— 21 —
Pin No.
Name
In/Out
Status
Status
Description
of OFF
of ON
1~8
OI7~OI0
In/Out
L
L
Data bus line for ICcard
9
A15
In
L
Pulse
Address input
10,11
A01,A00
In
L
Pulse
A1,A0 address input
12
CEB
In
L
Pulse
Decode signal for data access
13~16,18~21
IO0~IO7
In/Out
L
Pulse
Data bus line
17
GND
In
L
L
GND terminal
22
CSB
In
H
Pulse
Chip select signal from CPU
23
MON
Out
L
L
Holding signal for LSI terminal (Card lock switch)
24
LSI
In
L
L
Card lock switch detection input
25
LSO
Out
H
H
Card lock switch detection output
26
PDN
In
H
H
Power down detection input
27
BLI
In
H
H
Battery detection V comp1 input
28
DEB
Out
H
Pulse
Chip selection signal for ROM(Character generator)
29
VIN
In
L
H
Power on signal input
30
VOT
Out
L
H
Power on signal output
31
OEI
In
H
Pulse
Read signal input
32
WEI
In
H
Pulse
Write signal input
33
BBC
Out
L
Pulse
Memory back-up battery scanning signal
34
CDE
In
L
H
IC card detection signal input
35
VOB
Out
H
L
ROM power switching signal (Operation program)
36
TXO
Out
H
H
Transmision data output
37
TXI
In
H
H
Reception data input
38
FOM
In
H
H
VDD terminal
39
VDD
In
H
H
VDD terminal
40
SWO
Out
L
L
Main switch control signal
41
BCN
In
H
H
BCON signal from CPU
42
MDP
In
H
L
MDP2 signal from CPU
43
OEO
Out
L
Pulse
Read signal for IC card
44
WEO
Out
L
Pulse
Write signal for IC card
10-6. Power supply chip IC pin descriptions (SC371015FU)
32,22
GND1,2
In
L
L
GND terminal
1,19
VDD1,2
In
H
H
Main battery positive terminal (+6V)
2
VO1
Out
H
H
VDD output terminal (4.5V)
31
PDB
In
L
H
Power on switch signal from gate array
6
V COMP1
Out
H
H
Battery detection signal (less than 4.6V---"L")
7
V COMP2
Out
H
H
Battery detection signal (less than 4.4V---"L")
8
VSS
Out
L
*-5V
LCD drive power V REG
9
V1
Out
L
*3.25V
LCD drive power V1
10
V2
Out
L
*1.95V
LCD drive power V2
11
V3
Out
L
*-2.5V
LCD drive power V3
12
V4
Out
L
*-3.75V
LCD drive power V4
13~16
VD/V1~4
**
H
**
Voltage drividing terminal for LCD drive power
17
C1N
**
GND
-5V
Negative terminal for doubler capacitor C7
18
C2P
**
3V
GND
Positive terminal for doubler capacitor C8
20
C1P
**
3V
-2.2V
Positive terminal for doubler capacitor C7
21
C2N
**
GND
-2.2V
Negative terminal for doubler capacitor C8
23
SUB CONT
In
L
**
Pin No.
Name
In/Out
Status
Status
Description
of OFF
of ON
10-5.Gate array pin descriptions (
µ
PD65005G-452-22)
card
Not used
Connected to GND
Not used
(Not used)
(Not used)
Summary of Contents for SF-8350
Page 1: ...SF 8350 LX 572 JUNE 1993 R without price...
Page 3: ...1 1 SCHEMATIC DIAGRAM 1 1 Main Block...
Page 4: ...2 1 2 Display Block...
Page 5: ...3 1 3 Key Matrix...
Page 14: ...13...
Page 33: ...32 13 PARTS LIST SF 8350...
Page 34: ...33...
Page 35: ...34 14 PCB VIEW SF 8350...
Page 36: ...35 15 ASSEMBLY VIEW SF 8350...
Page 37: ...8 11 10 Nishi Shinjuku Shinjuku ku Tokyo 160 Japan Telephone 03 3347 4926...
