19-3013; Rev 0; 10/03 HS I2C-Compatible Module Features ♦ HS-Mode I2C-Compatible Interface (3.4MHz, 1.7MHz) ♦ Fast-Mode I2C-Compatible Interface (400kHz) ♦ Standard-Mode I2C-Compatible Interface (100kHz) ♦ Proven Design ♦ Proven PC Board Layout ♦ On-Board 40MHz Crystal Oscillator ♦ On-Board Regulated +3.3V Ordering Information PART NUMBER HSI2CMOD INTERFACE TYPE HS/Fast/Standard-Mode I2C-Compatible Component List DESIGNATION QTY DESCRIPTION C1–C15, C19, C20, C21 18 0.1µF ±10%, 16V X7R ceramic capacitors (0603) TDK C1608X7R1C104KT C16 1 1µF ±20%, 10V X5R ceramic capacitor (0805) TDK C2012X5R1A105M DESIGNATION QTY DESCRIPTION R1, R2 2 1.5kΩ ±5% resistors (1206) (suitable for a 2-wire bus capacitance of ≤ 200pF) R3, R4, R7 3 0Ω ±5% resistors (1206) R5 1 165kΩ ±1% resistor (0603) R6 1 100kΩ ±1% resistor (0603) SW1 1 DIP switch default: SW: 1-4 (ON) SW: 2-3 (ON) U1 1 Altera EPM3256AQC208-10 (208-pin PQFP) C17 1 10µF ±20%, 25V X5R ceramic capacitor (1210) TDK C3225X5R1E106M C18 1 100µF, 6.3V, 45mΩ low-ESR POSCAP (D2) Sanyo 6TPC100M D1 1 1A, 30V Schottky diode Nihon EP10QY03 U2 1 Step-down regulator (8-pin µMAX) Maxim MAX1776EUA FB1, FB2 2 Surface-mount ferrite beads (0603) TDK MMZ1608B601C U3 1 40MHz crystal oscillator (half-size DIP) Oscilent 320-40.0M-5E-TTS J1 1 Not installed,10-pin, 2 x 5 header 1 J2 1 20-pin, 2 x 10 male right-angle connector U4 Tri-state logic buffer (5-pin SOT23) Fairchild Semiconductor NC7SZ126M5X J3 1 2 x 20 right-angle female connector JU1, JU2, JU5 3 3-pin headers U5, U6, U7 3 JU3, JU4, JU6, JU7, JU8 Schmitt trigger input-logic inverters (5-pin SOT23) Fairchild Semiconductor NC7SZ14M5X 5 2-pin headers None 5 Shunts L1 1 10µH inductor Sumida CDRH6D28-100NC Purchase of I2C components of Maxim Integrated Products, Inc. or one of its sublicensed Associated Companies, conveys a license under the Phillips I2C Patent Rights to use these components in an I2C system, provided that the system conforms to the I2C Standard Specification as defined by Phillips. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 1 Evaluates: HS I2C-Compatible Parts General Description The HS I2C™-compatible module is a reference solution for implementing an interface that is compatible with the high-speed (HS) mode (3.4MHz, 1.7MHz), fast mode (400kHz), and standard mode (100kHz) of the I2C standard. The module consists primarily of an Altera EPM3256AQC208-10 programmable logic device (PLD) containing the DI2CM core available from Digital Core Design. The module allows microcontrollers (µCs) with a compatible 8-bit-memory-mapped parallel interface to communicate with I2C-compatible slave devices. The HS I2C-compatible module is provided as part of selected Maxim evaluation systems. The main purpose of the HS I2C-compatible module is the evaluation of Maxim products. The use of the HS I 2C-compatible module as a development board or any other use not described in selected Maxim evaluation kit (EV kit)/ evaluation system (EV system) data sheets