Holtek Semiconductor HT62104
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. 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.APPLICATIONS
● Fan remote controls● Audio remote controls
● Toy remote controls
● Consumer products remote controls
GENERAL DESCRIPTION
A signal transmission is automatically activated when any key data input lines change status from high to low. 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 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 PinDESCRIPTION
Pin Name Type VDD/VDD1 — VSS — VSS1 — C1, C2 I K1~K8 I DOUT O LED ODESCRIPTION
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.