MC68HC912DG128 Datasheet, PDF (406/452 Pages) Motorola, Inc – Microcontrollers

Freescale Semiconductor, Inc.
Electrical Specifications
Table 19-16. CGM Characteristics
5.0 Volts +/- 10%
Characteristic
Symbol
Min.
PLL reference frequency, crystal oscillator range
f_REF
0.5
Bus frequency
f_BUS
0.004
VCO range
f_VCO
2.5
VCO Limp-Home frequency
f_VCOMIN
0.5
Lock Detector transition from Acquisition to
Tracking mode⁽¹⁾
∆_trk
3%
Lock Detection
∆_Lock
0%
Un-Lock Detection
∆_unl
0.5%
Lock Detector transition from Tracking to
Acquisition mode
∆_unt
6%
Minimum leakage resistance on crystal oscillator
pins
r_leak
1
Typ.
Max.
8
8
8
2.5
4%
1.5%
2.5%
8%
Unit
MHz
MHz
MHz
MHz
—
—
—
—
MΩ
PLL Stabilization delay⁽²⁾
PLL Total Stabilization Delay⁽³⁾
t_stab
3
ns
PLLON Acquisition mode stabilization delay.⁽³⁾
t_acq
1
ns
PLLON tracking mode stabilization delay.⁽³⁾
t_al
2
ns
1. AUTO bit set
2. PLL stabilization delay is highly dependent on operational requirement and external component values (e.e. crystal, XFC
filter component values|). Note (3) shows typical delay values for a typical configuration. Appropriate XFC filter values
should be chosen based on operational requirement of system.
3. f_REF = 4MHz, f_BUS = 8MHz (REFDV = #$00, SYNR = #$01), XFC:Cs = 33nF, Cp = 3.3nF, Rs = 2.7KΩ.
Table 19-17. Key Wake-up
Characteristic
STOP Key Wake-Up Filter time
Key Wake-Up Single Pulse Time Interval
Symbol
t_KWSTP
t_KWSP
Min.
2
20
Max.
10
Unit
µs
µs
Table 19-18. msCAN12 Wake-up Time from Sleep Mode
Wake-Up time
V_DD = 5.0V dc ± 10%, V_SS = 0 Vdc, T_A = T_L to T_H, unless otherwise noted
Characteristic
Symbol
Min.
Max.
t_wup
2
5
Unit
µs
Technical Data
406
MC68HC912DG128 — Rev 3.0
Electrical Specifications
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA