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| 型号： | TWR-ELEV |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 8/48页 |
| 文件大小： | 0K |
| 描述： | TOWER ELEVATOR BOARDS HARDWARE |
| 其它有关文件： | TWR-ELEV Dummy Schematic TWR-ELEV Functional Schematic |
| 产品培训模块： | MCF51CN Family - Ultimate Ethernet Solutions Tower System |
| 特色产品： | The Tower System |
| 标准包装： | 1 |
| 系列： | ColdFire® |
| 附件类型： | 2 个升降机板 |
| 适用于相关产品： | Freescale 电源塔系统 |
| 产品目录页面： | 734 (CN2011-ZH PDF) |
| 相关产品： | TWR-SER-ND - TOWER SERIAL I/O HARDWARE TWR-MCF51CN-ND - KIT TOWER BOARD TWR-MCF51CN-KIT-ND - KIT TOWER BOARD/SERIAL/ELEVATOR |
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MCF51CN128 ColdFire Microcontroller Data Sheet, Rev. 4
Electrical Characteristics
Freescale Semiconductor
16
Figure 5. Pull-up and Pull-down Typical Resistor Values
17
P
Low-voltage detection threshold —
low range8
VLVDL
VDD falling
VDD rising
1.70
1.80
1.83
1.89
1.95
2.00
V
18
P
Low-voltage warning threshold —
high range8
VLVWH
VDD falling
VDD rising
2.50
2.62
2.70
V
19
P
Low-voltage warning threshold —
low range8
VLVWL
VDD falling
VDD rising
2.25
2.29
2.32
2.39
2.45
2.49
V
20
P Bandgap Voltage Reference10
VBG
—
1.151.171.18
V
1 Typical values are measured at 25
°C. Characterized, not tested
2 As an exception, the Fast Ethernet Controller (FEC) is only operational above the operating voltage of 3 V.
3 As the supply voltage rises, the LVD circuit will hold the MCU in reset until the supply has risen above V
LVDL.
4 All functional non-supply pins are internally clamped to V
SS and VDD.
5 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.
6 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 external power supply going out of regulation. Ensure external VDD load will shunt current 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
clock rate is very low (which would reduce overall power consumption).
7 Maximum is highest voltage that POR is guaranteed.
8 Low voltage detection and warning limits measured at 1 MHz bus frequency.
9 Run at 1 MHz bus frequency
10 Factory trimmed at V
DD = 3.3 V, Temp = 25 °C
Table 8. DC Characteristics (continued)
Num C
Characteristic
Symbol
Condition
Min
Typ1
Max
Unit
PULL-UP RESISTOR TYPICALS
VDD (V)
PULL-UP
RE
SISTO
R
(k
Ω
)
20
25
30
35
40
1.8
2
2.2
2.4
2.6
2.8
3
3.2
3.4
3.6
25
°C
85
°C
–40
°C
PULL-DOWN RESISTOR TYPICALS
VDD (V)
PUL
L
-D
OWN
R
E
SI
ST
ANCE
(
kΩ
)
20
25
30
35
40
1.8
2.3
2.8
3.3
25
°C
85
°C
–40
°C
3.6
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TWR-ELEV | 制造商:Freescale Semiconductor 功能描述:Tower System - Elevator Boards |
| TWR-FRAM | 功能描述:存储器 IC 开发工具 Freescale Tower FRAM Daughter Card RoHS:否 制造商:STMicroelectronics 产品:Reference Boards 工具用于评估:M24LR64-R 存储容量:64 kbit 存储类型:EEPROM 工作电源电压:1.8 V to 5.5 V |
| TWR-HW | 功能描述:WIRELESS RELAY 120/277 HARD WIRE 制造商:thomas research products 系列:ZenNet 零件状态:过期 配件类型:无线继电器 配套使用产品/相关产品:* 标准包装:1 |
| TWR-IND-IO | 功能描述:界面开发工具 IND CTRL Tower IO RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| TWR-K20D50M | 功能描述:开发板和工具包 - ARM PK20DX128VLH5 EvBrd RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V |
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