Ordering number: EN 2658A
PMOS LSI
LM8562
Digital Alarm Clock
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.
Package Dimensions
unit : mm
3029A-DIP28S
[LM8562]
Features
(1)
(2)
(3)
(4)
Duplex LED display (LM8560-use LED panel usable)
Two alarms on chip (600 Hz, 1200 Hz)
Up, down/fast, slow time setting available (easy setting)
12/24-hour mode, 50/60 Hz selectable (provided that it is
impossible to select the combination of 24-hour mode and
60 Hz)
On-chip CR oscillator for backup use at the time of power
failure
Power failure indicator
59-minute alarm/sleep timer
6-minute snooze function
Radio output function
P-channel ED MOS
Pin 28 dual-in-line shrink package
Wide operating voltage/operating temperature range
V
DD
= –14 to –8 V / –20 to +70°C
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
SANYO : DIP28S
Specifications
Absolute Maximum Ratings
at Ta = 25°C, V
SS
= 0 V
Parameter
Supply voltage
Input voltage
Output voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
V
DD
max
V
IN
V
OUT
Pd max
Topr
Tstg
Ta = 70°C
Conditions
Ratings
–17.0 to +0.3
–17.0 to +0.3
–17.0 to +0.3
0.7
–20 to +70
–55 to +125
Unit
V
V
V
W
°C
°C
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
D2897HA (II)/6209TA No.2658-1/7
LM8562
Allowable Operating Conditions
at Ta = –20 to +70°C, V
SS
= 0 V
Parameter
Supply voltage
Standby voltage
Input high-level voltage
Input low-level voltage
Input high-level voltage
Input low-level voltage
Input high-level voltage
Input mid-level voltage
Input low-level voltage
Input high-level voltage
Input low-level voltage
Input level hold time
Input chattering time
Symbol
V
DD
V
ST
V
IH
1
V
IL
1
V
IH
2
V
IL
2
V
IH
3
V
IM
V
IL
3
V
IH
4
V
IL
4
tH
tC
Conditions
min
–14
50/60 Hz INPUT pin
CR OSC pin
3-level input pins
V
SS
–1
V
SS
–1
V
SS
– 0.7
1/2 V
DD
– 1
V
DD
V
SS
– 2
10
10
typ
max
–8
–7.5
V
SS
V
DD
+2
V
SS
V
DD
+ 2
V
SS
1/2 V
DD
+ 1
V
DD
+ 1
V
SS
V
DD
+ 2
Unit
V
V
V
V
V
V
V
V
V
V
V
ms
ms
Input pins other than the above
Electrical Characteristics
at Ta = 25
±
2°C, V
SS
= 0 V, V
DD
= –12 V
Parameter
Output high-level current
Output OFF-state leakage current
Output high-level current
Output OFF-state leakage current
Output high-level current
Output OFF-state leakage current
Operating frequency
Input high-level current
Input low-level current
Input high-level current
Input low-level current
Input high-level current
Input low-level current
Pull-down resistance
Pull-up resistance
Operating current
Power failure detect circuit
OSC stability
OSC accuracy
OSC frequency
Symbol
I
OH
1
I
OF
1
I
OH
2
I
OF
2
I
OH
3
I
OF
3
fop
I
IH
1
I
IL
1
I
IH
2
I
IL
2
I
IH
3
I
IL
3
R
PD
R
PU
I
DD
V
BU
f
S
f
A
f
OSC
Conditions
AM & 10’SHR ag & de pin,
V
OUT
= V
SS
– 2.0 V
V
OUT
= V
DD
Segment output pins other than the
above, V
OUT
= V
SS
– 2.0 V
V
OUT
= V
DD
ALM-1, ALM-2, RADIO OUTPUT pin,
V
OUT
= V
SS
– 2.0 V
V
OUT
= V
DD
50/60 Hz INPUT pin
V
IH
= V
SS
V
IL
= V
DD
CR OSC pin, V
IH
= V
SS
V
IL
= V
DD
3-level input pins, V
IH
= V
SS
V
IL
= V
DD
3-level input pins, V
IN
= 1/2 V
DD
V
IN
= 1/2V
DD
Output : No load
V
DD
= –9 V
±
10%
V
DD
= –9 V
R = 180 kΩ, C = 3300 pF
min
32
typ
max
(Note1)
20
16
(Note1)
20
2
10
2000
10
10
60
20
–120
1.0
0.8
8
–5.0
120
–20
Unit
mA
µA
mA
µA
mA
µA
Hz
µA
µA
µA
µA
µA
µA
MΩ
MΩ
mA
V
%
%
Hz
DC
–10
2
–7.5
–10
–10
15
10
10
2400
Note 1 : The allowable segment current drain is 78 mA max. for AM & 10’SHR ag & de and 39 mA max. for other than AM &
10’SHR ag & de in the range of power dissipation 700 mW.
