W742C810 データシートの表示（PDF） - Winbond
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W742C810 Datasheet PDF : 42 Pages
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Preliminary W742C810
• DTMF output pin
− Output is one channel Dual Tone Multi-frequency signal for dialling
• Two built-in 14-bit frequency dividers
− Divider0: the clock source is the output of the main oscillator
− Divider1: the clock source is the output of the sub-oscillator
• Two built-in 8-bit programmable countdown timers
− Timer 0: one of two internal clock frequencies (FOSC/4 or FOSC/1024) can be selected
− Timer 1: with auto-reload function, and one of three internal clock frequencies (FOSC, FOSC/64 or
Fs) can be selected by MR1 register; the specified frequency can be delivered to MFP pin
• Built-in 18/15-bit watchdog timer selectable for system reset; enable the watch dog timer or not is
determined by code option
• Powerful instruction set: 131 instructions
• 8-level subroutine (include interrupt) nesting
3. PIN CONFIGURATION
X
X
SSSSS S S
DXO XO
VV C C CC E EE EE E E
R T I U V I U D DDD O O OO GGGGGG G
N N N N E M N T DN T H H DDMMMM 3 3 3 3 3 3 3 N N N N
CCCCS F 1 1 D2 2 1 2 1 2 0 1 2 3 9 8 7 6 5 4 3 CCCC
NC
MFP
RA0
RA1
RA2
RA3
RB0
RB1
RB2
RB3
RC0
RC1
RC2
RC3
RD0
RD1
RD2
RD3
RE0
NC
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
81
50
82
49
83
48
84
47
85
46
86
45
87
44
88
43
89
42
90
41
91
40
92
39
93
38
94
37
95
36
96
35
97
34
98
33
99
32
100
31
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
NC
SEG32
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
NNN NR RRR R RR VS S SS S SSS S S SS S SNNN N
CCC CE EE F F FF SE E EE E EEE E E EE E ECCC C
1 2 3 0 1 2 3 S G G GG G GG G G G GG G G
0 1 23 4 567 8 9 11 1 1
01 2 3
-4-
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