MC9S12C128V1 Datasheet, PDF (665/690 Pages) Freescale Semiconductor, Inc – MC9S12C Family MC9S12GC Family Reference Manual

Appendix A Electrical Characteristics
Table A-16. Oscillator Characteristics
Conditions are shown in Table A-4 unless otherwise noted
Num C
Rating
Symbol
Min
1a
C Crystal oscillator range (Colpitts)
1b
C Crystal oscillator range (Pierce) ^{(1) 4}
f_OSC
0.5
f_OSC
0.5
2
P Startup Current
i_OSC
100
3
C Oscillator start-up time (Colpitts)
t_UPOSC
—
4
D Clock Quality check time-out
t_CQOUT
0.45
5
P Clock Monitor Failure Assert Frequency
6
P External square wave input frequency ⁽⁴⁾
f_CMFA
50
f_EXT
0.5
7
D External square wave pulse width low
t_EXTL
9.5
8
D External square wave pulse width high
t_EXTH
9.5
9
D External square wave rise time
t_EXTR
—
10
D External square wave fall time
t_EXTF
—
11
D Input Capacitance (EXTAL, XTAL pins)
C_IN
—
12
C
DC Operating Bias in Colpitts Configuration
on EXTAL Pin
V_DCBIAS
—
13
P ^{EXTAL Pin Input High Voltage4}
T EXTAL Pin Input High Voltage⁴
14
P ^{EXTAL Pin Input Low Voltage4}
V_IH,EXTAL
V_IH,EXTAL
V_Il,EXTAL
0.75*
V_DDPLL
—
—
T EXTAL Pin Input Low Voltage⁴
V_Il,EXTAL V_SSPLL-0.3
15
C EXTAL Pin Input Hysteresis⁴
V_HYS,EXTAL
—
1. Depending on the crystal a damping series resistor might be necessary
2. f_osc = 4MHz, C = 22pF.
3. Maximum value is for extreme cases using high Q, low frequency crystals
4. Only valid if Pierce Oscillator/external clock selected (XCLKS = 0 during reset)
Typ
Max
Unit
—
16
MHz
—
40
MHz
—
—
µA
8⁽²⁾
100⁽³⁾
ms
—
2.5
s
100
200
KHz
—
50
MHz
—
—
ns
—
—
ns
—
1
ns
—
1
ns
7
—
pF
1.1
—
V
—
—
V
—
V_DDPLL+0.3
V
—
0.25*
V_DDPLL
V
—
—
V
250
—
mV
Freescale Semiconductor
MC9S12C-Family / MC9S12GC-Family
665
Rev 01.24