1
Dot Matrix LCD Controller Driver
PF135-08
q
1/8 or 1/16 Duty Dot Matrix Drive
q
20 Character Simultaneous Display
q
Built in Character Generator ROM and RAM
SED1200F
s
DESCRIPTION
The SED1200F is a dot matrix LCD controller/driver with a built in CG (character generator).
The circuit consists of a CG ROM which contains 160 different characters, 4 words CG RAM, 20 words display
data RAM and logic functions to operate a 20 character display. Additional characters may be used by writing
CG data to the 4 words CG RAM.
The device also contains the resistor array for the LCD power supply. The SED1200F is fabricated Silicon Gate
CMOS process and features very low power dissipation. This makes the device very desirable for applications
in hand held, portable and other battery powered instruments.
s
FEATURES
q
1/8 or 1/16 duty cycle dot matrix drive
q
20 character simultaneous display
q
Built in character generator ROM and RAM
q
Built in CR oscillator
q
Built in resistor array for LCD power supply
q
Compatible with 4 or 8 bit microprocessors
q
2 kinds of character font
q
TTL Compatible
q
5
7+Cursor line or 558 character font
q
Power supply
Logic : 2.5V to 5.5V
LCD : 3.5V to 5.5V
q
Package ............ SED1200F : QFP1-80pin (plastic)
SED1200D : Die form
s
BLOCK DIAGRAM
CLK
Input Controller
Address Counter
Address Controller
Address Counter
Common Generator
Common Driver
LC Power Supply
CGROM 160 words
Segment Signal Generator
Segment Driver
SEG1 SEG50
V
SS
V
DD
V
LCD
COM16
COM1
OSC1 OSC2
LC Power Divider
Instruction
Register
DDRAM
10
!
2words
(160 bits)
Write/Read
Controller
Latch
CGRAM
CGRAM 5
!
8 dots
!
4
(160 bits)
Write/Read Controller
Data Controller
Timing Generator
Oscillator
Timing Generator
WR
RD
A0
CS
DB0
DB1
DB2
DB3
Wide Voltage
Operation
Products
2
SED1200F
s
PIN CONFIGURATION
q
AC Characteristics (Write cycle)
Pin No.
I/O
Function
18 to 25
40 to 47
COM1 to
COM16
O
LCD Common output
27
CS
I
Chip select input (active "Low")
Pin Name
17 to 1
80 to 48
SEG1 to
SEG 50
O
LCD Segment output
28
RD
I
Read enable input
(
active
"
Low
")
29
WR
I
Write enable input
(
active
"
Low
"
to
"
High
")
38
V
LCD
--
Supply voltage for LCD
37
V
SS
--
GND (0V)
39
V
DD
--
Supply voltage (+5V) for logic
32, 31
OSC1, OSC2
--
Connect oscillation resistor
30
CLK
I
Clock for command
26
A0
I
"
High
"
; Set character code.
"
Low
"
; Command
36 to 33
DB0 to DB3
I, I/O
Data input
(
except DB3 ; Data input/output
)
s
ABSOLUTE MAXIMUM RATINGS
QFP1-80pin
SEG33
SEG32
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
COM9
V
DD
V
LCD
V
SS
DB0
DB1
DB2
DB3
OSC1
OSC2
CLK
WR
RD
CS
A0
COM8
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
COM1
COM2
COM3
COM4
COM5
COM6
COM7
SEG34
SEG35
SEG36
SEG37
SEG38
SEG39
SEG40
SEG41
SEG42
SEG43
SEG44
SEG45
SEG46
SEG47
SEG48
SEG49
SEG50
COM16
COM15
COM14
COM13
COM12
COM11
COM10
INDEX
SED1200F
64
65
41
50
60
40
70
75
1
24
30
s
ELECTRICAL CHARACTERISTICS
q
AC Characteristics (Read cycle)
A0
CS
RD
t
CR
t
RC
t
AR
t
RA
DB3
Input
(A0, CS, RD, CLK)
t
RP
t
RD
t
LH
t
HL
t
RH
2.0V
0.8V
2.4V
0.4V
A0
CS
DB0 to DB3
t
CW
t
AW
t
WA
t
WC
t
DS
t
DH
t
DS
t
DH
WR
Input
(A0, CS, WR
DB0 to DB3, CLK)
t
WP
t
WP
t
LH
t
HL
2.0V
0.8V
(Write cycle)
(Read cycle)
s
PIN DESCRIPTION
0.3 to+7.0
V
DD
7.0 to V
DD
+0.3
0.3 to V
DD
+0.3
0.3 to V
DD
+0.3
10 to+70
65 to+150
Symbol
Value
Unit
Rating
Supply voltage (1)
Supply voltage (2)
Input voltage
Output voltage
Operating temperature
Storage temperature
V
DD
V
LCD
V
I
V
O
T
opr
T
stg
V
V
V
V
C
C
(V
SS
= 0V)
A0 setup time to RD
CS setup time to RD
Output delay time from RD
A0 hold time after RD
CS hold time after RD
Data hold time
Read pulse width
Input fall time
Input rise time
t
AR
t
CR
t
RD
t
RA
t
RC
t
RH
t
RP
t
HL
t
LH
ns
ns
ns
ns
ns
ns
ns
ns
ns
Symbol
Max.
