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參數資料
| 型號： | LC72F3781 |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP100 |
| 封裝： | 14 X 20 MM, QIP-100 |
| 文件頁數： | 5/17頁 |
| 文件大小： | 127K |
| 代理商： | LC72F3781 |
LC72F3781
No.0459-13/17
Continued from preceding page.
Pin name
Pin No.
I/O
Pin explanation
Equivalent circuit
PL0 to 3
PM0 to 3
68 to 61
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
60
59
58
57
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.
PO0 to 3
PP0 to 3
56 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.
PQ0 to 3
PR0 to 3
PS0 to 3
PT0 to 3
48 to 41
38 to 33
I/O
General-purpose I/O ports.
The mode is switched between input and output with the IOS
instruction, and data is input with the INR instruction and output with
the OUTR instruction.
The SPB, RPB, TPT, and TPF instruction cannot be used with these
ports.
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.
TEST1
TEST2
99
2
LSI test pins.
These pins must be connected to GND.
ILC05544
BACK UP
ILC05544
BACK UP
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