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参数资料
| 型号： | LC723661 |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP80 |
| 封装： | 14 X 20 MM, QIP-80 |
| 文件页数： | 3/12页 |
| 文件大小： | 215K |
| 代理商： | LC723661 |
LC723661, 723662, 723663
No.0460-11/12
Continued from preceding page.
Pin name
Pin No.
I/O
Pin explanation
Equivalent circuit
PH0/ADI0
PH1/ADI1
PI0/ADI4
PI1/ADI5
PI2/ADI6
PI3/ADI7
67
66
64
63
62
61
I
General-purpose input and A/D converter input shared function ports.
The IOS1 instruction is used to switch between the general-purpose
input and the A/D converter input functions.
When used as general-purpose input ports :
The general-purpose input port function is set up with the IOS1
instruction. (In bit units)
When used as A/D converter input pins :
The A/D converter input port function is set up with the IOS1
instruction. (In bit units)
The pin whose voltage is to be converted is specified with the IOS1
instruction, and the conversion is started with UCC instruction.
Note : Since input is disabled for ports specified for the ADI function,
executing an input instruction for such a port will always return
a low level.
Input is disabled in Backup mode.
These ports are set up as general-purpose input ports after a power
on reset.
PJ0
PJ1
60
59
O
General-purpose output ports (high-voltage output)
Since these are open-drain output circuits, external pull-up resistors
are required.
The internal transistors are turned off (resulting in a high-level output)
in Backup mode and after a power on reset.
PK0/INT0
PK1/INT1
58
57
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 IOS1
instruction.
When used as external interrupt pins :
The external interrupt functions are enabled by setting the
corresponding external interrupt enable flag (INT0EN through
INT3EN). 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.
PL0 to 3
PM0 to 3
56 to 53
52 to 49
I/O
General-purpose I/O ports
The mode is switched between input and output with the IOS
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.
PN0/BEEP
PN1
PN2
PN3
48
47
46
45
I/O
General-purpose I/O port and beep tone output shared function ports.
The IOS2 instruction is used to switch between the general-purpose
I/O port and the beep tone output functions.
When used as general-purpose I/O ports:
The general-purpose I/O port function is set up with the IOS2
instruction.
(Pins PN1 through PN3 are dedicated general-purpose output pins.)
When used as the beep tone output pin:
The beep tone output function is set up with the IOS2 instruction.
The frequency is set up with the BEEP instruction.
When this pin is used as the beep tone output pin, executing an
output instruction for this pin only sets the internal latch and has no
influence on the output.
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.
ILC05543
BACK UP
ILC05541
BACK UP
To the
A/D converter input
ILC05542
BACK UP
ILC05544
BACK UP
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