20-Pin TSSOP and SSOP Evaluation Board User’s Guide © 2009 Microchip Technology Inc.
Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. • There are dishonest and possibly illegal methods used to breach the code protection feature.
20-PIN TSSOP AND SSOP EVALUATION BOARD USER’S GUIDE Table of Contents Preface ........................................................................................................................... 5 Chapter 1. Product Overview 1.1 Introduction ..................................................................................................... 9 1.2 What is the 20-Pin TSSOP and SSOP Evaluation Board? ............................ 9 1.3 What the 20-Pin TSSOP and SSOP Evaluation Board Kit Includes .......
20-Pin TSSOP and SSOP Evaluation Board User’s Guide NOTES: DS51875A-page 4 © 2009 Microchip Technology Inc.
20-PIN TSSOP AND SSOP EVALUATION BOARD USER’S GUIDE Preface NOTICE TO CUSTOMERS All documentation becomes dated, and this manual is no exception. Microchip tools and documentation are constantly evolving to meet customer needs, so some actual dialogs and/or tool descriptions may differ from those in this document. Please refer to our web site (www.microchip.com) to obtain the latest documentation available. Documents are identified with a “DS” number.
20-Pin TSSOP and SSOP Evaluation Board User’s Guide CONVENTIONS USED IN THIS GUIDE This manual uses the following documentation conventions: DOCUMENTATION CONVENTIONS Description Arial font: Italic characters Represents Referenced books Emphasized text Examples MPLAB® IDE User’s Guide ...is the only compiler... THE MICROCHIP WEB SITE Microchip provides online support via our web site at www.microchip.com. This web site is used as a means to make files and information easily available to customers.
20-PIN TSSOP AND SSOP EVALUATION BOARD USER’S GUIDE Chapter 1. Product Overview 1.1 INTRODUCTION This chapter provides an overview of the 20-Pin TSSOP and SSOP Evaluation Board and covers the following topics: • What is the 20-Pin TSSOP and SSOP Evaluation Board? • What the 20-Pin TSSOP and SSOP Evaluation Board kit includes 1.
20-Pin TSSOP and SSOP Evaluation Board User’s Guide NOTES: DS51875A-page 10 © 2009 Microchip Technology Inc.
20-PIN TSSOP AND SSOP EVALUATION BOARD USER’S GUIDE Chapter 2. Installation and Operation 2.1 INTRODUCTION This blank Printed Circuit Board allows 20-pin devices in the following four package types to be installed: 1. TSSOP-20. 2. SSOP-20. This board is generic so that any device may be installed. Refer to the device data sheet, however, for suitability of device evaluation. As well as the device, other desired passive components (resistors and capacitors) and connection posts may be installed.
20-Pin TSSOP and SSOP Evaluation Board User’s Guide 2.3 GETTING STARTED The 20-Pin TSSOP and SSOP Evaluation Board is a blank PCB that allows the user to configure the circuit to the exact requirements. The passive components use the surface-mount 805 package layout. This evaluation board supports the following Microchip device families: • • • • • • Digital Potentiometers (Digi-Pots) CAN IrDA Serial Peripherals Switching Regulators PICmicro® Microcontrollers Figure 2-1 shows the evaluation board circuit.
Installation and Operation TP1 TP2 DIP-20 (1) TP9 PICkit Serial / ICSP Interface J1 NC VDD VSS SDA SCL NC NC VDD VSS SDI SCK SDO 1 TP20 20 TP19 19 2 TP12 9 12 TP11 11 10 Requires blue wire jumpering to connect the PICkit Interface to the selected device TP10 R1U TSSOP-20 (1) VDD 20 2 19 9 12 10 11 VSS TP1 R1D 1 C1 C2 R2U TP2 R2D TP19 TP20 SSOP-20 TP1 TP2 1 20 2 19 TP9 TP10 TP11 TP12 R19U XTAL 9 12 VIA1 10 11 C3 VIA2 TP19 R19D C4 R20U TP20 PIC Circuitry (bottom of P
20-Pin TSSOP and SSOP Evaluation Board User’s Guide 2.3.1 The Hardware Figure 2-2 and Figure 2-3 shows the component layout of the 20-Pin TSSOP and SSOP Evaluation Board. This is a four-layer board (3.9" x 2.1" (99.06 mm x 53.34 mm)). There are twenty two connection points/pads that can use either through-hole or surface-mount connector posts. The pad labeled VDD is connected to the PCB power plane, while the pad labeled VSS is connected to the PCB ground plane.
