有源晶振

8-bit microcontroller with DTMF generator

GENERAL DESCRIPTION The PCD3344A and the PCD3349A provide 2 kbytes and 4 kbytes respectively of Program Memory, 224 bytes of RAM and 20 I/O lines. The PCD3344A and the PCD3349A are microcontrollers which have been designed primarily for telecom applications. They include an on-chip dual tone mul

8-bit microcontroller with DTMF generator

GENERAL DESCRIPTION The PCD3344A and the PCD3349A provide 2 kbytes and 4 kbytes respectively of Program Memory, 224 bytes of RAM and 20 I/O lines. The PCD3344A and the PCD3349A are microcontrollers which have been designed primarily for telecom applications. They include an on-chip dual tone mul

8-bit microcontroller with DTMF generator

GENERAL DESCRIPTION The PCD3344A and the PCD3349A provide 2 kbytes and 4 kbytes respectively of Program Memory, 224 bytes of RAM and 20 I/O lines. The PCD3344A and the PCD3349A are microcontrollers which have been designed primarily for telecom applications. They include an on-chip dual tone mul

8-BIT MICROCONTROLLER WITH DTMF GENERATOR

GENERAL DESCRIPTION The PCD3344A and the PCD3349A provide 2 kbytes and 4 kbytes respectively of Program Memory, 224 bytes of RAM and 20 I/O lines. The PCD3344A and the PCD3349A are microcontrollers which have been designed primarily for telecom applications. They include an on-chip dual tone mul

CMOS System Reset

Outline This IC is a system reset IC developed using the CMOS process. Super low consumption current of 0.25µA typ. has been achieved through use of the CMOS process. Also, detection voltage is high precision detection of ±2. Features 1. Super low consumption current 0.25µA typ. (when VDD