33790 FREESCALE | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 12
Technical content
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
Figure 1. 33790 Simplified Application Diagram
ORDERING INFORMATION
Range (TA) Package MC33790DW / R2 -40°C to 85°C 16 SOICW MCZ33790EG / R2
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Figure 2. 33790 Simplified Internal Block Diagram
Figure 3. 33790 Pin Connections Table 1. 33790 Pin Definitions A functional description of each pin can be found in the Functional Pin Description section beginning on page 8. 1 DSI0F This logic input controls the frame output for DSI channel 0 in accordance with Table 5, page 8. 2 DSI0S This logic input controls the signalling output for DSI channel 0 in accordance with Table 5, page 8. 3 DSI0R This logic output provides the return data for DSI channel 0 in accordance with Table 5, page 8. 4 DSI1F This logic input controls the frame output for DSI channel 1 in accordance with Table 5, page 8. 5 DSI1S This logic input controls the signalling output for DSI channel 1 in accordance with Table 5, page 8. 6 DSI1R This logic output provides the return data for DSI channel 1 in accordance with Table 5, page 8. 8 CPCAP Used to store and filter charge pump output. 11 GND Circuit and bus ground return. 12 DSI1O DSI bus 1 input / output. 13 VSUP Idle level supply input. The voltage supplied to this pin sets the idle level on the DSI bus. 14 DSI0O DSI bus 0 input / output. 15 GND Circuit and bus ground return. 16 VDD 5.0 V logic supply input.
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ELECTRICAL CHARACTERISTICS
Table 2. Maximum Ratings permanent damage to the device.
- Pin soldering temperature limit is for 10 seconds maximum duration. Not designed for immersion soldering. Exceeding these limits may
cause malfunction or permanent damage to the device.
- Freescale’s Package Reflow capability meets Pb-free requirements for JEDEC standard J-STD-020C. For Peak Package Reflow
MC33xxxD enter 33xxx), and review parametrics.
- ESD1 performed in accordance with the Human Body Model (CZAP = 100pF, RZAP = 1500 Ω), ESD2 performed in accordance with the
Machine Model (CZAP = 200 pF, RZAP = 0 Ω).
Analog Integrated Circuit Device Data Freescale Semiconductor 5 33790 STATIC ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS Table 3. Static Electrical Characteristics
0.8 VDD – VDD
- After 10 µs settling time (assured by design).
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DYNAMIC ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS Table 4. Dynamic Electrical Characteristics
- Slew times and rise and fall times between 10% and 90% of output high and low levels.
Analog Integrated Circuit Device Data Freescale Semiconductor 7 33790 Figure 4. Timing Characteristics
- Typical BUSIN / BUSOUT logic thresholds (V THL) from MC33793 datasheet.
- t TAT (Turnaround Time) is dependent upon wire length, bus loads, and slave response characteristics.
- DSIxR stable on falling edge of DSIxS or rising edge of DSIxF.
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5.0 V logic level to control the state of the bus output (Idle
bus will be very close to the VSUP voltage. not affect the other channel. CPCAP to hold the stepped-up voltage. Table 5. DSI Bus Truth Table
Analog Integrated Circuit Device Data Freescale Semiconductor 9 33790 TYPICAL APPLICATIONS FUNCTIONAL TERMINAL DESCRIPTION TYPICAL APPLICATIONS The 33790 is intended for use in a DSI system. This device supplies the interface between standard logic levels and the voltage and current required for the DSI bus. Two independent DSI busses are supported by this part. The 33790 does not form the timing for the DSI bus. This is done by logic either embedded in a microcontroller or by the MC68HC55, which uses SPI commands and forms DSI protocol for communications over the DSI bus. The pins from the MC68HC55 are made to line up with the pins connecting to the 33790. This includes all the DSIxF, DSIxS, and DSIxR pins. A capacitor attached to CPCAP serves as a charge reservoir for the gate drive charge pump. This circuit creates a voltage that is higher than the source of the N-channel output transistor. This allows turning on of the transistor enough to prevent any significant voltage drop across it. The rest of charge pump electronics are completely self- contained on the IC.
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For the most current package revision, visit www.freescale.com and perform a keyword search using the “98A” listed below. DW SUFFIX EG SUFFIX (PB-FREE) 98ASB42567B 16-PIN SOICW
Analog Integrated Circuit Device Data Freescale Semiconductor 11 33790
REVISION HISTORY
REVISION DATE DESCRIPTION OF CHANGES 7.0 5/2006 • Implemented Revision History page
- Converted to Freescale format 8.0 11/2006 • Updated data sheet format
- Removed Peak Package Reflow Temperature During Reflow (solder reflow) parameter from Maximum Ratings on page 4. Added note with instructions to obtain this information from www.freescale.com. 9.0 11/2006 • Minor correction changes to Figure 1 and ordering information 10.0 12/2006 • Restated note Freescale’s Package Reflow capability meets Pb-free requirements for JEDEC standard J-STD-020C. For Peak Package Reflow Temperature and Moisture Sensitivity Levels (MSL), Go to www.freescale.com, search by part number [e.g. remove prefixes/suffixes and enter the core ID to view all orderable parts. (i.e. MC33xxxD enter 33xxx), and review parametrics. on page 4
Rev 10.0 Information in this document is provided solely to enable system and software implementers to use Freescale Semiconductor products. There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits or integrated circuits based on the information in this document. Freescale Semiconductor reserves the right to make changes without further notice to any products herein. Freescale Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Freescale Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters that may be provided in Freescale Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”, must be validated for each customer application by customer’s technical experts. Freescale Semiconductor does not convey any license under its patent rights nor the rights of others. Freescale Semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Freescale Semiconductor product could create a situation where personal injury or death may occur. Should Buyer purchase or use Freescale Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold Freescale Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Freescale Semiconductor was negligent regarding the design or manufacture of the part. Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc., 2006. All rights reserved. RoHS-compliant and/or Pb-free versions of Freescale products have the functionality and electrical characteristics of their non-RoHS-compliant and/or non-Pb-free counterparts. For further information, see http://www.freescale.com or contact your Freescale sales representative. For information on Freescale’s Environmental Products program, go to http:// www.freescale.com/epp. How to Reach Us: Home Page: www.freescale.com Web Support: http://www.freescale.com/support USA/Europe or Locations Not Listed: Freescale Semiconductor, Inc. Technical Information Center, EL516
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