NTE1731

更新时间： 2024-02-03 17:39:35

品牌	Logo	应用领域
NTE		脉冲
页数	文件大小	规格书
5页	32K
描述
Integrated Circuit CMOS 10 Number Pulse Dialer

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NTE1731 数据手册

NTE1731

Integrated Circuit

CMOS 10 Number Pulse Dialer

Description:

The NTE1731 is a CMOS LSI repertory dialer with ten 16–digit number memory storage in a 16–Lead

DIP type package. The pulse and mute signal outputs resulting from keyboard input are like those

of a pulse dialer. The NTE1731 incorporates a 64 x 10 bit RAM which is used to store the ten tele-

phone numbers.

When used in a Public Branch Exchange (PBX) system, a Pause function is provided. This function

suspends dial pulse output upon pause detection (via # key input), and resumes the output after one

of the numeric keys is pressed.

Features:

D Make Ratio: 30/40% Pin Selectable

D Pulse Output: “0” True

D Mute Output: “0” True

D Stores Ten 16–digit Telephone Numbers

D One Temporary Memory and Permanent Memory Storage of Telephone Numbers are Possible

D Uses a CR Oscillator as a Frequency Reference

D Line Operation Off–Hook, Battery Operation On–Hook

D Uses Either a Standard 2–of–7 Matrix Keyboard or a Single Contact Keyboard

D PBX Pause Storage

Absolute Maximum Ratings:

Supply Voltage (Note 1), V_DD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.2V

Power Dissipation (Note 2), P_D. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW

Maximum Pin Voltage 1 (Note 3), V_in1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V

Maximum Pin Voltage 2 (Note 4), V_in2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.3V

Operating Temperature Range, T_opr. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30° to +50°C

Storage Temperature Range, T_stg. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C

Note 1. Referenced to GND

Note 2. T_A= +25°C

Note 3. The Maximum applicable voltage on any pin with respect to GND

Note 4. The maximum applicable voltage on any pin with respect to V_DD

Recommended Operating Conditions:

Supply Voltage, V_DD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.6V to 6.0V

12 3 4 5

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