参数资料
型号: 24LC64T-E/OT
厂商: Microchip Technology
文件页数: 10/44页
文件大小: 0K
描述: IC EEPROM 64KBIT 400KHZ SOT23-5
标准包装: 3,000
格式 - 存储器: EEPROMs - 串行
存储器类型: EEPROM
存储容量: 64K (8K x 8)
速度: 400kHz
接口: I²C,2 线串口
电源电压: 2.5 V ~ 5.5 V
工作温度: -40°C ~ 125°C
封装/外壳: SC-74A,SOT-753
供应商设备封装: SOT-23-5
包装: 带卷 (TR)
24AA64/24LC64/24FC64
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 and ACK polling
can then be initiated immediately. This involves the
FIGURE 7-1:
ACKNOWLEDGE POLLING
FLOW
Send
Write Command
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, 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 Read or Write command. See Figure 7-1 for a
Send Stop
Condition to
Initiate Write Cycle
Send Start
flow diagram of this operation.
Send Control Byte
with R/W = 0
Did Device
Acknowledge
(ACK = 0 )?
Yes
Next
Operation
No
DS21189S-page 10
? 1997-2012 Microchip Technology Inc.
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