z86228 ZiLOG Semiconductor, z86228 Datasheet - Page 6

• Manufacturer Part Number: z86228
• Description: Line Closed Caption Controller L21c
• Manufacturer: ZiLOG Semiconductor

AC CHARACTERISTICS
T
6
SDA
SEN
SCK
A
= 0 C to + 70 C; V
Symbol
T
T
T
T
T
T
T
T
T
T
HI-Z
OUT
OFF
CKD
CKL
CKH
DSU
DH
ENI
ASU
AH
Tout
Tckd
Description
Output enable time, ENA rising edge to Data Out
Output disable time, CLK or ENA falling edge to Data Hi-Z
Data read time, ENA rising edge to CLK low
CLK low time
CLK high time
Data set-up time
Data hold time
ENA low time
A0 set-up time
A0 hold time
SS-OUT
CC
Toff
= +4.75V to +5.25V
HI-Z
Tckl
Tdsu
Serial Mode Timing Diagram
P R E L I M I N A R Y
D0-IN
Tckh
Tdh
D(1-7)-IN
Tasu
A0-IN
Tah
Tenl
Min.
HI-Z
200
200
200
100
100
200
100
100
Tout
Max.
200
100
SS-OUT
Toff
Units
CPS DC-4243-00
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
HI-Z
Z86228