EM78811
8-BIT MICRO-CONTROLLER FOR TELECOM PRODUCT
APPLICATION
1. adjunct units
2. answering machines
3. feature phones
PIN ASSIGNMENTS
SEG41
80
1
2
AVSS
DTMF
PLLC
RINGTIME
RDET1
RING
TIP
SEG40
79
SEG39
78
3
SEG38
4
77
SEG37
76
5
SEG36
6
75
RESET
74
7
P7.7
8
NC
73
P7.6
72
9
XIN
P7.5
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
XOUT
AVDD
SEG0
71
P7.4
70
P7.3/INT3
69
P7.2/INT2
68
SEG1
P7.1/INT1
SEG2
67
P7.0/INT0
SEG3
66
EM78811
COM15/P6.7
SEG4
65
COM14/P6.6
64
SEG5
COM13/P6.5
SEG6
63
COM12/P6.4
62
SEG7
COM11/P6.3
SEG8
61
COM10/P6.2
60
SEG9
COM9/P6.1
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
VDD2
SEG17
59
COM8/P6.0
58
COM7
57
COM6
56
COM5
55
COM4
54
COM3
53
VSS2
52
COM2
51
FUNCTIONAL BLOCK DIAGRAM
ROM
RAM
CPU
TIMING
CLK
CONTROL
I/O PORT
I/O PORT
TIMER
INPUT PORT
INPUT PORT
FSK
FSK
INPUT
DEMODULATOR
LCD
LCD
OUTPUT
LATCH
& DRIVER
DTMF
* This specification are subject to be changed without notice.
2
10.12.1998
ELAN [ ELAN MICROELECTRONICS CORP ]
