HT9200

HT9200A/HT9200B DTMF Generators Features · Operating voltage: 2.0V~5.5V · Serial mode for the HT9200A · Serial/parallel mode for the HT9200B · Low standby current · Low total harmonic distortion · 3.58MHz crystal or ceramic resonator · HT9200A: 8-pin DIP/SOP package HT9200B: 14-pin SOP package General Description The HT9200A/B tone generators are designed for MCU interfaces. They can be instructed by a MCU to generate 16 dual tones and 8 single tones from the DTMF pin. The HT9200A provides a serial mode whereas the HT9200B contains a selectable serial/parallel mode interface for various applications such as security systems, home automation, remote control through telephone lines, communication systems, etc. Selection Table Function Part No. HT9200A HT9200B Operating Voltage 2V~5.5V 2V~5.5V OSC Frequency 3.58MHz 3.58MHz Interface Serial Serial/Parallel Package 8 DIP/SOP 14 SOP Block Diagram X 1 3 .5 8 M H z C r y s ta l/R e s o n a to r X 2 O s c illa to r D TM F G e n e ra to r D TM F D ATA C LK S e r ia l D a ta In p u t C ir c u it C o n tro l C ir c u it P a r a lle lD a t a In p u tC ir c u it C E S /P D3 D2 D1 D0 Rev. 1.50 1 April 29, 2013 HT9200A/HT9200B Pin Assignment CE 1 X2 2 X1 3 VSS 4 8 VDD 7 D TM F 6 D ATA 5 C LK H T9200A 8 D IP -A /S O P -A Pad Assignment CE X2 1 13 VDD 12 11 D TM F X1 2 VSS 3 D0 4 (0 ,0 ) 10 D A TA 9 C LK 56 D1 D2 78 D 3 S /P CE 1 X2 2 X1 3 VSS 4 NC 5 D0 6 D1 7 14 V D D 13 D TM F 12 D A TA 11 C LK 1 0 S /P ...