July 2006

ASM3P4200A

rev 0.2

Multi-Output Custom Clock Generator

3 of 7

Notice: The information in this document is subject to change without notice.

Pin Description

Pin #

Pin Name

Pin Type

Pin Description

1

XIN / CLK

Input

Crystal connection or external reference frequency input. It can be connected to

a 20MHz Fundamental mode crystal or to an external reference clock.

2

VCC

Power

Connect to +3.3V.

3

CLK1

Output

Clock Output. Refer to the Output Frequency Selection Table for details.

4

S1

Input

Select Bit for Desired Output Frequency at different output pins. Refer to the

Output Frequency Selection Table for details. Has an internal pull down resistor

5

S0

Input

Select Bit for Desired Output Frequency at different output pins. Refer to the

Output Frequency Selection Table for details. Has an internal pull down resistor

6

VCC

Power

Connect to +3.3V.

7

CLK2

Output

Clock Output. Refer to the Output Frequency Selection Table for details.

8

VCC

Power

Connect to +3.3V.

9

CLK3

Output

Clock Output. Refer to the Output Frequency Selection Table for details.

10

VCC

Power

Connect to +3.3V.

11

GND

Power

Connect to ground.

12

CLK4

Output

Clock Output. Refer to the Output Frequency Selection Table for details.

13

VCC

Power

Connect to +3.3V.

14

CLK5

Output

Clock Output. Refer to the Output Frequency Selection Table for details.

15

GND

Power

Connect to ground.

16

VCC

Power

Connect to +3.3V.

17

CLK6

Output

Clock Output. Refer to the Output Frequency Selection Table for details.

18

GND

Power

Connect to ground.

19

CLK7

Output

Clock Output. Refer to the Output Frequency Selection Table for details.

20

GND

Power

Connect to ground.

21

CLK8

Output

Spread Spectrum Clock Output. Refer to the Output Frequency Selection Table

for details.

22

GND

Power

Connect to ground.

23

VCC

Power

Connect to +3.3V.

24

CLK9

Output

Spread Spectrum Clock Output. Refer to the Output Frequency Selection Table

for details.

25

S2

Input

Select Bit for Desired Output Frequency at different output pins. Refer to the

Output Frequency Selection Table for details. Has an internal pull down resistor

26

OE

Input

Output Enable bit. When this pin is made HIGH, the output clocks are enabled.

Has an Internal pull-up resistor

27

GND

Power

Connect to ground.

28

XOUT

Output

Crystal connection. If an external reference clock is used, this pin must be left

unconnected.

Absolute Maximum Ratings

Symbol

Parameter

Rating

Unit

VDD

Power Supply Voltage relative to Ground

-0.5 to +4.6

Input Voltage relative to Ground (Input Pins)

-0.5 to VDD+0.3

V

Storage temperature

-65 to +150

°C

Operating temperature

-20 to +85

°C

Max. Soldering Temperature (10 sec)

260

°C

Junction Temperature

125

°C

Static Discharge Voltage (As per JEDEC STD22- A114-B)

2

KV

Note: These are stress ratings only and are not implied for functional use. Exposure to absolute maximum ratings for prolonged periods of time may affect

device reliability.