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参数资料
| 型号： | PB52233SLK |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 8/20页 |
| 文件大小： | 0K |
| 描述： | PROJ BOARD COLDFIRE M52 |
| 标准包装： | 1 |
| 系列： | ColdFire® |
| 套件包括： | 零件与说明 |
OPERATION
POWER
The AP52233SLK is designed to allow application development while powered from the
USB_BDM. A 2.0mm barrel connector and a 2-position, screw-type, terminal block (BATT)
has been applied to support stand-alone operation. The board may also be powered through
connector J1. Additionally, the board may be configured to supply power through connector J1
to external circuitry. An OFF/ON switch allows the user to quickly and easily connect and
disconnect all power sources.
When using the integrated USB-BDM, the board draws power from the USB bus. Excessive
current drain will violate the USB specification causing the USB bus to disconnect forcing a
POR. Total current consumption of the board and connected circuitry, therefore, must be less
than 500mA .
CAUTION: Violating the USB specification will cause the USB bus to disconnect. This will
force a hard reset on the target.
The installed barrel connector accepts a center-positive, 2.1m barrel plug. The terminal block
accepts wire sizes ranging from 28ga to 16ga. Voltage input must be in the range between
+5V and +15V. At no time should input voltage exceed +15V as damage to the board may
result. The terminal block input is connected directly to the upper voltage rail. Input protection
is not applied on this voltage input. The user must exercise caution when using the terminal
block to input power to the board.
Voltage supplied through connector J1 is also connected directly to the board voltage rails. No
protection is applied on this input and the user must exercise caution when powering the board
from connector J1.
CAUTION: Input protection is NOT applied to the J1 or BATT power inputs. Excessive input
voltage or current will damage the board.
POWER JACK
The PWR power jack consists of a 2.1mm, center-positive, barrel connector. Voltage applied at
this connector should range between +5V and +15V.
Figure 1: PWR Jack
8
Freescale Semiconductor
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