TWR-MCF51MM Freescale Semiconductor, TWR-MCF51MM Datasheet - Page 16

• Manufacturer Part Number: TWR-MCF51MM
• Description: TOWER SYSTEM BOARD MCF51MM
• Manufacturer: Freescale Semiconductor
• Series: ColdFire®, Flexis™r
• Type: MCUr

Specifications of TWR-MCF51MM

• Contents: Board, 3 Modules, MED-EKG Kit, Cables, Documentation, DVD
• Product: Microcontroller Modules
• Data Bus Width: 32 bit
• Core Processor: MCF51MM
• Clock Speed: 32 KHz
• Interface Type: RS232, RS485, CAN , USB
• Flash: 256 KB
• Operating Supply Voltage: 3.3 V
• Silicon Manufacturer: Freescale
• Core Architecture: Coldfire
• Core Sub-architecture: Coldfire V1
• Silicon Core Number: MCF51
• Silicon Family Name: Flexis - MCF51MM
• Rohs Compliant: Yes
• For Use With/related Products: Freescale Tower System, MCF51MM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Electrical Characteristics
3.2
Absolute maximum ratings are stress ratings only, and functional operation at the maxima is not
guaranteed. Stress beyond the limits specified in the following table may affect device reliability or cause
permanent damage to the device. For functional operating conditions, refer to the remaining tables in this
section.
This device contains circuitry protecting against damage due to high static voltage or electrical fields;
however, it is advised that normal precautions be taken to avoid application of any voltages higher than
maximum-rated voltages to this high-impedance circuit. Reliability of operation is enhanced if unused
inputs are tied to an appropriate logic voltage level (for instance, either V
16
Freescale reserves the right to change the detail specifications as may be required to permit improvements in the design of its products.
Absolute Maximum Ratings
1
2
3
calculate resistance values for positive (V
resistance values.
All functional non-supply pins are internally clamped to V
Power supply must maintain regulation within operating V
current conditions. If positive injection current (V
V
greater than maximum injection current. This will be the greatest risk when the MCU is not consuming power.
Examples are: if no system clock is present, or if the clock rate is very low (which would reduce overall power
consumption).
#
1
2
3
4
5
Input must be current limited to the value specified. To determine the value of the required current-limiting resistor,
DD
and could result in external power supply going out of regulation. Ensure external V
Supply voltage
Maximum current into V
Digital input voltage
Instantaneous maximum current
Storage temperature range
Single pin limit (applies to all port pins)
Rating
Table 5. Absolute Maximum Ratings
DD
DD
) and negative (V
In
> V
1, 2, 3
DD
) is greater than I
SS
DD
and V
range during instantaneous and operating maximum
SS
) clamp voltages, then use the larger of the two
DD
Symbol
.
V
T
I
V
DD
I
DD
stg
D
In
DD
, the injection current may flow out of
–0.3 to V
SS
–0.3 to +3.8
–55 to 150
or V
DD
Value
 25
120
load will shunt current
DD
DD
+ 0.3
).
Freescale Semiconductor
Unit
mA
mA
C
V
V