FS6232-01 datasheet(8/14 Pages) ETC

8 / 14 page

AMERICAN MICROSYSTEMS, INC.

September 2000

9.18.00

FS6232-01

Two-Way MP Motherboard Clock Generator IC

ISO9001

Table 13: DC Electrical Specifications, continued

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

HOST_P1:4, HOST_N1:4 Clock Outputs (Type X1 Clock Driver)

Crossover Voltage

RS = 33.2

Ω, RP = 49.9Ω,

RIREF = 475

Ω, IOH = 6 × IREF

%VOH

VO = 0.65V, RIREF = 475

Ω, IOH = 6 × IREF

12.9

High-Level Output Source Current

IOH

VO = 0.74V, RIREF = 475

Ω, IOH = 6 × IREF

14.9

VDD = 3.3V, over settings in Table 7

-7

Output Source Current Tolerance

∆IOH

VDD_I = 3.3V±5%, over settings in Table 7

-12

+12

%IOH

Output Impedance

zOH

∆VO/∆IO, where VO1 = 1.0V, VO2 = VSS,

RIREF = 475

Ω, IOH = 6 × IREF

3000

Ω

Tristate Output Current

IOZ

-10

µA

REF_0 / ISEL_0, REF_1 / ISEL_1 Clock Driver I/O, (Type 3)

CK48_0 / SEL_A, CK48_1 / SEL_B Clock Driver I/O (Type 3)

High-Level Input Voltage

VIH

2.0

VDD+0.3

Low-Level Input Voltage

VIL

VSS-0.3

0.8

High-Level Input Current

IIH

µA

Low-Level Input Current (pull-up)

IIL

VIL = 0.4V

-9

µA

High Level Output Source Current

IOH

VDD_R, VDD_48 = 3.465V, VO = 2.4V

-32

Low Level Output Sink Current

IOL

VDD_R, VDD_48 = 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.

-41

Short Circuit Output Sink Current

IOSL

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

Figure 5: DC Measurement Diagram

IH = 2.0V

IL = 0.8V

OL = 0.4V

OH = 2.4V

DD = 3.3V

Figure 6: AC Measurement Diagram

1.5V

2.4V

0.4V

3.3V

Figure 7: HOST Clock VX Crossover Point

HOST_P

HOST_N

Figure 8: HOST Clock Test Circuit

Test node

From output

under test

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