Table 15. 12-bit ADC characteristics (V
REFH
= V
DDA
, V
REFL
= V
SSA
) (continued)
Characteristic
Conditions
C
Symbol
Min
Typ
Max
Unit
8-bit mode
T
—
±0.5
±1.0
Quantization error
≤12 bit modes
D
E
Q
—
—
±0.5
LSB
Input leakage error
all modes
D
E
IL
I
In
* R
AS
mV
Temp sensor slope
-40 °C–25 °C
D
m
—
3.266
—
mV/°C
25 °C–125 °C
—
3.638
—
Temp sensor voltage 25 °C
D
V
TEMP25
—
1.396
—
V
1. Typical values assume V
DDA
= 5.0 V, Temp = 25 °C, f
ADCK
=1.0 MHz unless otherwise stated. Typical values are for
reference only and are not tested in production.
2. Includes quantization
3. 1 LSB = (V
REFH
- V
REFL
)/2
N
4. Monotonicity and no-missing-codes guaranteed in 10-bit and 8-bit modes
5. V
ADIN
= V
SSA
6. V
ADIN
= V
DDA
7. I
In
= leakage current (refer to DC characteristics)
6.4.2 Analog comparator (ACMP) electricals
Table 16. Comparator electrical specifications
C
Characteristic
Symbol
Min
Typical
Max
Unit
D
Supply voltage
V
DDA
2.7
—
5.5
V
T
Supply current (Operation mode)
I
DDA
—
10
20
µA
D
Analog input voltage
V
AIN
V
SS
- 0.3
—
V
DDA
V
P
Analog input offset voltage
V
AIO
—
—
40
mV
C
Analog comparator hysteresis (HYST=0)
V
H
—
15
20
mV
C
Analog comparator hysteresis (HYST=1)
V
H
—
20
30
mV
T
Supply current (Off mode)
I
DDAOFF
—
60
—
nA
C
Propagation Delay
t
D
—
0.4
1
µs
6.5 Communication interfaces
6.5.1 SPI switching specifications
The serial peripheral interface (SPI) provides a synchronous serial bus with master and
slave operations. Many of the transfer attributes are programmable. The following tables
provide timing characteristics for classic SPI timing modes. See the SPI chapter of the
chip's reference manual for information about the modified transfer formats used for
Peripheral operating requirements and behaviors
KE02 Sub-Family Data Sheet, Rev4, 10/2014.
Freescale Semiconductor, Inc.
27
