Hitachi HCD404669
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.| Part No. | HCD404669 |
|---|---|
| Datasheet | HCD404669 Download |
| Manufacturer |  Hitachi |
| Description | Low-Voltage AS Microcomputers |
| Buy | Stock & Price |
DESCRIPTION
Thus they are 4-bit single-chip microcomputers that are optimal for use in multifunction telephones, cordless telephones, and other communications equipment. HD404669 Series microcomputers have a 32.768 kHz sub-oscillator for realtime clock use, providing a time counting facility, and a variety of power supply modes to reduce current drain. The HD407A4669 is a ZTAT™ microcomputer with on-chip PROM that drastically shortens development time and ensures a smooth transition from debugging to mass production. (The PROM programming specifications are the same as for the 27256 type.) ZTAT™: Zero Turn-Around Time ZTAT is a trademark of Hitachi, Ltd.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: 1 (edge-programmable)
● Clock synchronous 8-bit serial interface: 1
● DTMF...
