LC72347W 查看數據表（PDF） - SANYO -> Panasonic
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LC72347W Datasheet PDF : 12 Pages
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LC72346W, 72347W
Continued from preceding page.
Pin No.
Pin
23
PF0/ADI0
22
PF1/ADI1
21
PF2/ADI3
33
PG3/S20
34
PG2/S19
35
PG1/S18
36
PG0/S17
37
PH3/S16
38
PH2/S15
39
PH1/S14
40
PH0/S13
*2
I/O
Function
General-purpose input and A/D converter input shared function ports. The IOS
instruction (Pwn = FH) is used to switch between the general-purpose input and A/D
converter port functions. The general-purpose input and A/D converter port functions
can be switched in a units, with 0 specifying general-purpose input, and 1 specifying
the A/D converter input function. To select the A/D converter function, set up the A/D
converter pin with an IOS instruction with Pwn set to 1. The A/D converter is started
with the UCC instruction (b3 = 1, b2 = 1). The ADCE flag is set when the conversion
I completes. The INR instruction is used to read in the data.
*: If an input instruction is executed for one of these pins which is set up for analog
input, the read in data will be at the low level since CMOS input is disabled. In
backup mode these pins go to the input disabled high-impedance state. These
ports are set to their general-purpose input port function after a reset. The A/D
converter is a 6-bit successive approximation type converter, and features a
conversion time of 1.28 ms. Note that the full-scale A/D converter voltage (3FH) is
(63/96) VDD.
I/O circuit
CMOS input/analog input
LCD driver segment output and general-purpose I/O shared function ports.
The IOS instruction is used for switching between the segment output and general-
purpose I/O functions and between input and output for the general-purpose I/O port
function.
• When used as segment output ports
The general-purpose I/O port function is selected with the IOS instruction (Pwn = 8).
b0 = S17 to 20/PG0 to 3 (0: Segment output, 1: PG0 to 3)
The general-purpose I/O port function is selected with the IOS instruction (Pwn = 9).
b0 = S13 to 16/PH0 to 3 (0: Segment output, 1: PH0 to 3)
O
• When used as general-purpose I/O ports
The IOS instruction (Pwn = 6,7) is used to select input or output. Note that the
mode can be set in a bit units.
b0 = PG0
b1 = PG1
b2 = PG2
b3 = PG3
0: Input
1: Output
b0 = PH0
b1 = PH1
b2 = PH2
b3 = PH3
0: Input
1: Output
In backup mode, these pins go to the input disabled high-impedance state if set up as
general-purpose outputs, and are fixed at the low level if set up as segment outputs.
These ports are set up as segment outputs after a reset.
Although the general-purpose port/LCD port setting is a mask option, the IOS
instruction must be used as described above to set up the port function.
CMOS push-pull
41 to
52
S12 to S1
LCD driver segment output pins.
A 1/4-duty 1/2-bias drive technique is used.
O The frame frequency is 75 Hz.
In backup mode, these outputs are fixed at the low level.
After a reset, these outputs are fixed at the low level.
CMOS push-pull
LCD driver common output pins.
53
COM4
A 1/4-duty 1/2-bias drive technique is used.
54
COM3
O The frame frequency is 75 Hz.
55
COM2
In backup mode, these outputs are fixed at the low level.
56
COM1
After a reset, these outputs are fixed at the low level.
Continued on next page.
No. 6651-8/12
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