參數(shù)資料
型號： MC9S12UF32PB
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 60 MHz, MICROCONTROLLER, PQFP64
封裝： LQFP-64
文件頁數(shù)： 101/128頁
文件大?。?/td> 1785K
代理商： MC9S12UF32PB
System on a Chip Guide — 9S12UF32DGV1/D V01.05
74
Freescale Semiconductor
Integration Module (PIM) PIM_9UF32 Block Guide and the TIM_16B8C Block Guide for information
about pin configurations.
2.5.40 PU0 / CFWAIT / ATAIORDY / SCD — Port U I/O Pin 0
PU0 is a general purpose input or output pin. This pin can be used as CFWAIT of CFHC module,
ATAIORDY of ATA5HC module or SCD of SMHC module. Refer to Table 2-2 for module routing
information. While in reset and immediately out of reset the PU0 pin is configured as a high impedance
input pin. Consult the Port Integration Module (PIM) PIM_9UF32 Block Guide, the CFHC Block Guide
and the ATA5HC Block Guide for information about pin configurations.
2.6 Power Supply Pins
MC9S12UF32 power and ground pins are described below.
Table 2-5 MC9S12UF32 Power and Ground Connection Summary
NOTE:
All VSS pins must be connected together in the application. Because fast signal
transitions place high, short-duration current demands on the power supply, use
bypass capacitors with high-frequency characteristics and place them as close to
the MCU as possible. Bypass requirements depend on MCU pin load.
2.6.1 VDDR, VSSR - Power & Ground Pins for I/O Drivers & for Internal
Voltage Regulator
External power and ground for I/O drivers of Port E, PWROFF3V, PWROFF5V, BKGD, TEST, RESET,
VREGEN, and REG3V. Also input to the internal voltage regulator.
Mnemonic
Nominal
Voltage
Description
VDDR
5.0V
External power and ground, supply to internal voltage regulator and
supply to pin drivers for Port E, PWROFF3V, PWROFF5V, REF3V,
VREGEN, BKDG and RESET.
VSSR
0 V
VDD
2.5V
Internal digital core power generated by internal regulator.
VDDX
3.3/5.0 V
External power and ground, supply to pin drivers for Ports A, B, R, S
and U.
VSSX
0 V
VDD3X
3.3/5.0 V
External power and ground, supply to pin drivers for Port J, M, P, Q and
T.
VSS3X
0 V
VDDA
3.3V
Internal power and ground for USB PHY generated by internal regulator.
VSSA
0V
VSSA1
0V
相關(guān)PDF資料
PDF描述
MC9S12UF32PU 16-BIT, FLASH, 60 MHz, MICROCONTROLLER, PQFP100
MC9S12XD384CFV 16-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP144
MC9SD64CPVR2 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
MC9SD64VFUR2 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP80
MC9SDJ64MPVR2 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
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