Header Board Specification
20-Pin Header – PIC16F690
For the PIC16F690 20-pin header, you will need to set the S1 switches (Figure 2) to
enable peripherals and choose devices (Table 3).
FIGURE 2:
S1 SWITCH HARDWARE
ENABLE
ADC
4kPFM
USART
SSP
Switch configuration at left shows all
peripherals enabled, which is the setting to
select the PIC16F690 device.
ON
ECCP
TABLE 3: S1 SWITCH DEVICE SELECTION
Device
PIC16F631
PIC16F677
ADC
0
1
4k PFM
0 *
0 **
Switches
USART
0
0
SSP
0
1
ECCP
0
0
PIC16F685
1 1 0
0
1
PIC16F687
1 0 **
1
1
0
PIC16F689
PIC16F690
1 1 1
1 1 1
1
1
0
1
Legend: 1 = Enabled 0 = Disabled * = 1k PFM ** = 2k PFM
20-Pin Header – PIC16F785
For the PIC16F785 20-pin header, you will need to connect the jumper J2 to enable the
shunt regulator.
Device
PIC16F785
PIC16HV785
Device Type
F
HV
Jumper Setting
1-2
2-3
Function
Disable shunt regulator
Enable shunt regulator
28/40/44-Pin Header – PIC18F45J10
For the PIC18F45J10 header, you will need to connect jumpers J2 and J3 to select
between the LF and F versions of devices.
Device
Device Type
Jumper J2
Jumper J3
Function
PIC18LFXXJ10 LF 1-2
PIC18FXXJ10 F 2-3
* V DD core must be supplied externally.
? 2006 Microchip Technology Inc.
1-2
2-3
Disable voltage regulator*
Enable voltage regulator
DS51292M-page 5
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