HCD404669 Datasheet (Hitachi Semiconductor) - Low-Voltage AS Microcomputers

HCD404669, Low-Voltage AS Microcomputers

The HD404669 Series microcomputers incorporate a DTMF generation circuit, two comparators, and a serial interface on chip.

They also provide input and output pins with large current handling capacities.

Thus they are 4-bit single-chip microcomputers that are optimal for use in multifunction telephon

HCD404669 Features

* 1,152-digit × 4-bit RAM

* I/O pins: 47  High-current I/O pins (source: 10 mA max.): 4  High-current I/O pins (sink: 15 mA max.): 5

* Timer counters: 3

* Input capture: one 8-bit channel

* Timer outputs: 2 (with PWM output capability)

* Event input: