GSM793E
Syntek Semiconductor Co., Ltd.
(80CH Segment Driver For Dot Matrix LCD) Introduction :
GSM793E is a segment driver for dot matrix type LCD display. It features 80 channels with 40 X 2 bits bi-directional shift registers, data latches, LCD drivers and logic control circuits. It is fabricated by high voltage CMOS process with low current consumption. The GSM793E can convert serial data received from an LCD controller, such as GSM7980, into parallel data and send out LCD driving waveforms to the LCD panel. The GSM793E is designed for general purpose LCD drivers. It can drive both static and dynamic drive LCD. The LSI can be used as segment driver. The GSM793E has pin function compatibility with the KS0063(B) that allows the user to easily replace it with an GSM793E.
Functions :
l Dot matrix LCD driver with two 40 channel outputs l Bias voltage (V1 ~ V4) l input/output signals
n n Input : Serial display data and control pulse from controller IC Output : 40 X 2 channels waveform for LCD driving
Features :
l Display driving bias : static to 1/5 l Power supply for logic : 2.7V ~ 5.5V l Power supply for LCD voltage (VDD~VEE) : 3V ~ 11V 100 Pin QFP package and bare chip available
LCD Controller /Driver
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V1.1
GSM793E
Syntek Semiconductor Co., Ltd.
GSM793E FUNCTI ONAL BLOCK
S1 ...................S40 S41… … … … S80
V1 V2 V3 V4
SEGMENT DRIVER
SEGMENT DRIVER
DATA LATCH(40BITs)
DATA LATCH(40BITs)
VDD VSS VE E
BIDIRECTIONAL SHIFTER(40BITs)
BI DIRECTIONAL SHIFTER(40BITs )
M CL1 CL2
CONTOL
DL1 SHL1 DR1
DL2 SHL2 DR2
LCD Controller /Driver
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V1.1
GSM793E
Syntek Semiconductor Co., Ltd.
Pin Description :
PIN NAME
VDD VSS VEE V1 V2 V3 V4 S1-S40 SHL1 DL1, DR1
PURPOSE
POWER GROUND LCD GND LCD output LCD output segment direction data in /out
DESCRIPTION
for logic for logic for LCD driving voltage used as select voltage level used as non select voltage level LCD driver output for part 1 direction control for part 1 segments If SHL1 = 1 then DL1=out, DR1=in If SHL1 = 0 then DL1=in, DR1=out
I/O
N/A N/A N/A I I O I I/O
S41-S80 SHL2 DL2, DR2
segment direction data in/out
LCD driver output for part 2 direction control for part 2 segments If SHL2 = 1 then DL2=out, DR2=in If SHL2 = 0 then DL2=in, DR2=out
O I I/O
M CL1 CL2
alternation latch clock shift clock
Alternate the LCD driving waveform latch the data after shift is completed shift the data into the segments
I I I
LCD Controller /Driver
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V1.1
GSM793E
78 79 80
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
Syntek Semiconductor Co., Ltd.
81 82 83 84 85 86 87 88 89 90 91 92 93
46
45
44
43
42
(0,0)
40
39
38
Size: 38 00x26 00 um 2 Coor dinat e: center M in. PA D Pitch : 120um
37
36
34 94 95 96 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Circle here to find th e first PAD
“GS M793E” Mark ing: Easy to find the PAD
33
32
GSM793E
31
24
25
26
27
28
29
30
LCD Controller /Driver PAD Arrangement
35
4 /10
41
V1.1
GSM793E
Syntek Semiconductor Co., Ltd.
PAD NAMES AND COORDINATES
Pa Pad d Nam No e . 1 S42 2 S43 3 S44 4 S45 5 S46 6 S47 7 S48 8 S49 9 S50 10 S51 11 S52 12 S53 13 S54 14 S55 15 S56 16 S57 17 S58 18 S59 19 S60 20 S61 21 S62 22 S63 23 S64 24 S65 25 S66 26 S67 27 S68 28 S69 29 S70 30 S71 31 S72 32 S73 X Y Pa Pad d Name No . 33 S74 34 S75 35 S76 36 S77 37 S78 38 S79 39 S80 40 S40 41 S39 42 S38 43 S37 44 S36 45 S35 46 S34 47 S33 48 S32 49 S31 50 S30 51 S29 52 S28 53 S27 54 S26 55 S25 56 S24 57 S23 58 S22 59 S21 60 S20 61 S19 62 S18 63 S17 X Y Pa d No . 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 Pad Nam e S15 S14 S13 S12 S11 S10 S9 S8 S7 S6 S5 S4 S3 S2 S1 VEE V1 V2 V3 V4 VSS CL1 SHL1 SHL2 VDD CL2 DL1 DR1 DL2 X Y 64 S16 -60 1160
-1760 -1630 -1500 -1380 -1260 -1140 -1020 -900 -780 -660 -540 -420 -300 -180 -60 60 180 300 420 540 660 780 900 1020 1140 1260 1380 1500 1630 1760 1760 1760
-1160 -1160 -1160 -1160 -1160 -1160 -1160 -1160 -1160 -1160 -1160 -1160 -1160 -1160 -1160 -1160 -1160 -1160 -1160 -1160 -1160 -1160 -1160 -1160 -1160 -1160 -1160 -1160 -1160 -1160 -1030 -900
1760 1760 1760 1760 1760 1760 1760 1760 1760 1760 1760 1760 1760 1760 1760 1760 1760 1630 1500 1380 1260 1140 1020 900 780 660 540 420 300 180 60
-780 -660 -540 -420 -300 -180 -60 60 180 300 420 540 660 780 900 1030 1160 1160 1160 1160 1160 1160 1160 1160 1160 1160 1160 1160 1160 1160 1160
-180 -300 -420 -540 -660 -780 -900 -1020 -1140 -1260 -1380 -1500 -1630 -1760 -1760 -1760 -1760 -1760 -1760 -1760 -1760 -1760 -1760 -1760 -1760 -1760 -1760 -1760 -1760
1160 1160 1160 1160 1160 1160 1160 1160 1160 1160 1160 1160 1160 1160 1030 900 780 660 540 420 300 180 60 -60 -180 -300 -420 -540 -660
LCD Controller /Driver
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V1.1
GSM793E
Syntek Semiconductor Co., Ltd.
