CME-8GB60 AXIOM, CME-8GB60 Datasheet - Page 8

• Manufacturer Part Number: CME-8GB60
• Description: Microprocessor Development Tool
• Manufacturer: AXIOM

Specifications of CME-8GB60

• Silicon Manufacturer: Freescale
• Core Architecture: HC08
• Features: SPI And IIC Serial Ports, Regulated +3.3V Power Supply, Analog Or PTB I/O Port
• Silicon Core Number: MC9S08GB60
• Silicon Family Name: 68HC08
• Rohs Compliant: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

M 6 8 E V B 9 0 8 G B 6 0
0 2 / 1 7 / 0 6
POWER SUPPLY
Input power is applied by external connection to the J1 power jack or TB1 power terminal
block. The input supply is enabled to the voltage regulators by the ON_OFF switch. The
regulators are protected from reverse voltage by diode D3 and current limited by fuse FZ1.
Input voltage is regulated to +5V supply by VR1 and the +5V supply is regulated to the +3.3V
supply by VR2. With +6 to +20VDC applied and the ON_OFF switch in the ON position, the
+5V and +3.3V Indicators should be ON.
Fuse FZ1 will open during an over current condition. To reset FZ1, power should be removed
from the board and a cooling period of 20 minutes provided before reapplying power. During
the cooling period the cause of the over current condition should be corrected.
ON_OFF Switch
The ON_OFF slide switch provides board power on and off control. With the switch in the ON
position, the +5V and +3.3V power indicators should light. If no power indications occur,
review power and I/O connections and refer to the Troubleshooting guide in this manual.
J1 Power Jack
J1 provides the default power input to the board. The J1 power jack accepts a standard 2.0 ~
2.1mm center barrel plug connector (positive voltage center) to provide the +VIN supply of +6
to +20 VDC (+9VDC typical).
+Volts, 2mm center
TB1 Power Connector
TB1 provides access to the +VIN, GND (power ground), +5V and +3.3V power supplies. The
+VIN connection is not switched by the ON-OFF switch or fused. The +5V and +3.3V positions
can source 50ma each to external circuits. Applying +5V or +3.3V externally to power the
board from TB1 should not be performed. If the user needs more power, an additional voltage
regulator or source should be applied with a common ground connected at the TB1 GND
connection.
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