FS6232-01 datasheet(7/14 Pages) ETC

7 / 14 page

AMERICAN MICROSYSTEMS, INC.

September 2000

9.18.00

FS6232-01

Two-Way MP Motherboard Clock Generator IC

ISO9001

Table 12: DC Electrical Specifications

Unless otherwise stated, all power supplies = 3.3V ± 5%, no load on any output, and ambient temperature range TA = 0°C to 70°C. Parameters denoted with an asterisk ( * ) represent nominal

characterization data and are not currently production tested to any specific limits. MIN and MAX characterization data are

± 3σfrom typical. Negative currents indicate current flows out of the device.

PARAMETER

SYMBOL

CONDITIONS/DESCRIPTION

MIN.

TYP.

MAX.

UNITS

Overall

fHOST=133MHz; VDD=3.465V, RIREF=475

Ω, IOH=6IREF

260

Supply Current, Dynamic, with Loaded

Outputs

IDD

fHOST=100MHz; VDD=3.465V, RIREF=475

Ω, IOH=6IREF

250

Supply Current, Static

IDDs

PWR_DWN# low, all supplies = 3.465V,

RIREF= 475

Ω, IOH = 6 × IREF

µA

Digital Inputs (PWR_DWN#, SEL133/100#, SS_EN#)

High-Level Input Voltage

VIH

2.0

VDD+0.3

Low-Level Input Voltage

VIL

VSS-0.3

0.8

Input Leakage Current

IIL

-5

µA

Crystal Oscillator Feedback (XIN)

Threshold Bias Voltage

VTH

1.5

High-Level Input Current

IIH

VIH = 3.3V

µA

Low-Level Input Current

IIL

VIL = 0V

-32

µA

Crystal Loading Capacitance *

CL(xtal)

As seen by an external crystal connected to

XIN and XOUT

13.5

22.5

Input Loading Capacitance *

CL(XIN)

As seen by an external clock driver on

XOUT; XIN unconnected

Crystal Oscillator Drive (XOUT)

High Level Output Source Current

IOH

VI (XIN) = 3.3V, VO = 0V

-8.0

Low Level Output Sink Current

IOL

VI (XIN) = 0V, VO = 3.3V

8.7

Current Reference (IREF)

Bias Voltage

VOH

no load

1.1

Short Circuit Output Source Current

IOH

VO = 0V

MREF_P, MREF_N, CK66_0:3, PCI_0:9 Clock Outputs (Type 5 Clock Driver)

IOH min

VDD_M, VDD_66, VDD_P = 3.135V,

VO = 1.0V

-33

High Level Output Source Current

IOH max

VDD_M, VDD_66, VDD_P = 3.465V,

VO = 3.135V

-33

IOL min

VDD_M, VDD_66, VDD_P = 3.135V,

VO = 1.95V

Low Level Output Sink Current

IOL max

VDD_M, VDD_66, VDD_P = 3.465V,

VO = 0.4V

zOL

Measured at 1.65V, output driving low

Output Impedance

zOH

Measured at 1.65V, output driving high

Ω

Tristate Output Current

IOZ

-10

µA

Short Circuit Output Source Current

IOSH

VO = 0V; shorted for 30s, max.

-51

Short Circuit Output Sink Current

IOSL

VO = 3.3V; shorted for 30s, max.

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