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Winbond

W971GG6NB-25 TR - 1Gbit DDR2 SDRAM 400MHz | Winbond

부품 번호: W971GG6NB-25 TR ✓ 활성
재고 있음 영업일 기준 1~3일 내 발송
1.8 V Vdss 84-TFBGA (8 x 12.5 mm) Package 400 MHz Speed SDRAM - DDR2 Memory
시작가 $5.62 USD / 개
MOQ: 1 |
가격 업데이트: 2026-09-13
볼륨 가격
수량 단가 합계
1 $6.91 $6.91
10 $6.56 $65.60
100 $6.22 $622.00
500 $5.91 $2,955.00
1,000 $5.62 $5,620.00
ℹ️ 모든 가격은 USD 기준입니다

W971GG6NB-25 TR 개요

The Winbond Electronics W971GG6NB-25 TR is a 1 Gbit DDR2 SDRAM memory IC organized as 64M x 16 (8,388,608 words x 8 banks x 16 bits), operating at a 400 MHz clock rate with 57.5 ns access time, housed in an 84-ball TFBGA package (8 x 12.5 mm) supplied in Tape & Reel packaging.

DDR2 SDRAM (Double Data Rate Type Two Synchronous Dynamic Random Access Memory) is a class of volatile memory that transfers data on both rising and falling edges of the clock, doubling effective bandwidth compared to single data rate SDRAM. Within the memory hierarchy, it sits as a main-system-memory technology between DDR1 and DDR3, and remains widely used in cost-sensitive embedded and industrial designs that do not require DDR3/DDR4 bandwidth.

Key features include a JEDEC-compliant SSTL_18 interface operating from a single 1.8V supply, 8 internal banks with burst lengths of 4 or 8, and on-die termination support. The x16 organization simplifies 16-bit and 32-bit memory subsystems by reducing required bus width and controller complexity.

Architecturally, the device achieves high-speed transfer rates up to DDR2-800 class performance, using a 4n prefetch architecture that internally runs at half the external data rate. Posted CAS additive latency and programmable CAS latency help the memory controller schedule reads efficiently and minimize command bus contention.

Typical applications include set-top boxes, networking equipment, industrial HMI panels, digital television, and embedded processor memory subsystems for SoCs requiring DDR2 interfaces.

Design consideration: ensure SSTL_18 signal integrity with proper on-die or external termination and adhere to datasheet trace-length matching rules for the 84-TFBGA ballout; refresh (64 ms) must be scheduled per controller settings.

This page synthesizes distributor pricing, drop-in family alternatives, and practical DDR2 design notes not consolidated in the manufacturer datasheet.

드롭인 대체품: W971GG6NB-25 TR — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: W971GG6NB-25 TR (동일 폼 팩터 및 풋프린트) — 차이점: Clock Frequency, Memory Type, Organization, Package, Mounting Type.

Winbond
Clock Frequency: 400 MHz (DDR2-800)
Memory Type: DDR2 SDRAM (volatile DRAM)
Organization: 8M x 8 banks x 16 bits (64M x 16)
비교 대상: W971GG6NB-25 TR →
Winbond
Clock Frequency: 333 MHz (667 Mbps data rate)
Memory Type: DDR2 SDRAM
Organization: 8M x 8 banks x 16 bits
비교 대상: W971GG6NB-25 TR →

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

W971GG6NB-25

✅ 드롭인
📦 84-TFBGA (8x12.5)
tray packaging instead of Tape & Reel; identical die, same 400 MHz / 1Gbit x16 specs

📋 참조 대체품 (카탈로그에 없음)

W971GG6NB-25 TR

✅ 드롭인
Winbond
📦 84-TFBGA (8x12.5)
SDRAM - DDR2 · 1 Gbit · 64M x 16 (8,388,608 words x 8 banks x 16 bits) · 400 MHz · 57.5 ns · 15 ns · SSTL_18 · 1.8 V

