Remote Encoder. HT62104 Datasheet

HT62104 Encoder. Datasheet pdf. Equivalent

HT62104 Datasheet
Recommendation HT62104 Datasheet
Part HT62104
Description Infrared Remote Encoder
Feature HT62104; HT62104 Infrared Remote Encoder Feature • Operating voltage: 2.0V ~ 5.0V • Eight data key control.
Manufacture Holtek Semiconductor
Datasheet
Download HT62104 Datasheet




Holtek Semiconductor HT62104
HT62104
Infrared Remote Encoder
Feature
Operating voltage: 2.0V ~ 5.0V
Eight data key control
Two custom codes for product differentiation
Start oscillation after key press for power saving
• LED output to indicate transmission status
Direct 38kHz output frequency infrared LED
modulation
Signal gap time: T= 4 × 192 × (1/455kHz) ≈
4 × 16 × (1/38kHz)
– Signal gap time: 4T
• Low power consumption
• 16-Pin DIP/NSOP package
Applications
Fan remote controls
Audio remote controls
Toy remote controls
Consumer products remote controls
General Description
The HT62104 devices are high performance infrared
remote control encoders which are manufactured in
silicon gate CMOS technology. The HT62104 devices
support eight data key inputs and an LED output to
indicate the transmission status. A signal transmission
is automatically activated when any key data input
lines change status from high to low.
The device generates a signal which is composed of a
Start code, a Custom code and a Data code and sends
the signal to its output pin. This can be provided to an
IR (38kHz carrier) transmission medium.
Block Diagram
VDD
VDD1
VSS
C1
C2
Encoder
Output Driver
VSS1
DOUT
LED
K1
K2
K3
K4
K5 Data Latch
K6
K7
K8
Timing Generator
Internal RC oscillator
Rev. 1.00
1 May 07, 2012



Holtek Semiconductor HT62104
HT62104
Pin Assignment
C1 1
C2 2
K1 3
K2 4
K3 5
K4 6
K5 7
VSS 8
16 V D D
15 D O U T
14 LE D
13 V D D 1
12 V S S 1
11 K 8
10 K 7
9 K6
H T62104
1 6 D IP -A /N S O P -A
Pin Description
Pin Name
Type
VDD/VDD1
VSS
VSS1
C1, C2
K1~K8
DOUT
LED
I
I
O
O
Description
Logic circuit positive power supply.
Logic circuit negative power supply, ground.
IR-LED negative power supply
Custom code inputs.
Remote control key inputs. Internally connected to pull-high resistors.
Serial data output. NMOS open-drain structure.
Transmission indicator. PMOS open-drain structure.
Approximate Internal Connections
C1,C2
VDD
K1 ~ K8
VDD
RR
LED
VSS
VDD
DOUT
VSS
VDD
Rev. 1.00
VSS
2
VSS1
May 07, 2012



Holtek Semiconductor HT62104
HT62104
Absolute Maximum Ratings
Supply Voltage…………………VSS-0.3V to VSS+6.5V
Input Voltage……………………VSS-0.3V to VDD+0.3V
Output Voltage…………………VSS-0.3V to VDD+0.3V
Storage Temperature …………………-55°C to 150°C
Operating Temperature ………………-10°C to 70°C
Note: These are stress ratings only. Stresses exceeding the range specified under “Absolute Maximum Ratings”
may cause substantial damage to the device. Functional operation of this device at other conditions beyond
those listed in the specification is not implied and prolonged exposure to extreme conditions may affect
device reliability.
Electrical Characteristics
Symbol
Parameter
Test Condition
VDD Condition
VDD Operating Voltage
――
IDD Operating Current
3V
No load, C1 and C2 pins
floating
ISTB Standby Current
3V
No load, Input pins
floating, Oscillator stops
VIH
Input High Voltage
(C1~C2, K1~K8)
3V
VIL
Input Low Voltage
(C1~C2, K1~K8)
3V
RPH1 Pull-high Resistor (C1~C2)
3V
RPH2 Pull-high Resistor (K1~K8)
3V
IOH LED Pin Output Source Current 3V VOH= 2.7V
IOL DOUT Pin Output Sink Current 3V VOL= 0.6V
tDW Single Data Bit Width
Ta=25°C, load=1kW for
2.0V~ DOUNT pin
3.6V 0°C < Ta=25°C < 50°C,
load=1kW for DOUNT pin
Min.
2.0
2.1
25
500
-2
300
Typ. -
1.5%
Typ. -
2.3%
Typ.
0.6
0.1
50
900
350
1.688
1.688
Ta= 25°C
Max. Unit
5.0 V
0.9 mA
1.0 μA
V
0.9
75
1500
-5
Typ. +
1.5%
Typ. +
2.3%
V
mA
mA
ms
ms
Rev. 1.00
3 May 07, 2012





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