FS6251-01 View Datasheet(PDF) - AMI Semiconductor
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FS6251-01 Datasheet PDF : 26 Pages
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April 1999
Table 8: DC Electrical Specifications
Unless otherwise stated, all power supplies = 3.3V ± 10%, 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 from 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
Supply Current, Static
fCPU = 100MHz; VDD_A = VDD_C = 3.465V
fCPU = 100MHz; VDD_A = VDD_C = 2.625V
IDD
fCPU = 66.67MHz; VDD_A = VDD_C = 3.465V
fCPU = 66.67MHz; VDD_A = VDD_C = 2.625V
PWR_DWN# low; VDD_A = VDD_C = 3.465V
IDDs
PWR_DWN# low; VDD_A = VDD_C = 2.625V
170
100
mA
170
72
48
500
µA
45
100
Digital Inputs (CPU_STOP#, PCI_STOP#, PWR_DWN#, SEL_0:1, SS_EN#)
High-Level Input Voltage
Low-Level Input Voltage
High-Level Input Current
Low-Level Input Current (pull-up)
VIH
VIL
IIH
IPU
VIL = 0.4V
2.0
VDD+0.3
V
VSS-0.3
0.8
V
-1
1
µA
15
38
50
µA
Digital Input (SEL_100/66#)
High-Level Input Voltage
VIH
Low-Level Input Voltage
VIL
Input Leakage Current
IIL
2.0
VSS-0.3
-1
VDD+0.3
V
0.8
V
1
µA
Crystal Oscillator Feedback (XIN)
Threshold Bias Voltage
High-Level Input Current
Low-Level Input Current
Crystal Loading Capacitance *
Input Loading Capacitance *
VTH
1.0
1.49
2.0
V
IIH
VIH = 3.3V
34
µA
IIL
VIL = 0V
-50
-34
-15
µA
CL(xtal)
As seen by an external crystal connected to
XIN and XOUT
13.5
18
22.5
pF
CL(XIN)
As seen by an external clock driver on XOUT;
XIN unconnected
36
pF
Crystal Oscillator Drive (XOUT)
High Level Output Source Current
Low Level Output Sink Current
IOH
VO = 0V
IOL
VO = 3.3V
-15
-3.0
mA
3.0
15
mA
CPU_0:3 Clock Outputs (2.5V Type 1 Clock Buffer)
High Level Output Source Current
Low Level Output Sink Current
Output Impedance
Tristate Output Current
Short Circuit Output Source Current *
Short Circuit Output Sink Current *
IOH min
IOH max
VDD_C = 2.375V, VO = 1.0V
VDD_C = 2.625V, VO = 2.375V
-27
-43
mA
-14
-27
IOL min
IOL max
VDD_C = 2.375V, VO = 1.2V
VDD_C = 2.625V, VO = 0.3V
27
47
mA
20
30
zOL
Measured at 1.25V, output driving low
13.5
24
45
Ω
zOH
Measured at 1.25V, output driving high
13.5
25
45
IOZ
-10
10
µA
ISCH
VO = 0V; shorted for 30s, max.
-56
mA
ISCL
VO = 2.5V; shorted for 30s, max.
58
mA
4.5.99
,62
9
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