✓ 재고 있음

$5.62 / 개

데이터시트 보기 →

W971GG6NB-6 TR

✅ 드롭인 ⚠️ 사양 미검증
📦 84-TFBGA (8x12.5)
faster speed grade (-6 vs -25): higher tested clock/CAS bin, same organization and ballout; controller timing must support the faster bin

📋 참조 대체품 (카탈로그에 없음)

W971GG6NB-18 TR

✅ 드롭인 ⚠️ 사양 미검증
📦 84-TFBGA (8x12.5)
different speed grade bin (-18) within same family; same 1Gbit 64M x16 organization, SSTL_18 interface and 84-TFBGA footprint

📋 참조 대체품 (카탈로그에 없음)

W971GG6SB-25 TR

✅ 드롭인 ⚠️ 사양 미검증
📦 84-TFBGA (8x12.5)
die-revision variant (SB vs NB) in same Winbond DDR2 x16 family and package; verify datasheet timing table before swap

📋 참조 대체품 (카탈로그에 없음)

W971GG6NB-25 TR 최대 정격 & 전기적 특성

메모리 유형 SDRAM - DDR2
메모리 크기 1 Gbit
메모리 구성 64M x 16 (8,388,608 words x 8 banks x 16 bits)
Clock Frequency 400 MHz
Access Time 57.5 ns
Write Cycle Time 15 ns
인터페이스 SSTL_18
공급 전압 1.8 V
Number of Banks 8
데이터 속도 DDR2-800
패키지 84-TFBGA (8 x 12.5 mm)
실장 유형 Surface Mount
Packaging Tape & Reel (TR)
RoHS 상태 Compliant (all Winbond packaging RoHS compliant per manufacturer)

W971GG6NB-25 TR 84-tfbga (8 x 12.5 mm) 핀 구성 가이드

W971GG6NB-25 TR(84-tfbga (8 x 12.5 mm) 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.

W971GG6NB-25 TR의 84-tfbga (8 x 12.5 mm) 패키지 핀아웃 다이어그램

다음에 대한 상세 핀아웃 데이터 없음: W971GG6NB-25 TR.

다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.

일반적인 애플리케이션

W971GG6NB-25 TR 적합 용도: 6 애플리케이션s: Set-Top Boxes and Digital TV, Industrial HMI and Control Panels, Networking Equipment, Embedded SoC Main Memory, Automotive Infotainment (Non-Safety) Retrofits, Test and Measurement Instruments.

📺

Set-Top Boxes and Digital TV

The W971GG6NB-25 TR fits set-top box and digital TV platforms whose SoCs expose DDR2 memory controllers with 16-bit buses. Its 64M x 16 organization lets one chip serve the full 16-bit channel, cutting component count and PCB layers versus x8 designs, while DDR2-800 class bandwidth (400 MHz clock, double data rate) comfortably sustains video decode buffering and channel-change caching. Because the device runs on a single 1.8V SSTL_18 supply, power budgeting is straightforward for always-on consumer boxes. Board designers should place the TFBGA within the controller's fly-by length-matching rules and enable on-die or external termination to keep signal integrity at speed. The result is a cost-optimized main memory subsystem for broadcast and streaming products.

🏭

Industrial HMI and Control Panels

Industrial human-machine interface panels and PLC front ends typically need 128 MB to 512 MB of working memory for graphics stacks and protocol stacks - exactly the range a 1 Gbit DDR2 device covers. The W971GG6NB-25 TR's JEDEC-standard SSTL_18 interface connects directly to industrial-grade SoCs and FPGAs with DDR2 hard controllers, and its 8-bank architecture supports the random-access patterns of GUI frame buffers and logging buffers. Winbond's long-lifecycle DDR/SDR line and broad distribution stocking (DigiKey, Mouser, LCSC) ease industrial BOM continuity. Designers should confirm the datasheet temperature range against cabinet conditions and schedule controller refresh at the JEDEC 64 ms interval, derating for high ambient temperatures.

