Select site:
- English
SSTVF16857
General description
The SSTVF16857 is a 14-bit SSTL_2 registered driver with differential clock inputs, designed to operate between 2.3 V and 2.7 V. VDDQ must not exceed VCC . Inputs are SSTL_2 type with VREF normally at 0.5*VDDQ . The outputs support class I which can be used for standard stub-series applications or capacitive loads. Master reset (RESET) asynchronously resets all registers to zero.
The SSTVF16857 is intended to be incorporated into standard DIMM (Dual In-Line Memory Module) designs defined by JEDEC, such as DDR (Double Data Rate) SDRAM or SDRAM II Memory Modules. Different from traditional SDRAM, DDR SDRAM transfers data on both clock edges (rising and falling), thus doubling the peak bus bandwidth. A DDR DRAM rated at 166 MHz will have a burst rate of 333 MT/s (mega-transfers per second). The modules require between 23 and 27 registered control and address lines, so two 14-bit wide devices will be used on each module. The SSTVF16857 is intended to be used for SSTL_2 input and output signals.
The device data inputs consist of differential receivers. One differential input is tied to the input pin while the other is tied to a reference input pad, which is shared by all inputs.
The clock input is fully differential to be compatible with DRAM devices that are installed on the DIMM. However, since the control inputs to the SDRAM change at only half the data rate, the device must only change state on the positive transition of the CLK signal. In order to be able to provide defined outputs from the device even before a stable clock has been supplied, the device must support an asynchronous input pin (reset), which when held to the LOW state will assume that all registers are reset to the LOW state and all outputs drive a LOW signal as well.
Features
- Stub-series terminated logic for 2.5 V VDDQ (SSTL_2)
- Optimized for PC 2700 DDR (Double Data Rate) SDRAM applications
- Suitable for PC1600/PC2100 DDR SDRAM applications
- Suitable for PC3200 applications when used at VDD = 2.6 V
- Inputs compatible with JESD8-9 SSTL_2 specifications.
- Flow-through architecture optimizes PCB layout
- ESD classification testing is done to JEDEC Standard JESD22. Protection exceeds 2000 V to HBM per method A114.
- Latch-up testing is done to JEDEC Standard JESD78, which exceeds 100 mA.
- Full DDR300/333/400 solution @ 2.5V when used with PCKV857
- Available in TSSOP-48, TVSOP-48 and 56 ball VFBGA packages
- Superior VREF noise rejection
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| SSTVF16857DGG | SSTVF16857DGG | 9352 744 62512 | Volume production | SOT362-1
(TSSOP48) | Tube Dry Pack | Standard Marking | SSTVF16857DGG
| week 12, 2005 |
| SSTVF16857DGG | SSTVF16857DGG-T | 9352 744 62518 | Volume production | SOT362-1
(TSSOP48) | Reel Dry Pack, SMD, 13" | Standard Marking | SSTVF16857DGG
| week 12, 2005 |
| SSTVF16857DGV | SSTVF16857DGV-T | 9352 744 63118 | Volume production | SOT480-1
(TSSOP48) | Reel Pack, SMD, 13" | Standard Marking | SSTVF16857DGV
| week 14, 2005 |
| SSTVF16857DGV | SSTVF16857DGV | 9352 744 63112 | Volume production | SOT480-1
(TSSOP48) | Tube | Standard Marking | SSTVF16857DGV
| week 14, 2005 |
| SSTVF16857EV | SSTVF16857EV-T | 9352 744 64518 | Volume production | SOT702-1
(VFBGA56) | Reel Dry Pack, SMD, 13" | Standard Marking | SSTVF16857EV
|
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| SSTVF16857DGG | 9352 744 62512 | 1.2500 | Order samples | |||||
| SSTVF16857DGG | 9352 744 62518 | 1.2500 | not available | |||||
| SSTVF16857DGV | 9352 744 63118 | 1.2500 | Order samples | |||||
| SSTVF16857DGV | 9352 744 63112 | 1.2500 | not available | |||||
| SSTVF16857EV | 9352 744 64518 | 1.4100 | Order samples |
Technical documents
Support Documents
75014354;
Memory interface selection guide Support logic for memory modules and other memory subsystems (2005-06-01)
Parametrics/similar products
| Type number | Package | Supply voltage(V) | Application | Other features | Operating temp.(Cel) | Propagation Delay(ns) | Operating Frequency(MHz) | Inputs | Outputs | Set-up time (DATA-CLK)(ns) | Hold time (CLK-DATA)(ns) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| SSTVF16857DGG | SOT362-1
(TSSOP48) | 2.3~2.7 | DDR SDRAM register | master reset | 0~+70 | 2.4 | 210 | 14 x SSTL-2 | 14 x SSTL-2 | 0.2 | 0.75 |
| SSTVF16857DGV | SOT480-1
(TSSOP48) | 2.3~2.7 | DDR SDRAM register | master reset | 0~+70 | 2.4 | 210 | 14 x SSTL-2 | 14 x SSTL-2 | 0.2 | 0.75 |
| SSTVF16857EV | SOT702-1
(VFBGA56) | 2.3~2.7 | DDR SDRAM register | master reset | 0~+70 | 2.4 | 210 | 14 x SSTL-2 | 14 x SSTL-2 | 0.2 | 0.75 |
Similar products
SSTVF16857 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.