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PDF EM55M450 Data sheet ( Hoja de datos )

Número de pieza EM55M450
Descripción TINY-CONTROLLER-BASED MTP/QTP SOUND PROCESSOR
Fabricantes ELAN Microelectronics 
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No Preview Available ! EM55M450 Hoja de datos, Descripción, Manual

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.
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FEATURES
RAM (nibbles)
PROGRAM
ROM(bits)
I/O ports
D/A
OSC
Reset Pin
EM55M450/EM55Q450
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
* This specification are subject to be changed without notice.
4.22.2003 (V1.2) 1

1 page




EM55M450 pdf
EM55M/Q450
TINY-CONTROLLER-BASED MTP/QTP SOUND PROCESSOR
APPLICATION CIRCUIT
www.DataSheet4U.com
Note : It should add a 0.1 uF ceramic capacitor between Cin and ground.
It is suggested to add a 0.1 uF ceramic capacitor between VDD and VSS.
* This specification are subject to be changed without notice.
4.22.2003 (V1.2) 5

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