- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄358627 > 33742 (Motorola, Inc.) System Basis Chip (SBC) with Enhanced High-Speed CAN Transceiver PDF資料下載
參數(shù)資料
| 型號： | 33742 |
| 廠商： | Motorola, Inc. |
| 元件分類： | CAN |
| 英文描述： | System Basis Chip (SBC) with Enhanced High-Speed CAN Transceiver |
| 中文描述： | 系統(tǒng)基礎(chǔ)芯片的增強(qiáng)型（SBC）的高速CAN收發(fā)器 |
| 文件頁數(shù)： | 19/52頁 |
| 文件大?。?/td> | 1087K |
| 代理商： | 33742 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁當(dāng)前第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
33742
19
SCLK
This is the Serial Data Clock terminal of the serial peripheral
interface.
MISO
T
his is the Master In/Slave Out terminal of the serial
peripheral interface. Data are send from the device to the
microcontroller through MISO terminal.
MOSI
This is the Master Out/Slave In terminal of the serial
peripheral interface. Control data from the microcontroller are
received through this terminal.
CS
This is the device Chip Select terminal of the serial peripheral
interface. When this terminal is LOW, the internal serial
peripheral interface of the device is selected.
WDOG
The Watchdog terminal is used to signal that a software
watchdog has not been properly triggered.
DEVICE OPERATION
Power Supply
The 33742 is supplied from the battery line through the V
SUP
terminal. An external diode is required to protect against
negative transients and reverse battery. The 33742 can operate
from 4.5 VDC and under jump-start conditions at 27 VDC.
The V
SUP
terminal sustains standard automotive voltage
conditions such as load dump at 40 V. When V
SUP
falls below
3.0 V typical, the 33742 detects it and stores the information in
the Mode Control Register (MCR) bit BATFAIL
.
Detection is
available in all operation modes.
Note
For a detailed description of all the registers
mentioned in this section, refer to the section titled
SPI
INTERFACE AND REGISTER DESCRIPTION
beginning on
page 38.
The 33742 incorporates a battery early warning function,
which provides a maskable interrupt when the V
SUP
voltage is
below 6.0 V typical. A hysteresis is included. Operation is only
in Normal and Standby modes. V
SUP
LOW is reported in the
Input/Output Register (IOR).
V
DD
Regulator
The V
DD
regulator is a 5.0 V output with output current
capability up to 200 mA. It includes a voltage monitoring
circuitry associated with an undervoltage reset function. The
V
DD
regulator is fully protected against overcurrent and short
circuit. It has overtemperature detection warning flags (bit
VDDTEMP in the MCR and INTR registers) and
overtemperature shutdown with hysteresis.
V2 Regulator
V2 regulator circuitry is designed to drive an external pass
transistor increasing output current flexibility. Two terminals, V2
and V2CTRL, are used to achieve the flexibility. Output voltage
is 5.0 V and is realized by a tracking function of the V
DD
regulator. The recommended ballast transistor is MJD32C.
Other transistors can be used, however. Depending on the PNP
transistor gain, an external resistor-capacitor network might be
connected. V2 is the supply input for the CAN cell. The state of
V2 is reported in the IOR register (bit V2LOW set to logic [1] if
V2 is below 4.0 V typical).
HS V
SUP
Switch Output
HS output is a 2.0
typical switch from V
SUP
terminal. It
allows the supply of external switches and their associated
pullup or pulldown circuitry, in conjunction, for example, with the
wake-up input terminals L0:L3. Output current is limited to
200 mA and HS is protected against short circuit and has an
overtemperature shutdown (bit HSOT in the IOR register and bit
HSOT-V2LOW in the INTR register).
HS output is controlled by the bit HSON in the IOR register.
Thanks to an internal timer, HS can be activated at regular
intervals in Sleep and Stop modes. It can also be permanently
turned on in Normal or Standby modes to drive loads or supply
peripheral components. No internal clamping protection circuit
is implemented; thus dedicated external protection circuitry is
required in case of inductive load drive. HS negative voltage
should not go below -0.3 V.
Battery Fail Early Warning
Refer to the discussion under the heading
Power Supply
,
above.
Internal Clock
The 33742 has an internal clock used to generate all timings
(reset, watchdog, cyclic wake-up, filtering time, etc.). Two
oscillators are implemented. A high-accuracy (±12 percent)
oscillator used in Normal Request, Normal, and Standby
modes, and a low-accuracy (±30 percent) oscillator used in
Sleep and Stop modes.
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 33742S | System Basis Chip (SBC) with Enhanced High-Speed CAN Transceiver |
| 33793 | Distributed System Interface (DSI) Sensor Interface |
| 33887 | 5.0 A H-Bridge with Load Current Feedback |
| 33888 | Quad High-Side and Octal Low-Side Switch for Automotive |
| 33888A | Quad High-Side and Octal Low-Side Switch for Automotive |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 33742_08 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:System Basis Chip with Enhanced High Speed CAN Transceiver |
| 337429-000 | 制造商:TE Connectivity 功能描述:DATA BUS COMPONENTS A WIDE SELECTION OF COUPLERS SUCH AS MICROS, BOXES, FLAT-PACKS, AND ULTRA LIGHT WEIGHT VERSIONS 制造商:TE Connectivity 功能描述:BOX COUPLER - Bulk 制造商:TE Connectivity 功能描述:D-500-0255-561-1 |
| 33742S | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:System Basis Chip (SBC) with Enhanced High-Speed CAN Transceiver |
| 33-7435 | 制造商:Distributed By MCM 功能描述:High Performance LNB |
| 337439-000 | 制造商:TE Connectivity 功能描述:55/0314-26-9CS2793 - Cable Rools/Shrink Tubing |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。