参数资料
型号: SPC5634MF1MMG80
厂商: Freescale Semiconductor
文件页数: 89/122页
文件大小: 0K
描述: IC MCU FLASH 1.5M 94K 208-PBGA
标准包装: 90
系列: MPC56xx Qorivva
核心处理器: e200z3
芯体尺寸: 32-位
速度: 80MHz
连通性: CAN,EBI/EMI,LIN,SCI,SPI,UART/USART
外围设备: DMA,POR,PWM,WDT
输入/输出数: 114
程序存储器容量: 1.5MB(1.5M x 8)
程序存储器类型: 闪存
RAM 容量: 94K x 8
电压 - 电源 (Vcc/Vdd): 4.5 V ~ 5.25 V
数据转换器: A/D 34x12b
振荡器型: 内部
工作温度: -40°C ~ 150°C
封装/外壳: 208-BGA
包装: 托盘
Electrical characteristics
MPC5634M Microcontroller Data Sheet, Rev. 9
Freescale Semiconductor
69
4.6.2
Recommended power transistors
The following NPN transistors are recommended for use with the on-chip voltage regulator controller: ON SemiconductorTM
BCP68T1 or NJD2873 as well as Philips SemiconductorTM BCP68. The collector of the external transistor is preferably
connected to the same voltage supply source as the output stage of the regulator.
4.7
Power up/down sequencing
There is no power sequencing required among power sources during power up and power down, in order to operate within
specification but use of the following sequence is strongly recommended when the internal regulator is bypassed:
5V
3.3 V and 1.2 V
This is also the normal sequence when the internal regulator is enabled.
Although there are no power up/down sequencing requirements to prevent issues like latch-up, excessive current spikes, etc.,
the state of the I/O pins during power up/down varies according to table Table 20 for all pins with fast pads and Table 21 for all
pins with medium, slow and multi-voltage pads.1
Table 19. Recommended operating characteristics
Symbol
Parameter
Value
Unit
hFE () DC current gain (Beta)
60 – 550
PD
Absolute minimum power dissipation
>1.0
(1.5 preferred)
W
ICMaxDC Minimum peak collector current
1.0
A
VCESAT Collector-to-emitter saturation voltage
200–6001
1 Adjust resistor at bipolar transistor collector for 3.3 V/5.0 V to avoid VCE < VCESAT
mV
VBE
Base-to-emitter voltage
0.4–1.0
V
1.If an external 3.3V external regulator is used to supply current to the 1.2V pass transistor and this supply also supplies
current for the other 3.3V supplies, then the 5V supply must always be greater than or equal to the external 3.3V supply.
Table 20. Power sequence pin states for fast pads
VDDE
VRC33
VDD
Fast (pad_fc)
LOW
X
LOW
VDDE
LOW
X
HIGH
VDDE
VRC33
LOW
HIGH IMPEDANCE
VDDE
VRC33
VDD
FUNCTIONAL
Table 21. Power sequence pin states for medium, slow and multi-voltage pads
VDDEH
VDD
Medium (pad_msr_hv)
Slow (pad_ssr_hv)
Multi-voltage (pad_multv_hv)
LOW
X
LOW
VDDEH
LOW
HIGH IMPEDANCE
VDDEH
VDD
FUNCTIONAL
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