24AA512/24LC512/24FC512
7.0 ACKNOWLEDGE POLLING
Since the device will not acknowledge during a write
cycle, this can be used to determine when the cycle is
complete (this feature can be used to maximize bus
throughput). Once the Stop condition for a Write
command has been issued from the master, the device
initiates the internally timed write cycle. ACK polling
can be initiated immediately. This involves the master
sending a Start condition, followed by the control byte
for a Write command (R/W = 0 ). If the device is still
busy with the write cycle, then no ACK will be returned.
If no ACK is returned, then the Start bit and control byte
must be re-sent. If the cycle is complete, then the
device will return the ACK and the master can then
proceed with the next Read or Write command. See
FIGURE 7-1:
ACKNOWLEDGE POLLING
FLOW
Send
Write Command
Send Stop
Condition to
Initiate Write Cycle
Send Start
Figure 7-1 for flow diagram.
Send Control Byte
with R/W = 0
Did Device
Acknowledge
(ACK = 0 )?
Yes
Next
Operation
No
DS21754M-page 12
? 2010 Microchip Technology Inc.
相关PDF资料
24AA52T-I/MC IC EEPROM 2KBIT 400KHZ 8DFN
24AA64F-I/MS IC SRL EEPROM 8KX8 1.8V 8-MSOP
24AA65/P IC EEPROM 64KBIT 400KHZ 8DIP
24C00T-E/MNY IC EEPROM SER 128BIT 8TDFN
24C01C-I/ST IC EEPROM 1KBIT 400KHZ 8TSSOP
24C02C-I/MC IC EEPROM 2KBIT I2C 8DFN
24C08B-E/P IC EEPROM 8KBIT 100KHZ 8DIP
24FC1026-I/P IC EEPROM 1024KB 1MHZ 8-DIP
相关代理商/技术参数
24AA512-I/ST14G 功能描述:电可擦除可编程只读存储器 64kx8 - 1.8V Lead Free Package 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
24AA512-I/W17K 功能描述:SERIAL EEPROM WAFER 制造商:microchip technology 系列:- 零件状态:在售 存储器类型:非易失 存储器格式:EEPROM 技术:EEPROM 存储容量:512Kb (64K x 8) 时钟频率:400kHz 写周期时间 - 字,页:5ms 访问时间:900ns 存储器接口:I2C 电压 - 电源:1.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C(TA) 标准包装:5,000
24AA512-I/W22K 制造商:Microchip Technology Inc 功能描述:512K, 64K X 8, 1.8V SER EE,WAFER, 0 WAFER WJAR
24AA512-I/WF17K 功能描述:SERIAL EEPROM WAFER 制造商:microchip technology 系列:- 零件状态:在售 存储器类型:非易失 存储器格式:EEPROM 技术:EEPROM 存储容量:512Kb (64K x 8) 时钟频率:400kHz 写周期时间 - 字,页:5ms 访问时间:900ns 存储器接口:I2C 电压 - 电源:1.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C(TA) 标准包装:5,000
24AA512-I/WF22K 功能描述:SERIAL EEPROM WAFER 制造商:microchip technology 系列:- 零件状态:在售 存储器类型:非易失 存储器格式:EEPROM 技术:EEPROM 存储容量:512Kb (64K x 8) 时钟频率:400kHz 写周期时间 - 字,页:5ms 访问时间:900ns 存储器接口:I2C 电压 - 电源:1.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C(TA) 标准包装:5,000
24AA512SC-I/S17K 功能描述:SERIAL EEPROM WAFER 制造商:microchip technology 系列:- 零件状态:在售 存储器类型:非易失 存储器格式:EEPROM 技术:EEPROM 存储容量:512Kb (64K x 8) 时钟频率:400kHz 写周期时间 - 字,页:5ms 访问时间:900ns 存储器接口:I2C 电压 - 电源:1.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C(TA) 标准包装:5,000
24AA512SC-I/S22K 制造商:Microchip Technology Inc 功能描述:512K, 64K X 8, 1.8V SER EE,DIE in WAFFLE PK, 0 DICE WPAC
24AA512SC-I/W17K 功能描述:SERIAL EEPROM WAFER 制造商:microchip technology 系列:- 零件状态:在售 存储器类型:非易失 存储器格式:EEPROM 技术:EEPROM 存储容量:512Kb (64K x 8) 时钟频率:400kHz 写周期时间 - 字,页:5ms 访问时间:900ns 存储器接口:I2C 电压 - 电源:1.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C(TA) 标准包装:5,000