EVB51JM128 Freescale Semiconductor, EVB51JM128 Datasheet - Page 16

• Manufacturer Part Number: EVB51JM128
• Description: BOARD EVAL FOR MCF51JM128 MCU
• Manufacturer: Freescale Semiconductor
• Series: ColdFire®r
• Type: MCUr

Specifications of EVB51JM128

• Contents: Evaluation Board
• Silicon Manufacturer: Freescale
• Core Architecture: Coldfire
• Core Sub-architecture: Coldfire V1
• Silicon Core Number: MCF51J
• Silicon Family Name: Flexis - MCF51JM
• Rohs Compliant: Yes
• For Use With/related Products: MCF51JM128
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

E V B 5 1 J M 1 2 8
Table 4: POT
Light Sensor
A surface-mount phototransistor, at RZ1, provides light sensitive, variable input for user appli-
cations. Current flow within the phototransistor is inversely proportional to light intensity inci-
dent on the surface of the device. A rail-to-rail OP amp at U5 boosts the photocell output to
useable levels.
Table 5: Light Sensor
Thermal Sensor
An NTC thermistor is provided for thermal sensing applications. The thermistor has an ambi-
ent resistance of 10K ohms. Device resistance falls with increasing temperature. The B pa-
rameter for this device equals 3900
Table 6: Thermal Sensor
External Drive Piezo Buzzer
A buzzer is provided for use applications requiring audible output. The buzzer is externally
driven with a center frequency (f
quencies ranging from 500 Hz to 5 kHz. The buzzer is connected to a timer channel on the
target MCU allowing frequency modulation.
Table 7: Buzzer
IR Diode
An IR diode is provided for infrared signaling use. The IR diode is connected to the high-
current IRO output from the target MCU.
λ Sensor
Thermal
Sensor
Buzzer
POT
U S E R
PTB2/SPSCK2/ADP2
PTD1/ADP9/ACMP-
PTD3/KBIP3/ADP10
B = 3900
PTF4/TMP2CH0
PTD4/ADP11
G U I D E
0
) of 2.3 kHz. The buzzer is capable of producing output fre-
15
F E B R U A R Y
1 ,
2 0 0 8