Datasheet > 33902

33902

更新时间： 2022-12-14 19:14:06

品牌	Logo	应用领域
飞思卡尔 - FREESCALE		/
页数	文件大小	规格书
31页	700K
描述
High Speed CAN Interface with Embedded 5.0 V Supply

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数据手册

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33902 数据手册

COMPARISON WITH COMPETITION 14 PIN HIGH SPEED CAN TRANS-

CEIVER

COMPARISON WITH COMPETITION 14 PIN HIGH SPEED CAN TRANSCEIVER

The table below is a comparison between the MC33902 and the competition 14 pin high speed CAN transceiver having no

embedded power supply.

Item

MC33902

Competition w/o Embedded Regulator

V_DDpin

Output. Requires local decoupling capacitor(s). No extra Input. Requires connection to a 5.0 V supply.

load should be connected.

Wake pin

ERR pin

Fixed threshold typ 3.0 V with hysteresis. No pull-up or

pull-down. High-impedance input. Connect to GND when threshold. Active pull-down when input is below threshold.

not used.

Threshold V_BAT-3.0 V. Active pull-up when input is above

Active low, reports flags, or used as MISO during P_SPI Active low, reports flags, weak driver, requiring 8.0 μs

communication. Strong driver (capability typ. 3.0 mA).

stabilization time

EN and STBY pins Input used for static mode control. Used as CLOCK and Input used for mode control.

MOSI during P_SPI communication.

Bus dom failure

flag

Failure reported on ERR pin in Normal mode

(considered as a bus failure => reported in Normal mode) (considered as a local failure)

Failure reported on the ERR pin in Listen Only mode

V_DDlow flag

No effect on device mode. Failure on CAN transceiver

supply should not affect the complete ECU. V_DDis

disabled “locally” to reduce current consumption. The

ERR pin is set low in Normal and Listen Only mode. V_DD

low threshold set at 4.25 V

Set the device into Sleep mode. INH is turned OFF. If the ECU

regulator is controlled by INH, ECU is turned OFF.

V_IOlow flag

Same

Wake-up time

From Sleep or Standby mode, device needs 35 μs typ. to No need for a delay for device ready.

be ready.

Transition time

At least 8.0 μs, to differentiate between a static transition Immediate transition. However, the ERR pin has weak driver

and P_SPI communication

and an 8.0 μs stabilization time is required. When the device

is switched between Normal and Listen Only mode to check

the fail flag, a delay of 8.0 μs is needed.

33902

Analog Integrated Circuit Device Data

Freescale Semiconductor

1...25 26 272829 30 31

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