Electrical Characteristics 
MC9S12G Family Reference Manual Rev.1.27
1224 NXP Semiconductors
Table A-48. Voltage Regulator Characteristics (Junction Temperature From +150C To +160C)
Num C Characteristic Symbol Min Typical Max Unit
1
M Input Voltages
V
VDDR,A
3.13 — 5.5 V
2
M
V
DDA
 Low Voltage Interrupt Assert Level 
1
V
DDA
 Low Voltage Interrupt Deassert Level
1
Monitors VDDA, active only in Full Performance Mode. Indicates I/O & ADC performance degradation due to low supply 
voltage.
V
LVIA
V
LVID
4.04
4.19
4.23
4.38
4.40
4.49
V
V
3
M
V
DDX
 Low Voltage Reset Deassert 
2
 
3
 
4
2
Device functionality is guaranteed on power down to the LVR assert level 
3
Monitors VDDX, active only in Full Performance Mode. MCU is monitored by the POR in RPM (see Figure A-6) 
4
V
LVRXA
 < V
LVRXD
. The hysteresis is unspecified and untested.
V
LVRXD
—3.053.13V
4
M
V
DDX
 Low Voltage Reset Assert 
2
 
3
 
4
V
LVRXA
2.95 3.02 — V
5
T
CPMU ACLK frequency
(CPMUACLKTR[5:0] = %000000)
f
ACLK
—10—KHz
6
C
Trimmed ACLK internal clock
5
 f / f
nominal 
5
The ACLK Trimming CPMUACLKTR[5:0] bits must be set so that f
ACLK
=10KHz.
df
ACLK
- 5% — + 5% —
7
D
The first period after enabling the counter 
by APIFE might be reduced by ACLK start 
up delay
t
sdel
— — 100 us
8
D
The first period after enabling the COP 
might be reduced by ACLK start up delay
t
sdel
— — 100 us
9
M
Output Voltage Flash
Full Performance Mode
Reduced Power Mode (MCU STOP 
mode)
V
DDF
2.6
1.1
2.82
1.6
2.9
1.98
V
V
10
C
V
DDF
 Voltage Distribution
over input voltage V
DDA
6
4.5V  V
DDA
  5.5V, T
A
 = 27
o
C
compared to V
DDA
 = 5.0V
6
VDDR  3.13V
VDDF
-5 0 5 mV
11
C
V
DDF
 Voltage Distribution
over ambient temperature T
A
V
DDA
  5V, -40C  T
A
  125C
compared to V
DDF
 production test value 
(see A.16, “ADC Conversion Result 
Reference”)
VDDF
-20 - +20 mV