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MC33977DWR2 Scheda tecnica(PDF) 3 Page - Freescale Semiconductor, Inc |
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MC33977DWR2 Scheda tecnica(HTML) 3 Page - Freescale Semiconductor, Inc |
3 / 37 page Analog Integrated Circuit Device Data Freescale Semiconductor 3 33977 PIN CONNECTIONS PIN CONNECTIONS Figure 3. 33977 Pin Connections Table 1. 33977 Pin Definitions A functional description of each pin can be found in the Functional Pin Description section beginning onpage 10. Pin Pin Name Pin Function Formal Name Definition 1 2 3 4 (MS Motor Pin #) COS+ (MS #4) COS- (MS #3) SIN+ (MS #1) SIN- (MS #2) Output H-Bridge Outputs 0 Each pin is the output of a half-bridge, designed to source or sink current. 5 to 8, 17 to 20 GND N/A Ground Ground pins 9 CS Input Chip Select This pin is connected to a chip select output of a Large Scale Integration (LSI) Master IC and controls which device is addressed. 10 SCLK Input Serial Clock This pin is connected to the SCLK pin of the master device and acts as a bit clock for the SPI port. 11 SO Output Serial Output This pin is connected to the SPI Serial Data Input pin of the Master device or to the SI pin of the next device in a daisy chain. 12 SI Input Serial Input This pin is connected to the SPI Serial Data Output pin of the Master device from which it receives output command data. 13 RTZ Multiplexed Output Return to Zero This is a multiplexed output pin for the non-driven coil, during a Return to Zero (RTZ) event. 14 VDD Input Voltage This SPI and logic power supply input will work with 5.0 V supplies. 15 RST Input Reset This pin is connected to the Master and is used to reset the device, or place it into a sleep state by driving it to Logic [1]. When this pin is driven to Logic [0], all internal logic is forced to the default state. This input has an internal active pull-up. 16 VPWR Input Battery Voltage Power supply 21, 22, 23, 24 NC – No Connect These pins are not connected to any internal circuitry, or any other pin, and may be connected to the board where convenient. NC NC NC NC GND GND GND GND VPWR RST VDD RTZ COS+ COS- SIN+ SIN- GND GND GND GND CS SCLK SO SI |
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