Operating voltage: 4V~18V standby current power high noise immunity CM

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Operating voltage: 4V~18V standby current power high noise immunity CM

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HT6026 Remote Control Encoder
Operating voltage: 4V~18V standby current power high noise immunity CMOS technology difference codes
transmission words minimum Built-in oscillator needs only resistor Interface with infrared transmission medium Minimal external components
Applications
Burglar alarm system Smoke fire alarm system Garage door controllers alarm system
Security system Cordless telephones Other remote control systems
General Description
HT6026 CMOS encoder designed remote control system. capable encoding bits information which consists address bits data bits. Each address/data input externally trinary programmable external switches. programmable address/data transmitted along with header bits infrared transmission medium upon receipt trigger signal (TE). HT6026 compatible with MC145026.
Assignment
Block Diagram
HT6026
Coordinates
Chip size: 1650 1680 (µm)
Unit:
-598.00 -674.00 -674.00
689.00 433.00 126.00
160.00 670.00 670.00 670.00 670.50 270.00 -84.00 -299.00
-687.00 -687.00 -347.00 172.00 689.50 689.00 689.00 689.00
-674.00 -162.00 -674.00 -449.00 -598.00 -687.00 -342.00 -687.00 -127.00 -687.00
substrate should connected layout artwork.
Description
Name Internal Connection
TRANSMISSION GATE TRANSMISSION GATE OSCILLATOR OSCILLATOR OSCILLATOR CMOS Pull-High CMOS
Description
Input pins address/data AD0~AD6 setting They externally VDD, VSS, left open Negative power supply (GND) Input pins address/data AD7~AD8 setting They externally VDD, VSS, left open Oscillator input Oscillator output Oscillator output Transmission enable, active Encoder data serial transmission output Positive power supply
9~10
AD0~AD6 AD7~AD8 OSC1 OSC2 OSC3 DOUT
HT6026
Approximate internal connection circuits
Absolute Maximum Ratings*
Supply Voltage -0.3V Input Voltage. VSS-0.3 VDD+0.3V Storage Temperature. -50°C 125°C Operating Temperature. -20°C 75°C
*Note: Stresses above those listed under "Absolute Maximum Ratings" cause permanent damage device. These stress ratings only. Functional operation this device these other conditions above those indicated operational sections this specification implied exposure absolute maximum rating conditions extened periods affect device reliability.
Electrical Characteristics
Symbol
ISTB
(Ta=25°C)
Parameter
Operating Voltage Standby Current
Test Conditions
Conditions
Oscillator stops load, FOSC=18kHz
Min.
-1.0 -8.0 0.7VDD
Typ.
2000 -1.7 -14.0 10.0
Max.
3000 0.3VDD
Unit
Operating Current
load, FOSC=22kHz VOH=0.9VDD (Source)
IDOUT
Output Drive Current
VOL=0.1VDD (Sink) VTE=0V
Input Voltage Input Voltage Pull-High Resistance
FOSC
Oscillator Frequency
REXT=10k CEXT=2000PF RS=20k
HT6026
Functional Description
Operation
HT6026 encoder begins one-word transmission cycle upon receipt transmission enable (TE, active low). This cycle will repeat itself long transmission enable held low. Once transmission enable returns high, encoder output completes final word cycle, then stops shown Figure total number transmission cycles allowed always adjusted even number automatically.
Figure Transmission timing
Information word
information word consists periods shown:
Figure Composition information
Address/data waveform
Each programmable address/data externally following three logic states:
Figure Address/Data waveform
HT6026
Address/data programming (preset)
status each address/data individually pre-set logic "high", "low", "floating". transmission enable signal applied, encoder scans transmits status 9-bit address/data serially order AD8. trigger signal applied, chip only consumes standby current which less than (for VDD=5V).
address pins usually pre-set transmit data codes with their particular security codes switches wiring, while data selected push button electronic switches. following figure demonstrates application using HT6026:
transmitted information listed:
Pilot Sync.
floating
HT6026
Transmission enable
Transmission enabled applying signal pin. HT6026 enabled outputs address/data codes from DOUT when "low" more than 65ns.
Flowchart
Oscillator frequency supply voltage
HT6026
Application Circuit
Note: Typical infrared diode: EL-1L2 (KODENSHI CORP.) Typical transmitter: JR-220 (JUWA CORP.)

Operating voltage: 4V~18V standby current power high noise immunity CM

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