User's Manual
Table Of Contents
- 1. Introduction
- 2. General Specification
- 3. Pin Definition
- 4. Physical Interfaces
- 5. Electrical Characteristic
- 6. Reference Design
- 7. Mechanical Characteristic
- 8. Recommended PCB Layout and Mounting Pattern
- 9. Recommended Reflow Profile
- 10. Ordering Information
FLC-BTM403 Series User Manual
Flaircomm Technologies Confidential
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3. Pin Definition
3.1 Pin Configuration
Figure 1: Pin Configuration
3.2 Pin Definition
Pin Symbol I/O Type Description
1 GND Ground Ground
2 VDD 3V3 power input 3V3 power input
3 PIO2
Bi-directional with
programmable strength internal
pull-up/down
Programmable input/output line
4 PIO3
Bi-directional with
programmable strength internal
pull-up/down
Programmable input/output line
5 UART_RTS
CMOS output, tri-state, with
weak internal pull-up
UART request to send active low
6 UART_RX
CMOS input with weak internal
pull-down
UART data input
7 PCM_OUT Bi-directional Synchronous Data Output
8 USB_DP Bi-directional
USB data plus with selectable internal 1.5Kohm
pull-up resistor