Silan

Semiconductors

SC91310 Series

HANGZHOU SILAN MICROELECTRONICS CO.,LTD.

Rev: 2.1

2002.12.03

2

BLOCK DIAGRAM

KEYBOARD

INTERFACE

15

16

17

18

1

2

3

4

D/A

CONVERTER

SYSTEM CLOCK

GENERATION

10

5

13

7

8

READ/WRITE

COUNTER

RAM

LOCATION

LATCH

ROW&COLUMN

PROGRAMMABLE

COUNTER

DATA LATCH&

DECODER

CONTROL

LOGIC

PULSE

CONTROL

LOGIC

12

9

11

R1

R2

R3

R4

C1

C2

C3

C4

DTMF

DP

T/P MUTE

XT

XT

B/M

MODE

HKS

ABSOLUTE MAXIMUM RATINGS

Characteristic

Symbol

Value

Unit

DC Supply Voltage

-0.3~7.0

V

V

V

V

Input / Output Voltage

V

Power Dissipation

120

mW

Operating Temperature

Topr

-20~+70

°C

Storage Temperature

Tstg

-55~+125

°C

Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and

reliability of the device.