参数资料
型号: MCF51MM256VLL
厂商: Freescale Semiconductor
文件页数: 15/57页
文件大小: 0K
描述: IC MCU 32BIT 256K FLASH 100LQFP
标准包装: 90
系列: MCF51MM
核心处理器: Coldfire V1
芯体尺寸: 32-位
速度: 50MHz
连通性: CAN,EBI/EMI,I²C,SCI,SPI,USB OTG
外围设备: LVD,PWM,WDT
输入/输出数: 65
程序存储器容量: 256KB(256K x 8)
程序存储器类型: 闪存
RAM 容量: 32K x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 3.6 V
数据转换器: A/D 8x16b,D/A 1x12b
振荡器型: 外部
工作温度: -40°C ~ 105°C
封装/外壳: 100-LQFP
包装: 托盘
Electrical Characteristics
Freescale Semiconductor
22
20
VLVWH
Low-voltage
warning
threshold —
high range9
VDD falling
2.36
2.46
2.56
V
P
VDD rising
2.36
2.46
2.56
V
P
21
VLVWL
Low-voltage
warning
threshold —
low range9
VDD falling
2.11
2.16
2.22
V
P
VDD rising
2.16
2.21
2.27
V
P
22
Vhys
Low-voltage inhibit
reset/recoverhysteresis10
——
50
mV
C
23
VBG
Bandgap Voltage Reference11
1.110
1.17
1.230
V
P
1
Typical values are measured at 25
C. Characterized, not tested
2
As the supply voltage rises, the LVD circuit will hold the MCU in reset until the supply has risen above VLVDL.
3 Does not include analog module pins. Dedicated analog pins should not be pulled to VDD or VSS and should be left floating when not
used to reduce current leakage.
4 Measured with VIn = VDD.
5
All functional non-supply pins are internally clamped to VSS and VDD except PTD1.
6
Input must be current limited to the value specified. To determine the value of the required current-limiting resistor, calculate
resistance values for positive and negative clamp voltages, then use the larger of the two values.
7
Power supply must maintain regulation within operating VDD range during instantaneous and operating maximum current conditions.
If positive injection current (VIn > VDD) is greater than IDD, the injection current may flow out of VDD and could result in external power
supply going out of regulation. Ensure external VDD load will shunt current greater than maximum injection current. This will be the
greatest risk when the MCU is not consuming power. Examples are: if no system clock is present, or if clock rate is very low (which
would reduce overall power consumption).
8
Maximum is highest voltage that POR is guaranteed.
9
Run at 1 MHz bus frequency
10 Low voltage detection and warning limits measured at 1 MHz bus frequency.
11 Factory trimmed at V
DD = 3.0 V, Temp = 25C
Table 9. DC Characteristics (continued)
Num Symbol
Characteristic
Condition
Min
Typ1
Max
Unit
C
MCF51MM256/128, Rev. 5
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