S1D15714 Datasheet, PDF (4/65 Pages) Epson Company – a single chip MLS driver

S1D15714 Series
1. DESCRIPTION
The S1D15714 Series is a single chip MLS driver for
dot matrix liquid crystal displays which can be directly
connected to the microcomputer bus. It accepts the 8-
bit parallel or serial display data from the microcomputer
to store the data in the on-chip display data RAM, and
issues liquid crystal drive signals independently of the
microcomputer.
The S1D15714 Series incorporates a display data RAM
(65 × 168 bits), 1 bit of the on-chip RAM respond to
one-dot pixels.
The S1D15714 Series features 65 common output
circuits and 168 segment output circuits. A single chip
provides a display of 10 characters by 4 lines with 65 ×
168 dots (16 × 16 dots) and display of 14 characters by
5 lines by the 12 × 12 dot-character font.
The S1D15714 Series incorporates the analog
temperature sensor circuit that changes output voltage
depending on ambient temperature and can be used to
constitute a system to provide optimum LCD contrast
throughout a wide temperature range without need for
use of supplementary parts such as the thermistor, under
controls of a micro computer.
Display data RAM read/write operations do not require
operation clock from outside, thereby ensuring operation
with the minimum current consumption. Furthermore,
it incorporates a LCD-drive power supply characterized
by low power consumption and a CR oscillator circuit
for display clock; therefore, the display system of a
handy and high-performance instrument can be realized
by use of the minimum current consumption and
minimum chip configuration.
Series specifications
2. FEATURES
• Direct RAM data display by display data RAM
Normally white display is in normal mode
RAM bit data
“1” : On and black
“0” : Off and white
• RAM capacity
65 × 168 = 10,920 bits
• Liquid crystal drive circuit
65 common outputs and 168 segment outputs
• High-speed 8-bit MPU interface (directly connectable
to the MPUs of both 80/68 series) /serial interface
possible
• A variety of command functions
n-line reversal, display data RAM address control,
display ON/OFF, display normal/reverse rotation,
display all lighting ON/OFF, liquid crystal drive
power supply circuit control, display clock built-in
oscillator circuit control
• MLS drive technology
Built-in high precision voltage regulation function
• High precision CR oscillator circuit incorporated
• Low power consumption
• Built-in temperature sensor circuit
• Power supply
Logic power supply 1: VDI – VSS = 2.7 V to 3.3 V
Logic power supply 2: VDD – VSS = 2.7 V to 5.5 V
Liquid crystal drive power supply: V3 – VSS = 5.6 to
16.2 V
Boosting power supply: VDD2 – VSS = VDD to 5.5 V
• Wide operation temperature range: –40 to 85°C
• CMOS process
• Shipping form : Bare chips
• Light and radiation proof measures are not taken in
designing.
Product name Form of shipping Chip thickness
S1D15714D00B000
Bare chip
0.625mm
Rev. 1.0
EPSON
1