(China (Mainland))
Product Summary
The HD407A4669H is a low-voltage AS microcomputer with on-chip DTMF generation circuit. The HD407A4669H incorporates a DTMF generation circuit, two comparators, and a serial interface on chip. The HD407A4669H also provides input and output pins with large current handling capacities.
Parametrics
HD407A4669H absolute maximum ratings: (1) Supply voltage Vcc: -0.3 to 7V; (2) Programming voltage: -0.3 to +14V; (3) Pin voltage: -0.3 to (Vcc +0.3V) : (4) Total permissible input current (to chip) : 100mA; (5) Total permissible output current (from chip) : 50mA; (6) Maximum input current (to chip) : 4mA; (7) Operating temperature: -20 to +75°C; (8) Storage temperature: -55 to +125°C.
Features
HD407A4669H features: (1) 1,152-digit × 4-bit RAM; (2) I/O pins: 47; (3) Timer counters: 3; (4) Input capture: one 8-bit channel; (5) Timer outputs: 2 (with PWM output capability) ; (6) Event input: 1 (edge-programmable) ; (7) Clock synchronous 8-bit serial interface: 1; (8) DTMF generation circuit; (9) System clock oscillator Ceramic oscillator, crystal oscillator, or external clock operation possible.
Diagrams
