AMERICAN MICROSYSTEMS, INC.
September 2000
9.18.00
7
FS6233-01
FS6233-01FS6233-01
FS6233-01
Motherboard Clock Generator IC
Motherboard Clock Generator ICMotherboard Clock Generator IC
Motherboard Clock Generator IC
ISO9001
ISO9001ISO9001
ISO9001
Tabl e 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 ± 3σ f rom typical. Negative currents indicate current flows out of the device.
PARAMETER SYMBOL CONDITIONS/DESCRIPTION MIN. TYP. MAX. UNITS
Overall
Supply Current, Dynamic, with Loaded
Outputs IDD
fHOST = 133MHz; all supplies = 3.465V,
RIREF= 475Ω, IOH = 6 × IREF mA
Supply Current, Static IDDs
PWR_DWN# low, all supplies = 3.465V,
RIREF= 475Ω, IOH = 6 × IREF µA
Digital Inputs (PWR_DWN#, SEL133/100#, SS_EN#)
High-Level Input Voltage VIH 2.0 VDD+0.3 V
Low-Level Input Voltage VIL VSS-0.3 0.8 V
Input Leakage Current IIL -5 +5 µA
Crystal Oscillator Feedback (XIN)
Threshold Bias Voltage VTH 1.5 V
High-Level Input Current IIH VIH = 3.3V 32 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 18 22.5 pF
Input Loading Capacitance * CL(XIN)
As seen by an external clock driver on
XOUT; XIN unconnected 36 pF
Crystal Oscillator Drive (XOUT)
High Level Output Source Current IOH VI (XIN) = 3.3V, VO = 0V -8.0 mA
Low Level Output Sink Current IOL VI (XIN) = 0V, VO = 3.3V 8.7 mA
Current Reference (IREF)
Bias Voltage VOH no load 1.1 V
Short Circuit Output Source Current IOH VO = 0V mA
MREF_P, MREF_N, CK66_0:2, PCI_0:9 Clock Outputs (Type 5)
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
mA
IOL min
VDD_M, VDD_66, VDD_P = 3.135V,
VO = 1.95V 30
Low Level Output Sink Current
IOL max
VDD_M, VDD_66, VDD_P = 3.465V,
VO = 0.4V 38
mA
zOL Measured at 1.65V, output driving low 12 55
Output Impedance zOH Measured at 1.65V, output driving high 12 55 Ω
Tristate Output Current IOZ -10 10 µA
Short Circuit Output Source Current IOSH VO = 0V; shorted for 30s, max. -51 mA
Short Circuit Output Sink Current IOSL VO = 3.3V; shorted for 30s, max. 62 mA