Ordering number : EN4346B
CMOS LSI
LC79400D
Dot Matrix LCD Driver
Overview
The LC79400D is a large-scale dot matrix LCD segment
driver LSI. Display data transferred from the controller
(4-bit parallel format) is processed through 80-bit
latching and a LCD drive signal is generated. The
LC79400D can be used in conjunction with common
driver LC7943D (QIP80D) as well as LC79430D
(QIP100D) and LC79431D (QIP100D) to drive a wide-
screen LCD panel.
Package Dimensions
unit : mm
3180-QFP100D
[LC73701M]
Features
鈥?On-chip LCD drive circuit (80 bits)
鈥?Display duty selection ranging from 1/64 to 1/256
鈥?Supports use of chip disable pin for lower large panel
power supply dissipation
鈥?Supports externally supplied bias voltage
鈥?Operating power supply voltage/operating temperature
include
V
DD
(logic block)
V
DD
-V
EE
(LCD block)
: 5 V 鹵10 % / 鈥?0 to +75 擄C
: 12 V to 32 V / 鈥?0 to +75擄C
SANYO: MFP18
鈥?Data transfer clock provides maximum 3.0 MHz and
supports bidirectional shift
鈥?4-bit parallel data input
鈥?CMOS process
鈥?100-pin flat plastic package
Specifications
Absolute Maximum Ratings
at Ta = 25鹵2擄C, V
SS
= 0 V
Parameter
Maximum supply voltage (logic)
Maximum supply voltage (LCD)
Maximum input voltage
Storage temperature range
Symbol
V
DD
max
V
DD
- V
EE
max*
V
I
max
Tstg
1
Conditions
Ratings
鈥?.3 to +7.0
0 to 35
鈥?.3 to V
DD
+ 0.3
鈥?0 to +125
Unit
V
V
V
擄C
Note:1. The voltages V
1
, V
3
, V
4
, V
7
, V
DD
and V
EE
must obey the relationships: V
DD
鈮?/div>
V1 > V3 > V4 > V
EE
, V
DD
鈥?V3
鈮?/div>
7V,
V4 鈥?V
EE
鈮?/div>
7V.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
73096HA (OT)/21593JN A8-9571 No. 4346-1/8
1
2
3
4
5
6
7
8
