LM8562 Sanyo Semiconductor Corporation, LM8562 Datasheet

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LM8562

Manufacturer Part Number
LM8562
Description
Digital alarm clock
Manufacturer
Sanyo Semiconductor Corporation
Datasheet
Ordering number: EN 2658A
Overview
The LM8562 is a digital clock-use LSI having features such as
easy setting, two alarms. Since the LM8562 is designed to be
able to direct drive an LED panel of duplex type, the package
in which the LM8562 is placed is a 28-pin shrink DIP with a
small mounting area.
Features
(1) Duplex LED display (LM8560-use LED panel usable)
(2) Two alarms on chip (600 Hz, 1200 Hz)
(3) Up, down/fast, slow time setting available (easy setting)
(4) 12/24-hour mode, 50/60 Hz selectable (provided that it is
(5) On-chip CR oscillator for backup use at the time of power
(6) Power failure indicator
(7) 59-minute alarm/sleep timer
(8) 6-minute snooze function
(9) Radio output function
(10) P-channel ED MOS
(11) Pin 28 dual-in-line shrink package
(12) Wide operating voltage/operating temperature range
Specifications
Absolute Maximum Ratings at Ta = 25°C, V
Supply voltage
Input voltage
Output voltage
Allowable power dissipation
Operating temperature
Storage temperature
impossible to select the combination of 24-hour mode and
60 Hz)
failure
V
DD
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
= –14 to –8 V / –20 to +70°C
Parameter
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
V
Symbol
Pd max
DD
V
Topr
Tstg
V
OUT
IN
max
Ta = 70°C
SS
= 0 V
Conditions
Package Dimensions
unit : mm
3029A-DIP28S
Digital Alarm Clock
[LM8562]
D2897HA (II)/6209TA No.2658-1/7
–17.0 to +0.3
–17.0 to +0.3
–17.0 to +0.3
–55 to +125
–20 to +70
Ratings
0.7
SANYO : DIP28S
LM8562
PMOS LSI
Unit
°C
°C
W
V
V
V

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LM8562 Summary of contents

Page 1

... The LM8562 is a digital clock-use LSI having features such as easy setting, two alarms. Since the LM8562 is designed to be able to direct drive an LED panel of duplex type, the package in which the LM8562 is placed is a 28-pin shrink DIP with a small mounting area. Features (1) Duplex LED display (LM8560-use LED panel usable) ...

Page 2

... Pull-up resistance Operating current Power failure detect circuit OSC stability OSC accuracy OSC frequency Note 1 : The allowable segment current drain max. for AM & 10’SHR ag & de and 39 mA max. for other than AM & 10’SHR ag & the range of power dissipation 700 mW. LM8562 SS Symbol Conditions ...

Page 3

... ALM-1 OUTPUT 20 ALM-2 OUTPUT 16 CR OSC 3. Input Pins No.25 50/60 Hz INPUT = clock signal input No.15 Power supply pin SS DD LM8562 V SS Test mode Normal Alarm 2 display & setting NOP Slow-down (AC = fast-down) NOP ON NOP Sleep display & sleep-in NOP 24-hour mode 12-hour mode ...

Page 4

... Power-Down Mode (1) Since the backup OSC circuit holds the current time, the LM8562 starts operating immediately. (2) The snooze function stops operating. (3) The RADIO OUTPUT pin is brought to the OFF state. (4) The control input is inhibited (except the following). ...

Page 5

... Alarm The LM8562 contains two alarms on a 24-hour basis. Alarm 1 ..... Superposition of 600 Hz and 1 Hz Alarm 2 ..... Superposition of 1200 Hz and 1 Hz 6-minutes snooze The alarm output duration time is 59 minutes. The 59-minute duration counter is common to the alarm 1, alarm2, and sleep timer. 6. Time Setting, Dimmer The 3 level input RT-TIME SET/DIMMER INPUT pin provides the following functions ...

Page 6

... Hz INPUT Pin The LM8562 contains a Schmitt circuit so that a simple CR filter can be used to remove the noise of commercial frequency 50/60 Hz. 10. 12/24-Hour Mode, 50/60 Hz Select The 3-level input MODE SELECT pin provides the following combinations. MODE SELECT Pin Input V 12-hour mode & ...

Page 7

... SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of December, 1997. Specifications and information herein are subject to change without notice. LM8562 No.2658-7/7 ...

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