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參數資料
| 型號： | TWR-MECH |
| 廠商： | Freescale Semiconductor |
| 文件頁數： | 17/46頁 |
| 文件大?。?/td> | 0K |
| 描述： | KIT TOWER ROBOT SENSOR MOTOR |
| 視頻文件： | Freescale Tower Overview - Another Geek Moment Freescale Tower Labs 1 & 2 - Another Geek Moment |
| 設計資源： | Tower Mechanical Drawing |
| 標準包裝： | 1 |
| 系列： | ColdFire® |
| 主要目的： | 機器人 |
| 嵌入式： | 是，MCU，32 位 |
| 已用 IC / 零件： | MCF52259，MMA8451Q，MPR121 |
| 主要屬性： | 32 位 MCU，3 軸加速傳感器，接觸式傳感器 |
| 已供物品： | 板 |
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Electrical Characteristics
MCF52259 ColdFire Microcontroller, Rev. 5
Freescale
24
2
Electrical Characteristics
This section contains electrical specification tables and reference timing diagrams for the microcontroller unit, including
detailed information on power considerations, DC/AC electrical characteristics, and AC timing specifications.
NOTE
The parameters specified in this data sheet supersede any values found in the module
specifications.
2.1
Maximum Ratings
Table 4. Absolute Maximum Ratings1, 2
1 Functional operating conditions are given in DC Electrical Specifications. Absolute Maximum Ratings
are stress ratings only, and functional operation at the maxima is not guaranteed. Stress beyond
those listed may affect device reliability or cause permanent damage to the device.
2 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 (VSS or VDD).
Rating
Symbol
Value
Unit
Supply voltage
VDD
–0.3 to
4.0
V
Clock synthesizer supply voltage
VDDPLL
–0.3 to
4.0
V
RAM standby supply voltage
VSTBY
+1.8 to 3.5
V
USB standby supply voltage
VDDUSB
–0.3 to
4.0
V
Digital input voltage 3
3 Input must be current limited to the I
DD 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.
VIN
–0.3 to
4.0
V
EXTAL pin voltage
VEXTAL
0 to 3.3
V
XTAL pin voltage
VXTAL
0 to 3.3
V
Instantaneous maximum current
Single pin limit (applies to all pins)4, 5
4 All functional non-supply pins are internally clamped to V
SS and VDD.
5 The power supply must maintain regulation within operating V
DD range during instantaneous and
operating maximum current conditions. If positive injection current (Vin > VDD) is greater than IDD, the
injection current may flow out of VDD and could result in the external power supply going out of
regulation. Ensure that the external VDD load shunts current greater than maximum injection current.
This is the greatest risk when the MCU is not consuming power (e.g., no clock).
IDD
25
mA
Operating temperature range (packaged)
TA
(TL - TH)
–40 to 85 or
0 to 706
6 Depending on the packaging; see orderable part number summary (Table 2)
C
Storage temperature range
Tstg
–65 to 150
C
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