MFID
& RF Family
|
Telephone
Controller
|
|
|
Part
No.
|
W742C81B
|
W742E/C/S81A
|
W742C818
|
W742E/C811
|
W742E/C813
|
W742E/C816
|
W742C814
|
W742S824
|
W742S819
|
W742S82A
|
W742C81D
|
|
Emulation
Body
|
W742E81A
|
-
|
W742E81A
|
-
|
-
|
¡@
|
W742E81A
|
|
ROM
(bit)
|
8192x16
|
16384x16
|
32768x16
|
8192x16
|
12288x16
|
16384x16
|
|
RAM
(bit)
|
1024x4
|
2048x4
|
4096x4
|
5120x4
|
1024x4
|
1536x4
|
1536x4
|
2048x4
|
|
Main
System Clock
|
3.58M~400KHz
Crystal/ RC Oscillator
|
32768Hz+PLL(3.6M)
|
|
Sub
System Clock
|
32.768KHz
|
|
Power
Down Mode
|
Hold,
Stop, Slow Mode
|
|
LCD
Driver
|
None
|
40
seg. x 4 com.
|
24
seg. X 8 com.
|
40
seg. x 16 (x8) com.
|
24
seg. X 8 com.
|
40
seg. X 4 com.
|
24
seg. X 8 com.
|
|
I/O
Port
|
12IO,
4I, 8O (RA/RB/RC/RD/RE/RF)
|
12IO,
4I, 8O
|
12IO,
12I, 8O (RA/RB/RC/RD/RE/RF/P0/P1)
|
12I/O,
2I, 4O
|
12IO,
4I, 8O
|
|
Interrupt
|
5
|
11
|
8
|
5
|
|
Timer/Counter
|
2
Timers/Counters
|
|
Timer/Counter
Readable
|
Unreadable
|
Timer0
Unreadable/Timer1 Readable
|
Readable
|
Timer0
Unreadable/Timer1 Readable
|
|
Stack
|
16
|
¡@
|
¡@
|
¡@
|
¡@
|
¡@
|
8
|
16
|
8
|
|
Operating
Mode
|
Dual-clock
|
|
DTMF
Generator
|
1
|
|
FSK
Generator
|
None
|
One
channel
|
None
|
|
Operation
Voltage
|
2.4V-6.0V
|
2.4V-5.5V
|
|
Package
Pin#
|
DIP
40
|
QFP
100
|
QFP
80
|
|
OP
|
¡@
|
¡@
|
¡@
|
3
|
0
|
3
|
0
|
|
|
|
|
|
|
|
|
|
|
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