is not supported by Maxim. Evaluates: HS I2C-Compatible Parts HS I2C-Compatible Module Component Suppliers SUPPLIER PHONE WEBSITE Altera Corporation 1-800-800-3753 www.altera.com Digital Core Design 48-32282-8266 www.digitalcoredesign.com Fairchild 1-888-522-5372 www.fairchildsemi.com Semiconductor Nihon 81-33343-3411 www.niec.co.jp Oscilent 1-949-252-0522 www.oscilent.com Sanyo 1-619-661-6322 www.sanyo.com Sumida 1-847-545-6700 www.sumida.com TDK 1-847-803-6100 www.component.tdk.com Note: Please indicate that you are using a Maxim part when contacting these component suppliers. Description of Hardware HS I2C-Compatible Module Supplies Table 3. GPIOA JUMPER JU3 SHUNT POSITION ON OFF* JUMPER JU4 SHUNT POSITION ON OFF* JUMPER JU5 JUMPER SHUNT POSITION JU1 SHUNT POSITION DESCRIPTION 1-2 3.3V I2C-compatible interface 2-3* 5V I2C-compatible interface JU2 2 SHUNT POSITION DESCRIPTION 1-2* Enable the crystal oscillator 2-3 Disable the crystal oscillator ____________________________________________________ DESCRIPTION Reset the PLD 2-3* Normal operation mode SHUNT POSITION DESCRIPTION ON The RD line to connector J3 pin 9 (J3-9) is active high; remove U5 OFF* The RD line to connector J3 pin 9 (J3-9) is active low; U5 must be present for proper operation Table 7. Active-High CS-Line Option JUMPER SHUNT POSITION DESCRIPTION ON The CS line to connector J3 pin 11 (J3-11) is active high; remove U6 OFF* The CS line to connector J3 pin 11 (J3-11) is active low; U6 must be present for proper operation JU7 Table 8. Active-High WR-Line Option JUMPER SHUNT POSITION DESCRIPTION ON The WR line to connector J3 pin 10 (J3-10) is active high; remove U7 OFF* The WR line to connector J3 pin 10 (J3-10) is active low; U7 must be present for proper operation Table 2. Crystal Oscillator Enable JUMPER Disconnect GPIOB 1-2 JU6 Table 1. I2C-Compatible Logic-Supply Selection JUMPER Do not use Table 6. Active-High RD-Line Option HS I2C-Compatible Module Jumpers *The asterisks in the tables below indicate the default configuration. DESCRIPTION Table 5. Global PLD Clear (GCLR) EPM3256AQC208-10 PLD (Altera) The EPM3256AQC208-10 is from Altera’s MAX3000A family of PLDs. This 256 product-term device accepts 3.3V or 5V logic even when powered from a 3.3V supply. Contact Altera for any questions relating to the PLD. See the Component Suppliers section for contact information. Disconnect GPIOA Table 4. GPIOB I2C-compatible The HS module requires two supplies. The on-board 3.3V regulator requires an input voltage at VIN of 4.5V to 24V (J3-5, J3-6). The module also requires a regulated 5V logic supply (J3-7, J3-8). A Maxim µC module normally provides both of these supplies. DESCRIPTION Do not use JU8 J3–31 J3–32 J3–33 J3–34 GPIOB GCLR J3–39 J3–40 J3–37 J3–38 J3–35 J3–36 J3–29 J3–30 J3–25 J3–26 D6 J3–27 J3–28 J3–23 J3–24 D4 INT J3–21 J3–22 GPIOA J3–19 J3–20 D2 J3–17 J3–18 J3–15 J3–16 J3–13 J3–14 D0 AI0 J3–11 J3–12 J3–10 J3–8 J3–6 CS J3–7 J3–5 J3–4 J3–3 J3–9 +5V J3–2 +5V J3–1 