S9S08SC4E0MTG Datasheet, PDF (11/31 Pages) Freescale Semiconductor, Inc – MC9S08SC4 8-Bit Microcontroller Data Sheet

Chapter 3 Electrical Characteristics
Table 3-6. DC Characteristics (continued)
Num C
Characteristic
Symbol
D DC injection current ^{4, 5, 6, 7}
Single pin limit
15
I_IC
Total MCU limit, includes
sum of all stressed pins
16 D Input Capacitance, all pins
C_In
17 D RAM retention voltage
18 D POR re-arm voltage⁸
19 D POR re-arm time⁹
V_RAM
V_POR
t_POR
P Low-voltage detection threshold —
20
high range
V_DD falling
V_DD rising
V_LVD1
Low-voltage warning threshold —
21 ^{P high range 1}
V_DD falling
V_DD rising
V_LVW3
Low-voltage warning threshold —
22 ^{P high range 0}
V_DD falling
V_DD rising
V_LVW2
23
T Low-voltage inhibit reset/recover
hysteresis
V_hys
24 P ^{Bandgap Voltage Reference10}
V_BG
Condition
V_IN > V_DD
V_IN < V_SS,
V_IN > V_DD
V_IN < V_SS,
—
—
—
—
—
—
—
—
—
Min
Typ¹
Max Unit
0
—
2
mA
0
—
–0.2
mA
0
—
25
mA
0
—
–5
mA
—
—
8
pF
—
0.6
1.0
V
0.9
1.4
2.0
V
10
—
—
μs
3.85
4.0
4.15
V
3.95
4.1
4.25
4.45
4.6
4.75
V
4.55
4.7
4.85
4.15
4.3
4.45
V
4.25
4.4
4.55
—
100
—
mV
1.17
1.20
1.22
V
1 _{Typical values are measured at 25°C. Characterized, not tested.}
2 _{When a pin interrupt is configured to detect rising edges, pull-down resistors are used in place of pull-up resistors.}
3 _{The specified resistor value is the actual value internal to the device. The pull-up value may measure higher when measured}
externally on the pin.
4 _{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).
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 _{The RESET pin does not have a clamp diode to VDD. Do not drive this pin above VDD.}
8 _{Maximum is highest voltage that POR will occur.}
9 _{Simulated, not tested}
10 _{Factory trimmed at VDD = 5.0 V, Temp = 25°C}
MC9S08SC4 MCU Series Data Sheet, Rev. 4
Freescale Semiconductor
11