User manual
GPIO Expander Keypad and LCD Demo Board User’s Guide
DS51636A-page 22 © 2006 Microchip Technology Inc.
16 R32, R33, R34,
R36, R37, R38,
R39, R40, R41,
R42, R43, R44,
R45, R46, R47,
R48
RES 100 OHM 1/10W 3900PPM
5%0805
Panasonic - ECG ERA-S39J101V
1 R49 RES 33.2K OHM 1/8W 1% 0805 SMD Yageo
®
Corporation RC0805FR-0733K2L
2 R50, R52 RES 475 OHM 1/10W 1% 0603 SMD Panasonic - ECG ERJ-3EKF4750V
1 R51 RES 100K OHM 1/8W 5% 0805 SMD Panasonic - ECG ERJ-6GEYJ104V
17 S11, S12, S13,
S14, S15, S16,
S17, S18, S19,
S20, S21, S22,
S23, S24, S25,
S26, S27
SWITCH TACT 6MM SMD MOM 160GF Omron Electronics Inc B3S-1000
1 TP1 TEST POINT PC MULTI PURPOSE
BLK
Keystone Electronics
®
5011
1 TP2 TEST POINT PC MULTI PURPOSE
RED
Keystone Electronics 5010
1 U1 16 Bit I/O Expander with Serial Interface Microchip Technology
Inc
MCP23S17-E/SS
1 U2 8-Bit I/O Expander with SPI Interface Microchip Technology
Inc
MCP23S08-E/SS
1 U3 16 Bit I/O Expander with Serial Interface Microchip Technology
Inc
MCP23017-E/SS
1 U4 8-Bit I/O Expander with I
2
C Interface Microchip Technology
Inc
MCP23008-E/SS
1 U5 44-Pin, High-Performance, Enhanced
Flash, USB Microcontroller
Microchip Technology
Inc
PIC18F4550
1U6 2 μA Low Dropout Positive Voltage
Regulator
Microchip Technology
Inc
MCP1702T-5002I/CB
1 U7 MOSFET P-CH 20V 850MA SSOT3 Fairchild
Semiconductor
®
NDS352P
1 Y1 CRYSTAL 20.0000 MHZ SERIES RES
*Do Not Populate*
CTS-Frequency
Controls
ATS200
TABLE B-1: BILL OF MATERIALS (CONTINUED)
Qty
Reference
Designator
Description Manufacturer Part Number
Note 1: The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM
used in manufacturing uses all RoHS-compliant components.