MC9S08SE8 Datasheet, PDF (11/38 Pages) Freescale Semiconductor, Inc – 8-Bit HCS08 Central Processor Unit

Electrical Characteristics
Table 7. DC Characteristics (continued)
Num C
Parameter
Symbol Min
Typical¹
Max Unit
Low-voltage inhibit reset/recover hysteresis
25 T
5 V V_hys
—
100
—
mV
3V
—
60
—
26 P Bandgap voltage reference⁹
V_BG
1.18
1.20
1.21
V
1 _{Typical values are measured at 25 °C. Characterized, not tested.}
2 _{Measured with VIn = VDD or VSS.}
3 _{Measured with VIn = VSS.}
4 _{Measured with VIn = VDD.}
5 _{All functional non-supply pins are internally clamped to VSS and VDD.}
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 (V_In > V_DD) is greater than I_DD, the injection current may flow out of
V_DD and could result in external power supply going out of regulation. Ensure external V_DD 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 _{Factory trimmed at VDD = 5.0 V, Temp = 25 °C.}
MC9S08SE8 Series MCU Data Sheet, Rev. 3
Freescale Semiconductor
11