参数资料
型号: 24AA32A/SN
厂商: Microchip Technology
文件页数: 10/44页
文件大小: 0K
描述: IC EEPROM 32KBIT 400KHZ 8SOIC
标准包装: 100
格式 - 存储器: EEPROMs - 串行
存储器类型: EEPROM
存储容量: 32K (4K 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: 0°C ~ 70°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOICN
包装: 管件
24AA32A/24LC32A
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 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
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
DS21713M-page 10
? 2002-2012 Microchip Technology Inc.
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