mcf51em256 Freescale Semiconductor, Inc, mcf51em256 Datasheet - Page 27

• Manufacturer Part Number: mcf51em256
• Description: Microcontrollers Covers Mcf51em256 Mcf51em128
• Manufacturer: Freescale Semiconductor, Inc

2.7
2.8
These specs all assume seperate V
differential inputs. Spec’s should be de-rated for V
Freescale Semiconductor
Num
1
2
3
4
10
11
12
13
14
N
1
2
3
4
5
6
7
8
9
Supply
voltage
Ground
voltage
Ref
Voltage
High
Charact
eristic
Analog Comparator (PRACMP) Electricals
ADC Characteristics
— Supply voltage
— Analog input voltage
— Programmable reference generator input1
C
C
C
D
D
D
D
P
T
T
T
T
Supply current (active) (PRG enabled)
Supply current (active) (PRG disabled)
Supply current (ACMP and PRG all
disabled)
Analog input offset voltage
Analog comparator hysteresis
Analog input leakage current
Analog comparator initialization delay
Programmable reference generator input2
Programmable reference generator setup
delay
Programmable reference generator step
size
Programmable reference generator voltage
range
Absolute
Delta to V
Delta to V
MCF51EM256 Series ColdFire Microcontroller Data Sheet, Rev.3
Conditions
Characteristic
DD
SS
(V
(V
SS
DD
Table 12. PRACMP Electrical Specifications
Preliminary—Subject to Change Without Notice
Table 13. 16-bit ADC Operating Conditions
–V
–V
DDAD
SSA
DDA
)
)
2
2
supply for ADC and isolated pad segment for ADC supplies and
ΔV
ΔV
V
Symb
V
REFH
DDA
DDA
SSA
REFH
V
V
In2
Symbol
I
I
t
In1
V
DDACT1
DDACT2
I
V
PRGST
Vstep
I
t
VAIN
VAIO
DDDIS
–100
–100
ALKG
1.15
AINIT
Min
(V
prgout
1.8
PWR
V
(V
= V
H
DD25
DD
)
bg
)
condition.
V
Typ
V
—
DDA
0
0
SS
V
–0.25
Min
1.8
3.0
1.8
In
1
—
—
—
—
—
—
—
—
– 0.3
/32
V
Max
100
100
3.6
DDA
Typical
V
—
—
—
—
—
—
—
—
—
—
5
1
0
DD
Unit
mV
mV
V
V
Electrical Characteristics
Max
20.0
2.75
0.25
V
3.6
1.0
V
60
40
40
—
—
2
1
DD
in
Comment
Unit
LSB
mV
mV
μA
μA
nA
nA
μs
μs
V
V
V
V
V
27