Datasheet
TMC8460-BI Datasheet (V100 / 2016-Sep-01)
Copyright © 2016 TRINAMIC Motion Control GmbH & Co. KG 44
3.9 Electrical Characteristics
3.9.1 Operating Conditions
Stresses beyond those listed in the following table may cause damage to the device. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Absolute maximum ratings are stress ratings only. Functional operation of the device at these or
Table 5 : Absolute Maximum Ratings
Symbol Parameter Min Typ Max Unit Notes
VCORE DC core supply voltage, must always be powered -0.3 - 1.32 V
VCCIO IO supply voltage, must always be powered. -0.3 - 3.63 V
VPLL PLL supply voltage, must always be powered. -0.3 - 3.63 V
VPP Power supply for charge pump, must always be
powered.
-0.3 - 3.63 V
T
STG
Storage temperature -65 - 150 °C
T
J
Junction temperature -55 - 125 °C
Table 6 : Recommended Operating Conditions
Symbol Parameter Min Typ Max Unit Notes
VCORE DC core supply voltage, must always be powered 1.14 1.2 1.26 V
VCCIO IO supply voltage, must always be powered. 3.15 3.3 3.45 V
VPLL PLL supply voltage, must always be powered. 3.15 3.3 3.45 V
VPP Power supply for charge pump, must always be
powered.
3.15 3.3 3.45 V
T
J
Operating Junction temperature -40 25 100 °C
3.9.2 External CLK Source
Both TMC8460-BI and the external Ethernet PHYs must share the same clock source. For proper operation
a stable and accurate 25MHz clock source is required. The recommended initial accuracy must be at least
25ppm or better.
The TMC8460-BI has been used with the following crystal oscillators so far:
• FOX Electronics FOX924B TCXO, 25.0MHz, 2.5ppm, 3.3V: http://www.foxonline.com/pdfs/fox924.pdf
• TXC 7M-25.000MAAJ-T XO 25.0MHz, 30ppm: http://www.txccrystal.com/images/pdf/7m.pdf
• CTS 636L5C
025M00000
, 25MHz, 25ppm: http://www.ctscorp.com/components/Datasheets/008-0250-0.pdf
3.9.3 IO Characteristics
The following table contains information on the IO characteristics.
LVCMOS is a widely used switching standard and is defined by JEDEC (JESD 8-5).
The TMC8460-BI supports LVCMOS standard LVCMOS33, which is a general standard for 3V3 applications.
Symbol Parameter Min Typ Max Unit Notes
C
IN
Input capacitance - 10 pF
R
PU
Weak pull-up at VOH 9.9 14.5 kΩ
R
PD
Weak pull-down at VOL 9.98 14.9 kΩ
VOH DC output logic high VCCIO-0.4 - V
VOL DC output logic low - 0.4 V
VIH DC input logic high 2.0 3.45 V
VIL DC input logic low -0.3 0.8 V
IIH Input current high - 10 µA
IIL Input current low - 10 µA