mc100ep446 ON Semiconductor, mc100ep446 Datasheet - Page 3

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

*The rising edge of SYNC will asynchronously reset the internal circuitry. The falling edge of the SYNC followed by the falling edge of CLK initiates
*For TTL Mode, if no external voltage can be provided, the reference
Table 2. TRUTH TABLE
Table 3. INPUT VOLTAGE LEVEL SELECTION TABLE
the conversion process synchronously on the next rising edge of CLK.
CKSEL
CKEN
SYNC
voltage can be provided by connecting the appropriate resistor
between V
Pin
Input Function
CMOS Mode
TTL Mode*
ECL Mode
CF
Synchronously Disables Normal Parallel to Serial
Conversion
Asynchronously Resets Internal Flip−Flops*
and V
S
S
CLK: S
CLK
OUT
OUT
: PCLK = 8:1
EE
OUT
pins.
= 1:1
Connect To V
1.5 V $ 100 mV
HIGH
No Connect
V
EF
Pin
CF
Pin
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3
Function
Synchronously Enables Normal Parallel to Serial Conversion
Synchronous Enable
S
S
CLK: S
Table 4. DATA INPUT OPERATING VOLTAGE TABLE
CLK
OUT
OUT
Power Supply
Power Supply
: PCLK = 8:1
(V
OUT
PECL
NECL
CC
3.3 V
5.0 V
= 1:2
,V
EE
)
CMOS
N/A
Resistor Value 10% (Tolerance)
LOW
p
Data Inputs (D [0:7])
TTL
N/A
p
1.5 kW
500 W
PECL
N/A
p
NECL
N/A
p