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| 型号： | MCZ33784EFR2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 6/30页 |
| 文件大小： | 0K |
| 描述： | IC SENSOR DBUS DSI 2.02 16-SOIC |
| 标准包装： | 2,500 |
| 类型： | 传感器接口 |
| 输入类型： | 模拟 |
| 输出类型： | 数字 |
| 接口： | 总线 |
| 电流 - 电源： | 4mA |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC N |
| 包装： | 带卷 (TR) |
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Analog Integrated Circuit Device Data
14
Freescale Semiconductor
33784
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
INPUT/OUTPUT PINS
There are three I/O pins on the 33784 that can serve as
either logic inputs or logic outputs. At power-up or after a
Clear Command, the pins default to inputs. They can be
individually configured as outputs as needed via the I/O
Control Command on the bus.
ADDRESSING
The 33784 may be connected in a daisy chain to other
DBUS devices. If this device is connected in a daisy chain,
then it will receive its 4-bit address during initialization on the
bus.
TEST MODE
The 33784 can be configured in a special test mode for
evaluation purposes. The test mode can only be entered if all
of the following conditions are true:
The TEST1 pin is at a logic high level
The correct test mode command is sent to the device on
the bus
One of the internal test mode registers is accessed
Accessing the test mode registers and writing different
values to them can change the behavior of many of the pins
on the device, including the TOUT pin, which is only active in
test mode. The test mode can be intermixed with other bus
commands to evaluate the behavior of internal circuit blocks.
To prevent accidental activation of the test mode, the
TEST1 pin should be tied externally to AGND. The TOUT pin
should be grounded when not in TEST mode.
Table 5. 10-Bit ADC Value Mapping
Hex
Description
03FF
Prohibited
03F9
Prohibited
03F8
Error Code
03F7
Prohibited
03E4
Prohibited
03E3
G Range
0020
G Range
001F
Prohibited
0000
Prohibited
Table 6. 8-Bit ADC Value Mapping
Hex
Description
FF
Prohibited
FE
Error Code
FD
Prohibited
FA
Prohibited
F9
Prohibited
F8
G Range
08
G Range
07
Prohibited
02
Prohibited
01
Prohibited
00
Prohibited
Table 6. 8-Bit ADC Value Mapping
Hex
Description
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