PCB圖如下：

描述

Microchip PIN-44 開發(fā)分線板

此設(shè)計適用于 PIC 44 引腳 SMD 控制器。我已經(jīng)將此板設(shè)計為初始版本，一旦我們在項目中使用它就會得到增強。

這種板對于原型項目非常有用。我們計劃在板上添加一些必要的外圍 IC。我想聽聽您的意見，哪些是可以包括在內(nèi)的有用的外圍 IC。

這是完整的組件列表

1 cl - CPl_Small：Capacitor_SMD:CP_Elec_3x5.4

2 c2 - CPl_Small：電容器_SMD：CP_Elec_3x5.4

3 c3 - C：電容器_THT：C_Disc_D3.0mm_W2.0mm_P2.50mm

4 c4 - C：電容器_THT：C_Disc_D3.0mm_W2.0mm_P2.50mm

5 cs - C : Capacitor_SMD:C_1206_3216Metric_Padl.42x1.75mm_HandSolder

6 cé - C : Capacitor_SMD:C_1206_3216Metric_Padl.42x1.75mm_HandSolder

7 c7 - C：電容器_SMD：C_1206_3216Metric_Padl.42x1.75mm_HandSolder

8 cs - C : Capacitor_SMD:C_1206_3216Metric_Padl.42x1.75mm_HandSolder

9 Dl - LED : LED _SMD:LED 1206_321é￠Metric_Padl.42x1.7S5mm_HandSolder

10 D2 - LED : LED _SMD:LED 120€_321éMetric_Padl.42x1.7S5mm_HandSolder

ll dl - Conn_01x02：Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical

12 J2 - Conn_01x05：Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical

13 J3 - Conn_01x20：Connector_PinHeader_2.54mm:PinHeader_1lx20_P2.54mm_Vertical

14 J4 - Conn_01x20：Connector_PinHeader_2.54mm：PinHeader_1x20_P2.54mm_Vertical

15 Js - Conn_01x02：Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical

16 Rl - R：電阻器_SMD：R_1206_3216Metric_Padl.42x1.7Smm_HandSolder

17 R2 - R：電阻器_SMD：R_1206_3216Metric_Padl.42x1.75mm_HandSolder

18 R3 - R：電阻器_SMD：R_120€_321￠Metric_Padl.42x1.75mm_HandSolder

15 RS - R：電阻器_SMD：R_1206_3216Metric_Padl.42x1.75mm_HandSolder

20 swl - SW_Push : Button_Switch_THT:SW_PUSH_émm_HSmm

2l sww3 - SW_Push : Button_Switch_THT:SW_PUSH_émm_HSmm

22 Ul - 1M1117-5.0：Package_TO_SOT_SMD:SOT-223-3_TabPin2

23 U2 - PIC16F877A-IPT：封裝_QFP：TOQFP-44_10xl0mm_P0.Smm

24 Yl - 水晶：Crystal:Crystal_HC49-4H Vertical