SSTUB32868ET Product Information|NXP

Buy Options

SSTUB32868ET/G,518

No Longer Manufactured

12NC: 935282727518

Details

Order

SSTUB32868ET/S,518

No Longer Manufactured

12NC: 935283145518

Details

Order

Operating Features

ParameterValue
Security Status
COMPANY PUBLIC
Function
Latches/registered drivers
Description
1.8 V 28-bit 1 : 2 configurable registered buffer with parity for DDR2-800 RDIMM applications
ParameterValue
Number of pins
176
Package Style
TFBGA

Environmental

Part/12NCPbFreeEU RoHSHalogen FreeRHF IndicatorREACH SVHCWeight (mg)
SSTUB32868ET/G,518(935282727518)
Yes
Yes
Yes
DREACH SVHC
222.814
SSTUB32868ET/S,518(935283145518)
Yes
Yes
Yes
DREACH SVHC
220.0

Quality

Part/12NCSafe Assure Functional SafetyMoisture Sensitivity Level (MSL)Peak Package Body Temperature (PPT) (C°)
Lead Free SolderingLead SolderingLead Free Soldering
SSTUB32868ET/G,518
(935282727518)
-
2
240
260
SSTUB32868ET/S,518
(935283145518)
-
2
240
260

Shipping

Part/12NCHarmonized Tariff (US)Disclaimer
SSTUB32868ET/G,518
(935282727518)
854239
SSTUB32868ET/S,518
(935283145518)
854239

Discontinued and Replacement Part Data

Part/12NCDiscontinuance NoticeLast Time Buy DateLast Time Delivery DateReplacement
SSTUB32868ET/G,518
(935282727518)
-
2002-12-31
2002-12-31
SSTUM32868ET,518
(935282729518)
SSTUB32868ET/S,518
(935283145518)
-
2002-12-31
2002-12-31
SSTUM32868ET,518
(935282729518)

More about SSTUB32868ET

Archived content is no longer updated and is made available for historical reference only.

The SSTUB32868 is a 1.8 V 28-bit 1 : 2 register specifically designed for use on two rank by four (2R × 4) and similar high-density Double Data Rate 2 (DDR2) memory modules. It is similar in function to the JEDEC-standard 14-bit DDR2 register, but integrates the functionality of the normally required two registers in a single package, thereby freeing up board real-estate and facilitating routing to accommodate high-density Dual In-line Memory Module (DIMM) designs.

The SSTUB32868 also integrates a parity function, which accepts a parity bit from the memory controller, compares it with the data received on the D-inputs and indicates whether a parity error has occurred on its open-drain PTYERR pin (active LOW).

It further offers added features over the JEDEC standard register in that it can be configured for normal or high output drive strength, simply by tying input pin SELDR either HIGH or LOW as needed. This allows use in different module designs varying from low to high density designs by picking the appropriate drive strength to match net loading conditions. Furthermore, the SSTUB32868 features two additional chip select inputs, which allow more versatile enabling and disabling in densely populated memory modules. Both added features (drive strength and chip selects) are fully backward compatible to the JEDEC standard register.

The SSTUB32868 is packaged in a 176-ball, 8 × 22 grid, 0.65 mm ball pitch, thin profile fine-pitch ball grid array (TFBGA) package, which (while requiring a minimum 6 mm × 15 mm of board space) allows for adequate signal routing and escape using conventional card technology.

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