1 JU1 2 3 +3.3V RD VIN +5V +3.3V PGND FB1 C16 1µF +5V CS J3 RD 2 A JU6 INT AI1 AI0 D7 D6 D5 D4 D3 +3.3V 3 1 JU5 2 +3.3V +5V D3 C20 0.1µF 5 2 VCC A 4 Y N.C. 1 3 GND U6 4 U5 Y +5V N.C. 1 D5 5 3 VCC GND D7 C19 0.1µF JU7 D1 AI1 WR VIN D2 D1 D0 8 5 VCC OUT 1 U3 2 JU2 1 OE GND 3 4 GCLR VDD +5V 59 57 49 34 28 22 20 18 16 12 10 8 3 181 183 182 184 CS RD INT AI1 AI0 D7 D6 D5 D4 D3 D2 D1 D0 INPUT/OE2/GCLK2 INPUT/OE1 GCLR INPUT/GCLK1 GNDINT 75 FB2 82 GNDINT DGND C3 0.1µF 180 GNDINT C1 0.1µF C4 0.1µF 185 GNDINT C2 0.1µF 74 VCCINT 83 6 179 VCCINT GNDIO 186 VCCINT GNDIO 14 VCCINT 5 U1 107 ALTERA EPM3256AQC208-10 GNDIO 40 GNDIO 50 GNDIO 72 GNDIO 84 GNDIO 32 VCCIO 23 VCCIO 41 VCCIO 68 VCCIO 85 VCCIO GNDIO 94 C6 0.1µF WR GPIOB GPIOA N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. PSCLHS PSCL PSDA TDI TMS 4 VDD GND 3 U4 Y R1 1.5kΩ 2 Y U7 A 1 N.C. 5 3 GND VCC JU8 GPIOB 110 4 OE A VCC JU4 55 J1–8 J1–7 J1–9 J1–10 J1–6 J1–5 J1–2 J1–4 J2–8 J2–5 J2–7 C21 0.1µF +5V WR J2–19 J2–20 J2–17 J2–18 J2–15 J2–16 J2–13 J2–14 J2–11 J2–12 J2–9 J2–10 J2–4 J2–6 J2–3 J2–2 J2–1 CONNECTOR 2 X 10 SCL SDA J2 2 1 C12 0.1µF R2 1.5kΩ C11 0.1µF +3.3V J1 C10 0.1µF SDA R4 0Ω C9 0.1µF J1–3 C8 0.1µF J1–1 GPIOA SCL SDA 1 2 5 111 1 2 51 52 53 54 103 104 105 106 155 156 157 158 207 208 VDD R3 0Ω C7 0.1µF JU3 114 C15 0.1µF 118 123 176 127 TCK 30 189 TDO C5 0.1µF GNDIO VCCIO GNDIO 108 125 VCCIO GNDIO 116 143 VCCIO GNDIO 134 165 VCCIO GNDIO 142 191 VCCIO GNDIO 152 GNDIO 174 GNDIO 190 SCL SCL VDD VIN 3 4 SDA SW1 C13 0.1µF C14 0.1µF Evaluates: HS I2C-Compatible Parts 200 +3.3V HS I2C-Compatible Module Figure 1. HS I2C-Compatible Module Schematic _______________________________________________________________________________________ 3 Evaluates: HS I2C-Compatible Parts HS I2C-Compatible Module Description of PLD Core 5 VIN C17 10µF 25V 3 OUT IN ILIM DI2CM Core (Digital Core Design) U2 MAX1776 FB 6 8 1 R5 165kΩ 1% R6 100kΩ 1% ILIM2 LX L1 10µH 4 D1 7 SHDN The DI2CM is an I2C-compatible master-IP core from Digital Core Design. Please contact Digital Core Design for any questions relating to the DI2CM IP core. See the Component Suppliers section for contact information or email Digital Core Design at [email protected] for more information. GND R7 0Ω +3.3V C18 100µF 6.3V 2 Figure 2. HS I2C-Compatible Module Schematic (Continued) Figure 3. HS I2C-Compatible Module Component Placement Guide—Component Side 4 _______________________________________________________________________________________ HS I2C-Compatible Module Evaluates: HS I2C-Compatible Parts Figure 4. HS I2C-Compatible Module PC Board Layout—Component Side _______________________________________________________________________________________ 5 Evaluates: HS I2C-Compatible Parts HS I2C-Compatible Module Figure 5. HS I2C-Compatible Module PC Board Layout—Solder Side Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 6 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2003 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.