Installation and Operation FIGURE 2-2: © 2009 Microchip Technology Inc. 20-Pin TSSOP and SSOP Evaluation Board Layout (Top).
20-Pin TSSOP and SSOP Evaluation Board User’s Guide FIGURE 2-3: DS51875A-page 16 20-Pin TSSOP and SSOP Evaluation Board Layout (Bottom). © 2009 Microchip Technology Inc.
Installation and Operation TABLE 2-1: OPTIONAL COMPONENTS (2) Component Comment C1, C2 Power supply bypass capacitors C3, C4 PIC Crystal capacitors R1U, R2U, R3U, R4U, R5U, R6U, R7U, R8U, R9U, R10U, R11U, R12U, R13U, R14U, R15U, R16U, R17U, R18U, R19U, R20U Pull-up resistors R1D, R2D, R3D, R4D, R5D, R6D, R7D, R8D, R9D, R10D, R11D, R12D, R13D, R14D, R15D, R16D, R17D, R18D, R19D, R20D Pull-down resistors (1) Y1 Can connect to either PIC’ main oscillator or to the Timer oscillator circuit.
20-Pin TSSOP and SSOP Evaluation Board User’s Guide 2.4 20-PIN TSSOP AND SSOP EVALUATION BOARD DESCRIPTION The 20-Pin TSSOP and SSOP Evaluation Board PCB is designed to be flexible in the type of device evaluation that can be implemented. The following sections describe each element of this evaluation board in further detail. 2.4.1 Power and Ground The 20-Pin TSSOP and SSOP Evaluation Board has a VDD pad and a VSS pad.
Installation and Operation 2.4.4 Device Footprints This section describes the characteristics of the component footprints so that you are better able to determine if the desired component(s) are compatible with the board. 2.4.4.1 TSSOP-20 The 20-pin TSSOP footprint has been layed out for packages that have a typical pitch of 0.65 mm (BSC), a maximum lead width of 0.30 mm, and a molded package width of 4.50 mm (BSC).
20-Pin TSSOP and SSOP Evaluation Board User’s Guide 2.4.5 PICkit Serial or In-Circuit Serial Programming (ICSP) Interface (Header J1) Figure 2-5 shows the interface connection of Header J1. The VDD and VSS signals are connected to the appropriate power or ground plane. The other 4 signals are open and can be easily jumpered to any of the 20 P1 (B20) through P20 (B1) connection points.
Installation and Operation 2.4.5.1 PICKIT SERIAL INTERFACE Table 2-2 shows the pin number assignment for the different signals for each of the supported interface protocols (SPI, I2C,...). TABLE 2-2: PICKIT SERIAL HEADER SIGNALS PICkit Serial Header Signal Pin Number SPI I2C USART Microwire LIN 1 CS — TX CS TX 2 VDD VDD VDD VDD — 3 VSS VSS VSS VSS VSS 4 SDI SDA — SDI CS/WAKE 5 SCK SCL — SCK FAULT/TXE 6 SDO — RX SDO RX 2.4.5.
-Pin TSSOP and SSOP Evaluation Board User’s Guide 2.4.6 Evaluating the MCP4361 Device (A Digital Potentiometer) The MCP4361 is a Digital Potentiometer that is in a 20-lead TSSOP package with an SPI serial interface. This allows the device to be communicated to by the PICkit Serial Analyzer. For this to occur, the PICkit Serial Analyzer signals must be connected to the correct MCP4018 signals. These connections are shown in Figure 2-7.