Characteristic
Unit
Condition
Typ.
Min.
(V
DD
= 5V
10%, V
SS
= 0V, Ta = 10 to+70
C)
A0 setup time to WR
CS setup time to WR
Data setup time
A0 hold time after WR
CS hold time afrer WR
Data hold time
Write pulse width
Input fall time
Input rise time
0
0
--
20
20
10
350
--
--
0
0
120
20
20
20
200
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
250
--
--
--
--
50
50
--
--
--
--
--
--
--
50
50
t
AW
t
CW
t
DS
t
WA
t
WC
t
DH
t
WP
t
HL
t
LH
ns
ns
ns
ns
ns
ns
ns
ns
ns
Symbol
Max.
Characteristic
Unit
Condition
Typ.
Min.
(V
DD
= 5V
10%, V
SS
= 0V, Ta = 10 to+70
C)
q
Timing Chart
3
SED1200F
Symbol
Unit
Characteristic
Logic operating voltage
LCD operating voltage
Resistor for oscillator
Input voltage; High (1)
Input voltage; Low (1)
Input leakage current; High
Input leakage current; Low
Input voltage; High (2)
Input voltage; Low (2)
Output current; High
Output current; Low
Input pull up current
Resistor as power divider
Operating frequency (1)
Operating frequency (2)
Command execution time
Operating current
Common output current (1)
Common output current (2)
Common output current (3)
Common output current (4)
Segment output current (1)
Segment output current (2)
Segment output current (3)
Segment output current (4)
V
DD
V
LCD
R
f
V
IH1
V
IL1
I
LIH
I
LIL
V
IH2
V
IL2
I
OH
I
OL
I
IPU
R
d
f
OSC
CLK
I
DD
t
COMD
I
OH
V
DDC
I
OL
V
LCDC
I
OL
V
L1C
I
OL
VL4C
I
OL
VDDS
I
OL
VLCDS
I
OL
VL2S
I
OL
VL3S
V
DD
= 5V, f
OSC
= 100kHz
V
DD
= 4.5 to 5.5V
V
DD
= 4.5 to 5.5V
V
DD
= 5.5V, V
IH
= 5.5V
V
DD
= 5.5V, V
IL
= 0V
V
DD
= 4.5 to 5.5V
V
DD
= 4.5 to 5.5V
V
DD
= 5V, V
OH
= 2.4V
V
DD
= 5V, V
OL
= 0.4V
V
IL
= 0V, V
DD
= 5V
V
DD
= 4.5 to 5.5V
V
DD
= 4.5 to 5.5V
V
DD
= 5V, V
LCD
= 0V
f
OSC
= 100kHz, CLK = 1MHz
V
DD
= 4.5V
V
LCD
= 1.0V
1/16 duty drive
Voltage drop by 0.5V
V
V
k
V
V
A
A
V
V
mA
mA
A
k
kHz
MHz
A
s
A
A
A
A
A
A
A
A
T
1
T
1
T
2
T
2
T
3
T
3
T
4
T
4
T
5
Condition
4.5
V
DD
5.5
240
2.0
0
--
--
0.8V
DD
0
1.0
1.6
3
30
--
--
--
--
20
20
8
8
12
12
4
4
5
--
310
--
--
--
--
V
DD
0
--
--
10
130
100
--
80
--
--
--
--
--
--
--
--
--
5.5
V
DD
4
380
V
DD
0.8
1.0
1.0
V
DD
0.2V
DD
--
--
30
300
300
3.2
150
16/CLK
(MHz)
--
--
--
--
--
--
--
--
Max.
Typ.
Min.
(V
SS
= 0V, Ta = 10 to +70
C)
When one terminal is measured,
the others are open.
