SN67042
Speech Controller
INTRODUCTION
SN67042 is a 42 seconds single chip voice synthesizer IC which contains I/O pi...
SN67042
Speech Controller
INTRODUCTION
SN67042 is a 42 seconds single chip voice synthesizer IC which contains I/O pins and a tiny controller. By programming through the tiny controller, user’s applications including section combination, trigger modes, output status, and other logic functions can then be easily implemented.
FEATURES
Single power supply 2.4V - 5.1V Built in a tiny controller 42 seconds voice capacity are provided Two 4-bit I/O ports are provided 64*4 bits RAM are provided Maximum 16k program ROM is provided Readable ROM code data Built in a high quality speech synthesizer Adaptive playing speed from 2.5k-20kHz is provided Fixed current D/A output is provided to drive external connected
transistor for sound output Low Voltage Reset
PIN ASSIGNMENT
Symbol P20 P21 P22 P23 P30 P31 P32 P33 VDD OSC TEST GND VO I/O I/O I/O I/O I/O I/O I/O I/O I/O I I I I O Function Description Bit0 of I/O port 2 Bit1 of I/O port 2 Bit2 of I/O port 2 Bit3 of I/O port 2 Bit0 of I/O port 3 Bit1 of I/O port 3 Bit2 of I/O port 3 Bit3 of I/O port 3 Positive power supply Oscillation component connection pin For testing only Negative power supply D/A current output
1
December 20, 2000
SN67042
Speech Controller
ABSOLUTE MAXIMUM RATING
Items Supply Voltage Input Voltage Operating Temperature Storage Temperature Symbol VDD VIN TOP TSTG Min -0.3 VSS-0.3 -20.0 -55.0 Max 6.0 VDD+0.3 70.0 125.0 Unit. V V
o o
C C
ELECTRICAL CHARACTERISTICS
Item Operating Volta...