No.2658-2/7
LM8562
Pin Assignment
Pin Functions
1.
3-Level Input Pins
No.
17
21
22
23
24
26
27
Pin Name
SPEED/POWER DOWN
ALM-DISP SELECT
TIME SET INPUT
ON/OFF INPUT
SLEEP/SNOOZE
MODE SELECT
RT-TIME SET/DIMMER
Input Level
OPEN
Normal
NOP
NOP
NOP
NOP
12-hour mode, 50 Hz
Timer setting inhibit
Normal display
V
SS
Test mode
Alarm 2 display & setting
Slow-down (AC = fast-down)
ON
Sleep display & sleep-in
24-hour mode, 50 Hz
Time setting inhibit
Dimmer display
V
DD
Power-down mode
Alarm 1 display & setting
Slow-up (AC = fast-up)
OFF
Second display & snooze-in
12-hour mode, 60 Hz
Time setting enable
Normal display
NOP : No operation
AC : Pulse input
2.
Input/Output Pins
No.
18
19
20
16
Pin Name
RADIO OUTPUT
ALM-1 OUTPUT
ALM-2 OUTPUT
CR OSC
Input Level
V
SS
—
—
—
V
DD
When not used
Alarm1 OFF
Alarm2 OFF
1-pin OSC circuit
3.
Input Pins
No.25
50/60 Hz INPUT = 50 Hz or 60 Hz clock signal input
No.15, 28 V
SS
, V
DD
= Power supply pin
No.2658-3/7
LM8562
4.
Output Pins
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Pin Name
AM & 10’SHR ag & de
PM & 10’SHR b
10’SHR c & HR e
HR b & g
HR c & d
HR a & f
10’SMIN a & f
10’SMIN b & g
10’SMIN c & d
10’SMIN e & MIN e
MIN b & g
MIN c & d
MIN a & f
COLON OUTPUT
AM 10’SHR ad
PM
HR e
HR g
HR d
HR f
10’SMIN a
10’SMIN b
10’SMIN c
MIN e
MIN g
MIN d
MIN f
COLON
Drive Phase
1
10’SHR eg
10’SHR b
10’SHR c
HR b
HR c
HR a
10’SMIN f
10’SMIN g
10’SMIN d
10’SMIN e
MIN b
MIN c
MIN a
—
2
Display Mode
Select Pin
ALM-DISP SELECT
SLEEP/SNOOZE INPUT
OPEN
V
DD
V
SS
OPEN (V
DD
, V
SS
)
OPEN (V
DD
, V
SS
)
OPEN
OPEN
OPEN
V
SS
V
DD
Display Mode
Time display
Alarm 1
Alarm 2
Sleep
second display
Digit No.
1
AM/PM
10’s hour
AM/PM
10’s hour
AM/PM
10’s hour
Unlit
Unlit
2
Hour
Hour
Hour
0
Minutes
3
10’s
minutes
10’s
minutes
10’s
minutes
10’s
minutes
10’s
seconds
4
Minutes
Minutes
Minutes
Minutes
Seconds
Operation Description
1.
