ICS9133X View Datasheet(PDF) - Integrated Circuit Systems

Part Name

Description

MFG CO.

ICS9133X

32 kHz Motherboard Frequency Generator

Integrated Circuit Systems 

1 2 3 4 5 6 7 8

ICS9133X

Block Diagram for ICS9133X

32.768 kHz

crystal

32.768 kHz

Reference

Clock

Output

Buffers

14.318 MHz

Clock

Generator

14.318 MHz

Recommended External Circuit

3

/

CPU Clock

Peripheral

Clocks

Frequency Select

Output

Buffers

Output

Buffers

2XCPU

CPU

OE

16 MHz

12 MHz

24 MHz

1

2

32.768

kHz

(Note 4)

3

VDDX

0.1µF

4

VDD

5

2.2µF

0.1µF

(Note 3)

6

7

8

9

10

20

19

18

17

16

15

0.1µF

14

13

12

0.1µF

11

Notes:

1. The external components shown should be placed as close to the device as possible.

2. Pins 5 and 15 should be connected together externally. One decoupling capacitor may suffice for both pins.

3. May be part of system decoupling.

4. Crystal load capacitance and feedback bias contained internally on the X1, X2 pins.

3

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