
Holtek Semiconductor
General Description
The 6-Digital Timer is a camera data optical printer. Displaying and printing of data (Year Month Day/Day Hour: Minute/OFF/Month Day Year/Day Month Year) can be selected by mode selection. Date updating is a fully automatic calendar from the year 1998.1.1 to 2049.12.31.
FEATUREs
Operating voltage: 2.4V~5.5V
Operating current: < 3㎂ at 3.0V
Constant voltage output (1.8V±5%) at 2.4V~5.5V operating for driving lamp (1.8V/40mA)
LCD contrast can not distort at 2.4V~5.5V operating
LCD display drive 1/3 duty, 1/2 bias, frame frequency is 42.67Hz
At power interrupt, data hold up > 1.0s (between VDD and VSS connect a 0.1uF capacitor)
Built-in power on reset function
32K crystal oscillator (Internal capacitor and resistor)
Calendar and time adjustment
Date imprinting modes (Y/M/D, D/H/Min, Imprint off, M/D/Y, D/M/Y)
Mode is selected by cyclically turning
4 film printing times is selectable or external input control (30ms/45ms/60ms/external control)
Direct resetting system
Lamp output time control
Provides module test circuit