🌐

Networking Equipment

Edge routers, switches, and wireless access points use DDR2 as packet-buffer and route-table memory. The W971GG6NB-25 TR's 400 MHz double-data-rate interface delivers DDR2-800 class bandwidth in a compact 84-TFBGA (8 x 12.5 mm) footprint, fitting the dense memory arrays typical of line-card designs. The x16 organization maps neatly onto 16-bit and 32-bit network processor buses, halving chip count compared to x8 parts. Burst lengths of 4 or 8 let the memory controller match packet sizes, improving effective throughput. When multiple DRAMs share a bus, follow the datasheet termination guidance for SSTL_18 nets and keep DQS-DQ skews within spec to sustain error-free operation at full clock rate.

🧩

Embedded SoC Main Memory

Many embedded ARM, MIPS, and PowerPC SoCs still ship with DDR2-only memory controllers, making the W971GG6NB-25 TR a natural main-memory choice. One device provides 128 MByte of working memory - sufficient for Linux-based firmware with graphics or network services - via a simple point-to-point or short multi-drop SSTL_18 bus. The 1.8V single-rail supply simplifies power-tree design alongside 3.3V and 1.2V logic rails. Firmware teams should configure the controller for the -25 speed grade's CAS latency and 57.5 ns access timing and verify boot-time memory training against Winbond's timing tables. Tape & Reel packaging supports high-volume automated SMT placement on production lines.

🚗

Automotive Infotainment (Non-Safety) Retrofits

Aftermarket head units and non-safety infotainment modules built on DDR2-generation media processors use 1 Gbit DDR2 x16 parts as framebuffer and application memory. The W971GG6NB-25 TR supplies DDR2-800 class bandwidth adequate for navigation rendering and audio buffering, and the 84-TFBGA (8 x 12.5 mm) package suits the compact two-sided boards common in 1-DIN chassis. Note that this standard-grade part is not AEC-Q100 qualified; it suits aftermarket and non-safety roles, not under-hood or safety-critical nodes. In-vehicle thermal environments demand a temperature-range review and possible conformal coating, plus refresh scheduling derated for elevated cabin temperatures.

🔧

Test and Measurement Instruments

Bench instruments, data loggers, and compact test modules use DDR2 DRAM for sample buffering and result storage. The W971GG6NB-25 TR's 128 MByte capacity and 400 MHz DDR2 interface provide enough bandwidth to stream digitizer data while the host CPU processes previous blocks. The SSTL_18 interface ties directly into FPGA memory controllers (Xilinx and Intel hard/soft DDR2 controllers are mature), shortening firmware development. For high-accuracy instruments, isolate DRAM power rails from analog supplies and follow the datasheet layout rules for DQS strobe routing to minimize capture jitter. Tape & Reel delivery suits contract manufacturers building instrument families on a common memory footprint.

