NTE1693 Datasheet, PDF (1/3 Pages) NTE Electronics – Integrated Circuit Telephone Pulse Dialer (CMOS)

NTE1693
Integrated Circuit
Telephone Pulse Dialer (CMOS)
Description:
The NTE1693 is a CMOS LSI pulse dialer in a 16–Lead DIP type package with redial which integrates
a ceramic resonator as a frequency reference.
Features:
D Make Ratio: 33/39% Pin–Selectable.
D Pulse Output: “1” True
D Mute Output: “0” True
D 17–Digit Redial with either * or # Input
D Uses a Ceramic Oscillator as a Frequency Reference
D Direct Telephone Line Operation
D Uses either a Standard 2–of–7 Matrix Keyboard or a Single Contact Keyboard
D Mute Signal Generated on Pulse Signal
Absolute Maximum Ratings:
Supply Voltage (Note 1), V_DD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 to +6.2V
Maximum Pin Voltage
V_IN1 (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V
V_IN2 (Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.3V
Maximum Power Dissipation (T_A = +25°C), P_D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW
Operating Temperature Range, T_opr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30° to +60°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C
Note 1. Referenced to GND
Note 2. The maximum applicable voltage or any pin with respect to GND
Note 3. The maximum applicable voltage on any pin with respect to V_DD
Recommended Operating Conditions:
Supply Voltage, V_DD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 to 6.0V