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PDF NTE1731 Data sheet ( Hoja de datos )
| Número de pieza | NTE1731 | |
| Descripción | Integrated Circuit CMOS 10 Number Pulse Dialer | |
| Fabricantes | NTE | |
| Logotipo |  |
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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), VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.2V
Power Dissipation (Note 2), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW
Maximum Pin Voltage 1 (Note 3), Vin1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V
Maximum Pin Voltage 2 (Note 4), Vin2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.3V
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30° to +50°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C
Note 1. Referenced to GND
Note 2. TA = +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 VDD
Recommended Operating Conditions:
Supply Voltage, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.6V to 6.0V
1 page  
16 9
.260
(6.6)
Max
18
.245
(6.22)
Min
.785 (19.9) Max
.100 (2.54)
.700 (17.7)
.200
5.08)
Max
.300 (7.62)
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet NTE1731.PDF ] | |
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