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Freescale Semiconductor Electronic Components Datasheet

MCZ33790 Datasheet

Two-Channel Distributed System Interface (DSI) Physical Interface Device

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MCZ33790 pdf
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Advance Information
Two-Channel Distributed
System Interface (DSI) Physical
Interface Device
The 33790 is a dual channel physical layer interface IC for the
Distributed System Interface (DSI) bus. It is designed to meet
automotive requirements. It can also be used in non automotive
applications. It supports bidirectional communication between slave
and master ICs. Some slave devices derive a regulated 5.0 V from
the bus, which can be used to power sensors, thereby eliminating the
need for additional circuitry and wiring.
Features
• Two Independent DSI Compatible Buses
• Pinout Matched to MC68HC55 (SPI to DSI Logic)
• Wave-Shaped Bus Output Voltage
• Independent Thermal Shutdown and Current Limit
• Return Signalling Current Detection
• Internal Logic Input Pull ups and Pull downs
• On-Board Charge Pump
• 2.0 kV ESD Capability
• Communications Rate Up to 150 kbps
• Pb-Free Packaging Designated by Suffix Code EG
Document Number: MC33790
Rev 10.0, 12/2006
33790
DISTRIBUTED SYSTEM INTERFACE (DSI)
DW SUFFIX
EG SUFFIX (PB-FREE)
98ASB42567B
16-PIN SOICW
ORDERING INFORMATION
Device
MC33790DW / R2
MCZ33790EG / R2
Temperature
Range (TA)
-40°C to 85°C
Package
16 SOICW
MC68HC55
Protocol
Converter
33790
DSI0F
VDD
DSI0S
GND
DSI0R
DSI0O
DSI1F
VSUP
DSI1S
DSI1O
DSI1R
GND
CPCAP
+5.0 V
+25 V
MCU
33793 BUS_IN
BUS_OUT
33793
DSI
SLAVE
DEVICE
BUS_IN
BUS_OUT 33793
Figure 1. 33790 Simplified Application Diagram
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© Freescale Semiconductor, Inc., 2006. All rights reserved.


Freescale Semiconductor Electronic Components Datasheet

MCZ33790 Datasheet

Two-Channel Distributed System Interface (DSI) Physical Interface Device

No Preview Available !

MCZ33790 pdf
INTERNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
DSI0F
DSI0S
VDD (+5.0 V) CPCAP
+ Internal
Bias
Charge
Pump
Wave-
Shaper
Transmitter
Driver
VSUP (IDLE Level)
Bus Supply
Voltage
Bus Current
Sense
DSI0O
DSI Bus
DSI0R
DSI1F
DSI1S
+
Wave-
Shaper
Transmitter
Driver
Bus Current
Sense
GND
DSI1O
DSI Bus
DSI1R
Figure 2. 33790 Simplified Internal Block Diagram
33790
2
Analog Integrated Circuit Device Data
Freescale Semiconductor


Part Number MCZ33790
Description Two-Channel Distributed System Interface (DSI) Physical Interface Device
Maker Freescale Semiconductor
Total Page 12 Pages
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