UNIT Supply Voltage VDD V H Level Voltage1 VIH1 50/60Hz -1 V L Level Voltage1 VIL1 50/60Hz VDD+2 V H Level Voltage2 VIH2 Except 50/60Hz -1.5 V L Level Voltage2 VIL2 Except 50/60Hz VDD+2 V 50/60Hz Pin Voltage VAC-IN Sets VSS as Reference VLED V UTC UNISONIC TECHNOLOGIES CO., LTD. 1ΔΆ PIN CONFIGURATIONS AM& ag&de /24 PM& b 2 27 CR c& e /60 Hz /60 Hz 5 24 Snooze LM Hour Set Set 9 20 VDD e &Min e OFF Colon VSS ABSOLUTE MAXIMUM RATINGS (Ta=25 C, Vss=0V) PARAMETER SYMBOL TEST CONDITIONS RATING UNIT Maximum Supply Voltage VDD (max) -15~ +0.3 V Voltage1 VIN1 50/60Hz -15~ +0.3 V Voltage2 VIN2 Except 50/60Hz -15~ +0.3 V Voltage VOUT -15~ +0.3 V Clamp Current lin 50/60Hz -0.4 ~+0.4 ma Allowable Power Dissipation PD (max) Ta=70 C 700 mw Operating Temperature Topr -30 ~ +70 C Storage Temperature Tstg -55 ~ +125 C ALLOWABLE OPERATING RANGES (Ta=25 C, Vss=0V ) PARAMETER SYMBOL TEST CONDITIONS. FEATURES *Single chip P-channel ED MOS LSI *LED direct drive using time division (duplex configuration) *Wide operating power supply voltage range *Built-in alarm function with 24-hour control *Supports changeover between 12-hour AM/PM and 24-hour displays *Built-in battery backup CR oscillator *Users 50Hz or 60Hz as standard frequency *Built-in automatic fast forward function for hour and minute settings *Built-in sleep timer function (maximum intervals of 59 minutes or 1 hours and 59 minutes) *Built-in snooze function supporting repeat use *Equipped with power failure display function *900Hz output for alarm tone SDIP-28 FUNCTIONS *Current time display *Snooze alarm function * timer function (maximum intervals of 59 minutes or 1 hours and 59 minutes) APPLICATIONS * clocks *Clock radios UTC UNISONIC TECHNOLOGIES CO., LTD. As IC himself the VDD pin for the LM8560 is graded to withstand a voltage of 15V.
1 DIGITAL ALARM CLOCK DESCRIPTION The LM8560 is alarm equipped digital clock IC with built-in driver capable of directly driving LED display equipment.