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  ON Semiconductor Electronic Components Datasheet  

MC100E446 Datasheet

4-BIT PARALLEL/ SERIAL CONVERTER

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MC10E446, MC100E446
5V ECL 4-Bit Parallel/Serial
Converter
Description
The MC10E/100E446 is an integrated 4-bit parallel to serial data
converter. The device is designed to operate for NRZ data rates of up to
1.3 Gb/s. The chip generates a divide by 4 and a divide by 8 clock for
both 4-bit conversion and a two chip 8-bit conversion function. The
conversion sequence was chosen to convert the parallel data into a serial
stream from bit D0 to D3. A serial input is provided to cascade two
E446 devices for 8 bit conversion applications. Note that the serial
output data clocks off of the negative input clock transition.
The SYNC input will asynchronously reset the internal clock
circuitry. This pin allows the user to reset the internal clock conversion
unit and thus select the start of the conversion process.
The MODE input is used to select the conversion mode of the device.
With the MODE input LOW, or open, the device will function as a 4-bit
converter. When the mode input is driven HIGH the internal load clock
will change on every eighth clock cycle thus allowing for an 8-bit
conversion scheme using two E446’s. When cascaded in an 8-bit
conversion scheme the devices will not operate at the 1.3 Gb/s data rate
of a single device. Refer to the applications section of this data sheet for
more information on cascading the E446.
The VBB pin, an internally generated voltage supply, is available to
this device only. For single-ended input conditions, the unused
differential input is connected to VBB as a switching reference voltage.
VBB may also rebias AC coupled inputs. When used, decouple VBB and
VCC via a 0.01 mF capacitor and limit current sourcing or sinking to
0.5 mA. When not used, VBB should be left open.
The 100 Series contains temperature compensation.
Features
http://onsemi.com
PLCC28
FN SUFFIX
CASE 776
MARKING DIAGRAM*
1 28
MCxxxE446FNG
AWLYYWW
xxx = 10 or 100
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = PbFree Package
*For additional marking information, refer to
Application Note AND8002/D.
On Chip Clock ÷4 and ÷8
1.5 Gb/s Typical Data Rate Capability
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
Differential Clock and Serial Inputs
VBB Output for Single-ended Input Applications
Asynchronous Data Synchronization
Mode Select to Expand to 8 Bits
PECL Mode Operating Range: VCC = 4.2 V to 5.7 V
with VEE = 0 V
NECL Mode Operating Range: VCC = 0 V
with VEE = 4.2 V to 5.7 V
Internal Input 50 kW Pulldown Resistors
ESD Protection: Human Body Model; > 2 kV,
Machine Model; > 100 V
Meets or Exceeds JEDEC Spec EIA/JESD78 IC
Latchup Test
Flammability Rating: UL 94 V0 @ 0.125 in,
Oxygen Index: 28 to 34
Transistor Count = 525 devices
Moisture Sensitivity Level: Pb = 1; PbFree = 3
For Additional Information, see Application Note
AND8003/D
PbFree Packages are Available*
*For additional information on our PbFree strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2006
November, 2006 Rev. 8
1
Publication Order Number:
MC10E446/D


  ON Semiconductor Electronic Components Datasheet  

MC100E446 Datasheet

4-BIT PARALLEL/ SERIAL CONVERTER

No Preview Available !

MC10E446, MC100E446
D0 D1 D2 D3 MODE NC NC
25
CLK 26
CLK 27
VBB 28
VEE 1
SIN 2
SIN 3
SYNC 4
5
24 23 22 21 20 19
18
17
MC10E446/MC100E446
16
15
14
13
12
6 7 8 9 10 11
NC
NC
VCC
SOUT
SOUT
VCCO
NC
VCCO CL/8 CL/8 VCCO CL/4 CL/4 VCCO
* All VCC and VCCO pins are tied together on the die.
Warning: All VCC, VCCO, and VEE pins must be externally
connected to Power Supply to guarantee proper operation.
Figure 1. Pinout: PLCC28 (Top View)
Table 1. PIN DESCRIPTION
PIN FUNCTION
SIN
D0 D3
SOUT, SOUT
CLK, CLK
CL/4, CL/4
CL/8, CL/8
MODE
SYNC
VBB
VCC, VCCO
VEE
NC
ECL Differential Serial Data Input
ECL Parallel Data Inputs
ECL Differential Serial Data Output
ECL Differential Clock Inputs
ECL Differential ÷4 Clock Output
ECL Differential ÷8 Clock Output
Conversion Mode 4-Bit/8-Bit
ECL Conversion Synchronizing Input
Reference Voltage Output
Positive Supply
Negative Supply
No Connect
http://onsemi.com
2


Part Number MC100E446
Description 4-BIT PARALLEL/ SERIAL CONVERTER
Maker ON Semiconductor
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