertent writes, the Write Disable
instruction disables all programming modes. The WRDI instruction is independent of the sta-
tus of the WP pin.
READ STATUS REGISTER (RDSR): The Read Status Register instruction provides access to
the status register. The READY/BUSY and Write Enable status of the device can be deter-
mined by the RDSR instruction. Similarly, the Block Write Protection bits indicate the extent of
protection employed. These bits are set by using the WRSR instruction.
Table 2. Status Register Format
Bit 7
WPEN
Bit 6
X
Bit 5
X
Bit 4
X
Bit 3
BP1
Bit 2
BP0
Bit 1
WEN
Bit 0
RDY
Table 3. Read Status Register Bit Definition
Bit
Bit 0 (RDY)
Bit 1 (WEN)
Bit 2 (BP0)
Bit 3 (BP1)
Definition
Bit 0 = 0 (RDY) indicates the device is READY. Bit 0 = 1 indicates the write cycle is
in progress.
Bit 1= 0 indicates the device is not WRITE ENABLED. Bit 1 = 1 indicates the
device is WRITE ENABLED.
See Table 4 on page 9.
See Table 4 on page 9.
Bits 4 - 6 are 0s when device is not in an internal write cycle.
Bit 7 (WPEN)
See Table 5 on page 9.
Bits 0 - 7 are 1s during an internal write cycle.
8
AT25080/160/320/640
0675M–SEEPR–9/03
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
AT25DF321-SU
IC FLASH 32MBIT 70MHZ 8SOIC
AT25F1024AN-10SU-2.7
IC FLASH 1MBIT 33MHZ 8SOIC
AT25F2048N-10SU-2.7
IC FLASH 2MBIT 33MHZ 8SOIC
AT25F4096W-10SU-2.7
IC FLASH 4MBIT 33MHZ 8SOIC
AT25HP512W2-10SI-2.7 SL383
IC EEPROM 512KBIT 10MHZ 16SOIC
AT26DF081A-SSU
IC FLASH 8MBIT 70MHZ 8SOIC
AT26DF161-SU
IC FLASH 16MBIT 66MHZ 8SOIC
AT26DF161A-MU
IC FLASH 16MBIT 70MHZ 8QFN
相关代理商/技术参数
AT25640T2-10TC
制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:SPI Serial E2PROMs
AT25640T2-10TC-1.8
制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:SPI Serial EEPROMs
AT25640T2-10TC-2.7
制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:SPI Serial EEPROMs
AT25640T2-10TI
制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:SPI Serial EEPROMs
AT25640T2-10TI-1.8
功能描述:IC EEPROM 64KBIT 3MHZ 20TSSOP RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:32 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:1M (128K x 8) 速度:120ns 接口:并联 电源电压:2.7 V ~ 3.6 V 工作温度:0°C ~ 70°C 封装/外壳:32-LCC（J 形引线） 供应商设备封装:32-PLCC 包装:管件 其它名称:AT49BV00112JC
AT25640T2-10TI-2.7
功能描述:IC EEPROM 64KBIT 3MHZ 20TSSOP RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:32 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:1M (128K x 8) 速度:120ns 接口:并联 电源电压:2.7 V ~ 3.6 V 工作温度:0°C ~ 70°C 封装/外壳:32-LCC（J 形引线） 供应商设备封装:32-PLCC 包装:管件 其它名称:AT49BV00112JC
AT25640W-10SC-1.8
功能描述:IC EEPROM 64KBIT 3MHZ 8SOIC RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:378 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:8M（1M x 8，512K x 16） 速度:110ns 接口:并联 电源电压:2.7 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:48-CBGA 供应商设备封装:48-CBGA（7x7） 包装:托盘
AT25640W-10SI-2.7
功能描述:IC EEPROM 64KBIT 3MHZ 8SOIC 制造商:microchip technology 系列:- 包装:管件 零件状态:停產 存储器类型:非易失 存储器格式:EEPROM 技术:EEPROM 存储容量:64Kb （8K x 8） 时钟频率:3MHz 写周期时间 - 字，页:5ms 存储器接口:SPI 电压 - 电源:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C（TA） 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商器件封装:8-SOIC 基本零件编号:AT25640 标准包装:94