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33394 データシート(PDF) 3 Page - Freescale Semiconductor, Inc |
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33394 データシート(HTML) 3 Page - Freescale Semiconductor, Inc |
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3 / 44 page  33394 3 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA PIN FUNCTION DESCRIPTION (44–HSOP Package) PIN NO. NAME DESCRIPTION 1 VBAT Battery supply to IC (external reverse battery protection needed in some applications) 2 VBAT Battery supply to IC (external reverse battery protection needed in some applications) 3 KA_VBAT Keep alive supply (with internal protection diode) 4 VIGN Turn–On control through ignition switch (with internal protection diode) 5 VKAM VDDL tracking Keep Alive Memory (Standby) supply 6 VKAM_FB VKAM output feedback 7 VSEN Switched battery output 8 REGON Regulator “Hold On” input 9 WAKEUP CAN wake up event output 10 VREF1 VDDH tracking linear regulator 1 11 VPP_EN VPP enable 12 VPP 5.0 V/ 3.3 V FLASH memory programming supply, tracking VDDH/VDD3_3 13 VDD3_3 3.3 V regulated supply output, base drive for optional external pass transistor 14 VDD3_3FB VDD3_3 output feedback 15 VDDL_X VDDL optional external pass transistor base drive, operating in Boost Mode only 16 VDDL_B VDDL external pass transistor base drive 17 VDDL_FB VDDL output feedback 18 /PRERESET Open drain /PRERESET output, occurs 0.7 us prior to /HRESET (Hardware Reset) 19 /HRESET Open drain / HRESET (Hardware Reset) output 20 /PORESET Open drain / PORESET (Power On Reset) supervising VKAM supply to the microprocessor. 21 CANRXD CAN receive data (DOUT) 22 CANTXD CAN transmit data (DIN) 23 GND Ground 24 CANL CAN differential bus drive low line 25 CANH CAN differential bus drive high line 26 HRT Hardware Reset Timer pin (programmed with external capacitor and resistor) 27 /SLEEP Sleep Mode & Power Down control 28 CS SPI chip select 29 DI SPI serial data in 30 SCLK SPI clock input 31 DO SPI serial data out 32 VREF3 VDDH tracking linear regulator 3 33 VREF2 VDDH tracking linear regulator 2 34 VDDH 5.0 V regulated supply output 35 VPRE_S Switching pre–regulator output sense 36 VPRE Switching pre–regulator output 37 VCOMP Switching pre–regulator compensation (error amplifier output) 38 INV Switching pre–regulator error amplifier inverting input 39 GND Ground 40 SW2G External power switch (MOSFET) gate drive — Boost regulator 41 BOOT Bootstrap capacitor 42 SW1 Source of the internal power switch (n–channel MOSFET) 43 SW1 Source of the internal power switch (n–channel MOSFET) 44 SW1 Source of the internal power switch (n–channel MOSFET) NOTE: The exposed pad of the 44 HSOP package is electrically and thermally connected with the IC ground. Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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