参数资料
型号: 24AA025T-I/OT
厂商: Microchip Technology
文件页数: 9/30页
文件大小: 0K
描述: IC EEPROM 2KBIT 400KHZ SOT23-6
标准包装: 1
格式 - 存储器: EEPROMs - 串行
存储器类型: EEPROM
存储容量: 2K (256 x 8)
速度: 100kHz,400kHz
接口: I²C,2 线串口
电源电压: 1.7 V ~ 5.5 V
工作温度: -40°C ~ 85°C
封装/外壳: SOT-23-6
供应商设备封装: SOT-23-6
包装: 标准包装
产品目录页面: 1445 (CN2011-ZH PDF)
其它名称: 24AA025T-I/OTDKR
24AA024/24LC024/24AA025/24LC025
7.0
ACKNOWLEDGE POLLING
FIGURE 7-1:
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, with ACK
polling being 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, no ACK will be returned. If no
ACK is returned, the Start bit and control byte must be
re-sent. If the cycle is complete, the device will return
the ACK and the master can then proceed with the next
FLOW
Send
Write Command
Send Stop
Condition to
Initiate Write Cycle
Send Start
Read or Write command. See Figure 7-1 for a flow
diagram of this operation.
Send Control Byte
with R/W = 0
? 2009 Microchip Technology Inc.
Did Device
Acknowledge
(ACK = 0 )?
Yes
Next
Operation
No
DS21210N-page 9
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