nothin: znalazlem tylko note katalogowa XScale IXP45X, wyglada to tak:
Max.Ratings
Supply Voltage (Intel XScale® processor) -0.3 V to 2.1 V
Supply Voltage I/O -0.3 V to 3.6 V
Supply Voltage DDR -0.3V to 2.75V
Supply Voltage Oscillator (OSC_VCC) -0.3 V to 2.1 V
Supply Voltage Oscillator (OSC_VCCP) -0.3 V to 3.6 V
Supply Voltage PLL (VCCPLL1) -0.3 V to 2.1 V
Supply Voltage PLL (VCCPLL2) -0.3 V to 2.1 V
Supply Voltage PLL (VCCPLL3) -0.3 V to 2.1 V
Operating Conditions
VCCP
Voltage supplied to the I/O, with the exception of the
DDRI SDRAM Interface. 3.135 3.3 3.465 V
VCC
Voltage supplied to the internal logic.
For 266, 400, and 533 MHz
For 667 MHz
1.235
1.425
1.3
1.5
1.365
1.575
V
V
VCCM Voltage supplied to the DDRI SDRAM Interface. 2.300 2.5 2.700 V
OSC_VCC
Voltage supplied to the internal oscillator logic.
For 266, 400, and 533 MHz
For 667 MHz
1.235
1.425
1.3
1.5
1.365
1.575
V
OSC_VCCP Voltage supplied to the oscillator I/O. 3.135 3.3 3.465 V
VCCPLL1
Voltage supplied to the analog phase-lock loop.
For 266, 400, and 533 MHz
For 667 MHz
1.235
1.425
1.3
1.5
1.365
1.575
V
VCCPLL2
Voltage supplied to the analog phase-lock loop.
For 266, 400, and 533 MHz
For 667 MHz
1.235
1.425
1.3
1.5
1.365
1.575
V
VCCPLL3
Voltage supplied to the analog phase-lock loop.
For 266, 400, and 533 MHz
For 667 MHz
1.235
1.425
1.3
1.5
1.365
1.575
V
w operating conditions wyglada to mniej wiecej tak dwie pierwsze wartkosci to minimal, dwie drugie to typical, dwie trzecie maximal. Druga to 677MHz, pierwsza to mniejsze taktowanie. Oczywiscie tych wartosci jest sporo wiecej, sa jeszcze inne do usb, inne do pamieci, itp, calosc tutaj:
http://download.intel.com/design/network/datashts/30626104.pdf