参数资料
型号: 73S8009CN-32IMR/F
厂商: MAXIM INTEGRATED PRODUCTS INC
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, QCC32
封装: 5 X 5 MM, ROHS COMPLIANT, QFN-32
文件页数: 15/30页
文件大小: 349K
代理商: 73S8009CN-32IMR/F
73S8009CN Data Sheet
DS_8009CN_026
22
Rev. 1.4
3.9
I/O Circuitry and Timing
The states of the I/O, AUX1, and AUX2 pins are low after power on reset and they are in high when the
activation sequencer turns on the I/O reception state. See the Activation and De-activation Sequence
section for more details on when the I/O reception is enabled. The states of I/OUC, AUX1UC, and
AUX2UC are high after power on reset.
Within a card session and when the I/O reception state is turned on, the first I/O line on which a falling
edge is detected becomes the input I/O line and the other becomes the output I/O line. When the input
I/O line rising edge is detected, then both I/O lines return to their neutral state. Figure 6 shows the state
diagram of how the I/O and I/OUC lines are managed to become input or output.
Neutral
State
I/OUC
in
I/O
reception
I/OICC
in
No
Yes
No
Yes
No
Yes
I/O
&
not I/OUC
I/OUC
&
not I/O
I/OUC
I/O
yes
Figure 9: I/O and I/OUC State Diagram
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