추천 제품 요약

W971GG6NB-25 Tray-packaged identical die for pilot builds 사용처: Set-Top Boxes and Digital TV, Industrial HMI and Control Panels, Networking Equipment, Automotive Infotainment (Non-Safety) Retrofits, Test and Measurement Instruments W9751G8JB-25 x8 DDR2 option for wider buses 사용처: Set-Top Boxes and Digital TV W971GG6NB-6 TR Faster speed grade same footprint 사용처: Embedded SoC Main Memory
What is the Winbond W971GG6NB-25 TR?
The W971GG6NB-25 TR is a 1 Gbit DDR2 SDRAM from Winbond Electronics organized as 64M x 16 (8 banks x 16 bits), running at a 400 MHz clock with a 57.5 ns access time. It uses an SSTL_18 interface on a single 1.8V supply and comes in an 84-TFBGA (8 x 12.5 mm) package on Tape & Reel. According to the Winbond W971GG6NB datasheet, the family achieves transfer rates up to DDR2-800 class.
What is the price of W971GG6NB-25 TR?
The unit price of W971GG6NB-25 TR is approximately $6.91 at quantity 1, per DigiKey pricing as of 2026-09-14. LCSC lists the part in stock from $8.6125. Typical quantity breaks reduce the unit cost: expect roughly $6.5-$5.6 range at 10-1000 pieces depending on distributor and stock conditions. Always request a live quote, as DRAM pricing fluctuates with market cycles.
Where to buy W971GG6NB-25 TR online?
W971GG6NB-25 TR is available from authorized distributors including DigiKey (part number 256-W971GG6NB-25TR-ND), Mouser (DRAM 1Gb DDR2-800 x16 T&R listing), and LCSC (in stock, C17224612). Octopart also aggregates quotes from 3 distributors for this part. XAIPART offers this component with datasheet access and volume tier pricing; all channels sell the manufacturer-new, Tape & Reel packaged part.
Is W971GG6NB-25 TR in stock?
Yes, W971GG6NB-25 TR shows in-stock status at multiple distributors. DigiKey states ships today, and LCSC lists the part as in stock (from $8.6125). Wolfchip reported 9500 pcs of the related W971GG6NB-25 in stock as of August 2026. Stock levels change daily in the DRAM market, so confirm real-time availability with the distributor before committing a production BOM.
What is the difference between W971GG6NB-25 TR and W971GG6NB-25?
The only difference is packaging: W971GG6NB-25 TR is supplied on Tape & Reel for automated pick-and-place assembly, while W971GG6NB-25 (without TR) is supplied in tray form. Both are the identical 1 Gbit DDR2 SDRAM die in the same 84-TFBGA (8 x 12.5 mm) package with the same 400 MHz clock, SSTL_18 interface, and 1.8V supply. They are fully interchangeable functionally; choose TR for reel-fed SMT lines.
What is the best drop-in replacement for W971GG6NB-25 TR?
The closest drop-in replacements are other Winbond W971GG6NB family members in the same 84-TFBGA package, such as W971GG6NB-25 (tray version, identical die) and other speed-grade suffixes like W971GG6NB-6 TR if your controller timing budget permits. Because the footprint, ballout, organization (64M x 16), and interface (SSTL_18) are unchanged across the family, replacement requires only a firmware or timing-parameter review, not a PCB change.
Is there a cross-brand equivalent for W971GG6NB-25 TR?
JEDEC-standardized DDR2 SDRAM parts from other vendors (for example 1Gbit x16 DDR2 in 84-ball FBGA from Nanya or Etron) can be functionally similar, but no cross-brand part was confirmed as pin-compatible in the verified data for this page. According to Winbond and distributor data, the safest substitute path is staying within the W971GG6NB family. Any cross-brand swap requires a full ballout and datasheet comparison plus memory controller re-validation.
W971GG6NB-25 TR vs a DDR3 SDRAM: which should I choose?
