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參數資料
| 型號： | LC723401W-XXXX |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | QIP-64 |
| 文件頁數： | 9/14頁 |
| 文件大小： | 81K |
| 代理商： | LC723401W-XXXX |
LC723401W-XXXX
No.7850-4/14
Continued from preceding page.
No.
Pin name
Designation
I / O
Function description
Logical
Initial
Remarks
“High”
“Low”
state
56
PA0
KEYIN0
IN
Key input
Key
Pull-down enabled
pressed
not pressed
57
PB3
KEYOUT3
OUT
Key output
Scan
Standby
“Low”
58
PB2
KEYOUT2
OUT
Key output
Scan
Standby
“Low”
59
PB1
KEYOUT1
OUT
Key output
Scan
Standby
“Low”
60
PB0
KEYOUT0
OUT
Key output
Scan
Standby
“Low”
61
RES
IN
Reset input
62
VDD
+3V power supply
63
VSS
Ground pin
64
XIN
IN
Quartz input
*1 : PD3 (AREA 1), PD2 (AREA 0) inputs
PD3
PD2
Destination area
Hi
Low
USA
Low
Hi
Europe
Low
East Europe
Hi
Japan
*2 : PD1 (TAPE) input
Tuner off changes the following functions
Condition
PD1
State (display)
Tuner off
Hi
Tape mode (“TAPE” displayed)
(TAPE input)
Low
Power off (clock display)
*3 : PF1 / ADI1 (PWR CHECK 3) input
A/D value and operation status are shown below. A / D is read only at power-on.
Input voltage
Detection method
P-FUL
P-MID
P-LOW
Operation state
A / D input value
to 2.46V
PF1(A / D)
Lit
Normal
00h to 0Eh
2.45V to 2.10V
PF1(A / D)
Out
Lit
Normal
0Fh to 10h
2.09V to 1.81V
PF1(A / D)
Out
Flashing
Normal
11h to 15h
1.80V to
PF1(A / D)
Out
Transition to
16h to 1Fh
radio off
PF2
Out
Backup mode
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