Features IEEE 1149.1 (JTAG) Compliant and At-Speed BIST test mode. All 8 channels synchronous to one parallel clock rate, from 18 to 66 MHz Duplicates function of multiple DS92LV1021 and '1023 10-bit Serializer devices Serializes from one to eight 10-bit parallel inputs into data streams with embedded clock Eight 5 mA modified Bus LVDS outputs that are capable to drive double terminations @Speed Test - PRBS generation to check LVDS transmission path to SCAN921224, SCAN921226, SCAN921260, or SCAN926260 On chip filtering for PLL 740mW typ power dissipation (loaded, PRBS, 66MHz, 3.3V) High impedance inputs and outputs on power off Single power supply at +3.3V (+/-10%) 196-pin LBGA package Industrial temperature range operation: -40 to +85°C Description The SCAN928028 integrates eight serializer devices into a single chip. The SCAN928028 can simultaneously serialize up to eight 10-bit data streams. The 10-bit parallel inputs are LVTTL signal levels. The serialized outputs are LVDS signals with extra drive current for point-to-point and lightly loaded multidrop applications. Each serializer block in the SCAN928028 operates independently by using strobes from a single shared PLL. The SCAN928028 uses a single +3.3V power supply with a typical power dissipation of 740mW (3.3V / PRBS / 66 MHz). Each serializer channel has a unique power down control to further conserve power consumption. For high-speed LVDS serial data transmission, line quality is essential, thus the SCAN928028 includes an @SPEED TEST function. Each Serializer channel has the ability to internally generate a PRBS data pattern. This pattern is received by specific deserializers (SCAN921224) which have the complement PRBS verification circuit. The deserializer checks the data pattern for bit errors and reports any errors on the test verification pins on the deserializer. For additional information - please see the Applications Information section in this datasheet.

Typical Application *click for larger image	Block Diagram *click for larger image
Typical Performance *click for larger image

Datasheets

Title		Size	Date	Other Language
	SCAN928028 8 Channel 10:1 Serializer with IEEE 1149.1 and At-Speed BIST	399 Kbytes	2-May-08

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
SCAN928028TUF/NOPB SCAN928028TUF RoHS Status	LBGA	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 62 MOUSER Worldwide 119	$15.80 each at 1K+ pcs	tray of 119
SCAN928028TUFX/NOPB SCAN928028TUFX RoHS Status	LBGA	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$15.80 each at 1K+ pcs	reel of 1000

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for SCAN928028.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for SCAN928028 is located at RoHS Status.

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
SCAN928028TUF/NOPB SCAN928028TUF	554.692 564.002	LBGA	196	3 3	260 220	Detail	Download	ibis file	NSUZXYYTTE# SCAN928028T UF BBBBB
SCAN928028TUFX/NOPB SCAN928028TUFX	554.692 564.002	LBGA	196	3 3	260 220	Detail	Download	ibis file	NSUZXYYTTE# SCAN928028T UF BBBBB

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for SCAN928028.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for SCAN928028 is located at RoHS Status.

CAD Symbols and Models Download SCAN928028 CAD Symbols

Models ibis file

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
SCAN928028TUF	CMOS8	1	13725	73	0	1774500	2	503519220
SCAN928028TUFX	CMOS8	1	13725	73	0	1774500	2	503519220

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for SCAN928028.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for SCAN928028 is located at RoHS Status.