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Part I: Basic Hacks, Tools, and Techniques
Exhibit A: Furby Bill of Materials
Item Quantity Notes
Furby 1
Ceramic capacitor, 0.1uf 9 C2, C3, C4, C5, C6, C7, C8, C9, C11
Resistor, 100K Ohms 10 R1, R3, R4, R7, R8, R9, R13, R14, R18, R19
Resistor, 10K Ohms 7 R10, R11, R17, R20, R21, R22, R23
Electrolytic capacitor, 100uf 1 C1
Resistor, 1K Ohms 2 R5, R15
Resistor, 105 mega Ohms 1 R2b
Crystal oscillator, 20 MHz 1 U3
Resistor, 220K Ohms 1 R12
Resistor, 514K Ohms 1 R2a
Integrated circuit, 74HC04 Hex Inverter 1 U4
Integrated circuit, AT45D081 1 MegaByte Serial
Interface FLASH Memory
1 U8
Integrated circuit, MAX221 +5V RS-232 Interface 1 U6
Integrated circuit, MAX4168 Precision Operational
Amplifier
1 U7
Integrated circuit, MAX5480 Digital to Analog
Converter
1 U5
Integrated circuit, MAX883 Low Dropout Linear
Voltage Regulatro
1 U2
Phone jack 1 JK1
Integrated circuit, T89C51RD2 FLASH Memory Micro
Controller
1 U1
Circuit board 1 PCB
Soldering iron 1
Solder 1 roll No-clean solder
Solder wick 1 roll
Printer’s knife 1
Hand tools (small pliers, wire cutters) 1 of each
PC (for programming) 1
Multi-meter 1
Exhibit A
ch05_furby.indd 98
1/21/2002 12:33:21 PM
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