参数资料
型号: SPC5632MF0MLQA4
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: FLASH, 40 MHz, MICROCONTROLLER, PQFP144
封装: 20 X 20 MM, 0.50 MM PITCH, 1.40 HEIGHT, ROHS COMPLIANT, LQFP-144
文件页数: 91/122页
文件大小: 1173K
代理商: SPC5632MF0MLQA4
MPC5634M Microcontroller Data Sheet, Rev. 6
Electrical characteristics
Freescale Semiconductor
70
3.7
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 17 for all pins with fast pads (pad_fc), and
Table 18 for all pins with medium (pad_msr_hv), slow (pad_ssr_hv) and multi-voltage (pad_multv_hv) pads.
3.8
DC electrical specifications
Table 17. 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 18. 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
Table 19. DC electrical specifications1
Symbol
C
Parameter
Conditions
Value2
Unit
min
typ
max
VDD
SR
Core supply voltage
1.14
1.32
V
VDDE
SR
I/O supply voltage
1.62
3.63
V
VDDEH
SR
I/O supply voltage
3.0
5.25
V
VRC33
SR
3.3 V regulated
voltage4
—3.0
3.6
V
VDDA
SR
Analog supply
voltage
—4.755
—5.25
V
VINDC
SR
Analog input
voltage6
—VSSA–0.3
VDDA+0.3
V
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