MC68MH360RC25L Freescale Semiconductor, MC68MH360RC25L Datasheet - Page 142

• Manufacturer Part Number: MC68MH360RC25L
• Description: IC MPU QUICC 25MHZ 241-PGA
• Manufacturer: Freescale Semiconductor

Specifications of MC68MH360RC25L

• Processor Type: M683xx 32-Bit
• Speed: 25MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 241-PGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

The S/T interface includes elastic buffers allowing continued operation under any phase
relationship between the IDL frame sync and the network. These buffers allow the frame
sync to wander with respect to the network up to 60 s peak-to-peak, exceeding the Q.502
requirements of 18 s peak-to-peak over a 24-hour period.
Figure C-6 shows a block diagram of the connection between four S/T interfaces and the
QUICC32. The diagram would be the same for up to 10 S/T interfaces.
2.048-MHz
Inverted Clock
Clock
8-KHz Clock
Q Flip-flop 1
Q Flip-flop 2
2.048-MHz
2.048-MHz
Figure C-5. FSC Generation from a 2.048-MHz Clock—Timing
Figure C-4. FSC Generation from a 2.048-MHz Clock—Block
Clock
FSC
Freescale Semiconductor, Inc.
For More Information On This Product,
D
CLK
Flip-flop 1
Go to: www.freescale.com
Q
Q
QMC Supplement
2.048-
Diagram
Duty cycle 50%
Clock
8-KHz Clock
MHz
8 KHz
D
CLK
Flip-flop 2
256 Divider
Duty cycle
of 50%
Q
Q
2.048-MHz
Clock
FSC