33879 datasheet(12/25 Pages) FREESCALE

Part #	33879

Description	Configurable Octal Serial Switch with Open Load Detect Current Disable

PDF	25 Pages

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Manufacturer	FREESCALE [Freescale Semiconductor, Inc]

Direct Link	http://www.freescale.com

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12 / 25 page

Analog Integrated Circuit Device Data

Freescale Semiconductor

33879

ELECTRICAL CHARACTERISTICS

TIMING DIAGRAMS

Figure 4. SPI Timing Diagram

Figure 5. Valid Data Delay Time

and Valid Time Test Circuit

Figure 6. Valid Data Delay Time

and Valid Time Waveforms

Figure 7. Enable and Disable Time Waveforms

tDO(DIS)

0.7 VDD

0.2 VDD

0.7 VDD

0.2 VDD

tLEAD

tDO(EN)

tDI(SU) tDI(HOLD)

tVALID

tLAG

SCLK

MSB in

MSB out

LSB out

0.7 VDD

0.2 VDD

CL = 200 pF

VDD = 5.0 V

SCLK

33879

Under

Test

NOTE: CL represents the total capacitance of the test

fixture and probe.

(Low-to-High)

tF(DI

tR(DI)

0.2 VDD

0.7 VDD

0.2

0.7 VDD

tVALID

tR(DO

VOL

VOH

VOL

VOH

0.2 VDD

0.7 VDD

0 V

3.3/5.0 V

< 50 ns

50%

< 50 ns

SCLK

(High-to-Low)

90%

tF(CS)

tR(CS)

VOH

VOL

0 V

3.3/5.0 V

tDO(DIS)

tDO(EN)

tDO(DIS)

tDO(EN)

(Tri-State to Low)

0.7 VDD

0.2 VDD

<50 ns

90%

(Tri-State to High)

10%

90%

10%

VTri-State

33879 Datasheet(PDF) 12 Page - Freescale Semiconductor, Inc

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