
MC56F8006/MC56F8002 Digital Signal Controller, Rev. 4
Specifications
Freescale Semiconductor
48
Low-voltage detection threshold —
high range7
VLVDH
8
VDD falling
2.31
2.34
2.36
V
–40
C ~
105
C
2.16
2.3
2.48
—40
C ~
+125
C
VDD rising
2.38
2.44
2.47
–40
C ~
105
C
2.23
2.39
2.49
—40
C ~
+125
C
Low-voltage detection threshold —
VLVDL
VDD falling
1.8
1.84
1.87
V
–40
C ~
105
C
N/A
—40
C ~
+125
C
VDD rising
1.88
1.93
1.96
–40
C ~
105
C
Low-voltage warning threshold
VLVW
9
VDD falling
2.58
2.62
2.71
V
–40
C ~
105
C
2.5
2.61
2.74
—40
C ~
+125
C
VDD rising
2.59
2.67
2.74
–40
C ~
105
C
2.51
2.66
2.79
—40
C ~
+125
C
Low-voltage inhibit reset/recover
Vhys
—
50
—
mV
—40
C ~
+105
C
Bandgap Voltage Reference10
VBG
1.15
1.17
1.18
V
–40
C ~
105
C
1.14
—40
C ~
+125
C
1 Typical values are measured at 25
C. Characterized, not tested
2 As the supply voltage rises, the LVD circuit holds the MCU in reset until the supply has risen above V
LVDL. If the system clock
frequency < 16 MHz, VDD can be 1.7 V to 3.6 V.
3 All functional non-supply pins are internally clamped to V
SS and VDD.
4 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.
5 Power supply must maintain regulation within operating V
DD 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 shunts current greater than maximum injection current.
This is the greatest risk when the MCU is not consuming power. Examples are: if no system clock is present or if clock rate is low
(which would reduce overall power consumption).
6 Maximum is highest voltage that POR is guaranteed.
7 Low voltage detection and warning limits measured at 32 MHz bus frequency. This characteristic is not applicable to devices with
a temperature range from –40
C to 125 C. Please see the PMC chapter in the reference manual for details.
Table 21. DC Characteristics (continued)
Characteristic
Symbol
Condition
Min
Typ1
Max
Unit
Ambient
temperature
operating
range