EM78P568

8-bit OTP Micro-controller

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* This specification are subject to be changed without notice.

2

01/31/2004

V4.7

CTCSS block

•Operating voltage : 2.7V∼5.5V

•Microphone amplifier (can be used as general OP Amp)

•Microphone mute function

•RX input OP

•Audio BPF (300Hz ~ 3400Hz)

•Sub-audio LPF (60Hz ~ 253Hz) for CTCSS tone detection

•Zero-crossing for detected CTCSS tone frequency output

•CTCSS Tx modulation summing Amp

LCD

•Common driver pins : 4

•Segment driver pins : 32

•1/3 bias

•1/4 duty, 1/2 duty

•16 Level LCD contrast control by software

PACKAGE

•100-pin QFP (EM78P568Q)

78-pin die (EM78P568H)

III. Application

FRS (Family Radio Systems) ,other wireless and portable products,