mc44251 Freescale Semiconductor, Inc, mc44251 Datasheet - Page 7

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

MOTOROLA
V clamp
I source
V 0
CLAMP
V clamp
LEVEL
I sink
V in
HZ
HZ
I
C
MC44251
I
N PERIODS
Figure 3. Clamp Network Timing Diagrams
HZ
t L
Figure 3b. Power Up
Figure 3a. Operation
V =
1
C
I t L
t L
V 0 – V clamp =
I = I sink IF V 0 > V clamp
I = I source IF V 0 < V clamp
V
N
C
I t L
MC44251
7