Finechips FD1000A 3-com 52-seg, 4-com 51-seg lcd display driver Datasheet

FD1000A
3/4COM LCD Driver
FD1000A
3-COM 52-SEG, 4-COM 51-SEG LCD Display Driver
January. 2008
Ver. 1.0
CONTENTS
1. General Description & Features
-------------------------------- page 2
2. Pin Assignment & Block Diagram
-------------------------------- page 3
3. Pin Descriptions
-------------------------------- page 4
4. Serial Data Format and Timing
-------------------------------- page 4
5. Control Data Functions
-------------------------------- page 5
6. Display Data to Segment Output Pin Correspondence -------- page 7
7. LCD Driving Waveform
-------------------------------- page 9
8. Application Circuit
-------------------------------- page 11
9. INH\ Pin and Display Control
-------------------------------- page 17
10. Absolute Maximum Ratings
-------------------------------- page 18
11. D.C Electrical Characteristics
-------------------------------- page 18
12. A.C Electrical Characteristics
-------------------------------- page 19
13. Package Dimensions
-------------------------------- page 20
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FD1000A
3/4COM LCD Driver
3 COM, 4 COM LCD Display Driver
General Description
The FD1000A is a 1/3 or 1/4 duty LCD driver for segment type LCD panel. It can be used for
frequency display in microprocessor-controlled receiver and in other display application.
The FD1000A chooses numbers of common and general-purpose output ports by instructions.
Therefor, It drives 156-segment at 1/3 duty in use of 3 commons or 204-segment at 1/4 duty
in use of 4 commons. Also it provides 12 general-purpose output ports.
Features
z
Programmable Duty Ratio
1/3 Duty : Up to 156 Segment Outputs
1/4 Duty : Up to 204 Segment Outputs
z
Programmable LCD Bias Ratio : 1/2 Bias or 1/3 Bias
z
Programmable General-purpose Output Port Function (Only 1/4 Duty Mode)
z
Internal LCD Driving Voltage Generator Circuit
z
Normal & Diminish LCD Dividing resistors Selection (Only 1/4 Duty Mode)
z
Power Saving Mode and all Segment OFF Function
z
RC Oscillation Circuit
z
Serial Interface ( SI, SCK, CE and INH/ ) for 3V or 5V
z
Power supply Voltage : 2.7V ~ 5.5V
z
Package Type
64-LQFP-1414, 64-LQFP-1010
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FD1000A
3/4COM LCD Driver
Pin Assignment
Block Diagram
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FD1000A
3/4COM LCD Driver
Pin Descriptions
Pin No.
1 ~ 12
Pin Name
SEG1/ P1 ~
I/O
O
Pin Description
LCD Segment output pins / General-purpose output pins(Only 1/4Duty Mode)
Select Segment output pins or General-purpose output pins by the instruction.
SEG12/ P12
13 ~ 51
SEG13~SEG51
O
LCD Segment output pins.
52
SEG52/ COM0
O
LCD Segment output pin or LCD Common output pin.
SEG52 in 1/3 Duty use, COM0 in 1/4 Duty use.
53 ~ 55
COM1 ~ COM3
O
57
INH\
I
LCD Common output pins.
Display off control input pin
INH\ = VSS, Display forced off
58, 59
VLC1, VLC2
I/O
LCD power supply
61
OSC
I/O
Oscillator output pin.
62
CE
I
Chip enable input pin
63
SCK
I
Shift clock input pin
64
SI
I
Serial Data input pin
56
VDD
-
Power supply
60
VSS
-
Ground
INH\ = VDD, Display on
Serial Data Format and Timing
z
1/3 Duty , SCK is stopped at low level
z
1/3 Duty , SCK is stopped at high level
Note : X = don’t care
4 / 20
FD1000A
z
1/4 Duty , SCK is stopped at low level
z
1/4 Duty , SCK is stopped at high level
3/4COM LCD Driver
Control Data Functions
z
Display Data : D1 to D156 (1/3 Duty), D1 to D204 (1/4 Duty)
When the bit of a display data is “1”, the LCD display is turn ON
When the bit value is “0”, the display is turn OFF.
z
Duty Selection : Duty select address is which sets LCD driving duty ratio 1/3 or 1/4 duty.