Segment Output
The duplex LED panel can be direct driven by 13 segment output pins.
(Compatible with LM8560-use LED panel)
Colon Output
LED panel
2.
Colon
The drive phase is phase 1. The colon always flashes at 1 Hz rate.
3.
OSC Circuit
By connecting a resistor and a capacitor with the CR INPUT pin, a 2.4 kHz OSC circuit is formed. The clock signal
generated by the 2.4 kHz OSC circuit is used in the following cases.
(1) Used as the clock signal for the time counter, instead of 50/60 Hz INPUT, when the power-down mode is entered.
(2) Alarm sound (1200 Hz or 600 Hz) at the alarm signal output mode
(3) 1/25 duty clock signal while the dimmer is in operation
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).
OFF INPUT
ALARM/SLEEP TIME SET INPUT at the time setting enable mode
4.
.
.
No.2658-4/7
LM8562
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.
Time Setting, Dimmer
The 3 level input RT-TIME SET/DIMMER INPUT pin provides the following functions.
RT-TIME SET/DIMMER INPUT Pin Input
V
DD
OPEN
V
SS
Functions
Time setting enable, normal display
Time, alarm time, sleep timer duration time setting enable
Time setting inhibit, normal display
Time setting enable (except power-down mode)
Time setting inhibit, dimmer display
Display brightness 50 Hz mode: 1/24 duty
60 Hz mode: 1/20 duty
6.
.
.
.
The 3-level input TIME-SET INPUT pin provides the following operations.
TIME-SET INPUT Pin Input
AC (50/60 Hz or more)
V
DD
DC (20 ms min.)
OPEN
AC (50/60 Hz or more)
V
SS
DC (20 ms min.)
Operations
Fast-up
Slow-up
No operation
Fast-down
Slow-down
Setting Contents
1
Fast-up/down
2
Slow-up/down
7.
50/60 Hz rate
Immediately incremented/decremented
±1
and counted up/down at a 2 Hz rate 0.5 to 1.0 second later
ON/OFF INPUT Pin
The 3-level input ON/OFF INPUT pin acts on the ALM-1, 2 RADIO OUTPUT pins as shown below.
Output Pin
ALM-1 OUTPUT
ON-State Condition
Alarm 1 setting time = Current time
Pause
Conditions
Snooze-in
OFF-State Conditions
ON/OFF INPUT = V
SS
ON/OFF INPUT = V
DD
Sleep-in
59 minutes after the alarm 1 is turned ON
ALM-1 OUTPUT = V
DD
ON/OFF INPUT = V
SS
ON/OFF INPUT = V
DD
Sleep-in
59 minutes after the alarm 2 is turned ON
ALM-2 OUTPUT = V
DD
ON/OFF INPUT = V
DD
Power-down mode
Sleep-in
(On-state indicator : OFF state)
ON/OFF INPUT = V
SS
ON/OFF INPUT = V
DD
Power-down mode
(Sleep indicator : OFF state)
ALM-2 OUTPUT
Alarm 2 setting time = Current time
Snooze-in
RADIO OUTPUT
ON/OFF INPUT = V
SS
(ON-state indicator : ON state)
—
Sleep-in
(Sleep indicator : ON state)
—
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
8.
Sleep, Snooze Timer
The 3-level input SLEEP/SNOOZE INPUT pin operates as shown below.
SLEEP/SNOOZE INPUT Pin Input
V
DD
(20 ms min.)
Operation
Snooze-in & seconds display mode
The alarm stops functioning for 6 to 7 minutes.
Seconds display
No operation
Sleep mode
The sleep counter is set to operate for 59 minutes.
Counted down automatically at a 2 Hz rate 1.5 to 2.0 seconds later
Fast/slow, up/down time setting available
.
.
.
.
.
OPEN
V
SS
(20 ms min.)
No.2658-5/7
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