FS6370-01 View Datasheet(PDF) - AMI Semiconductor

Part Name

Description

Manufacturer

FS6370-01

EEPROM Programmable 3-PLL Clock Generator IC

AMI Semiconductor 

FS6370-01

EEPROM Programmable 3-PLL Clock Generator IC

1.0 Features

• Just-in-time customization of clock frequencies via

internal non-volatile 128-bit serial EEPROM

• I2Cä-bus serial interface

• Three on-chip PLLs with programmable Reference

and Feedback Dividers

• Four independently programmable muxes and post

dividers

• Programmable power-down of all PLLs and output

clock drivers

• Tristate outputs for board testing

• One PLL and two mux/post-divider combinations

can be modified via SEL_CD input

• 5V to 3.3V operation

• Accepts 5MHz to 27MHz crystal resonators

• ROM-based device available for cost reduction mi-

gration path – contact your AMI sales representative

for more information

2.0 Description

The FS6370 is a CMOS clock generator IC designed to

minimize cost and component count in a variety of elec-

tronic systems. Three EEPROM-programmable phase-

locked loops (PLLs) driving four programmable muxes

and post dividers provide a high degree of flexibility.

An internal EEPROM permits just-in-time factory pro-

gramming of devices for end user requirements.

Figure 1: Pin Configuration

VSS 1

SEL_CD 2

PD/SCL 3

VSS 4

XIN 5

XOUT 6

OE/SDA 7

VDD 8

16 VDD

15 CLK_A

14 VDD

13 CLK_B

12 CLK_C

11 VSS

10 CLK_D

9 MODE

16-pin (0.150”) SOIC

Figure 2: Block Diagram

XIN

XOUT

Reference

Oscillator

MODE

PD/SCL

OE/SDA

Power Down

Control

I2C-bus

Interface

EEPROM

PLL A

PLL B

PLL C

Mux A

Post

Divider A

Mux B

Post

Divider B

Mux C

Post

Divider C

CLK_A

CLK_B

CLK_C

SEL_CD

Mux D

Post

Divider D

CLK_D

FS6370

I2C is a licensed trademark of Philips Electronics, N.V. American Microsystems, Inc., reserves the right to change the detail specifications as may be required to permit improvements in the design of

its products.

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