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PDF S6B0759 Data sheet ( Hoja de datos )
| Número de pieza | S6B0759 | |
| Descripción | 81 COM / 128 SEG DRIVER & CONTROLLER FOR STN LCD | |
| Fabricantes | Samsung semiconductor | |
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Hay una vista previa y un enlace de descarga de S6B0759 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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S6B0759
81 COM / 128 SEG DRIVER & CONTROLLER FOR STN LCD
JAN. 2000.
Ver. 1.2
1 page  
S6B0759
PRELIMINARY SPEC. VER. 1.2
81 COM / 128 SEG DRIVER & CONTROLLER FOR STN LCD
INTRODUCTION
The S6B0759 is a driver & controller LSI for graphic dot-matrix liquid crystal display systems. It contains 81 common
and 128 segment driver circuits. This chip is connected directly to a microprocessor, accepts serial or 8-bit parallel
display data and stores in an on-chip display data RAM of 81 x 128 bits. It provides a highly flexible display section
due to 1-to-1 correspondence between on-chip display data RAM bits and LCD panel pixels. And it performs display
data RAM read/write operation with no externally operating clock to minimize power consumption. In addition,
because it contains power supply circuits necessary to drive liquid crystal, it is possible to make a display system
with the fewest components.
FEATURES
Driver Output Circuits
− 81 common outputs / 128 segment outputs
Applicable Duty Ratios
Programmable duty ratio
Applicable LCD bias
1/17 to 1/81
− Various partial display
− Partial window moving & data scrolling
1/4 to 1/11
On-chip Display Data RAM
− Capacity: 81 x 128 = 10,368 bits
− Bit data "1": a dot of display is illuminated.
− Bit data "0": a dot of display is not illuminated.
Microprocessor Interface
− 8-bit parallel bi-directional interface with 6800-series or 8080-series.
− SPI (Serial Peripheral Interface) available. (only write operation)
On-chip Low Power Analog Circuit
− On-chip oscillator circuit
− Voltage converter (x3, x4, x5 or x6)
− Voltage regulator (temperature coefficient: -0.05%/°C or external input)
− On-chip electronic contrast control function (64 steps)
− Voltage follower (LCD bias: 1/4 to 1/11)
Operating Voltage Range
− Supply voltage (VDD): 1.8 to 3.3 V
− LCD driving voltage (VLCD = V0 - VSS): 4.0 to 15.0 V
Low power Consumption
− TBD µΑ Typ. (Internal power supply on and display OFF)
Package Type
− Gold bumped chip or TCP
Maximum display area
81 × 128
1
5 Page 
S6B0759
PRELIMINARY SPEC. VER. 1.2
81 COM / 128 SEG DRIVER & CONTROLLER FOR STN LCD
PIN DESCRIPTION
POWER SUPPLY
Table 2. Power Supply Pins
Name
I/O
Description
VDD
VSS1
VSS2
Supply Power supply
Supply Ground VSS1 and VSS2 must be shorted to External wire.
LCD driver supplies voltages
The voltage determined by LCD pixel is impedance converted by an operational amplifier
for application.
V0 Voltages should have the following relationship;
V1 V0 ≥ V1 ≥ V2 ≥ V3 ≥ V4 ≥ VSS
V2 I/O When the internal power circuit is active, these voltages are generated as following table
V3 according to the state of LCD bias.
V4
LCD bias
V1
V2
V3
V4
1/N bias
(N-1) / N x V0 (N-2) / N x V0
(2/N) x V0
(1/N) x V0
NOTE: N = 4 to 11
LCD DRIVER SUPPLY
Table 3. LCD Driver Supply Pins
Name
I/O
Description
C1-
C1+
C2-
C2+
C3+
C4+
C5+
VOUT
VCI
VR
REF
VEXT
O Capacitor 1 negative connection pin for voltage converter
O Capacitor 1 positive connection pin for voltage converter
O Capacitor 2 negative connection pin for voltage converter
O Capacitor 2 positive connection pin for voltage converter
O Capacitor 3 positive connection pin for voltage converter
O Capacitor 4 positive connection pin for voltage converter
O Capacitor 5 positive connection pin for voltage converter
I/O Voltage converter input / output pin
I
Voltage converter input voltage pin
Voltages should have the following relationship: VDD ≤ VCI ≤ V0
I
V0 voltage adjustment pin
It is valid only when on-chip resistors are not used (INTRS = "L")
Selects the external VREF voltage via VEXT pin
I − REF = "L": using the external VREF
− REF = "H": using the internal VREF
I
Externally input reference voltage (VREF) for the internal voltage regulator
It is valid only when REF is "L".
7
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet S6B0759.PDF ] | |
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