IL8560 INTEGRAL [Integral Corp.], IL8560 Datasheet

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IL8560

Manufacturer Part Number
IL8560
Description
CLOCK CIRCUIT
Manufacturer
INTEGRAL [Integral Corp.]
Datasheet
FEATURES
OPERATION DESCRIPTION
50Hz/60Hz Input:
50/60 select input:
Display mode select input
(alarm display/sleep display);
CR Input:
LED direct drive by time-sharing
(duplex)
Wide operating voltage range
Alarm on a 24-hour basis
Time format: 12-hour AM/PM and 24-
hour
On-chip RC-oscillator for battery
backup
50Hz or 60Hz is usable as the
reference frequency
Possible to automatically advance
"hours", "minutes"
Sleep timer (max. 59 minutes or 1
hour 59 minutes)
Repeatedly usable snooze
Power failure indicator
900Hz output for alarm tone
Bare chip or SOP-28 are available
Pin-to-Pin replacement with Sanyo
LM8560
The on-chip Schmitt trigger circuit allows a simple RC filter at the
input to remove possible line voltage transients. An internal pull-up
resister is provided.
Then AC power-down occurs, the time counter enters the "hold" mode and
the on-chip clock oscillator starts operating immediately. If there is no input at
"50/60 Hz input" during 3-clock period, this oscillator controls the time counter
advance instead of "50/60Hz input". The values of CR determine the
frequency of the on-chip clock oscillator. All segment outputs are off during
backup oscillator operation.
NOTE: If the backup OSC is used at the power-down mode, "50/60Hz
input" must be open or at Vss level.
Connecting "50/60Hz select" to Vss enables 50Hz operation. For 60Hz
operation, "50/60Hz select" is left unconnected: Pull-down to V
by the internal pulldown resister.
The internal pull-down resistor allows the use of 2 SPST (single-pole single-
throw) switches to select 4 display modes listed in Table 1.
CLOCK CIRCUIT
IL8560
FUNCTIONS
1
Real time display
Alarm with snooze
Sleep timer (max. 59 minutes or 1 hour 59
minutes)
PIN CONNECTION
BELMICROSYSTEMS
I N T E G R A L
DD
is provided

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IL8560 Summary of contents

Page 1

... Pull-down the internal pulldown resister. Display mode select input The internal pull-down resistor allows the use of 2 SPST (single-pole single- (alarm display/sleep display); throw) switches to select 4 display modes listed in Table 1. IL8560 CLOCK CIRCUIT FUNCTIONS • Real time display • ...

Page 2

... A simple LPF can be used to turn this alarm signal into DC signal as required. • Snooze input: By momentarily connecting this pin to V inhibited for minutes, after which used repeatedly for 1 hour 59 minutes. An IL8560 Digit No.l Digit No.2 10's hour, AM/PM Hour ...

Page 3

... Characteristic Pins High Level Output 1 Voltage 16,17 2-14 Low Level Output Voltage 1 16,17 2-14 Output Leakage Current 25 Output Leakage Current 18,19,21- 24,26,28 Supply Current 20 IL8560 inhibits the alarm output momentarily. An internal SS at the sleep output on-state, the sleep output is inhibited Symbol OUT dmax ...

Page 4

... IL8560 BLOCK DIAGRAM 4 BELMICROSYSTEMS ...

Page 5

... IL8560 SAMPLE APPLICATION CIRCUIT FOR CLOCK RADIO USE (+ power supply) SAMPLE APPLICATION CIRCUIT FOR CLOCK USE (-power supply) 5 BELMICROSYSTEMS ...

Page 6

... HR a & 10'S MIN ,a & 10'S MIN b & 10'S MIN c & 10'S MIN e & 11 MIN b & MIN c & MIN a & COLON OUT IL8560 X y Pad Pad Name No. -1533 15 Vss 786 -1533 16 ALARM OUT -1533 17 SLEEP OUT 1306 -1533 ...

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