SAMES SA8807AFA, SA8807APA Datasheet
sames
FEATURES
SA8807A
96 SEGMENT LIQUID CRYSTAL DISPLA Y DRIVER
SERIAL (SPI) INTERFACE
• Drives up to 96 segments
• Serial (SPI) interface with Read/Write
capability
• Operates over a wide temperature
range
DESCRIPTION
The SAMES SA8807A Liquid Crystal
Display (LCD) Driver is capable of driving
up to 96 LCD segments and is designed for
displays having 3 or 4 track multiplexed
backplanes.
The SA8807A includes an on-chip
oscillator. The data exchange is carried
out via the Serial Peripheral Interface (SPI).
This LCD driver is ideal for any microcontroller based system requiring a liquid
crystal display of up to 12 digits.
The SA8807A integrated circuit is available
in both 40 pin dual-in-line plastic (DIP-40),
as well as 44 pin plastic leaded chip carrier
(PLCC-44) package types.
• External contrast control
• Low power CMOS
PIN CONNECTIONS
V
DD
VS[20]
VS[21]
VS[22]
VS[23]
SCK
MOSI
MISO
CE
RES
END
CLK
GND
M3
VI
NC
VR[0]
VR[1]
VR[2]
VR[3]
DR-00580
VS[19]
VS[18]
VS[17]
VS[16]
VS[15]
VS[14]
VS[13]
VS[12]
VS[11]
VS[10]
VS[9]
VS[8]
VS[7]
VS[6]
VS[5]
VS[4]
VS[3]
VS[2]
VS[1]
VS[0]
Package: DIP-40
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4076 PDS039-SA8807-001 REV. C 11-09-95
SA8807A
PIN CONNECTIONS
VS[14]
VS[13]
VS[11]
VS[12]
VS[9]
VS[10]
N.C.
VS[7]
VS[8]
VS[5]
VS[6]
BLOCK DIAGRAM
VS[15]
VS[16]
VS[17]
VS[18]
VS[19]
N.C.
V
DD
VS[20]
VS[21]
VS[22]
VS[23]
DR-00581
END
SCK
MOSICERES
MOSO
N.C.
CLK
Package: PLCC-44
VS[4]
VS[3]
VS[2]
VS[1]
VS[0]
N.C.
VR[3]
VR[2]
VR[1]
VR[0]
N.C.
GNDM3V1
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SA8807A
ABSOLUTE MAXIMUM RATINGS*
Parameter Symbol Min Max Unit
Supply Voltage VDD -V
Current on any pin I
Storage Temperature T
Operating Temperature T
PIN
STG
O
SS
-0.3 6.0 V
-150 +150 mA
-40 +125 °C
-25 +85 °C
* Stresses above those listed under “Absolute Maximum Ratings” may cause permanent
damage to the device. This is a stress rating only. Functional operation of the device
at these or any other condition above those indicated in the operational sections of this
specification, is not implied. Exposure to Absolute Maximum Ratings for extended
periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(Over the temperature range -10°C to +70°C#, VDD = 5V, VSS = 0V unless otherwise
specified.)
Parameter Symbol Min Typ Max Unit Condition
Supply Voltage VDD-V
Supply Current I
LCD ON Voltages V
LCD OFF Voltages V
#
Extended Operating Temperature Range available on request.
DD
ON
OFF
3.0 5.0 5.5 V
SS
VDD & V
1/3VDD & 2/3 V
SS
DD
sames
100 µA
V
V
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SA8807A
SERIAL INTERFACE TIMING
Ref
No
Characteristic VDD = 3.3V VDD = 5V Unit
Limits (All Types)
Min Max Min Max
1 Chip Enable set-up time 200 100 ns
2 Chip Enable clock hold time 250 125 ns
3 Clock width high 400 200 ns
4 Clock width low 400 200 ns
5 Data In to clock set-up time 200 100 ns
6 Clock to Data propagation delay 200 100 ns
7 Chip Disable to output high Z 200 100 ns
8 Data In after clock hold time 200 100 ns
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MIS0
SCK
CE
DR-00846
sames
6
5.00
7
5.00
PIN DESCRIPTION
Pin Pin
Designation Description
PLCC-44 DIP-40
26 13 GND Ground
13 1 V
DD
Positive Supply Voltage
18 6 SCK (SPI) Serial clock input
19 7 MOSI (SPI) Master Out: Slave In
20 8 MISO (SPI) Master In: Slave Out
21 9 CE Chip Enable input
22 10 RES Reset input
23 11 END Divider Enable
25 12 CLK Oscillator or clock input
27 14 M3 3 / 4 Backplane enable input
28 15 V1 LCD Voltage input (Contrast)
35 21 VS[0] LCD segment driver outputs
36 22 VS[1]
37 23 VS[2]
38 24 VS[3]
39 25 VS[4]
40 26 VS[5]
41 27 VS[6]
42 28 VS[7]
43 29 VS[8]
1 30 VS[9]
2 31 VS[10]
3 32 VS[11]
4 33 VS[12]
5 34 VS[13]
6 35 VS[14]
7 36 VS[15]
8 37 VS[16]
9 38 VS[17]
10 39 VS[18]
11 40 VS[19]
SA8807A
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