mc44251 Freescale Semiconductor, Inc, mc44251 Datasheet - Page 3

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

CLOCK INPUT
HZ AND VTN INPUTS
CHIP SELECT INPUT
CLAMPING NETWORK
RESISTIVE REFERENCE NETWORK
MODE INPUT
MOTOROLA
n
Symbol
Symbol
Symbol
Symbol
Symbol
Symbol
I source
V HYS
RATE
Z TOP
Z BOT
V damp
Z MID
D ICL
I sink
V IH
t wH
V IH
V IH
V IH
V IL
t wL
V IL
V IL
V IL
V IZ
I IH
I IH
I IN
I IH
I IL
I IL
I IL
I IZ
t H
t r
t f
Clock Input High Level
Clock Input Low Level
Low Level Input Current
High Level Input Current
Conversion Rate
Clock Low Duration, Figure 1
Clock High Duration, Figure 1
Clock Rise Time (10% to 90%), Figure 1
Clock Fall Time (10% to 90%), Figure 1
HZ and VTN Input Turn–On Threshold Voltage
HZ and VTN Input Turn–Off Threshold Voltage
Hysteresis Voltage
Low Level Input Current
High Level Input Current
HZ High Time, Figure 3
Input High Level
Clamping Source Current
Input Leakage Current
Clamping Sink Current
Clamping Source Current
Clamping Current Difference (Note 2)
Clamping Levels (Max. Deviation Compared to Table 1)
R TOP Output Impedance
R BOT Output Impedance
R MID Output Impedance
Logical “0” Level
Logical “1” Level
Logical “Open” Level
Input Current at “0” Level
Input Current at “1” Level
Input Current at “Open” Level
(Measured on R,G,B Inputs)
Characteristic
Characteristic
Characteristic
Characteristic
Characteristic
Characteristic
0.56 x V DD
0.11 x V DD
– 5.0
27.5
27.5
Min
Min
Min
Min
Min
Min
4.2
3.5
2.0
4.2
28
70
70
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
3
0
2
0.29 x V DD
0.17 x V DD
V DD(D)
– 2.0
Max
Max
Max
Max
Max
Max
130
130
0.8
1.5
5.0
0.5
0.8
2.8
—
18
—
—
15
15
—
—
—
48
2.0
2.0
2.0
2.0
2.0
1.5
50
80
50
MC44251
ms/s
Unit
Unit
Unit
Unit
LSB
Unit
Unit
ns
ns
ns
ns
ns
V
V
V
V
V
V
V
V
V
V
A
A
A
A
A
A
A
A
A
A
A
3