MC33880 데이터 시트보기 (PDF) - Freescale Semiconductor

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MC33880

Configurable Octal Serial Switch with Serial Peripheral Interface I/O

Freescale Semiconductor 

INTERNAL BLOCK DIAGRAM

INTERNAL BLOCK DIAGRAM

VDD

__

CS

SCLK

DI

DO

EN

IN5

IN6

~50 μA

~50 μA

~50 μA

~50 μA

SPI and

Interface

Logic

SPI Bit 0

Enable

SPI Bit 4

IN5

Internal

Bias

VPWR

Charge

Pump

Overvoltage

Shutdown / POR

Sleep State

GND

OV, POR, SLEEP

Typical of All 8 Output Drivers

TLIM

Gate

Drive

Control

Current

Limit

+

–

+

–

+_

Open/Short Comparator ~1.5 V Open/Short Threshold

Open

Load

Detect

Current

~650 μA

TLIM

Gate

Drive

Control

Current

Limit

+

–

+

–

+_

Open/Short Comparator ~1.5 V Open/Short Threshold

Open

Load

Detect

Current

~650 μA

D1

D2

D3 Drain

D4 Outputs

D7

D8

S1

S2

S3

S4

S7

Source

Outputs

S8

D5 Drain

D6 Outputs

S5 Source

S6 Outputs

Figure 2. 33880 Simplified Internal Block Diagram

33880

2

Analog Integrated Circuit Device Data

Freescale Semiconductor

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