EM55Q450

EM55M/Q450 TINY-CONTROLLER-BASED MTP/QTP SOUND PROCESSOR GENERAL DESCRIPTION EM55M450/EM55Q450 series is a tiny-controller-based voice synthesizer IC which contains all the function of EM55000 series and has an MTP/QTP ROM inside. www.DataSheet4U.com FEATURES EM55M450/EM55Q450 RAM (nibbles) PROGRAM ROM(bits) I/O ports D/A OSC Reset Pin 128 32K*10 204Kx 10 4 I + 12 I/O Green/Traditional DAC by option Ring or Resonator type by option Yes Single power supply 2.4V~5.1V, suitable for 3 batteries application. Port1 and Port2 with wake-up function, Port3.2 with programmable IR (38KHz carry) communication function Power down mode for saving power consumption Single ROM for voice and program data Readable ROM code data One 6-bit timer overflow control Two stacks for subroutine calling 5-bit ASPCM /7-bit PCM voice synthesizer Multiple playing speeds in 1KHz ~22KHz for voice playback Multiple levels of volume control Traditional fixed current D/A output to drive external connected transistor for speaker or direct drive output to speaker. Package type: EM55M450 COB: COB type 4.22.2003 (V1.2) 1 * This specification are subject to be changed without notice. EM55M/Q450 TINY-CONTROLLER-BASED MTP/QTP SOUND PROCESSOR EM55M450 H: dice type EM55M450 P: 40 PDIP package EM55Q450 H: dice type PIN ASSIGNMENT www.DataSheet4U.com EM55M450 P2.3 1 P2.2 2 P2.1 3 P2.0 4 P1.3 5 P1.2 6 P1.1 7 P1.0 8 RESET 9 VPP 10 VSSD 11 OSCO 12 OSCI 13 NC 14 NC 15 NC 16 NC 17 NC 18 NC 19 ...