LSI LSI-6014
5 digit count-down timer
Features
* 5 digit LCD display
* Range from 1 – 999minute count down
* Fixed time duration by bonding option
* Easy to use and control
* Direct drive 1/2 bias 1/3 duty LCD
* Very low power consumption
* 32768 Crystal oscillator
* Single 1.5V operation.
General Description
The LSI6014 is a universal count down timer with 5 digit display, MMM:SS. The maximum minute
range is from 0-999 minutes. It can also be programmed in fixed timer mode in which many fixed
duration has already been programmed into the LSI6014 and the user can select the timer range by
bonding option.
The LSI6014 directly drive a 1/2 duty 1/3 bias LCD. It has a very low current consumption and is
suitable for timer application.
LSI LSI-6014
2
Functional Description
Power up
At power up, the LSI6014 turns on all LCD and output 3 beep sounds and then display the selected
time range by bonding option.
Key operation
The LSI6014 has five key operation M100, M10, M1, START and RESET keys.
For ease of operation, the final product can have 2 to 5 key operation depending on the usage.
Keys Description Setting Range
START, RESET 2 key fixed time (bonding option) count down timer
START, RESET, M1 3 key count down timer with/without preset value by
bonding option.
1 – 9 minutes
(step 1 minute)
START, RESET,
M1,M10
4 key count down timer with/without preset value by
bonding option.
1 – 99 minutes
(step 1 minute)
START, RESET,
M1,M10,M100
5 key count down timer with/without preset value by
bonding option.
1 – 999 minutes
(step 1 minute)
Press M100/M10/M1 adds 100/10/1 to the setting value.
After the setting is finished, press START starts the countdown timer.
By the end of count down, the system output 10 beep sounds and then display the selected duration
selected by bonding option.
The bonding option OPT[0:4] is used to set the default value. The bonding option default value is
shown in the following table.
OPT0
OPT1
OPT2
OPT3
OPT4
MUNUTES
V V V V V 0
V G V V V 1
V V G V V 2
V G G V V 3
V V V G V 4
V G V G V 5
V V G G V 6
V G G G V 7
V V V V G 8
V G V V G 9
V V G V G 10
V G G V G 11
V V V G G 12
V G V G G 13
V V G G G 14
V G G G G 15
OPT0
OPT1
OPT2
OPT3
OPT4
MUNUTES
G V V V V X
G G V V V 20
G V G V V 25
G G G V V 30
G V V G V 35
G G V G V 40
G V G G V 45
G G G G V 50
G V V V G 55
G G V V G 60
G V G V G 75
G G G V G 90
G V V G G 105
G G V G G 120
G V G G G 150
G G G G G 180
Note : V - Connected to VDD, G - Connected to GND.