Choose the W971GG6NB-25 TR (DDR2) when your host SoC or memory controller has a DDR2-only interface, or when 1.8V SSTL_18 signaling and DDR2-800 bandwidth (400 MHz clock, double-data-rate) meet your performance needs at the lowest cost. Choose DDR3 when you need higher data rates, lower per-bit power, or larger densities. The two are not interchangeable: DDR3 uses a different interface (SSTL_15), ballout, and controller IP, so the choice is dictated by the processor.
When should I choose the x16 organization of W971GG6NB-25 TR over x8 parts?
Choose the 64M x 16 organization when your memory bus is 16 or 32 bits wide and you want to minimize component count and controller complexity. An x16 device delivers 16 bits per chip select, so one device serves a 16-bit bus or two devices serve a 32-bit bus, reducing trace count versus four x8 parts. The trade-off is that x16 parts expose fewer bank-control signals per bit of capacity, which can slightly reduce controller scheduling flexibility in some SoCs.
Is W971GG6NB-25 TR suitable for industrial applications?
Yes, the W971GG6NB-25 TR is widely used in industrial HMI panels, networking equipment, and set-top-box platforms that employ DDR2 interfaces. Its JEDEC-compliant SSTL_18 interface, 8-bank architecture, and industrial distribution channel support (DigiKey, Mouser, LCSC all stocking) make it practical for industrial BOMs. Confirm the datasheet operating temperature range against your enclosure conditions, and verify long-term availability with Winbond since DDR2 is a mature technology.
Where can I download the W971GG6NB-25 TR datasheet PDF?
The W971GG6NB datasheet PDF is available from Mouser at mouser.com/datasheet/2/949/W971GG6NB_A01-1923530.pdf and from datasheet aggregators such as Octopart and datasheets.com. The manufacturer document W971GG6NB_A01 describes the 1G bit DDR2 SDRAM organized as 8,388,608 words x 8 banks x 16 bits. Winbond's official product page also links the current revision; always build from the latest Winbond-published revision.
Where can I find the W971GG6NB-25 TR pinout?
The complete 84-ball TFBGA ballout for the W971GG6NB-25 TR is defined in the Winbond W971GG6NB datasheet (package drawing section), which maps DQ0-DQ15, DQS/DQS#, address, bank, command, clock, power, and ground balls for the 8 x 12.5 mm package. Distributors such as LCSC and Avaq also publish pin-layout diagrams for this part. Always verify against the official Winbond datasheet rather than third-party diagrams before layout.
What are the key specifications of W971GG6NB-25 TR that engineers should know?
Key specifications: 1 Gbit DDR2 SDRAM, 64M x 16 organization across 8 banks, 400 MHz clock (DDR2-800 class), 57.5 ns access time, 15 ns write cycle time, SSTL_18 interface, single 1.8V supply, 84-TFBGA package measuring 8 x 12.5 mm, Tape & Reel packaging. Per the Winbond datasheet, the W971GG6NB family supports burst lengths of 4 or 8 with programmable CAS latency for controller scheduling.
What does the -25 suffix mean in W971GG6NB-25?
In Winbond DDR2 SDRAM part numbering, the numeric suffix after the hyphen denotes the speed grade (timing bin), which fixes the maximum clock rate, CAS latency, and access time the device is tested to meet. Distributor listings show the -25 grade running at a 400 MHz clock with 57.5 ns access time (DDR2-800 class). When substituting speed grades within the family, confirm your controller supports the timing parameters of the replacement grade.
Is W971GG6NB-25 TR RoHS compliant?
Yes. According to Winbond's official purchasing guide, all Winbond memory products use RoHS-compliant packaging, and the W971GG6NB family is supplied in halogen-free, RoHS-compliant form. Winbond also notes that parts carrying a G character in the 13th position of the part number are manufactured using renewable energy, with specifications otherwise identical. Confirm lead-free and REACH declarations via the Winbond product page or your distributor for formal documentation.

