SN67120 Speech Controller INTRODUCTION SN67120 is a 120 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 120 seconds voice capacity are provided Two 4-bit I/O ports and two 4-bit output 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 1 December 20, 2000 SN67120 Speech Controller PIN ASSIGNMENT Symbol I/O Function Description P20 I/O Bit0 of I/O port 2 P21 I/O Bit1 of I/O port 2 P22 I/O Bit2 of I/O port 2 P23 I/O Bit3 of I/O port 2 P30 I/O Bit0 of I/O port 3 P31 I/O Bit1 of I/O port 3 P32 I/O Bit2 of I/O port 3 P33 I/O Bit3 of I/O port 3 P40 O Bit0 of output port 4 P41 O Bit1 of output port 4 P42 O Bit2 of output port 4 P43 O Bit3 of output port 4 P50 O Bit0 of output port 5 P51 O Bit1 of output port 5 P52 O Bit2 of output port 5 P53 O Bit3 of output port 5 VDD I Positive power supply OSC I Oscillation component connection pin TEST I For testing only RESET I Reset pin GND I Negative power supply VO O D/A current output 2 December 20, 2000 SN67120 Speech Controller ABSOLUTE MAXIMUM RATING Items Symbol Min Max Unit. Supply Voltage VDD -0.3 6.0 V Input Voltage VIN VSS-0.3 VDD+0.3 Operating Temperature TOP Storage Temperature -20.0 TSTG -55.0 V 70.0 o 125.0 o C C ELECTRICAL CHARACTERISTICS Item Sym. Min. Typ. Max. Unit Condition Operating Voltage VDD 2.4 3.0 5.1 V Standby Current ISBY - - 2.0 uA VDD=3V, no load Operating Current IOPR - - 250 uA VDD=3V, no load Input Current of P1 Ii - 3 - uA VDD=3V Drive Current of P2,P3 IOD 1.5 2 - mA VDD=3V,VO=2.4V Sink Current of P2,P3 IOS 2.0 3 - mA VDD=3V,VO=0.4V D/A Output Current IVO 2.0 3.0 4.0 mA VDD=3V,VO=0.7V FOSC - 1.0 - Oscillation Freq. 3 MHz VDD=3V December 20, 2000 SN67120 Speech Controller BONDING PAD SN67120 Note: The substrate MUST be connected to Vss in PCB layout. 4 December 20, 2000 SN67120 Speech Controller DISCLAIMER The information appearing in SONiX web pages (“this publication”) is believed to be accurate. However, this publication could contain technical inaccuracies or typographical errors. The reader should not assume that this publication is error-free or that it will be suitable for any particular purpose. SONiX makes no warranty, express, statutory implied or by description in this publication or other documents which are referenced by or linked to this publication. In no event shall SONiX be liable for any special, incidental, indirect or consequential damages of any kind, or any damages whatsoever, including, without limitation, those resulting from loss of use, data or profits, whether or not advised of the possibility of damage, and on any theory of liability, arising out of or in connection with the use or performance of this publication or other documents which are referenced by or linked to this publication. This publication was developed for products offered in Taiwan. SONiX may not offer the products discussed in this document in other countries. Information is subject to change without notice. Please contact SONiX or its local representative for information on offerings available. Integrated circuits sold by SONiX are covered by the warranty and patent indemnification provisions stipulated in the terms of sale only. The application circuits illustrated in this document are for reference purposes only. SONIX DISCLAIMS ALL WARRANTIES, INCLUDING THE WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PURPOSE. SONIX reserves the right to halt production or alter the specifications and prices, and discontinue marketing the Products listed at any time without notice. Accordingly, the reader is cautioned to verify that the data sheets and other information in this publication are current before placing orders. Products described herein are intended for use in normal commercial applications. Applications involving unusual environmental or reliability requirements, e.g. military equipment or medical life support equipment, are specifically not recommended without additional processing by SONIX for such application. 5 December 20, 2000