mc9s12vr48 Freescale Semiconductor, Inc, mc9s12vr48 Datasheet - Page 555

• Manufacturer Part Number: mc9s12vr48
• Description: S12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Appendix L
XOSCLCP Electrical Specifications
Freescale Semiconductor
1
Conditions are shown in
Num C
2
3a
3b
3c
These values apply for carefully designed PCB layouts with capacitors that match the crystal/resonator requirements.
Needs to be measured at room temperature on the application board using a probe with very low (<=5pF) input
1
2
4
5
6
7
8
capacitance.
C Nominal crystal or resonator frequency
P Startup Current
C Oscillator start-up time (4MHz)
C Oscillator start-up time (8MHz)
C Oscillator start-up time (16MHz)
P Clock Monitor Failure Assert Frequency
D Input Capacitance (EXTAL, XTAL pins)
C EXTAL Pin Input Hysteresis
C
D EXTAL Pin oscillation required amplitude
EXTAL Pin oscillation amplitude (loop
controlled Pierce)
Table A-4
Rating
MC9S12VR Family Reference Manual, Rev. 2.2
Preliminary - Subject to Change Without Notice
Table L-1. XOSCLCP Characteristics
unless otherwise noted
1
1
1
2
V
V
V
Symbol
t
t
t
PP,EXTAL
PP,EXTAL
HYS,EXT
UPOSC
UPOSC
UPOSC
f
f
i
CMFA
OSC
C
OSC
AL
IN
Min
100
200
4.0
0.8
—
—
—
—
—
Typ
450
120
1.6
0.9
—
2
1
7
1200
Max
1.5
16
10
—
—
8
5
MHz
Unit
KHz
mV
ms
ms
ms
µA
pF
V
V
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