MC145554 View Datasheet(PDF) - Motorola => Freescale

Part Name

Description

Manufacturer

MC145554

PCM Codec-Filter

Motorola => Freescale 

S INTERFACE

7Ω

+5V

1 kΩ

+5V

7Ω

7Ω

1 kΩ

1 kΩ

HANDSET

RJ–1

+ RCVR 1

(WHITE)

+5V

500 Ω

+ MIC (RED)

– RCVR

(WHITE)

– MIC (BLK)

500 Ω 10 kΩ

0.1 µF

“S” TRANSCEIVER

LAP–D/LAP–B CONTROLLER

+5V

MC145474P

+5V +5V

MC145488

17

33 k

VDD

2

ISET

21 TX+

4

TE/NT

8

SYNC

9

CLK

52, 2, 9

VDD

60, 44

SYNC 0, 1

59, 45 CLK 0, 1

D0 10

D1 11

D2 12

D3 13

D4 14

+5V

7Ω

20

TX–

10

RX

11

TX

7

DREQ

55, 49 TX 0, 1

56, 48

RX 0, 1

47 DREQ 1

D5 15

D6 16

D7 17

D8 18

5

DGRT

46

DGNT 1

D9 19

D10 20

50 SCPE 1 D11 22

+5V

1 kΩ

2

RX+

3

RX–

6

VSS

15

SEL

14

CLK

13

RX

12

TX

IRQ

RESET

53

D12 23

SCPE 0 D13 24

57

SCP CLK

D14 25

54

SCP TXD

58

SCP RXD

D15

A1

A2

26 MPU

8 BUS

7

A3 6

A4 5

XTAL

EXTAL

A5 4

19

30 pF

15.36 MHz

30 pF

A6 3

A7 1

A8 68

A9 67

A10 66

A11 65

A12 64

MC145554P + 5 V

3

4

VFRO

VCC

12, 5

FSX, FSR

10, 7, 8, 9

MCLK, BCLK

15 VFXI–

DX 11

14

6

16 GSX

DR 13

2 VFXI+

GNDA

TSX 1

VBB

A13 63

A14 62

A15 61

OWN0 42

OWN1 43

MCLK 27

CS 28

R/W 29

AS 30

LDS 31

UDS 32

RST 33

CODEC–FILTER – 5 V

IACK 34

IRQ 36

DTACK 37

BERR 38

51, 36, 21 VSS

BR 39

BG 40

BGACK 41

Figure 5. ISDN Voice/Data Terminal

MC145554•MC145557•MC145564•MC145567

14

MOTOROLA

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