W741C260 Datasheet, PDF (3/92 Pages) Winbond – 4-BIT MICROCONTROLLER

W741C260
• MFP output pin
− Output is software selectable as modulating or nonmodulating frequency
− Works as frequency output specified by Timer 1
• Two built-in 14-bit clock frequency divider circuit (divider 0 and divider 1)
• 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: includes an auto-reload function; and one of two internal clock frequencies (FOSC or
FOSC/64) can be selected or falling edge of pin RC.0 can be selected (output through MFP pin)
• Built-in 18/14-bit watchdog timer selectable for system reset
• Powerful instruction set: 118 instructions
• 8-level subroutine (include interrupt) nesting
• Up to 1 µS instruction cycle (with 4 MHz operating frequency)
• Packaged in 80-pin QFP
PIN CONFIGURATION
X
X
SSSS
XO
XO
VVVEEEE
RRM /
IU V IU
D D D D D GGGG
A
A
F
N
R
E
NNT
N
DNNT
NNHHDD
D3
3
2
2
1 0 P CS C1 1 C DC2 2 CC1 2 1 2 3 1 0 9 8
RA2
RA3
RB0
RB1
RB2
RB3
RC0
RC1
RC2
RC3
RD0
RD1
RD2
RD3
RE0
RE1
63
64 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41
65
40
66
39
67
38
68
37
69
36
70
35
71
34
72
33
73
32
74
31
75
30
76
29
77
28
78
27
79
26
80
25
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
NNRRV NNCCCCS S S S S S S S S S S S N
CCE E S CCOOOOE E E E E E E E E E E E C
23S
MMMMG G G G G G G G G G G G
3210012345678911
01
Publication Release Date: March 1998
-3-
Revision A3