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STR91XF Fiches technique(PDF) 61 Page - STMicroelectronics

No de pièce STR91XF
Description  ARM966E-S 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC Motor Control, 4 Timers, ADC, RTC, DMA
PDF  72 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STR91XF Fiches technique(HTML) 61 Page - STMicroelectronics

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STR91xF
Electrical characteristics
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6.13
Communication interface electrical characteristics
6.13.1 10/100 Ethernet MAC electrical characteristics
VDDQ = 2.7 - 3.6V, VDD = 1.65 - 2V, TA = -40 / 85 °C unless otherwise specified.
Ethernet MII Interface Timings
Figure 16. MII_RX_CLK and MII_TX_CLK timing diagram
Table 20.
MII_RX_CLK and MII_TX_CLK timing table
Figure 17. MDC timing diagram
Table 21.
MDC timing table
Ethernet MII management timings
Figure 18. Ethernet MII management timing diagram
Symbol
Parameter
Symbol
Value
Unit
Min
Max
1
Cycle time
tc(CLK)
40
ns
2
Pulse duration HIGH
tHIGH(CLK)
40%
60%
3
Pulse duration LOW
tLOW(CLK)
40%
60%
4
Transition time
tt(CLK)
1ns
Symbol
Parameter
Symbol
Value
Unit
Min
Max
1
Cycle time
tc(MDC)
266
ns
2
Pulse duration HIGH
tHIGH(MDC)
40%
60%
3
Pulse duration LOW
tLOW(MDC)
40%
60%
4
Transition time
tt(MDC)
1ns
MII_RX_TCLK, MII_TX_CLK
1
2
3
4
4
1
2
3
4
4
MDC
1
2
3
MDC
MDIO
output
MDIO
input



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