Address = 41 Hex, 1/3 Duty ( 3-Common 52-Segment LCD Driver )
Address = 80 Hex, 1/4 Duty ( 4-Common 51-Segment LCD Driver )
z
DR : 1/2 or 1/3 Bias Selection Bit
DR data = “0” , 1/2 Bias Drive
= “1” , 1/3 Bias Drive
z
SC : Segment ON/OFF Control Bit
SC data = “0” , Display ON
= “1” , Display OFF
z
BU : Power saving Control Bit
BU data = “0” , Normal Mode
= “1” , Power-saving Mode.
In this mode the Oscillator is stopped and the segment pins output Vss levels.
z
CU : LCD dividing resistors selection bit (Only 1/4 Duty Mode)
CU data = “0” , Normal Mode (RLCD=R)
= “1” , Low current Mode (RLCD=2*R)
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FD1000A
z
3/4COM LCD Driver
PC0 to PC1 : Segment /General-purpose output pin selection bits (Only 1/4 Duty Mode)
Note : SEGn(n=1~12) : Segment output pin function, Pn (n=1~12) : General-purpose output pin function
When selected, following data are assigned.
For example, When the general-purpose output pin function is selected for SEGn/Pn output pins,
that output pin will output a high level data Dn is “1”, and will output a low level when Dn is “0”.
6 / 20
FD1000A
3/4COM LCD Driver
Display Data to Segment Output Pin Correspondence (1)
z
1/3 Duty
Note : When Display Data is “1”, the Segment ON. When Display Data is “0”, the Segment OFF
7 / 20
FD1000A
3/4COM LCD Driver
Display Data to Segment Output Pin Correspondence (2)
z
1/4 Duty
Note : When Display Data is “1”, the Segment ON. When Display Data is “0”, the Segment OFF
8 / 20
FD1000A
3/4COM LCD Driver
LCD Driving Waveform (1)
z
1/3 Duty, 1/3 Bias and 1/2 Bias
Note : Frame frequency fr = fosc / 384 Hz
9 / 20
FD1000A
3/4COM LCD Driver
LCD Driving Waveform (2)
z
1/4 Duty, 1/3 Bias and 1/2 Bias
Note : Frame frequency fr = fosc / 512 Hz
10 / 20
FD1000A
3/4COM LCD Driver
Application Circuit (1)
11 / 20
FD1000A
3/4COM LCD Driver
Application Circuit (2)
12 / 20
FD1000A
3/4COM LCD Driver
Application Circuit (3)
13 / 20
FD1000A
3/4COM LCD Driver
Application Circuit (4)
14 / 20
FD1000A
3/4COM LCD Driver
Application Circuit (5)
15 / 20
FD1000A
3/4COM LCD Driver
Application Circuit (6)
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FD1000A
3/4COM LCD Driver
INH Pin and Display Control
Since the FD1000A internal data (the display data D1 to D156/D204 and the control data) is
undefined when power is first supplied, the display is off (SEG1 to SEG52 and COM1 to COM3=Low)
By setting the INH\ pin low at the same time as power is supplied.
While the INH\ pin is held low, the micro-controller should send the serial data and set INH\ pin
high after the transfer completes.
