LC723732 查看數據表（PDF） - SANYO -> Panasonic
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LC723732 Datasheet PDF : 14 Pages
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Test Circuits
LC723732/40/48/56/64
Note: Ports PB through PG, and PJ through PT are all left open.
However, ports PB through PG, PK through PT, EO3, and
SUBPD are left open in output mode.
Figure 1 IDD2 in Halt Mode
Note: Ports PA through PT are all left open.
Figure 2 IDD3 and IDD4 in Backup Mode
Pin Descriptions
Pin No. Symbol
I/O
Function
Equivalent circuit
32
PA0
Dedicated input ports.
31
PA1
These ports are designed with a low threshold voltage.
I The pull-down resistors for all four pins are set up together with an IOS1 instruction.
30
PA2
The pull-down resistors cannot be set individually.
29
PA3
Input is disabled in backup mode.
28
PB0
General-purpose I/O ports
27
26
PB1
PB2
I/O
The mode (input or output) is set using the IOS2 instruction.
Input is disabled and the pins go to the high-impedance state in backup mode.
25
PB3
These ports are set up as general-purpose input ports after a power on reset.
24
PC0
General-purpose I/O ports (high-voltage input and output)
The mode (input or output) is set using the IOS2 instruction.
23
22
PC1
PC2
I/O
External pull-up resistors are required since the output circuits are open drain
circuits.
21
PC3
Input is disabled and the pins go to the high-impedance state in backup mode.
These ports are set up as general-purpose input ports after a power on reset.
General-purpose I/O and external interrupt shared function ports
The input formats are Schmitt inputs.
The external interrupt function is enabled when the external interrupt enable flag is
20
PD0/INT4
set.
• When used as general-purpose I/O ports:
19
18
PD1/INT5
PD2
I/O
The mode (input or output) is set in 1-bit units using the IOS2 instruction.
• When used as external interrupt pins:
17
PD3
The external interrupt functions are enabled by setting the corresponding external
interrupt enable flag (INT4EN or INT5EN). Here, the pins must be set to input
mode in advance.
Input is disabled and the pins go to the high-impedance state in backup mode.
These ports are set up as general-purpose input ports after a power on reset.
Continued on next page.
No. 5931-7/14
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