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MC9S12E64CFUE Datasheet, PDF (595/606 Pages) Freescale Semiconductor, Inc – Microcontrollers | |||
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Appendix A Electrical Characteristics
A.7 DAC Characteristics
This section describes the characteristics of the digital to analog converter.
A.7.1 DAC Operating Characteristics
Table A-24. DAC Electrical Characteristics (Operating)
Num C
Characteristic
1 D DAC Supply
2 D DAC Supply Current
D
3 D Reference Potential
D
4 D Reference Supply Current
5 D Input Current, Channel Off1
6 D Operating Temperature Range
Condition Symbol
Min
Typ
VDDA
3.135
â
Running
IDDArun
â
â
Stop
IDDstop
â
â
(low power)
Low
VSSA
VSSA
â
High
VREF
VDDA/2
â
VREF to VSSA
IREF
â
â
IOFF
â200
â
T
â40
â
Max
5.5
3.5
1.0
VSSA
VDDA
400
1
125
Unit
V
mA
mA
V
V
mA
µA
°C
Num
1
2
3
4
5
6
7
Table A-25. DAC Timing/Performance Characteristics
C
Parameters
D DAC Operating Frequency
D Integral Non-Linearity
D Differential Non-Linearity
D Resolution
D Settling Time
P Absolute Accuracy
D Offset Error
Symbol
Min
fBUS
â
INL
â
DNL
â
RES
â
TS
5
ABSACC
â1
ERR
â
Typ
â
0.25
0.10
â
â
â
+/-2.5
Max
Unit
25
MHz
â
Count
â
Count
8
Bit
10
µs
1
Count
â
mV
A.8 External Bus Timing
A timing diagram of the external multiplexed-bus is illustrated in Figure A-9 with the actual timing values
shown on table Table A-26 and Table A-27. All major bus signals are included in the diagram. While both
a data write and data read cycle are shown, only one or the other would occur on a particular bus cycle.
The expanded bus timings are highly dependent on the load conditions. The timing parameters shown
assume a balanced load across all outputs.
MC9S12E128 Data Sheet, Rev. 1.07
Freescale Semiconductor
595
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