T
6
q
DC Characteristics (V
DD
= 5V)
q
Display Command
SET CURSOR DIRECTION
CURSOR ADDRESS1/+1
CURSORFONT SELECT
CURSOR BLINK ON/OFF
DISPLAY ON/OFF
CURSOR ON/OFF
SYSTEM RESET
LINE SELECT
SET CURSOR
ADDRESS
SET CHARACTER CODE
BUSY FLAG CHECK
SET CGRAM ADDRESS
SET CGRAM DATA
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
1
1
1
1
1
1
1
1
1
1
0
1
1
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
1
1
BF
0
0
0
0
0
0
0
0
0
0
0
1
T
0
1
0
0
0
0
0
0
0
0
T
1
0
0
0
0
0
0
0
1
1
T
0
0
0
1
1
1
1
0
0
BF
1
1
0
0
1
1
0
0
T
0
1
0
1
0
1
0
1
T
D/I
1/+1
A/U
ON/OFF
ON/OFF
ON/OFF
0
2/1
T
Command Name
Note
1st input
2nd input
CS WR RD AO
DB3
(D7)
DB2
(D6)
DB1
(D5)
DB0
(D4)
DB3
(D3)
DB2
(D2)
DB1
(D1)
DB0
(D0)
1st LINE
(CHARACTER CODE)
2nd LINE
(Set lower address)
D0 = 1 : Decrement
D0 = 0 : Increment
D0 = 1 : 1
D0 = 0 : +1
D0 = 1 : All dots blinking
D0 = 0 : Under line
D0 = 1 : ON
D0 = 0 : OFF
D0 = 1 : ON
D0 = 0 : OFF
D0 = 1 : ON
D0 = 0 : OFF
Except data RAM and CGRAM
D0 = 1 : 2 line display (1/16 duty)
D0 = 0 : 1 line display (1/8 duty)
D7 (D3 = 1 : Busy
D7 (D3 = 0 : Not Busy
(Set CGRAM data)
(N figure--1)B
(N figure--1)B
T
1. Terminal: CS, RD, WR, A0, DB0 to DB3, CLK
T
2. Terminal: CLK, OSC1, DB0 to DB3
T
3. Terminal: OSC1 (for external clock)
T
4. Terminal: DB3
T
5. Terminal: CS, RD WR, A0
T
6. CS = RD = WR = A0 = 5.0V (open output terminals)
T
= High impedance
Note: Misoperation may be caused when any command other than that listed in the above table is inputted.
4
SED1200F
s
PACKAGE DIMENSIONS
s
CPU INTERFACE
s
CHARACTER CODE MAP (SED1200F
OB
)
C
7
A
B
D
0
2
3
4
5
6
Lower 4bit (D4 to D7) of Character Code (Hexadecimal)
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
CG RAM AREA
5X8 DOTS
Upper
4bit
(O
to
D3)
of
Char
actor
Code
(He
xadecimal)
Plastic QFP1-80pin
Unit: mm
20
0.1
25.2
0.4
41
64
14
0.1
19.2
0.4
25
40
INDEX
0.35
24
1
80
65
2
0.1
0.23
2.6
0
12
0.15
0.05
0.8
1.2
+0.1
0.05
+0.3
0.5
2.6
max
The SED1200F can connect to the address bus or the data
bus directly or alternatively, a peripheral interface unit.
An example is shown below.
Out port
Out port
Out port
Out port
Out port
Out port
Out port
I/O port
A0
RD
WR
CS
DB0
DB1
DB2
DB3
CLK
4/8 bit CPU
SED1200F
OB
clock
5
SED1200F
s
DIE SPECIFICATION
q
PAD LAYOUT
q
PAD COORDINATION
1705
1705
2930
2930
Die Size
Die Thickness
Pad Size
Pad Pitch
5.86
!
3.41mm
400
m
90
!
90
m
190
m
q
Die Specification
q
Pad Specification
(0, 0)
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
31
32
33
34
35
36
37
38
39
40
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
A0
CS
RD
WR
XD
XG
DB3
DB2
DB1
DB0
VSS
VLCD
VDD
COM9
2123
1932
1742
1551
1361
1170
980
789
599
408
218
27
163
354
544
735
925
1116
1306
1497
1687
1878
2068
2259
2778
2778
2778
2778
2778
2778
2778
2778
2778
2778
2778
2778
2778
2778
2778
2778
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1429
1238
1048
857
667
476
286
95
95
286
476
667
857
1048
1238
1429
Pad
No. Pad Name
X
Y
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
COM10
COM11
COM12
COM13
COM14
COM15
COM16
SEG50
SEG49
SEG48
SEG47
SEG46
SEG45
SEG44
SEG43
SEG42
SEG41
SEG40
SEG39
SEG38
SEG37
SEG36
SEG35
SEG34
SEG33
SEG32
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
2220
2029
1839
1648
1458
1267
1077
886
696
505
315
124
66
257
447
638
828
1019
1209
1400
1590
1781
1971
2162
2777
2777
2777
2777
2777
2777
2777
2777
2777
2777
2777
2777
2777
2777
2777
2777
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1552
1385
1195
1004
814
623
433
242
52
139
329
520
710
901
1091
1282
1472
Pad
No. Pad Name
X
Y
unit :
m
Note: The origin of cordination is center of the die.
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