EM22720A 20 Seconds Single Chip Voice/Dual Tone Synthesizer IC with 14-Bit Input Port, 24-Bit I/O Ports and Tiny Controller(20秒语音容量的单片语音/双音调合成器(带14位输入端口,24位I/O端口和微型控制器))
EM22730A 30 Seconds Single Chip Voice/Dual Tone Synthesizer IC with 14-Bit Input Port, 24-Bit I/O Ports and Tiny Controller(30秒语音容量的单片语音/双音调合成器(带14位输入端口,24位I/O端口和微型控制器))