参数资料
型号: MC9S12C32CFU25
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP80
封装: QFP-80
文件页数: 12/136页
文件大小: 2022K
代理商: MC9S12C32CFU25
Device User Guide — 9S12C128DGV1/D V01.05
109
B.6 Reset, Oscillator and PLL
This section summarizes the electrical characteristics of the various startup scenarios for Oscillator and
Phase-Locked-Loop (PLL).
B.6.1 Startup
Table B-10 summarizes several startup characteristics explained in this section. Detailed description of the
startup behavior can be found in the Clock and Reset Generator (CRG) Block User Guide.
B.6.1.1 POR
The release level VPORR and the assert level VPORA are derived from the VDD Supply. They are also valid
if the device is powered externally. After releasing the POR reset the oscillator and the clock quality check
are started. If after a time tCQOUT no valid oscillation is detected, the MCU will start using the internal self
clock. The fastest startup time possible is given by nuposc.
B.6.1.2 LVR
The release level VLVRR and the assert level VLVRA are derived from the VDD Supply. They are also valid
if the device is powered externally. After releasing the LVR reset the oscillator and the clock quality check
are started. If after a time tCQOUT no valid oscillation is detected, the MCU will start using the internal self
clock. The fastest startup time possible is given by nuposc.
B.6.1.3 SRAM Data Retention
Provided an appropriate external reset signal is applied to the MCU, preventing the CPU from executing
code when VDD5 is out of specification limits, the SRAM contents integrity is guaranteed if after the reset
the PORF bit in the CRG Flags Register has not been set.
Table B-10 Startup Characteristics
Conditions are shown in Table A-4 unless otherwise noted
Num
C
Rating
Symbol
Min
Typ
Max
Unit
1
T
POR release level
VPORR
2.07
V
2
T
POR assert level
VPORA
0.97
V
3
D
Reset input pulse width, minimum input time
PWRSTL
2
tosc
4
D
Startup from Reset
nRST
192
196
nosc
5D
Interrupt pulse width, IRQ edge-sensitive
mode
PWIRQ
20
ns
6
D
Wait recovery startup time
tWRS
14
tcyc
相关PDF资料
PDF描述
MPC8245RZU400D 32-BIT, 400 MHz, RISC PROCESSOR, PBGA352
MC9328MXLDVH15 150 MHz, RISC PROCESSOR, PBGA256
MC9SDJ128BCFUR2 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP80
MC9S08SG16JTJR 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PDSO20
MC68HC11E0CFU3R2 8-BIT, 3 MHz, MICROCONTROLLER, PQFP64
相关代理商/技术参数
参数描述
MC9S12C32CFUE16 功能描述:16位微控制器 - MCU GOLDFISH RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
MC9S12C32CFUE25 功能描述:16位微控制器 - MCU GOLDFISH RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
MC9S12C32CPB16 制造商:FREESCALE-SEMI 功能描述:
MC9S12C32CPBE25 功能描述:16位微控制器 - MCU GOLDFISH RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
MC9S12C32MFA25 制造商:Freescale Semiconductor 功能描述:MCU 16BIT HCS12 CISC 32KB FLASH 2.5V/5V 48LQFP - Trays