Datasheet
Table Of Contents
- Features
- RF/Analog
- Data Throughput
- Operating Conditions
- MAC/Baseband/Higher Layer Features
- Applications
- Description
- Table of Contents
- Most Current Data Sheet
- Errata
- Customer Notification System
- 1.0 Device Overview
- 2.0 Application Information
- 3.0 Electrical Characteristics
- 4.0 Radio Characteristics
- 5.0 Physical Dimensions
- 6.0 Reflow profile
- 7.0 Module Placement
- 8.0 Ordering Information
- 9.0 Regulatory Approval
- Appendix A: Revision History
- The Microchip WebSite
- Customer Change Notification Service
- Customer Support
- Product Identification System
- AMERICAS
- ASIA/PACIFIC
- ASIA/PACIFIC
- EUROPE
- Austria - Wels
- Denmark - Copenhagen
- Finland - Espoo
- France - Paris
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- Sweden - Stockholm
- UK - Wokingham
- Worldwide Sales and Service
- Trademarks
- Worldwide Sales and Service

RN4678
DS50002519D-Page 22 2016-2018 Microchip Technology Inc.
Figure 5-2 illustrates the recommended host PCB foot print.
FIGURE 5-2: RN4678 RECOMMENDED PCB FOOTPRINT
0.7mm
1.1mm
(Top View)
0.0
2.7
3.8
4.9
6.0
7.1
8.2
9.3
12.0
0.0
1.8
2.9
4.0
5.1
6.2
7.3
8.4
9.5
10.6
11.7
12.8
13.9
20.1
21.2
22.0
18.0
2.0
18.0
16.0
Keep Out Area
9.2
11.2
Top Copper
0.5mm
1.5mm
Silkscreen
area