FUNCTIONAL INTERNAL BLOCK DESCRIPTION FUNCT" />
參數(shù)資料
型號： MCZ33742EGR2
廠商： Freescale Semiconductor
文件頁數(shù)： 19/71頁
文件大?。?/td> 0K
描述： IC SYSTEM BASIS CHIP CAN 28-SOIC
標(biāo)準(zhǔn)包裝： 1,000
應(yīng)用： 自動
電流 - 電源： 42mA
電源電壓： 5.5 V ~ 18 V
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 28-SOIC（0.295"，7.50mm 寬）
供應(yīng)商設(shè)備封裝： 28-SOIC W
包裝： 帶卷 (TR)
Analog Integrated Circuit Device Data
26
Freescale Semiconductor
33742
FUNCTIONAL DEVICE OPERATION
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
FUNCTIONAL DEVICE OPERATION
SUPPLY VOLTAGE AT VSUP
The 33742 receives its operating voltage via the VSUP pin. An external diode is needed in series with the VSUP pin and the
supply voltage to protect the SBC against negative transients or from a reverse battery situation that can occur in a vehicle
application. The 33742 will operate from a supply voltage input as low as 4.5 VDC to as high as 27 VDC. The later voltage is
often encountered during a vehicle jump-start.
The VSUP pin can tolerate automotive transient conditions such as load dump to 40 V. The SBC is able to detect when VSUP
falls below 3.0 V typical. This under-voltage state is detected and retained in the parts Mode Control Register (MCR) as the
BATFAIL bit. This detection capability is available across all operating modes.
Note For a detailed description of all the registers mentioned in this section, refer to the section titled SPI Interface And
The SBC incorporates a VSUP level early warning function, which provides a maskable interrupt if the VSUP voltage level falls
below 6.0 V typical. Hysteresis is used to reduce false detections. The early warning function works only in Normal and Standby
operation modes. An under-voltage at the VSUP pin is reported in the Input/Output Register (IOR).
VDD REGULATOR
The VDD regulator provides a 5.0 V low dropout voltage capable of supplying up to 200 mA with monitoring circuitry for under-
voltage detection and a reset function. The VDD regulator is protected against over-current and short-circuit conditions. It has
over-temperature detection and will set warning flags (bit VDDTEMP in the MCR and INTR registers) and has over-temperature
shutdown with hysteresis.
V2 REGULATOR
The V2 regulator feature provides for a second 5.0 VDC voltage source The internal V2 circuitry will drive an external series
pass transistor, substantially increasing the available supply current. Two pins, the V2 and the V2CTRL, are used to sense and
drive the series pass transistor. The output voltage is 5.0 V and tracks the VDD regulator. The MJD32C transistor is
recommended for use as the external pass device. Other PNP transistors can be used but depending on the device’s gain, an
external resistor-capacitor network might be needed. V2 is also the supply voltage for the on-board CAN module. An under-
voltage condition for the V2 voltage is reported in the IOR Register (bit V2LOW set to logic [1] if V2 falls below 4.0 V typical).
HS VSUP SWITCH OUTPUT
The HS output is a 2.0
typical switch tied to the VSUP pin. It can power or bias external switches and their associated pull-
up or put-downs or other circuitry. An example is biasing a set of switches connected to the L0:L3 wake-up input pins. The HS
VSUP output current is limited to 200 mA and is protected against short-circuits conditions and will report an over-temperature
shutdown condition (bit HSOT in the IOR register and bit HSOT-V2LOW in the INTR register).
The HS output “on” state is set by the HSON bit in the IOR register. A cyclic mode of operation can be implemented using an
internal timer in the Sleep and Stop operating modes. It can also be turned on in Normal or Standby modes to drive loads or
supply peripheral components. No internal protection circuitry is provided, however. Dedicated chip protection circuitry is required
for inductive load applications. The HS output pin should not go below -0.3 V.
BATTERY FAIL EARLY WARNING
Refer to the previous discussion under the heading, Supply Voltage at VSUP.
INTERNAL CLOCK
The 33742 has an internal clock used to generate all timings (reset, watchdog, cyclic wake-up, filtering time, etc.). There are
two on-board oscillators: a higher accuracy (±12 percent) oscillator used in Normal Request, Normal, and Standby modes, and
a lower accuracy (±30 percent) oscillator used during Sleep and Stop modes.
相關(guān)PDF資料
PDF描述
ECM30DCAN CONN EDGECARD 60POS R/A .156 SLD
EVAL-ADCMP561BRQZ BOARD EVALUATION ADCMP561BRQZ
VI-BNB-EW CONVERTER MOD DC/DC 95V 100W
A3AAB-2036M IDC CABLE- ASC20B/AE20M/ASC20B
VI-BN2-EX CONVERTER MOD DC/DC 15V 75W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCZ33742SEG 功能描述:網(wǎng)絡(luò)控制器與處理器 IC SBC-E-HS-CAN RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
MCZ33742SEGR2 功能描述:網(wǎng)絡(luò)控制器與處理器 IC SBC-E-HS-CAN RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
MCZ33780EG 功能描述:多路器開關(guān) IC DBUS MASTER RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
MCZ33780EG 制造商:Freescale Semiconductor 功能描述:DUAL DBUS MASTER INTERFACE 16SOIC
MCZ33780EGR2 功能描述:多路器開關(guān) IC DBUS MASTER RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*