IL91214A, IL91214B

April 2013, Ver. 02

PIN DESCRIPITION

KEYBOARD ASSIGNMENT

1. */T

– At Pulse mode this key works as Pulse -> DTMF key (T key), at 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 297ms

3. F2

– Flash key for break time 640ms

4. P

– Pause key (2.2 seconds)

5. RD

– One key redial key

6. # - At pulse mode this key input is neglected, at DTMF mode this key works as # key.

R4

HK

MODE IN

OSC I

OSC O

XMIT MUTE

R3

R2

R1

C 3

C 2

C 1

DP

01

02

03

04

05

06

11

12

13

07

08

Vss

Vdd

TONE

09

10

14

15

16

R4

HK

MODE IN

OSCI

OSCO

XMIT MUT E

R3

R2

R1

C3

C2

C1

DP

01

02

03

04

05

06

12

13

14

07

08

Vss

Vdd

T ONE

09

10

11

15

16

17

18

MODE OUT

KT

R4

R3

R2

RD

#

0

*/T

P

9

8

7

F2

6

5

4

F1

3

2

1

R1

C1

C2

C3

C4

Pin #

Designation

Description

A

B

1

1

HK

Hook switch input

2

2

MODE IN

Hz,

М/В = 1/2,

MODE IN = floating mode,

20 Hz,

М/В = 1/2

3

3

OSCI

Oscillator input

4

4

OSCO

Oscillator output

5

5

Ground

6

6

Supply output

7

7

TONE

Tone dialing output

8

8

XMIT MUTE

Dialing transmission mute output

9

MODE OUT

Mode output pin

10

KT

Key-in tone output

9

11

DP

Dialing pulse output

10

12

C1

Keyboard column input

11

13

C2

Keyboard column input

12

14

C3

Keyboard column input

13

15

R1

Keyboard row input

14

16

R2

Keyboard row input

15

17

R3

Keyboard row input

16

18

R4

Keyboard row input