mc68hc908jl16 Freescale Semiconductor, Inc, mc68hc908jl16 Datasheet - Page 209

• Manufacturer Part Number: mc68hc908jl16
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

17.9 3-V Control Timing
Freescale Semiconductor
Low-voltage inhibit, trip falling voltage
Low-voltage inhibit, trip rising voltage
Low-voltage inhibit reset/recovery hysteresis
Internal operating frequency
RST input pulse width low
IRQ input pulse width low
TIM2 external clock input
1. V
2. Typical values reflect average measurements at midpoint of voltage range, 25 C only.
3. Run (operating) I
4. Wait I
5. Stop I
6. Maximum is highest voltage that POR is guaranteed.
7. If minimum V
8. R
1. V
2. Some modules may require a minimum frequency greater than dc for proper operation; see appropriate table for this infor-
3. Minimum pulse width reset is guaranteed to be recognized. It is possible for a smaller pulse width to cause a reset.
Less than 100 pF on all outputs. C
run I
100 pF on all outputs. C
V
noted.
mation.
DD
DD
DD
PU
= 2.7 to 3.3 Vdc, V
DD
= 2.7 to 3.3 Vdc, V
is measured at V
is reached.
DD
DD
. Measured with all modules enabled.
measured using external square wave clock source (f
measured with OSC1 grounded; no port pins sourcing current.
DD
is not reached before the internal POR reset is released, RST must be driven low externally until minimum
DD
Characteristic
measured using external square wave clock source (f
DD
(3)
Characteristic
(3)
SS
SS
L
= 5.0V.
(2)
= 20 pF on OSC2. All ports configured as inputs. OSC2 capacitance linearly affects wait I
= 0 Vdc, T
= 0 Vdc, T
Table 17-7. DC Electrical Characteristics (3V)
(1)
L
A
A
= 20 pF on OSC2. All ports configured as inputs. OSC2 capacitance linearly affects
(1)
= T
= T
Table 17-8. Control Timing (3V)
MC68HC908JL16 Data Sheet, Rev. 1.1
L
L
to T
to T
H
H
; timing shown with respect to 20% V
, unless otherwise noted.
Symbol
V
OP
V
V
TRIPR
TRIPF
HYS
= 4MHz). All inputs 0.2V from rail. No dc loads. Less than
Symbol
f
T2CLK
OP
t
f
t
IRL
OP
IIL
= 4MHz). All inputs 0.2V from rail. No dc loads.
2.475
2.40
Min
—
DD
Min
1.5
1.5
—
—
and 70% V
Typ
2.625
2.55
75
(2)
Max
DD
—
—
4
2
3-V Control Timing
, unless otherwise
2.775
Max
2.70
—
MHz
MHz
Unit
DD
s
s
Unit
mV
.
V
V
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