HT16514
Pin Name
I/O
O
Description
Clear signal for extension digit driver, active low.
The digit data stored in the latch register of the extension driver are output when this signal is
CL
²Hi², if this signal is ²Low², extension driver outputs are ²Low².
LE
O
Latch enable signal for extension digit driver.
Output Pins
G1~G24
S1~S80
Power System
VDD
O
O
High-voltage output, grid output pins.
High-voltage output, segment output pins.
Pins for logic circuit
¾
¾
¾
¾
LGND
LGND is ground pin for logic circuit
Power supply pins for VFD driver circuit
PGND is ground pin for VFD driver circuit
VH
PGND
Table 1-1. Duty Ratio Setting
DS0
DS1
Duty Ratio
0
0
1
1
0
1
0
1
1/16 (# of grid = 16)
1/24 (# of grid = 24)
1/20 (# of grid = 20)
1/40 (# of grid = 40)*
Note: * When setting to 1/40 duty mode, use the external extension grid driver.
Table 1-2. Segment Setting: 2 Line Display (N=1)
RL1
0
RL2
0
Table No.
Table 1-3
Table 1-4
Table 1-5
Table 1-6
0
1
1
0
1
1
Rev. 1.00
4
October 4, 2006
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