엔지니어링 참조 데이터: W971GG6NB-25 TR — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the W971GG6NB-25 TR when your host SoC or FPGA has a DDR2 controller with a 16-bit bus and you need 128 MB of main memory at DDR2-800 class bandwidth in Tape & Reel volume packaging. Choose W971GG6NB-25 (tray) for prototype builds or hand placement of the identical die. Choose W971GG6NB-6 TR if your controller and budget favor a faster tested speed grade on the same 84-TFBGA footprint, or W971GG6NB-18 TR for its specific bin. Do not choose this part for new designs targeting DDR3/DDR4 controllers - the interfaces are incompatible - and note it is a standard-grade (non-AEC-Q100) device, unsuited to safety-critical automotive nodes. Trade-off summary: DDR2 delivers the lowest system cost for legacy platforms at the expense of lower bandwidth and higher per-bit power than DDR3.

대체품과의 비교

파라미터 이 제품 W971GG6NB-25 W971GG6NB-6 TR W971GG6NB-18 TR W971GG6SB-25 TR
Package 84-TFBGA (8x12.5 mm) 84-TFBGA (8x12.5 mm) - same 84-TFBGA (8x12.5 mm) - same 84-TFBGA (8x12.5 mm) - same 84-TFBGA (8x12.5 mm) - same
Brand Winbond Electronics Winbond Electronics Winbond Electronics Winbond Electronics Winbond Electronics
Memory Size 1 Gbit 1 Gbit 1 Gbit 1 Gbit 1 Gbit
Organization 64M x 16 64M x 16 64M x 16 64M x 16 64M x 16
Speed Grade -25 (400 MHz clock, 57.5 ns access) -25 (identical) -6 (faster bin) -18 bin -25 (die revision SB)
Interface / Supply SSTL_18, 1.8 V SSTL_18, 1.8 V SSTL_18, 1.8 V SSTL_18, 1.8 V SSTL_18, 1.8 V
Packaging Tape & Reel (TR) Tray Tape & Reel Tape & Reel Tape & Reel

주요 차별점

  • Identical die in Tape & Reel for automated assembly (vs W971GG6NB-25 (tray))
  • JEDEC-compliant DDR2 with broad SoC support (vs Newer DDR3/DDR4 parts)
  • Speed-grade upgrade path within the same footprint (vs W971GG6NB-6 TR)

설계 노트

Route the SSTL_18 address/command bus as a controlled-impedance (~50 ohm single-ended) topology with series termination at the controller, and match DQ/DQS trace lengths per the Winbond W971GG6NB datasheet layout guidelines. Keep DQS-DQ skew minimal and reference all DDR2 nets to a solid ground plane; avoid routing DDR2 signals across plane splits. At 400 MHz clock rates, on-die termination or external SSTL_18 termination resistors are essential to suppress reflections on the 84-TFBGA ballout.

The device operates from a single 1.8V rail for both core and SSTL_18 I/O; provide separate bulk and local decoupling (bulk capacitor near the regulator plus multiple 0.1 uF ceramics at VDD/VDDQ balls of the 84-TFBGA). DDR2 supply current is bursty and data-dependent, so size the regulator for peak read/write bursts, not average current, and add a small ferrite bead only if rail noise coupling to sensitive analog circuitry is observed. Verify VTT termination rail sizing if external termination is used.

Verify the memory controller is configured for the -25 speed grade timing (400 MHz clock, correct CAS latency per the Winbond datasheet speed-bin table) before qualification; substituting a different speed-grade suffix (-6, -18) requires re-checking the controller timing registers. Also schedule refresh at the datasheet-specified interval with temperature-derating if the environment exceeds nominal, and remember the TR suffix is packaging only - the die is identical to the tray version.

규정 준수 정보

RoHS
Compliant
REACH
Unknown
AEC-Q100
Not Applicable
무연
Yes
무할로겐
Yes
분쟁 광물
Unknown

Per Winbond official purchasing guide: all Winbond Flash/memory products use RoHS-compliant, Halogen-Free packaging. Parts with G in the 13th character of the part number are manufactured using renewable energy with identical specifications.

데이터 검증일: 2026-09-14 — XAIPART 부품 엔지니어링 팀이 검증하고 관리한 데이터

관련 검색

W971GG6NB-25 TR W971GG6NB-25 TR datasheet Winbond W971GG6NB-25 TR price 1Gbit DDR2 SDRAM 64M x16 84-TFBGA W971GG6NB-25 TR vs W971GG6NB-25 W971GG6NB-25 TR drop-in replacement DDR2-800 SDRAM for set-top box memory buy W971GG6NB-25 TR in stock W971GG6NB-25 TR pinout ballout SSTL_18 DDR2 SDRAM 1.8V 400 MHz what can replace W971GG6NB-25 TR Winbond DDR2 SDRAM industrial HMI memory

관련 부품 & 용어

Winbond Electronics W971GG6NB-25 TR W971GG6NB-25 DDR2 SDRAM Double Data Rate SSTL_18 84-TFBGA TFBGA package family BGA surface mount JEDEC RoHS DDR2-800 64M x 16 Tape & Reel set-top box industrial HMI networking equipment memory controller CAS latency refresh interval DigiKey Mouser
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