S-MOS Systems, Inc. • 150 River Oaks Parkway • San Jose, CA 95134 • Tel: (408) 922-0200 • Fax: (408) 922-0238
7
174-3.0
1.0 Overview
1.0 – 1.3
1.1 DESCRIPTION
The SED1560 Series are intelligent CMOS LCD driver-
controllers with the ability to drive alphanumeric and
graphic displays. The SED1560 Series communicates
with a high-speed microprocessor, such as the Intel
80XX family or the Motorola 68XX family, through
either a serial or an 8-bit parallel interface. It stores the
data sent from the microprocessor in the built-in display
data RAM (166
× 65 bits) and generates an LCD drive
signal. These devices incorporate an internal DC/DC
converter to generate the negative voltage needed for
LCD contrast. The controllers feature software contrast
adjustment by command setting.
The three different versions of the SED1560 Series
support the following duty ratios and display sizes:
Model
Duty Ratio
SEG
× COM
SED1560
1/65, 1/64, 1/49, 1/48
102
× 65
SED1561
1/33, 1/32, 1/25, 1/24
134
× 33
SED1562
1/17, 1/16
150
× 17
1.2 FEATURES
• Low-power operation: 8
µA @ 1 kHz, 6V LCD
• 350
µA current consumption during CPU access
@ 200 kHz
• Direct interface to both 80XX and 68XX, 5 MHz,
zero wait-state
• On-chip display data RAM (166
× 65 bits)
• On-chip DC/DC converter for LCD voltage
• On-chip voltage regulator and low-power volt-
age follower
• –.17% /
°C temperature gradient
• On-chip oscillator with external resistor
• 32 levels of contrast adjustment by software
• Supports master/slave operation
• Selectable output configuration
• 2.4V to 6.0V supply voltage
• 3.5V to 16V LCD voltage
• Package: TAB 2 side
T0B
TAB 4 side
TQA
Al pad
D*A
Au bump
D*B
BGA 225 pad
B0A
1.3 SYSTEM BLOCK DIAGRAMS
20 CHAR
× 8 LINES
SED1560
CPU
80xx
68xx
RES
CS
D0 ~ D7
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