MC145572FN Freescale Semiconductor, MC145572FN Datasheet - Page 36

• Manufacturer Part Number: MC145572FN
• Manufacturer: Freescale Semiconductor

Specifications of MC145572FN

• Number Of Line Interfaces: 1
• Control Interface: HDLC
• Package Type: PLCC
• Lead Free Status / Rohs Status: Not Compliant

3–14
at all times. This means that the BUFXTAL out pin can not be used as a master clock source in applica-
tions that require a synchronized clock. In NT mode, the U–interface transceiver can lock to 80 kbaud
A single 20.48 MHz pullable crystal must be connected between XTAL in and XTAL out pins of the
MC145572. Refer to Appendix B for crystal specifications and sourcing information. The crystal speci-
fied for the NT mode operation will operate in LT applications. The crystal specified for LT applications
will not operate in NT applications. The reason is that the NT mode crystal has a tighter overall fre-
quency tolerance than the LT mode crystal.
32 ppm receive signals.
Motorola continues to qualify several third party sources for the 20.48 MHz crystal. Contact
your local Motorola representative or Motorola factory applications staff for the latest in-
formation regarding component sourcing.
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
MC145572
NOTE
MOTOROLA