LC4100C
Pin Functions
Symbol
I/O
LCD drive outputs
Function
OUT1 to
OUT240
V0
V1
V4
V5
VEE1/VEE2
VSS1/VSS2
DISP
DF
LOAD
L/R
CH120
DF
Data
DISP
OUTn
0
1
1
V0
O
1
0
1
V1
0
0
1
V4
1
1
1
V5
*
*
0
V5
Note: * don’t care (0 or 1). These values must be fixed at either 0 or 1.
I
V0 level drive voltage input
I
I
V1 level drive voltage input
V4 level drive voltage input
All pins with the same name must be set to the same potential.
I
V5 level drive voltage input
– High-voltage block power supply. VEE1 and VEE2 must have the same potential.
– High-voltage block ground. VSS1 and VSS2 must have the same potential.
I
All outputs will be held at a fixed V5 level when this pin is low.
I Alternation input
I Data shift pulse input (falling edge)
I Data shift direction specification input
I High: 120 × 2, low: 240 × 1
Enable inputs and outputs
EIO1
EIO3
EIO4
VDD
VSS
L/R CH120
I/O
H
L
EIO1 → OUT1 →
I
I/O
H
H
EIO1 → OUT1 →
EIO3 → OUT121 →
L
L
EIO1 ← OUT1 ←
EIO1 ← OUT1 ←
L
H
OUT121 ←
— Logic system power supply
— Logic system ground
Shift direction
→ OUT240 → EIO4
→ OUT120
→ OUT240 → EIO4
← OUT240 ← EIO4
← OUT120 ← EIO3
← OUT240 ← EIO4
No. 5279-4/8