(China (Mainland))
Product Summary
The HT9215A is a 15-Memory Tone/Pulse Dialer. It is a CMOS LSI for telecommunication systems. The HT9215A provides Redial,4 one-touch and 10 two-touch memory dials for speed dialing in either pulse or tone mode.
Parametrics
HT9215A absolute maximum ratings: (1)Supply Voltage: -0.3V to 6V; (2)Input Voltage: VSS-0.3 to VDD+0.3V; (3)Storage Temperature: -50℃ to 125℃; (4)Operating Temperature: -20℃ to 75℃.
Features
HT9215A features: (1)Universal specification; (2)Operating voltage: 2.0V to 5.5V; (3)Low standby current; (4)Low memory retention current: 0.1μA (Typ.); (5)Tone/pulse switchable; (6)Interface with LCD driver; (7)32 digits for redialing; (8)Pause and P→T key for PBX; (9)4×5 keyboard matrix; (10)Pulse rate control; (11)Make/Break ratio control; (12)3.58MHz crystal or ceramic resonator; (13)Hand-free control; (14)Hold-line control; (15)Pause, P→T can be saved for redialing; (16)Lock function; (17)Keytone function; (18)Memory number: 15 memories.
Diagrams
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