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LC723732 Datasheet(PDF) 7 Page - Sanyo Semicon Device

No. de Pieza. LC723732
Descripción  ETR Microcontrollers
Descarga  14 Pages
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Fabricante  SANYO [Sanyo Semicon Device]
Página de inicio  https://www.sanyo-av.com/us/
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LC723732 Datasheet(HTML) 7 Page - Sanyo Semicon Device

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Test Circuits
No. 5931-7/14
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.
Note: Ports PA through PT are all left open.
Figure 1 IDD2 in Halt Mode
Figure 2 IDD3 and IDD4 in Backup Mode
Pin Descriptions
Pin No.
Symbol
I/O
Function
Equivalent circuit
Dedicated input ports.
These ports are designed with a low threshold voltage.
The pull-down resistors for all four pins are set up together with an IOS1 instruction.
The pull-down resistors cannot be set individually.
Input is disabled in backup mode.
32
31
30
29
PA0
PA1
PA2
PA3
I
General-purpose I/O ports
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.
These ports are set up as general-purpose input ports after a power on reset.
28
27
26
25
PB0
PB1
PB2
PB3
I/O
General-purpose I/O ports (high-voltage input and output)
The mode (input or output) is set using the IOS2 instruction.
External pull-up resistors are required since the output circuits are open drain
circuits.
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.
24
23
22
21
PC0
PC1
PC2
PC3
I/O
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
set.
• When used as general-purpose I/O ports:
The mode (input or output) is set in 1-bit units using the IOS2 instruction.
• When used as external interrupt pins:
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.
20
19
18
17
PD0/INT4
PD1/INT5
PD2
PD3
I/O
Continued on next page.


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