MC145572AE Freescale Semiconductor, MC145572AE Datasheet - Page 227
MC145572AE
Manufacturer Part Number
MC145572AE
Description
Manufacturer
Freescale Semiconductor
Datasheet
1.MC145572AE.pdf
(264 pages)
Specifications of MC145572AE
Number Of Line Interfaces
1
Control Interface
HDLC
Lead Free Status / Rohs Status
Compliant
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MOTOROLA
T
R
C1
20.4800 MHz
F.1
Y1
INTRODUCTION
This appendix shows suggested partial schematics for several MC145572 applications.
C2
+ 5 V
+ 5 V
Figure F–1. U–Interface Repeater Using MC145572FN and MC68HC05P9
R1
R2
Figure F–1 shows an example of how to connect two MC145572 U–interface transceivers as a
repeater.
Figure F–2 shows how an MC68HC05 MCU can be connected to the MC145572 and MC145474
in an NT1 application.
Figure F–3 details the MC68302 serial interface connections to the MC145572 and MC14LC5480
for an ISDN U–interface terminal.
Figure F–4 shows an ISDN smart NT1 application with the MC145572 and MC145574 in NT ter-
minal mode.
Figures F–5 and F–6 show two different remote access multi–line configurations.
Figure F–7 gives an example of a multi–line U line card.
16
12
15
32
33
9
5
6
M/S
TxP
RxP
RxN
TxN
NT/LT
XTAL out
XTAL in
MC145572FN
NT
Freescale Semiconductor, Inc.
MCU/GCI
PAR/SER
SCPCLK
SCPEN
RESET
SCPRx
SCPTx
For More Information On This Product,
D out
FSR
DCL
D in
+ 5 V
21
14
19
18
20
27
29
30
31
43
13
+ 5 V
Go to: www.freescale.com
MC145572
MC68HC05P9
20.4800 MHz
Y2
+ 5 V
21
14
19
18
20
28
27
30
29
31
42
32
33
SCPEN
RESET
SCPTx
SCPRx
SCPCLK
FSX
FSR
D out
D in
DCL
FREQREF
XTAL out
XTAL in
MC145572FN
APPLICATIONS
LT
MCU/GCI
PAR/SER
NT/LT
RxN
RxP
M/S
TxP
TxN
16
9
5
6
12
15
43
13
+ 5 V
R3
R4
C3
F
C4
F–1
T
R
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