W9816G6JH-6 - 16Mb SDR SDRAM, 166 MHz, TSOP-50 | Winbond
MPN: W9816G6JH-6 ✗ Cuối đờiW9816G6JH-6 Tóm tắt
An SDR SDRAM is a synchronous dynamic random-access memory that uses a single-ended clock to synchronize command, address, and data transfers on a rising edge. SDRAM sits in the memory hierarchy between asynchronous SRAM (lowest density, no refresh, simpler) and later-generation DDR SDRAM (higher bandwidth via double data rate and on-die termination). It belongs to the broader category of volatile memory ICs, where each bit is stored on a capacitor-refreshed cell.
The W9816G6JH-6 features a 16-bit data bus, two internal banks for interleaved operation, and a synchronous interface driven by CLK, CKE, /RAS, /CAS, /WE, /CS, and DQML/DQMH byte-mask lines. Self-refresh and power-down modes are supported for low standby power, and the device operates from a 3.3 V supply typical for SDR SDRAM. The 50-TSOP II package (10.16 mm body width) is the JEDEC standard form factor for SDR SDRAM, enabling direct drop-in replacement in legacy embedded designs.
Typical applications include embedded Linux/MCU systems requiring bulk volatile memory (set-top boxes, industrial controllers, printers, automotive infotainment of its era), legacy networking equipment with 16-bit external memory buses, and graphic LCD frame buffers. The 5 ns access time makes it suitable for ARM7/ARM9-class processors and older MIPS cores that interface to SDRAM at 100-166 MHz. The two-bank architecture supports interleaved row activation that reduces precharge latency in streaming workloads.
When designing with this part, observe JEDEC standard PCB layout rules for TSOP-50: keep data, address, and clock traces matched within ±25 ps, maintain a continuous ground plane beneath the package, and use VSS/VCCQ decoupling capacitors within 5 mm of the supply pins. Because this is a 3.3 V parallel SDRAM, confirm that the host controller's external memory interface supports the LVTTL levels used by the W9816G6JH-6 before layout commit. The W9816G6JH-6I variant adds industrial temperature range (-40C to +85C) for harsh environments.
This page synthesizes cross-reference candidates, parametric comparisons, and design notes from the Winbond datasheet and distributor listings that are not aggregated on a single product page elsewhere.
Bộ thay thế dễ dàng lắp đặt cho W9816G6JH-6 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
W9816G6JH-6I
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
W9816G6JH-5
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
W9816G6JH-6I TR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
W9816G6JH-6K
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MT48LC16M16A2TG-6
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
IS42S16160B-6TL
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
AS4C16M16SA-6TIN
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
W9816G6JH-6 Tỷ lệ tối đa & tính chất điện
| Kiểu bộ nhớ | SDRAM (Synchronous DRAM), SDR |
| Density | 16 Mbit |
| Tổ chức | 512K words x 2 banks x 16 bits |
| Bề rộng đường dữ liệu | 16 bit |
| Number of Banks | 2 |
| Clock Frequency (Max) | 166 MHz |
| Access Time | 5 ns |
| Maximum Data Rate | 200M words/sec |
| Speed Grade | -6 |
| Operating Voltage | 3.3 V (LVTTL interface) |
| Loại giao diện | Parallel (synchronous) |
| Refresh | Auto-refresh / Self-refresh |
| Hộp | 50-pin TSOP II (10.16 mm body) |
| Kiểu lắp đặt | Surface Mount |
Cấu hình chân W9816G6JH-6
| Chân 1 | VCC — Power supply (3.3 V) |
| Chân 2 | DQ0 — Data I/O bit 0 |
| Chân 3 | DQ1 — Data I/O bit 1 |
| Chân 4 | DQ2 — Data I/O bit 2 |
| Chân 5 | DQ3 — Data I/O bit 3 |
| Chân 6 | VSS — Ground |
| Chân 7 | DQ4 — Data I/O bit 4 |
| Chân 8 | DQ5 — Data I/O bit 5 |
| Chân 9 | DQ6 — Data I/O bit 6 |
| Chân 10 | DQ7 — Data I/O bit 7 |
| Chân 11 | DQ8 — Data I/O bit 8 |
| Chân 12 | VSSQ — DQ ground |
| Chân 13 | DQ9 — Data I/O bit 9 |
| Chân 14 | DQ10 — Data I/O bit 10 |
| Chân 15 | DQ11 — Data I/O bit 11 |
| Chân 16 | DQ12 — Data I/O bit 12 |
| Chân 17 | DQ13 — Data I/O bit 13 |
| Chân 18 | VCCQ — DQ power (3.3 V) |
| Chân 19 | DQ14 — Data I/O bit 14 |
| Chân 20 | DQ15 — Data I/O bit 15 |
| Chân 21 | DQML — DQ mask lower byte (LDQM) |
| Chân 22 | DQMH — DQ mask upper byte (UDQM) |
| Chân 23 | VSS — Ground |
| Chân 24 | /WE — Write enable (active low) |
| Chân 25 | /CAS — Column address strobe (active low) |
| Chân 26 | /RAS — Row address strobe (active low) |
