HT12M View Datasheet(PDF) - Holtek Semiconductor
Part Name
Description
Manufacturer
HT12M Datasheet PDF : 6 Pages
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D.C. Characteristics
Symbol
Parameter
VDD
Operating Voltage
ISTB
Standby Current
IDD
Operating Current
IAUD
AUD output current
VT Output Source Current
IVT
VT Output Sink Current
VIH
High Input Voltage
VIL
Low Input Voltage
fOSC
Oscillator Frequency
Test Conditions
VDD
Conditions
¾
¾
5V OSC stop amp off
5V OSC stop amp on
5V
No load
fOSC=150kHz
5V Transistor B load
5V VOH=4.5V
5V VOL=0.5V
5V
¾
5V
¾
5V ROSC=820kW
HT12M
Min. Typ. Max. Unit
2.4
¾
5
V
¾
0.1
1
mA
¾
10
20
mA
¾
1.5
2
mA
3
5
¾
mA
-2
-3
¾
mA
2
3
¾
mA
3.5
¾
5
V
0
¾
1
V
¾
190
¾
kHz
Functional Description
Built-in inverter amp
AM P
R . In p u t
D a ta O u t
Single tone has 4 second total length, dual tone has 1
second total length.
1 sec
3 sec
Trigger mode
VT
O n e -s h o t
O n e -s h o t
T w ic e
W e s tm in s te s
tu re
3 .2 s e c
The Ding-Dong sound: is determined by the D8~D11 pins on the HT12E. While the Re-trigger/Non-trigger function is
determined by the D11 pin on the HT12E.
D11 D10
D9
D8
Sound
Notes
1
0
0
0 Me
1
2
0
0
1 Me Do
2
3
0
1
0 Me Do ¾ Me Do
4
0
1
1 Me/Do
Repeat
Single tone
5
1
0
0 Me Do Re So ¾ So Re Me Do Westminster tune
6
1
0
1 Me/Do Do/So
Double tone
7
1
1
0 So Re Me Do
4
8
1
1
1 Me/Do Do/So ¾ Me/Do Do/So
Dual Tone-repeat
Section time: 0.8secretary ´ 2 = 1.6sec
Rev. 1.00
3
March 25, 2002
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