Installation and Operation TABLE 2-4: Device SUPPORTED DIGITAL POTENTIOMETERS TSSOP SSOP MCP4331 Yes — MCP4332 Yes — MCP4341 Yes — MCP4342 Yes — MCP4351 Yes — MCP4352 Yes — MCP4361 Yes — MCP4362 Yes — MCP4231 Yes — 14-pin TSSOP MCP4241 Yes — 14-pin TSSOP MCP4251 Yes — 14-pin TSSOP MCP4261 Yes — 14-pin TSSOP MCP4631 Yes — 14-pin TSSOP MCP4641 Yes — 14-pin TSSOP MCP4651 Yes — 14-pin TSSOP MCP4661 Yes — 14-pin TSSOP © 2009 Microchip Technology Inc.
20-Pin TSSOP and SSOP Evaluation Board User’s Guide 2.4.7 Evaluating the PIC24F16KA101 Device (nanoWatt XLP PIC Microcontroller) The PIC24F16KA101 is a nanoWatt XLP PIC Microcontroller that is offered in a 20-lead SSOP package. This device can be installed on the bottom side of the PCB. Figure 2-8 shows the PIC24F16KA101’s pin out, while Figure 2-9 shows an example connection for the ICSP interface and the connection of the crystal circuit to the secondary oscillator.
Installation and Operation TABLE 2-5: Device SUPPORTED NANOWATT XLP PIC MICROCONTROLLERS TSSOP SSOP PIC24F16KA101 — Yes PIC24F08KA101 — Yes PIC24F04KA201 — Yes PIC18F13K22 — Yes PIC18F13K50 — Yes PIC18F14K22 — Yes PIC18F14K50 — Yes © 2009 Microchip Technology Inc.
20-Pin TSSOP and SSOP Evaluation Board User’s Guide NOTES: DS51875A-page 26 © 2009 Microchip Technology Inc.
20-PIN TSSOP AND SSOP EVALUATION BOARD USER’S GUIDE Appendix A. Schematic and Layouts A.1 INTRODUCTION This appendix contains the schematic and layouts for the 20-Pin TSSOP and SSOP Evaluation Board. Diagrams included in this appendix: • • • • • • • A.2 Board Schematic Board Layout – Top Layer and Silk-Screen Board Layout – Bottom Layer Board Layout – Power Plane Board Layout – Ground Plane Board Layout – Top Components Board Layout – Bottom Silk SCHEMATICS AND PCB LAYOUT Section A.
20-Pin TSSOP and SSOP Evaluation Board User’s Guide BOARD SCHEMATIC M A.3 DS51875A-page 28 © 2009 Microchip Technology Inc.
Schematic and Layouts A.4 BOARD LAYOUT – TOP LAYER AND SILK-SCREEN © 2009 Microchip Technology Inc.
20-Pin TSSOP and SSOP Evaluation Board User’s Guide A.5 BOARD LAYOUT – BOTTOM LAYER DS51875A-page 30 © 2009 Microchip Technology Inc.
Schematic and Layouts A.6 BOARD LAYOUT – POWER PLANE © 2009 Microchip Technology Inc.
20-Pin TSSOP and SSOP Evaluation Board User’s Guide A.7 BOARD LAYOUT – GROUND PLANE DS51875A-page 32 © 2009 Microchip Technology Inc.
Schematic and Layouts A.8 BOARD LAYOUT – TOP COMPONENTS © 2009 Microchip Technology Inc.
20-Pin TSSOP and SSOP Evaluation Board User’s Guide A.9 BOARD LAYOUT – BOTTOM SILK DS51875A-page 34 © 2009 Microchip Technology Inc.
20-PIN TSSOP AND SSOP EVALUATION BOARD USER’S GUIDE Appendix B. Bill Of Materials (BOM) TABLE B-1: Qty 5 Note: BILL OF MATERIALS Reference Description RoHS Compliant Bare PCB, 20-pin TSSOP and SSOP Evaluation Board No Assembly required on this PCB. PCB © 2009 Microchip Technology Inc. Manufacturer Part Number Microchip Technology Inc.
WORLDWIDE SALES AND SERVICE AMERICAS ASIA/PACIFIC ASIA/PACIFIC EUROPE Corporate Office 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: http://support.microchip.com Web Address: www.microchip.