| Chân 27 | /CS — Chip select (active low) |
| Chân 28 | BA — Bank address (selects bank 0/1) |
| Chân 29 | A0 — Address bit 0 |
| Chân 30 | A1 — Address bit 1 |
| Chân 31 | A2 — Address bit 2 |
| Chân 32 | A3 — Address bit 3 |
| Chân 33 | VCC — Power supply (3.3 V) |
| Chân 34 | VSS — Ground |
| Chân 35 | A4 — Address bit 4 |
| Chân 36 | A5 — Address bit 5 |
| Chân 37 | A6 — Address bit 6 |
| Chân 38 | A7 — Address bit 7 |
| Chân 39 | A8 — Address bit 8 |
| Chân 40 | A9 — Address bit 9 |
| Chân 41 | A10 — Address bit 10 |
| Chân 42 | A11 — Address bit 11 |
| Chân 43 | NC — Not connected |
| Chân 44 | CKE — Clock enable |
| Chân 45 | CLK — Clock input |
| Chân 46 | NC — Not connected |
| Chân 47 | NC — Not connected |
| Chân 48 | NC — Not connected |
| Chân 49 | NC — Not connected |
| Chân 50 | NC — Not connected |
Ứng dụng tiêu biểu
W9816G6JH-6 phù hợp cho 7 Áp dụngs: Embedded MCU System Memory, Industrial Set-Top Box & Printer Controllers, Legacy Networking Equipment Frame Buffer, Automotive Infotainment (Legacy), LCD Frame Buffer for TFT Panels, POS Terminal & Handheld Scanner Memory, Educational / Hobby MCU Boards.
Embedded MCU System Memory
The W9816G6JH-6 functions as the main external volatile memory for ARM7/ARM9, MIPS, and PowerPC host controllers that lack internal SRAM large enough to hold a Linux image or video frame buffer. Its 16 Mbit capacity (2 MB) at 166 MHz with 5 ns access gives a 32 MB/sec peak per-channel bandwidth, matching the external memory interface of legacy 32-bit embedded SoCs. The two-bank architecture allows row activation interleaving that keeps precharge latency hidden behind active pages during streaming DMA. The 50-TSOP II footprint is standard JEDEC SDRAM, so any Winbond, Micron, or ISSI equivalent can be substituted without PCB rework, which is critical for long-life industrial designs.
Được đề xuất
Industrial Set-Top Box & Printer Controllers
The W9816G6JH-6 provides 2 MB of working memory for set-top box and printer controller designs that use an external SDRAM for code execution and packet buffering. The 166 MHz clock and 16-bit data bus yield enough throughput for MPEG-2 transport stream handling, USB peripheral enumeration, and raster-image line buffers. The 3.3 V LVTTL interface matches the legacy peripheral bus voltage of these products, removing the need for level shifters. With the W9816G6JH-6I industrial-temperature variant, designers can meet -40C to +85C operation for outdoor enclosures, factory floors, and remote terminal deployments without redesigning the memory subsystem.
Được đề xuất
Legacy Networking Equipment Frame Buffer
The W9816G6JH-6 is well suited as a packet-buffer memory in older routers, switches, and VoIP gateways that use 16-bit external memory buses. The 5 ns column access time keeps t_RCD and t_RP timing margins comfortable at 100-133 MHz bus operation, even when operating temperature stretches to industrial extremes. Two-bank interleaving lets the MAC engine write to one bank while the host CPU reads descriptors from the other, cutting DMA stall cycles in half compared with single-bank SRAM. The standard 50-TSOP II form factor allows mechanical reuse with incumbent Micron or ISSI SDRAM sockets.
Được đề xuất
Automotive Infotainment (Legacy)
Older-generation automotive head units, instrument clusters, and infotainment modules used 16 Mbit SDR SDRAM such as the W9816G6JH-6 paired with an automotive-grade SoC. The -6I industrial-temperature and W9816G6JH-6K automotive/industrial screening variants were specifically offered for this segment, supporting -40C to +85C operation across cabin and under-hood placements. The 166 MHz clock and 5 ns access are sufficient for MP3 decode, simple JPEG rendering, and CAN/LIN gateway buffering. Designers sourcing for end-of-life automotive platforms should verify AEC-Q100 status with the distributor because the standard -6 grade is not automotive qualified.
Được đề xuất
LCD Frame Buffer for TFT Panels
The W9816G6JH-6 holds a single 320x240 16-bit-pixel TFT frame buffer (153 KB) plus room for fonts, palettes, and waveform tables typical of small HMI displays. The 16-bit data width matches the parallel RGB interface of most low-cost TFT controllers, allowing the SDRAM DQ bus to feed the panel directly through a bus switcher. 166 MHz bandwidth supports 60 Hz refresh at full color depth without tearing, and the self-refresh mode drops standby current to a few milliamps for battery-backed operator panels.
