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参数资料
| 型号： | MCZ33781EK |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, PDSO32 |
| 封装： | 0.65 MM, LEAD FREE, SOIC-32 |
| 文件页数： | 8/44页 |
| 文件大小： | 940K |
| 代理商： | MCZ33781EK |
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Analog Integrated Circuit Device Data
16
Freescale Semiconductor
33781
FUNCTIONAL DESCRIPTIONS
FUNCTIONAL PIN DESCRIPTIONS
LOW SIDE BUS (DnL)
There are four independent low side outputs, D0L, D1L,
D2L and D3L. They comprise the low side differential output
signal of the DBUS physical layer as shown in Figure 5. They
also provide power to the slave modules during the DBUS
idle time. The output of DnL should have a bypass capacitor
of 2.2nF to ground.
HIGH SIDE BUS (DnH)
There are four independent high side outputs, D0H, D1H,
D2H, and D3H. They comprise the high side differential
output signal of the DBUS physical layer. They also provide
power to the slave modules during the DBUS idle time. See
Figure 5. The output of DnH should have a bypass capacitor
of 2.2nF to ground.
POSITIVE SUPPLY FOR BUS OUTPUT (VSUPn)
This 9.0V to 25V power supply is used to provide power to
the slave devices attached to the DBUS. During the bus idle
time, the storage capacitors in the slave modules are charged
up to maintain a regulated supply to the slave device. VSUP1
powers devices DBUS0 and DBUS1, and VSUP2 powers
devices on DBUS2 and DBUS3. See Figure 9.
The two supplies are interdependent internally, however,
VCM_REF voltage for all four driver buffers, and VSUP2 is used
to supply the charge pump voltage. Consequently, both
VSUP1 and VSUP2 are required for internal functions: for
example, the internal voltage regulator VREG_8V is supplied
from VSUP1, but uses the VSUP2-derived charge pump
voltage to supply the output NMOS devices.
PSEUDO BUS (DPH AND DPL)
These bus high and bus low pins are created by closing
the pseudo bus switches attached to the D0H and D0L bus
lines internal to the 33781. This allows a second external set
of bus lines to communicate over the D0 Channel. The
pseudo bus switches are controlled by the system MCU
through SPI0.
Figure 9. VSUP Block Diagram
VSUP
Voltage
Monitor
VMID
Reference
for common mode voltage
VREG_8V
Voltage Regulator
VCharge_pump
DBUS 0
Driver/ Receiver
DBUS 3
Driver/ Receiver
DBUS 1
DBUS 2
RNE control for ch0, ch1, ch2
and ch3 status register
VCP
V_8V
VCM_REF
VSUP2 (21)
GND (18)
VSUP1 (27)
GND (32)
D0H/L
D1H/L
GND (24)
D2H/L
D3H/L
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCZ33781EKR2 | 功能描述:输入/输出控制器接口集成电路 DBUS2 MASTER STND RoHS:否 制造商:Silicon Labs 产品: 输入/输出端数量: 工作电源电压: 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-64 封装:Tray |
| MCZ33784EF | 功能描述:加速计 - 板上安装 DBUS2 SENSOR INTERFACE RoHS:否 制造商:Murata 传感轴:Double 加速:12 g 灵敏度: 封装 / 箱体: 输出类型:Analog 数字输出 - 位数:11 bit 电源电压-最大:5.25 V 电源电压-最小:4.75 V 电源电流:4 mA 最大工作温度:+ 125 C 最小工作温度:- 40 C |
| MCZ33784EF/R2- | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:DSI 2.02 Sensor Interface |
| MCZ33784EFR2 | 功能描述:加速计 - 板上安装 DBUS2 SENSOR INTERFACE RoHS:否 制造商:Murata 传感轴:Double 加速:12 g 灵敏度: 封装 / 箱体: 输出类型:Analog 数字输出 - 位数:11 bit 电源电压-最大:5.25 V 电源电压-最小:4.75 V 电源电流:4 mA 最大工作温度:+ 125 C 最小工作温度:- 40 C |
| MCZ33789AE | 功能描述:网络控制器与处理器 IC Airbag ASSP RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
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