HT12D HOLTEK, HT12D Datasheet

REMOTE CONTROL DECODER IC

HT12D

Manufacturer Part Number
HT12D
Description
REMOTE CONTROL DECODER IC
Manufacturer
HOLTEK
Datasheet

Specifications of HT12D

Termination Type
SMD
Ic Generic Number
12
Operating Temperature Min
-20°C
No. Of Bits
12 Bit
Package / Case
18-DIP
Operating Temperature Max
75°C
Rohs Compliant
Yes

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Features
Applications
General Description
The 2
control system applications. They are paired with
Holtek s 2
coder cross reference table). For proper operation, a
pair of encoder/decoder with the same number of ad-
dresses and data format should be chosen.
The decoders receive serial addresses and data from a
programmed 2
by a carrier using an RF or an IR transmission medium.
They compare the serial input data three times continu-
Selection Table
Notes: Data type: L stands for latch type data output.
Rev. 1.10
Part No.
Operating voltage: 2.4V~12V
Low power and high noise immunity CMOS
technology
Low standby current
Capable of decoding 12 bits of information
Binary address setting
Received codes are checked 3 times
Address/Data number combination
Burglar alarm system
Smoke and fire alarm system
Garage door controllers
Car door controllers
HT12D
HT12F
HT12D: 8 address bits and 4 data bits
HT12F: 12 address bits only
12
decoders are a series of CMOS LSIs for remote
VT can be used as a momentary data output.
12
Function
series of encoders (refer to the encoder/de-
12
series of encoders that are transmitted
Address
No.
12
8
No.
4
0
Data
Type
L
VT
1
ously with their local addresses. If no error or un-
matched codes are found, the input data codes are
decoded and then transferred to the output pins. The VT
pin also goes high to indicate a valid transmission.
The 2
informations that consist of N bits of address and 12 N
bits of data. Of this series, the HT12D is arranged to pro-
vide 8 address bits and 4 data bits, and HT12F is used to
decode 12 bits of address information.
2
RC oscillator
RC oscillator
Built-in oscillator needs only 5% resistor
Valid transmission indicator
Easy interface with an RF or an infrared transmission
medium
Minimal external components
Pair with Holtek s 2
18-pin DIP, 20-pin SOP package
Car alarm system
Security system
Cordless telephones
Other remote control systems
Oscillator
12
12
Series of Decoders
series of decoders are capable of decoding
DIN active Hi
DIN active Hi
HT12D/HT12F
12
Trigger
series of encoders
November 18, 2002
18DIP, 20SOP
18DIP, 20SOP
Package

Related parts for HT12D

HT12D Summary of contents

Page 1

... The 2 series of decoders are capable of decoding informations that consist of N bits of address and 12 N bits of data. Of this series, the HT12D is arranged to pro- vide 8 address bits and 4 data bits, and HT12F is used to decode 12 bits of address information. VT Oscillator ...

Page 2

... Block Diagram Note: The address/data pins are available in various combinations (see the address/data table). Pin Assignment Pin Description Internal Pin Name I/O Connection A0~A11 (HT12F) NMOS I Transmission Gate A0~A7 (HT12D) D8~D11 (HT12D) O CMOS OUT DIN I CMOS CMOS OUT OSC1 I Oscillator OSC2 ...

Page 3

... Rev. 1.10 Storage Temperature ............................ 125 C +0.3V Operating Temperature........................... Test Conditions Min. V Conditions DD 2.4 5V Oscillator stops 12V 5V No load, f =150kHz OSC V =4. =0. =4. =0. 3 =51k OSC 3 HT12D/HT12F Ta=25 C Typ. Max. Unit 0 200 400 A mA 1.6 1.6 mA 1 150 kHz November 18, 2002 ...

Page 4

... Output type 12 Of the 2 series of decoders, the HT12F has no data output pin but its VT pin can be used as a momentary data output. The HT12D, on the other hand, provides 4 latch type data pins whose data remain unchanged until new data are received. Part Data ...

Page 5

... The following table provides address/data sequence for various models of the 2 Part No HT12D HT12F Oscillator frequency vs supply voltage Note: The recommended oscillator frequency is f Rev. 1.10 HT12D/HT12F Package VT Pair Encoder Encoder DIP SOP HT12A 18 20 HT12E HT12A 18 20 HT12E 12 series of decoders. Address/Data Bits 4 5 ...

Page 6

... Application Circuits Rev. 1.10 HT12D/HT12F 6 November 18, 2002 ...

Page 7

... Package Information 18-pin DIP (300mil) outline dimensions Symbol Min. A 895 B 240 C 125 D 125 295 I 335 0 Rev. 1.10 HT12D/HT12F Dimensions in mil Nom. Max. 915 260 135 145 20 70 100 315 375 15 7 November 18, 2002 ...

Page 8

... SOP (300mil) outline dimensions Symbol Min. A 394 B 290 C 14 490 Rev. 1.10 HT12D/HT12F Dimensions in mil Nom. Max. 419 300 20 510 104 November 18, 2002 ...

Page 9

... Reel dimensions SOP 20W Symbol Description A Reel Outer Diameter B Reel Inner Diameter C Spindle Hole Diameter D Key Slit Width T1 Space Between Flange T2 Reel Thickness Rev. 1.10 HT12D/HT12F Dimensions in mm 330 1.0 62 1.5 13.0+0.5 0.2 2.0 0.5 24.8+0.3 0.2 30.2 0.2 9 November 18, 2002 ...

Page 10

... P1 Cavity to Perforation (Length Direction) A0 Cavity Length B0 Cavity Width K0 Cavity Depth t Carrier Tape Thickness C Cover Tape Width Rev. 1.10 HT12D/HT12F Dimensions in mm 24.0+0.3 0.1 12.0 0.1 1.75 0.1 11.5 0.1 1.5+0.1 1.5+0.25 4.0 0.1 2.0 0.1 10.8 0.1 13.3 0.1 3.2 0.1 ...

Page 11

... Holtek¢s products are not authorized for use as critical components in life support devices or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at http://www.holtek.com.tw. Rev. 1.10 HT12D/HT12F 11 November 18, 2002 ...

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