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  ON Semiconductor Electronic Components Datasheet  

MC100E445 Datasheet

4-BIT SERIAL/ PARALLEL CONVERTER

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MC10E445, MC100E445
5V ECL 4-Bit Serial/Parallel
Converter
Description
The MC10/100E445 is an integrated 4-bit serial to parallel data
converter. The device is designed to operate for NRZ data rates of up to
2.0 Gb/s. The chip generates a divide by 4 and a divide by 8 clock for
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both 4-bit conversion and a two chip 8-bit conversion function. The
conversion sequence was chosen to convert the first serial bit to Q0, the
second to Q1 etc.
PLCC28
Two selectable serial inputs provide a loopback capability for testing
FN SUFFIX
purposes when the device is used in conjunction with the E446 parallel to
CASE 776
serial converter.
The start bit for conversion can be moved using the SYNC input. A
single pulse applied asynchronously for at least two input clock cycles
shifts the start bit for conversion from Qn to Qn1. For each additional
MARKING DIAGRAM*
shift required an additional pulse must be applied to the SYNC input.
1 28
Asserting the SYNC input will force the internal clock dividers to
“swallow” a clock pulse, effectively shifting a bit from the Qn to the Qn1
output (see Timing Diagram B).
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
MCxxxE445FNG
AWLYYWW
converter. When the mode input is driven HIGH the data on the output will
change on every eighth clock cycle thus allowing for an 8-bit conversion
scheme using two E445’s. When cascaded in an 8-bit conversion scheme
xxx = 10 or 100
the devices will not operate at the 2.0 Gb/s data rate of a single device.
Refer to the applications section of this data sheet for more information on
cascading the E445.
Upon power-up the internal flip-flops will attain a random state. To
synchronize multiple E445’s in a system the master reset must be asserted.
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = PbFree Package
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.
*For additional marking information, refer to
Application Note AND8002/D.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
Features
On-Chip Clock ÷4 and ÷8
ESD Protection: Human Body Model; > 2 kV,
Machine Model; > 100 V
2.0 Gb/s Data Rate Capability
Meets or Exceeds JEDEC Spec EIA/JESD78
Differential Clock and Serial Inputs
IC Latchup Test
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
Moisture Sensitivity Level: Pb = 1; PbFree = 3
For Additional Information, see Application Note
AND8003/D
Flammability Rating: UL 94 V0 @ 0.125 in,
Oxygen Index: 28 to 34
Transistor Count = 528 devices
PECL Mode Operating Range: VCC = 4.2 V to 5.7 V
with VEE = 0 V
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. 12
1
Publication Order Number:
MC10E445/D


  ON Semiconductor Electronic Components Datasheet  

MC100E445 Datasheet

4-BIT SERIAL/ PARALLEL CONVERTER

No Preview Available !

MC10E445, MC100E445
SINA SINA
MODE NC VCCO
25 24 23 22 21 20 19
SINB 26
18
SINB 27
17
SEL 28
VEE 1
CLK 2
MC10E445
16
15
14
CLK 3
13
VBB 4
12
5 6 7 8 9 10 11
SOUT
SOUT
VCC
Q0
Q1
VCCO
Q2
CL/8 CL/8 VCCO CL/4 CL/4 VCCO Q3
* All VCC and VCCO pins are tied together on the die.
Warning: All VCC, VCCO, and VEE pins must be externally con-
nected to Power Supply to guarantee proper operation.
Figure 1. Pinout: PLCC28 (Top View)
Table 1. PIN DESCRIPTION
PIN FUNCTION
SINA, SINA
SINB, SINB
SEL
Q0Q3
CLK, CLK
CL/4, CL/4
CL/8, CL/8
MODE
SYNCH
VBB
VCC, VCCO
VEE
NC
ECL Differential Serial Data Input A
ECL Differential Serial Data Input B
ECL Serial Input Selector Pin
ECL Parallel Data Outputs
ECL Differential Clock Inputs
ECL Differential ÷4 Clock Output
ECL Differential ÷8 Clock Output
ECL Conversion Mode 4-Bit/8-Bit
ECL Conversion Synchronizing Input
Reference Voltage Output
Positive Supply
Negative Supply
No Connect
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2


Part Number MC100E445
Description 4-BIT SERIAL/ PARALLEL CONVERTER
Maker ON Semiconductor
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