参数资料
型号: MCF52234CVM60
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 60 MHz, RISC MICROCONTROLLER, PBGA121
封装: 12 X 12 MM, 1 MM PITCH, PLASTIC, MAPBGA-121
文件页数: 29/55页
文件大小: 636K
代理商: MCF52234CVM60
Electrical Characteristics
MCF52235 ColdFire Microcontroller Data Sheet, Rev. 10
Freescale Semiconductor
35
2.5
General Purpose I/O Timing
GPIO can be configured for certain pins of the QSPI, timers, UARTs, FEC, and interrupts. When in GPIO mode, the timing
specification for these pins is given in Table 26 and Figure 6.
The GPIO timing is met under the following load test conditions:
50 pF / 50
for high drive
25 pF / 25
for low drive
Figure 6. GPIO Timing
7 This value has been updated
8 Load capacitance determined from crystal manufacturer specifications and include circuit board parasitics.
9 Assuming a reference is available at power up, lock time is measured from the time V
DD and VDDPLL are valid to RSTO
negating. If the crystal oscillator is the reference for the PLL, the crystal start up time must be added to the PLL lock time to
determine the total start-up time.
10 Jitter is the average deviation from the programmed frequency measured over the specified interval at maximum f
sys.
Measurements are made with the device powered by filtered supplies and clocked by a stable external clock signal. Noise
injected into the PLL circuitry via VDDPLL and VSSPLL and variation in crystal oscillator frequency increase the Cjitter percentage
for a given interval
11 Based on slow system clock of 40 MHz measured at f
sys max.
Table 26. GPIO Timing
Num
Characteristic
Symbol
Min
Max
Unit
G1
CLKOUT high to GPIO output valid
tCHPOV
—10
ns
G2
CLKOUT high to GPIO output invalid
tCHPOI
1.5
ns
G3
GPIO input valid to CLKOUT high
tPVCH
9—
ns
G4
CLKOUT high to GPIO input invalid
tCHPI
1.5
ns
G1
CLKOUT
GPIO Outputs
G2
G3
G4
GPIO Inputs
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相关代理商/技术参数
参数描述
MCF52234CVM60J 功能描述:32位微控制器 - MCU MCU 32-Bit RoHS:否 制造商:Texas Instruments 核心:C28x 处理器系列:TMS320F28x 数据总线宽度:32 bit 最大时钟频率:90 MHz 程序存储器大小:64 KB 数据 RAM 大小:26 KB 片上 ADC:Yes 工作电源电压:2.97 V to 3.63 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:LQFP-80 安装风格:SMD/SMT
MCF52235 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:ColdFire Microcontroller
MCF52235_06 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:ColdFire㈢ Microcontroller
MCF52235_07 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Microcontroller
MCF52235_10 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:MCF52235 ColdFire Microcontroller Data Sheet