Silicon Laboratories C8051F040DK User Manual page 11

6.9. Expansion I/O Connector (J24)
The 96-pin expansion I/O connector J24 is used to connect daughter boards to the main target board. J24 provides
access to many C8051F040 signal pins. Pins for +3 V, digital ground, analog ground and the unregulated power
supply (VUNREG) are also available. The VUNREG pin is connected directly to the unregulated +V pin of the P1
power connector. See Table 7 for a complete list of pins available at J24.
The J24 socket connector is manufactured by Hirose Electronic Co. Ltd, part number PCN13-96S-2.54DS, Digi-
Key part number H7096-ND. The corresponding plug connector is also manufactured by Hirose Electronic Co. Ltd,
part number PCN10-96P-2.54DS, Digi-Key part number H5096-ND.
Pin #
A-1
A-2
A-3
A-4
A-5
A-6
A-7
A-8
A-9
A-10
A-11
A-12
A-13
A-14
A-15
A-16
A-17
A-18
A-19
A-20
A-21
A-22
A-23
A-24
A-25
A-26 AGND (Analog Gnd)
A-27
A-28
A-29
A-30
A-31
A-32
Downloaded from Elcodis.com electronic components distributor
Table 7. J24 Pin Descriptions
Description Pin #
+3 VD2 (+3.3 VDC) B-1
MONEN B-2
P1.5 B-3
P1.2 B-4
P2.7 B-5
P2.4 B-6
P2.1 B-7
P3.6 B-8
P3.3 B-9
P3.0 B-10
P0.5 B-11
P0.2 B-12
P7.7 B-13
P7.4 B-14
P7.1 B-15
P6.6 B-16
P6.3 B-17
P6.0 B-18
P5.5 B-19
P5.2 B-20
P4.7 B-21
P4.4 B-22
P4.1 B-23
TCK B-24
/RST B-25 DGND (Digital Gnd)
B-26
CANRX B-27
B-28
VREF0 B-29
HVAIN+ B-30
AIN0.3 B-31
AIN0.0 B-32 AGND (Analog Gnd)
Description Pin #
DGND (Digital Gnd) C-1
P1.7 C-2
P1.4 C-3
P1.1 C-4
P2.6 C-5
P2.3 C-6
P2.0 C-7
P3.5 C-8
P3.2 C-9
P0.7 C-10
P0.4 C-11
P0.1 C-12
P7.6 C-13
P7.3 C-14
P7.0 C-15
P6.5 C-16
P6.2 C-17
P5.7 C-18
P5.4 C-19
P5.1 C-20
P4.6 C-21
P4.3 C-22
P4.0 C-23
TDI C-24
C-25
DAC1 C-26
CANTX C-27
VREF C-28
VREF2 C-29
HVCAP C-30
AIN0.2 C-31
C-32 AV+ (+3.3 VDC Analog)
Rev. 0.6
C8051F04x-DK
Description
XTAL1
P1.6
P1.3
P1.0
P2.5
P2.2
P3.7
P3.4
P3.1
P0.6
P0.3
P0.0
P7.5
P7.2
P6.7
P6.4
P6.1
P5.6
P5.3
P5.0
P4.5
P4.2
TMS
TDO
VUNREG
DAC0
VREFD
HVAIN-
HVREF
AIN0.1
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