Figure 1
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FD1000A
3/4COM LCD Driver
Absolute Maximum Ratings
(TA = 25°C)
Parameter
Symbol
VDD
Supply voltage
Conditions
VDD
Ratings
Unit
– 0.3 to +6.0
V
Input voltage
VI
CE, SCK,SI ,OSC and INH\
– 0.3 to VDD + 0.3
V
Output voltage
VO
SEG1~SEG52, COM1~COM3
– 0.3 to VDD + 0.3
V
Output current
Iout1
SEG1 to SEG52
0.3
Iout2
COM0 to COM4
3
Iout3
P1 to P12
10
Operating temperature
Storage temperature
TA
– 40 to + 85
TSTG
– 55 to + 125
mA
°C
D.C Electrical Characteristics
(TA = - 40 °C to + 85 °C, Vss = 0 V, Vdd = 2.7 V to 5.5 V)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
2.7
-
5.5
V
Operating voltage
VDD
Input high leakage
IIH
CE, SCK,SI and INH\ : Vi = 5V
-
-
5
uA
Input low leakage
IIL
CE, SCK,SI and INH\ : Vi = 0V
-5
-
-
uA
Input high voltage
VIH
CE, SCK,SI and INH\ , VDD = 5V
2.7
-
VDD
V
Input low voltage
VIL
CE, SCK,SI and INH\ , VDD = 5V
-
-
0.5
V
VLC1
VLC1
-
2/3 VDD
-
VLC2
VLC2
-
1/3 VDD
-
VOH1
SEG1 ~ SEG52 : Io = -20uA
VDD–1.0
-
-
VOH2
COM0 to COM3 : Io = -100uA
VDD–1.0
-
-
VOH3
P1 to P12 : Io = -1.5mA , VDD = 5V
VDD–1.0
-
-
VOL1
SEG1 ~ SEG52 : Io = 20uA
-
-
1.0
VOL2
COM0 to COM3 : Io = 100uA
-
-
1.0
VOL3
P1 to P12 : Io = 3mA , VDD = 5V
-
-
1.0
IDD1
Stop mode , VDD = 5V TA = 25 °C
IDD2
f=38Khz, 1/3 duty, 1/2bias, VDD = 5V
-
IDD3
f=38Khz, 1/3 duty, 1/3bias, VDD = 5V
IDD4
f=51Khz, 1/4 duty, 1/2bias, VDD = 5V
Output open, Control Data CU = 0
f=51Khz, 1/4 duty, 1/2bias, VDD = 5V
Output open, Control Data CU = 1
f=51Khz, 1/4 duty, 1/3bias, VDD = 5V
Output open, Control Data CU = 0
f=51Khz, 1/4 duty, 1/3bias, VDD = 5V
Output open, Control Data CU = 1
Input voltage
Output high voltage
Output low voltage
Supply current
IDD5
IDD6
IDD7
VDD
V
V
V
5
uA
300
600
uA
-
250
500
uA
-
300
600
uA
-
250
500
uA
-
250
500
uA
-
200
400
uA
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FD1000A
3/4COM LCD Driver
A.C Electrical Characteristics
(TA = - 40 °C to + 85 °C, VDD = 4.0 V to 5.5 V)
Parameter
Oscillator
frequency
Symbol
Conditions
Min
Typ
Max
Unit
fosc1
Vdd=5V, 1/3 Duty:Rosc=47K, Cosc=1000pF
28
38
48
Khz
fosc2
Vdd=5V, 1/4 Duty:Rosc=47K, Cosc=680pF
41
51
61
Khz
Data setup time
tds
Figure2 : SI, SCK
160
-
-
ns
Data hold time
tdh
Figure2 : SI, SCK
160
-
-
ns
High level
Clock pulse width
twh
Figure2 : SCK
160
-
-
ns
Low level
Clock pulse width
twl
Figure2 : SCK
160
-
-
ns
CE setup time
tcs
Figure2 : SCK, CE
160
-
-
ns
CE hold time
tch
Figure2 : SCK, CE
160
-
-
ns
CE wait time
tcw
Figure2 : SCK, CE
160
-
-
ns
Rise time
tr
VIL to VIH : SI, SCK, CE, INH
-
160
-
ns
Fall time
tf
VIH to VIL : SI, SCK, CE, INH
-
160
-
ns
INH\ switching
time
tc
Figure1 : INH\, CE
10
-
-
us
z
When SCK is stopped at the low level
z
When SCK is stopped at the high level
Figure 2
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FD1000A
3/4COM LCD Driver
Package Dimensions
Unit : mm
20 / 20
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