Select site:
- English
SSTUM32865
General description
The SSTUM32865 is a 1.8 V 28-bit 1 : 2 register specifically designed for use on two rank by four (2R x 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 SSTUM32865 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 is permanently configured for high output drive strength. This allows use in high density designs with heavier than normal net loading conditions. Furthermore, the SSTUM32865 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 SSTUM32865 is packaged in a 160-ball, 12 x 18 grid, 0.65 mm ball pitch, thin profile fine-pitch ball grid array (TFBGA) package, which, while requiring a minimum 9 mm x 13 mm of board space, allows for adequate signal routing and escape using conventional card technology.
Features
- 28-bit data register supporting DDR2
- Fully compliant to JEDEC standard for SSTUB32865
- Supports 2 rank by 4 DIMM density by integrating equivalent functionality of two JEDEC-standard DDR2 registers (that is, 2 x SSTUB32864 or 2 x SSTUB32866)
- Parity checking function across 22 input data bits
- Parity out signal
- Controlled multi-impedance output impedance drivers enable optimal signal integrity and speed
- Meets or exceeds SSTUB32865 JEDEC standard speed performance
- Supports up to 450 MHz clock frequency of operation
- Permanently configured for high output drive
- Optimized pinout for high-density DDR2 module design
- Chip-selects minimize power consumption by gating data outputs from changing state
- Two additional chip select inputs allow optional flexible enabling and disabling
- Supports Stub Series Terminated Logic SSTL_18 data inputs
- Differential clock (CK and CK) inputs
- Supports LVCMOS switching levels on the control and RESET inputs
- Single 1.8 V supply operation (1.7 V to 2.0 V)
- Available in 160-ball 9 mm x 13 mm, 0.65 mm ball pitch TFBGA package
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| SSTUM32865ET/G | SSTUM32865ET/G-T | 9352 849 02518 | Volume production | SOT802-2
(TFBGA160) | Reel Dry Pack, SMD, 13" | Standard Marking | SSTUM32865ET/G
| |
| SSTUM32865ET/S | SSTUM32865ET/S-T | 9352 849 05518 | Volume production | SOT802-2
(TFBGA160) | Reel Dry Pack, SMD, 13" | Standard Marking | SSTUM32865ET/S
|
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| SSTUM32865ET/G | 9352 849 02518 | Order samples | ||||||
| SSTUM32865ET/S | 9352 849 05518 | not available |
Applications
- 400 MT/s to 800 MT/s high-density (for example, 2 rank by 4) DDR2 registered DIMMs
- DDR2 Registered DIMMs (RDIMM) desiring parity checking functionality
Parametrics/similar products
| Type number | Package | Supply voltage(V) | Application | FEATURES | Other features | Operating temp.(Cel) | Propagation Delay(ns) | Operating Frequency(MHz) | Inputs | Outputs |
|---|---|---|---|---|---|---|---|---|---|---|
| SSTUM32865ET/G | SOT802-2
(TFBGA160) | 1.7~2.0 | DDR2 800-1G Registered DIMMs | Parity checking | high drive strength | 0~+70 | 1.0~1.4 | 0~550 | 28 x SSTL_18 | 56 x SSTL_18 |
| SSTUM32865ET/S | SOT802-2
(TFBGA160) | 1.7~2.0 | DDR2 800-1G Registered DIMMs | Parity checking | high drive strength | 0~+85 | 1.0~1.4 | 0~550 | 28 x SSTL_18 | 56 x SSTL_18 |
Similar products
SSTUM32865 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.
Disclaimer
The information published on product information pages of the www.nxp.com or www.semiconductors.com websites is an extract from product data sheets and is for information purposes only. For detailed information please check the most recent version of the relevant product data sheet as published on these websites. In the event of any conflict between product information pages and data sheets or deviations from information provided in the product data sheets on these product information pages, the information provided in the product data sheets shall prevail.
The product status of the product(s) described in the product data sheet may have changed since publication of the data sheet and therefore information in datasheets on product status may be outdated. The latest information on product status is published on the product information pages of the above-mentioned websites.
As from October 1st, 2006 Philips Semiconductors has a new trade name - NXP Semiconductors, which will be used in future data sheets together with new contact details. In data sheets where the previous Philips references remain, please use the new links as shown below.
- http://www.philips.semiconductors.com use http://www.nxp.com
- http://www.semiconductors.philips.com use http://www.nxp.com (Internet)
- sales.addresses@www.semiconductors.philips.com use salesaddresses@nxp.com (e-mail)
The copyright notice at the bottom of each page (or elsewhere in the document, depending on the version)
- © Koninklijke Philips Electronics N.V. (year). All rights reserved -
is replaced with:
- © NXP B.V. (year). All rights reserved.-
If you have any questions related to the data sheet, please contact our nearest sales office via e-mail or phone (details via salesaddresses@nxp.com). Thank you for your cooperation and understanding.