MC33780
MC33780 is Dual DBUS Master manufactured by Freescale Semiconductor.
Features
- Two Independent DBUS I/Os
- mon SPI Interface for All Operations
- Open-Drain Interrupt Output with Pull-up
- Maskable Interrupts for Send and Receive Data Status
- Automatic Message Cyclical Redundancy Checking (CRC) Generation and Checking
- Four-Stage Transmit and Receive Buffers
- 8- to 16-Bit Messages with 0- to 8-Bit CRC
- Independent Frequency Spreading for Each Channel
- Pb-Free Packaging Designated by Suffix Code EG
DIFFERENTIAL DBUS MASTER
EG (Pb-FREE SUFFIX) 98ASB42567B 16-TERMINAL SOICW
ORDERING INFORMATION
Device MC33780EG/R2 Temperature Range (TA) -40°C to 85°C Package 16 SOICW
+5.0 V
+25 V
MCU VCC SCLK CS MOSI MISO RST INT CLK GND VCC
33780 VSUP Twisted Pair SCLK CS MOSI MISO RST INT CLK GND D0H D0L D1H D1L DSI/DBUS SLAVE 33793
DSI/DBUS SLAVE 33793
4.7 n F capacitors from D0H, D0L, D1H and D1L to circuit ground are required for proper operation.
Figure 1. 33780 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.
.. INTERNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
VSUP
CLK DSIF DSIS Protocol Engine DSIR DSIF DSIS DSIR SCLK MISO MOSI CS INT RST
DBUS Driver/Receiver
D0H D0L
Spreader
DBUS Driver/Receiver
D1H D1L
SPI, Registers and Interrupt Generator
TLIM
GND GND GND
Figure 2. 33780 Internal Block...