Description
ECG1691 Telephone Pulse Dialer w/Redial ~ 18 Pin DIP
ECG1691 Telephone Pulse Dialer w/Redial ~ 18 Pin DIP
The ECG1691 is a monolithic CMOS integrated circuits in an 18–Lead DIP type package
that provide all the features required for implementing a pulse dialer with redial.
Functions:
- Mute Output Logic “0”
- Pulse Output Logic “0”
- RC Oscillation for Reference Frequency
- Designed to Operate Directly from the Telephone Line
- Used CMOS Technology for Low Voltage, Low Power Operation
- Power Up Clear Circuitry
- NTE1691 Pin2: VREF
Features:
- Uses Either a Standard 2 of 7 Matrix Keyboard with Negative True Common or the Inexpensive Form A–Type Keyboard
- Make/Break Ratio Can Be Selected
- Redial with * or #
- Tone Signal Output or On–Chip Reference Voltage by Bonding Option on Chip
- 10pps/20pps Can be Selected
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
- DC Supply Voltage, VCC: 6.2V
- Voltage on Any Pin, VIN: VCC+0.3, GND–0.3V
- Power Dissipation, PD: 500mW
- Operating Temperature Range, Topr: –30° to +60°C
- Storage Temperature Range, Tstg: –65° to +150°C
