MC145423E datasheet(8/30 Pages) FREESCALE

Numer części	MC145423E

Szczegółowy opis	Universal Digital Loop Transceiver (UDLT-3)

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Producent	FREESCALE [Freescale Semiconductor, Inc]

Strona internetowa	http://www.freescale.com

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TELECOMMUNICATIONS

MC145423

SLAVE SWITCHING CHARACTERISTICS (VDD = 5 V ±10%, TA = –40° to 85°C, CL = 50 pF)

Parameter

Figure

No.

Symbol

Min

Max

Unit

Input Rise Time: All Digital Inputs

tr

—2

µs

Input Fall Time: All Digital Inputs

tf

—2

µs

Clock Output Pulse Width: BCLK

tw(H,L)

3.66

4.15

µs

Crystal Frequency

fx1

4.086

4.1

MHz

Propagation Delay Times:

EN1, EN2, TE1 Rising to BCLK (TONE = VDD)

EN1, EN2, TE1 Rising to BCLK (TONE = VSS)

BCLK to EN1, EN2, TE1 Falling

RE1 Rising to BCLK (UDLT-1)

RE1 Falling to BCLK (TONE = VDD) (UDLT-1)

RE1 Falling to BCLK (TONE = VSS) (UDLT-1)

BCLK to Tx

TE1,TE2 to SDO1, SDO2

tp1

tp2

tp3

tp4

tp5

tp6

–50

300

—

–50

300

—

175

400

20

50

400

50

ns

Rx to BCLK Setup Time

tsu5

30

—

ns

Rx to BCLK Hold Time

th1

30

—

ns

SDI1, SDI2 to TE Setup Time

tsu6

30

—

ns

SDI1, SDI2 to TE Hold Time

th2

30

—

ns

EN1, EN2 Rising Edge to DCLK Rising Edge (UDLT-2)

tPHL

—

±30

ns

EN1, EN2 Rising Edge to First Tx Data Bit Valid

tdly1

—30

ns

BCLK Rising Edge to Tx Data Bits 2 – 8 Valid

tsu7

—

–40

ns

DCLK Pulse Width High (UDLT-2)

tw(H)

31

31.5

µs

DCLK Pulse Width Low (UDLT-2)

tw(L)

31

31.5

µs

DCLK Rising Edge to SDO1, SDO2 (UDLT-2)

tdly2

—30

ns

SDI1, SDI2 Setup (SDI1, SDI2 Valid Before DCLK

Falling Edge) (UDLT-2)

tsu9

10

—

ns

SDI1, SDI2 Hold (SDI1, SDI2 Valid After DCLK

Falling Edge) (UDLT-2)

th3

—30

ns

EN1, TE1 Rising Edge to VD Valid

tdly3

—30

ns

SE PIN TIMING

Parameter

Figure

No.

Symbol

Min

Max

Unit

LB, PD Hold

(LB, PD Valid After SE Falling Edge)

th

10

—

ns

SDO1, SDO2, VD High Impedance After SE Falling Edge

tdly1

—40

ns

SDO1, SDO2, VD Valid After SE Rising Edge

tdly2

30

—

ns

LB, PD Setup

(LB, PD Valid Before SE Rising Edge)

tsu

25

—

ns

Freescale Semiconductor, Inc.

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Podobny numer części - MC145423E

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NXP Semiconductors	MC145423EVK	759Kb / 40P	Universal Digital Loop Transceiver (UDLT-3) Evaluation Module Rev. 3, 2/2002

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MC145423E Arkusz danych(PDF) 8 Page - Freescale Semiconductor, Inc

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Podobny numer części - MC145423E

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