MCF5272VF66 Freescale, MCF5272VF66 Datasheet - Page 513

• Manufacturer Part Number: MCF5272VF66
• Manufacturer: Freescale

Specifications of MCF5272VF66

• Family Name: MCF5xxx
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 66MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 3.3V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 196
• Package Type: MA-BGA
• Lead Free Status / RoHS Status: Not Compliant

23.11 USB Interface AC Timing Specifications
Table 23-22
1
2
Figure 23-22
Freescale Semiconductor
Name
US2
US3
US1
US4
US5
US6
US7
US8
USB_CLK accuracy should be +- 500ppm or better. USB_CLK may be stopped to conserve power.
Specification values are not tested.
2
2
USB_CLK frequency of operation
USB_CLK fall time (from V
USB_CLK rise time (from V
USB_CLK duty cycle (measured at 1.5 V)
USB Inputs (USB_RP, USB_RN, USB_RxD) setup time to USB_CLK (rising)
USB Inputs (USB_RP, USB_RN, USB_RxD) hold time from USB_CLK (rising)
USB_CLK to USB outputs valid (USB_TP, USB_TN, USB_SUSP, USB_TxEN)
USB_CLK to USB outputs invalid (output hold) (USB_TP, USB_TN, USB_SUSP, USB_TxEN)
lists USB interface timings.
shows USB timings listed in
USB_SUSP
USB signals are sampled; setup and hold times are not normally required in
a transceiver connection.
USB_TxEN
USB_RxD
USB_CLK
USB_RN
USB_RP
USB_TN
USB_TP
(input)
MCF5272 ColdFire
Table 23-22. USB Interface AC Timing Specifications
US4a
h
l
= 2.4V to V
= 0.5V to V
Figure 23-22. USB Interface Timing
1
US5
®
Integrated Microprocessor User’s Manual, Rev. 3
Characteristic
l
US7
h
= 0.5V)
US1
= 2.4V)
Table
23-22.
NOTE
US6
US8
US2
US4b
V
V
h
l
Electrical Characteristics
Min
US3
48
45
48-66 MHz
—
—
—
6
6
3
Max
48
55
12
—
—
—
2
2
MHz
Unit
23-29
nS
nS
nS
nS
nS
nS
%