mc100ep446 ON Semiconductor, mc100ep446 Datasheet - Page 15

• Manufacturer Part Number: mc100ep446
• Description: 3.3v/5v 8??bit Cmos/ecl/ttl Data Input Parallel/serial Converter
• Manufacturer: ON Semiconductor

edge of SYNC ¬, followed by the falling edge CLK ­, on the second rising edge of CLK ® (Figures 11 and 12).
CKSEL
SYNC
SOUT
PCLK
(Asynchronous RESET)
For CKSEL HIGH, as shown in the timing diagrams below, the device will start to latch the parallel input data after the falling
CLK
D0
D1
D2
D3
D4
D5
D6
D7
SYNC
Figure 11. Timing Diagram 1:8 Parallel to Serial Conversion with CKSEL HIGH and SYNC
(Synchronous ENABLE)
SYNC
Data Latched
Á Â
À
Figure 12. Synchronous Release of SYNC for CKSEL HIGH
1
D0−1
D1−1
D2−1
D3−1
D4−1
D5−1
D6−1
D7−1
Number of Clock Cycles from Data Latch to SOUT
2
3
4
SYNC
CLK
5
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6
7
Data Latched
15
8
À
Á
9
D0−2
D1−2
D2−2
D3−2
D4−2
D5−2
D6−2
D7−2
10
Â
11
12 13 14
Data Latched
D0−3
D1−3
D2−3
D3−3
D4−3
D5−3
D6−3
D7−3
D0−4
D1−4
D2−4
D3−4
D4−4
D5−4
D6−4
D7−4