EM22740A 40 Seconds Single Chip Voice/Dual Tone Synthesizer IC with 14-Bit Input Port, 24-Bit I/O Ports and Tiny Controller(40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))
EM22760A 60 Seconds Single Chip Voice/Dual Tone Synthesizer IC with 14-Bit Input Port, 24-Bit I/O Ports and Tiny Controller(60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))