TWR-MCF51MM Freescale Semiconductor, TWR-MCF51MM Datasheet - Page 22

• 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
22
Freescale reserves the right to change the detail specifications as may be required to permit improvements in the design of its products.
1
2
3
4
5
6
7
8
9
10
11
Num Symbol
20
21
22
23
Typical values are measured at 25C. Characterized, not tested
As the supply voltage rises, the LVD circuit will hold the MCU in reset until the supply has risen above V
Does not include analog module pins. Dedicated analog pins should not be pulled to V
used to reduce current leakage.
Measured with V
All functional non-supply pins are internally clamped to V
Input must be current limited to the value specified. To determine the value of the required current-limiting resistor, calculate
resistance values for positive and negative clamp voltages, then use the larger of the two values.
Power supply must maintain regulation within operating V
If positive injection current (V
supply going out of regulation. Ensure external V
greatest risk when the MCU is not consuming power. Examples are: if no system clock is present, or if clock rate is very low (which
would reduce overall power consumption).
Maximum is highest voltage that POR is guaranteed.
Run at 1 MHz bus frequency
Low voltage detection and warning limits measured at 1 MHz bus frequency.
Factory trimmed at V
V
V
V
V
LVWH
LVWL
hys
BG
Low-voltage
warning
threshold —
high range
Low-voltage
warning
threshold —
low range
Low-voltage inhibit
reset/recoverhysteresis
Bandgap Voltage Reference
In
= V
DD
DD
= 3.0 V, Temp = 25C
.
9
Characteristic
9
In
> V
DD
) is greater than I
Table 9. DC Characteristics (continued)
V
V
V
V
DD
DD
DD
DD
10
falling
rising
falling
rising
11
DD
load will shunt current greater than maximum injection current. This will be the
DD
, the injection current may flow out of V
DD
SS
range during instantaneous and operating maximum current conditions.
and V
Condition
—
—
—
—
—
—
DD
except PTD1.
1.110
2.36
2.36
2.11
2.16
Min
—
DD
or V
SS
DD
Typ
2.46
2.46
2.16
2.21
1.17
and should be left floating when not
50
and could result in external power
1
LVDL
1.230
Max
2.56
2.56
2.22
2.27
—
Freescale Semiconductor
.
Unit
mV
V
V
V
V
V
C
C
P
P
P
P
P