NT91214D datasheet(2/23 Pages) ETC1

Part #	NT91214D

Description	Tone/Pulse Dialer

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NT91214/15 Series

V1.0

2

Keyboard Assignments

123

F1

R1

456

F2

R2

789

P

R3

*/T

0

#

RD

R4

C1

C2

C3

GND

1. */T -- In PULSE mode this key works as Pulse

→ DTMF key (T key). In DTMF mode the key works as * key.

*/T key will occupy one memory digit in either use.

2. F1 -- Flash key. The break time is 297 ms or 96 ms (NT91214/15 respectively)

3. F2 -- Flash key for break time 640 ms

4. P

-- Pause key (2.2 seconds)

5. RD -- One key redial key

6. #

-- In PULSE mode this key input is neglected. In DTMF mode this key works as # key.

Block Diagram

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