94 95 96 DR2 M S41 -1760 -780 -1760 -900 -1760 -1030
LCD Controller /Driver
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V1.1
GSM793E
Syntek Semiconductor Co., Ltd.
Functional Description :
Clock The CL1 is the clock to latch data on the falling edge. It latches the data input from the bidirectional shift register at the falling edge of CL1 and transfers its outputs to the LCD driver circuit. The CL2 is the clock to shift data on the falling edge. It shifts the serial data at the falling of CL2 and transfers the output of each bit of the register to the latch circuit.
Shift Registers And Data I/O The GSM793E supplies two sets of 40-bit shift register, which controls the shift direction by SHL1 & SHL2. The SHL1 controls the 1st 40-bit shift register, and SHL2 controls the 2nd 40-bit shift register. When SHL1 is connected to VDD, the 1st shift direction is from S40 to S1; when SHL1 is connected to VSS, the shift direction changes from S1 to S40. When SHL2 is connected to VDD, the 2nd shift direction is from S80 to S41; when SHL2 is connected to VSS, the shift direction changes from S41 to S80. The DL1, DR1, DL2, DR2 are data input or output option function.
Shift Direction of Channel 1 SHL1
0 1
Shift Direction
S1 à S40 S40 à S1
DL1
IN OUT
DR1
OUT IN
Shift Direction of Channel 2 SHL2
0 1
Shift Direction
S41 à S80 S80 à S41
DL2
IN OUT
DR2
OUT IN
LCD Controller /Driver
7 /10
V1.1
GSM793E
Syntek Semiconductor Co., Ltd.
LCD Output Waveforms :
Output of LATCH (DATA)
M
V2 V4 Output (S1 ~ S80) V1 V3 V1
V2 V4 V3
Timing Characteristics :
VIH CL2 VIL TWCKH TR
TWCKL
TF TDH TSU
Data in (DL1, DL2) (DR1, DR2)
TD Data out (DL1, DL2) (DR1, DR2) VOH TSL VOL TLS TLS
CL1 TR TSU M TWCKH
LCD Controller /Driver
8 /10
V1.1
GSM793E
Syntek Semiconductor Co., Ltd.
D.C Characteristics:
Symbol
VDD VLCD VIH VIL ILKG VOH VOL IDD IV
Parameter
Operating Voltage Driver Supply Voltage Input High Voltage Input Low Voltage Input Leakage Current Output High Voltage Output Low Voltage Operating Current Leakage Current
Test Condition
VDD-VEE VIN = 0 ~ VDD I OH = -0.4mA I OL = +0.4mA FCL2 = 400KHZ VIN = VDD ~ VEE
Min.
2.7 3 0.7VDD 0 -5 VDD-0.4 -10
Typ.
100 -
Max.
5.5 11 VDD 0.3VDD 5 0.4 300 10
Unit
V V V V uA V V uA uA
Applicable pin
CL1,CL2,M,SHL1,SHL2 DL1,DL2,DR1,DR2
DL1,DL2,DR1,DR2 V1~V4, S1~S80 VDD,VEE V1 ~ V4
A.C Characteristics :
Symbol FCL TWCKH TWCKL TSL TLS TR/TF TSU TDH TD
Parameter Data Shift Frequency Clock High Level Width Clock Low Level Width Clock Set-up Time Clock Set-up Time Clock Rise/Fall Time Data Set-up Time Data Hold Time Data Delay Time
Test Condition Min. CL2 à CL1 CL1 à CL2 CL = 15 P F 800 800 500 500 300 300 -
Max. 400 200 500
Unit KHZ ns ns ns ns ns ns ns ns
Applicable pin CL2 CL1,CL2 CL2 CL1,CL2 CL1,CL2 CL1,CL2 DL1,DL2,DR1,DR2 DL1,DL2,DR1,DR2 DL1,DL2,DR1,DR2
Maximum Absolute Ratings :
Symbol
VDD T OPR T STG
Parameters
Supply Voltage Operating Temperature Storage Temperature
Min.
-0.3 -20 -55
Max.
7 75 125
Unit
V
0
C C
0
LCD Controller /Driver
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V1.1
GSM793E
Dot Matrix LCD Panel
Syntek Semiconductor Co., Ltd.
COM116 D SHL1 SHL2 GND VEE DL1 VDD DR2 DL2 DR1 CL1 CL2 M
SEG140
S1-S80 DL1 VDD SHL1 SHL2 GND VEE
S1-S80 DR2 DL2 DR1 CL1 CL2 M
GSM793E
GSM793E
Application Circuit : (2Line x 40Word)
GSM7980
V1 V2 V3 V4
V1 V2 V3 V4
DB0-DB7
Reg.
To MPU Vdd (+5V/+3V )
Reg.
Reg.
Reg.
Reg.
Reg.
-V or GND
LCD Controller /Driver
Vdd GND CL2 CL1 M V1 V2 V3 V4 V5
Note: R= 2.2K ~ 10K, VR= 1K~30K
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V1.1