DEMO9S08SF4 Freescale Semiconductor, DEMO9S08SF4 Datasheet - Page 8

• Manufacturer Part Number: DEMO9S08SF4
• Description: BOARD DEMO FOR S08SF4
• Manufacturer: Freescale Semiconductor
• Type: MCUr

Specifications of DEMO9S08SF4

• Contents: Board
• Processor To Be Evaluated: S08
• Data Bus Width: 8 bit
• Interface Type: USB
• Operating Supply Voltage: 5 V
• Silicon Manufacturer: Freescale
• Core Architecture: HCS08
• Core Sub-architecture: HCS08
• Silicon Core Number: MC9S08
• Silicon Family Name: S08SF
• Kit Contents: Board, USB A-to-B Cable, Get Started DVD, Printed
• Rohs Compliant: Yes
• For Use With/related Products: MC9S08SF4
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

D E M O 9 S 0 8 S F 4
U S E R
POWER SELECT
Power may be applied to the board through the integrated BDM circuitry, or through connector
J1. Power selection is achieved using 2 selection headers: the VOUT_SEL option header and
the VX_EN option header. Optionally, power may be sourced to external circuitry through
connector J1.
VOUT_SEL
The PWR_SEL option header allows the user to select power input either from either an
external power source connected to the VIN connector or from the integrated USB-BDM.
Figure 3 below details the PWR_SEL header connections.
Figure 3: VOUT_SEL Option Header
Power from the integrated BDM is drawn from the USB bus and is limited to 300 mA. This
current limit accounts for the total current supplied over the USB cable to the BDM circuit, the
target board, and any connected circuitry. Current drain in excess of value violates the USB
specification and will cause the USB bus to disconnect. This may cause the board to exhibit
power cycling where the board appears to turn off and back on continually. Damage to the
host PC or the target board may result.
G U I D E
Damage to the board may result if voltages greater than +5.5V are applied
● 3V
● 5V
powered from the integrated USB BDM. Damage to the target board or
5V
3V
Do not configure the target board to draw more than 300mA when
Enables +5VDC to target MCU (default)
Enables +3.3VDC to target MCU
host PC may result otherwise.
at connector J1 input.
CAUTION:
CAUTION:
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J U N E
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