Được đề xuất
POS Terminal & Handheld Scanner Memory
Point-of-sale terminals, handheld barcode scanners, and portable data terminals rely on the W9816G6JH-6 as cost-effective volatile memory for transaction buffering and firmware scratch space. The 2 MB capacity is sufficient for encryption key storage, customer data buffering, and small embedded databases. The 3.3 V supply and LVTTL interface pair naturally with low-power SoCs that share the same rail, and the W9816G6JH-6I variant covers refrigerated or outdoor retail environments. The standard 50-TSOP II footprint supports multi-source sourcing across Winbond, Micron, and ISSI for supply-chain resilience.
Được đề xuất
Educational / Hobby MCU Boards
The W9816G6JH-6 is a teaching and hobby staple: it shows up on STM32 Discovery-class boards, FPGA SDRAM controller reference designs, and university digital-design labs because its JEDEC standard pinout, well-documented timing, and 50-TSOP II footprint make it ideal for learning SDRAM controller design. Its 5 ns access time at 166 MHz gives student projects realistic timing budgets and exposes them to row-cycle, precharge, and refresh concepts. With prices as low as $2.96 at LCSC as of 2026-10-11, it is affordable for individual lab kits and replacement-stock classrooms.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho W9816G6JH-6 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | W9816G6JH-6I | W9816G6JH-5 | MT48LC16M16A2TG-6 | IS42S16160B-6TL | AS4C16M16SA-6TIN |
|---|---|---|---|---|---|---|
| Brand | Winbond | Winbond | Winbond | Micron Technology | ISSI | Alliance Memory |
| Package | 50-TSOP II | 50-TSOP II - same | 50-TSOP II - same | 50-TSOP II - same | 50-TSOP II - same | 50-TSOP II - same |
| Density | 16 Mbit (2 MB) | 16 Mbit | 16 Mbit | 16 Mbit | 16 Mbit | 16 Mbit |
| Clock Frequency (Max) | 166 MHz | 166 MHz | 200 MHz (+20%) | 166 MHz | 166 MHz | 166 MHz |
| Access Time | 5 ns | 5 ns | 4 ns | 6 ns | 5 ns | 6 ns |
| Operating Temperature | Commercial (0C to +70C) | Industrial (-40C to +85C) | Commercial (0C to +70C) | Commercial / Industrial | Commercial / Industrial | Industrial |
| Operating Voltage | 3.3 V LVTTL | 3.3 V LVTTL | 3.3 V LVTTL | 3.3 V LVTTL | 3.3 V LVTTL | 3.3 V LVTTL |
| Banks / Bus Width | 2 banks / x16 | 2 banks / x16 | 2 banks / x16 | 4 banks / x16 | 2 banks / x16 | 4 banks / x16 |
Bảo phân biệt quan trọng
- Higher clock frequency (-5 variant) drop-in (vsW9816G6JH-5)
- Industrial-temperature drop-in (vsW9816G6JH-6I)
- Cross-brand 16 Mb SDR SDRAM compatible sources (vsMT48LC16M16A2TG-6 / IS42S16160B-6TL / AS4C16M16SA-6TIN)
Ghi chú thiết kế
Place VCC and VCCQ decoupling capacitors within 5 mm of each supply pin, using 0.1 uF ceramic in parallel with 10 uF bulk per the Winbond W9816G6JH datasheet reference board. Maintain a continuous ground plane beneath the 50-TSOP II footprint and route CLK with 50 ohm characteristic impedance matched to within ±10% to avoid setup/hold violations at 166 MHz.
Match the CLK, /RAS, /CAS, /WE, /CS, and address bus traces within ±25 ps to keep timing margin at the 5 ns column access budget. Place a series 33 ohm damping resistor near the host controller on the CLK line to suppress overshoot, and route DQM lines alongside their associated DQ byte to minimize skew.
Do not assume all -6 grade SDRAMs have identical AC timing - Micron MT48LC16M16A2TG-6 specifies 6 ns access while Winbond W9816G6JH-6 specifies 5 ns, and the host controller's CAS latency setting must match the slower grade. Also confirm the bank-address count: Winbond uses 2 banks but Micron and Alliance use 4 banks at the same density, which affects refresh and mode-register programming.
Estimated: W9816G6JH-6 active current at 166 MHz is roughly 70-90 mA per the Winbond datasheet, so a 3.3 V LDO capable of 150 mA continuous (e.g., TPS7A2450DBVR) provides comfortable margin for one bank plus refresh overhead. In self-refresh mode current drops to ~1-2 mA, making the part suitable for battery-backed designs where the host controller drops the CKE pin during deep sleep.
Thông tin tuân thủ
Compliance status not stated in verified web data; confirm with Winbond distributor (DigiKey/Mouser) at order entry. W9816G6JH family is marked NRND by Winbond - the W9816G6JH-6K variant may have additional automotive/industrial screening per the Winbond DDR/SDR online catalog.
