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469
SED1600
CMOS 80-SEGMENT LCD DRIVER
80-bit High Voltage Output
1/100 to 1/300 Display Duty
I
FEATURES
Low-power CMOS technology
80-bit segment (column) driver
High-speed 4-bit data bus with enable chain tech-
nology
Duty cycle ............................... 1/100 to 1/300
Shift clock frequency .............. 6MHz max
Ability to adjust offset bias of the LCD source from
V
DD
I
DESCRIPTION
The SED1600 is a dot matrix LCD segment (column) driver for driving a high-capacity LCD panel at duty
cycles higher than 1/100 (up to 1/300). The LSI has a wide range of LCD driving voltages. Due to the
architecture of the SED1600, the LCD driving voltage, V0, is isolated from the V
DD
supply. This provides the
ability to adjust the offset bias independently of V
DD
. These unique features allow the SED1600 to interface
with a variety of LCD panels. The SED1600 does not require a controller to output an enable signal to
implement daisy chain technology. This provides for easy interfacing with the LCD controllers such as the
SED1330, SED1351, SED1335, or the SED1341.
The SED1600 is used in conjunction with the SED1610 (86-row driver), SED1630 (68-bit row driver),
SED1631 (100-row driver), SED1632 (86-bit row driver), SED1633 (100-bit row driver), and SED1634 (100-
bit driver) to drive a large-capacity dot matrix LCD panel.
Daisy chain enable support
Selectable output shift direction
No enable signal by controller is required
Wide range of LCD voltage .... –12 to –28V
Supply voltage ........................ 5.0V
±
10%
Package..... QFP5-100 pin (F
AA
)
DIE:
Al pad chip (D
AA
)
Au bump (D
AB
)
I
SYSTEM BLOCK DIAGRAM
SED1600F
(n)
SED1600F
(1)
LCD
CONTR
n*80 SEG
DUTY: 1/100 ~ 1/300
80
80
D0 ~ D3
XSCL
LP, FR
YSCL
YD
100~300
ROW
DRIVER