mc44251 Freescale Semiconductor, Inc, mc44251 Datasheet - Page 2

• Manufacturer Part Number: mc44251
• Description: Triple 8-bit Video Three-state Outputs
• Manufacturer: Freescale Semiconductor, Inc

ABSOLUTE MAXIMUM RATINGS
NOTE: Maximum Ratings are those values beyond which damage to the device may occur.
ELECTRICAL CHARACTERISTICS
OPERATING RANGES
A/D CONVERTER
MC44251
2
V DD(A) , V DD(D) ,
V DD(A) , V DD(D) ,
Symbol
V DD(R)
Symbol
V DD(R)
Symbol
Functional operation should be restricted to the Recommended Operating
Conditions.
V range
T stg
I DD(A)
I DD(R)
I DD(D)
I out
V in
V max
E gain
I in
V min
Gain
DNL
E off
C in
INL
T A
G0
G1
G2
G3
CS
G4
G5
G6
G7
B7
R0
7
8
9
10
11
12
13
14
15
16
17
DC Supply Voltage (referenced to
V SS )
Input Voltage, All Pins
DC Input Current per Pin
DC Output Current per Pin
Storage Temperature Range
Power Supply Voltage
Analog Supply Current
Reference Supply Current
Digital Supply Current
Operating Ambient Temperature Range
Input Capacitance
See Figure 11
See Figure 11
See Figure 11
See Figure 11 (Note 1)
Differential Nonlinearity (Note 1)
Integral Nonlinearity (Note 1)
Gain Difference (Note 2)
Offset Difference (Notes 1, 2)
Characteristic
PLCC
(Voltages Referenced to V SS ) (V DD(R) = V DD(A) = V DD(D) ; R bias (Pin 33) = 5 k to ground)
Characteristic
Characteristic
39
38
37
36
35
34
33
32
31
30
29
I bias
V SS(R)
B in
R BOT
G in
R MID
R in
R TOP
V DD(R)
VTN
HZ
PIN ASSIGNMENTS
– 0.5 to V DD + 0.5
– 0.5 to + 6.0
– 65 to + 150
Value
20
25
G0
G1
G2
G3
CS
G4
G5
G6
G7
B7
R0
Unit
mA
mA
V
V
C
1
2
3
4
5
6
7
8
9
10
11
guard against damage due to high static volt-
ages or electric fields. However, precautions
must be taken to avoid applications of any
voltage higher than maximum rated voltages to
this high–impedance circuit. For proper opera-
tion, V in and V out should be constrained to the
range V SS
appropriate logic voltage level (e.g., either V SS
or V DD ). Unused outputs must be left open.
This device contains protection circuitry to
Unused inputs must always be tied to an
0.89 x V DD
0.57 x V DD
0.3 x V DD
QFP
– 40
0.95
Min
Min
4.5
—
—
—
—
—
—
—
—
(V in or V out )
0.36 x V DD
0.93 x V DD
0.59 x V DD
33
32
31
30
29
28
27
26
25
24
23
+ 85
Max
Max
5.5
1.0
55
28
60
5
1.0
2.0
1.0
3.0
I bias
V SS(R)
B in
R BOT
G in
R MID
R in
R TOP
V DD(R)
VTN
HZ
V DD .
MOTOROLA
Unit
Unit
LSB
LSB
LSB
LSB
mA
mA
mA
pF
%
V
V
V
V
C