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Winbond Electronics Corporation W9816G6JH-7
- Part No.:
- W9816G6JH-7
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 50-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
W9816G6JH-7.pdf
- Description:
- IC DRAM 16MBIT LVTTL 50TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:4,884
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Product details
Overview
W9816G6JH-7 from Winbond is a 512K × 2 banks × 16-bit synchronous DRAM (SDRAM) operating at up to 143 MHz with CAS Latency 3, 2.7–3.6 V supply, LVTTL interface, and 50-pin TSOP II package. It delivers 200M words/sec peak bandwidth and supports burst lengths of 1/2/4/8/full page for embedded main memory in industrial controllers and legacy computing systems.
For engineers reviewing the W9816G6JH-7 datasheet, W9816G6JH-7 pinout, W9816G6JH-7 application, or W9816G6JH-7 equivalent, key selection criteria include its -7 speed grade (143 MHz/CL3), industrial-grade thermal range (0°C to 70°C), self-refresh current (≤2 mA), TSOP II mechanical compatibility, and LVTTL-level command/data timing compliance.
Technical Context
This SDRAM implements dual-bank interleaving to hide precharge latency and uses a programmable Mode Register to configure burst type (sequential/interleaved), burst length, and CAS latency. Its command decoder interprets RAS/CAS/WE/CS combinations on CLK rising edges to execute bank activate, read/write, auto-precharge, self-refresh, and power-down operations.
It supports full-page, burst-stop, and interruptible access modes - including read-write/read-read interleave - with strict tRCD (20 ns), tRP (20 ns), and tRC (60 ns) timing constraints. The device requires eight CBR refresh cycles post-initialization and maintains data integrity during clock suspend or power-down modes when CKE is controlled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 524,288 words × 2 banks × 16 bits = 16 Mbit total capacity |
| Max Clock Frequency | 143 MHz - defines maximum bus throughput and system timing margin |
| CAS Latency | CL = 3 - determines minimum read-to-data-valid delay (3 × tCK) |
| Burst Length | 1, 2, 4, 8, or full page - controls sequential column access efficiency per command |
| Supply Voltage | 2.7 V to 3.6 V - compatible with 3.3 V LVTTL logic families and tolerant of rail variation |
| Self-Refresh Current | ≤2 mA - enables low-power retention during standby without external refresh controller |
| Operating Temperature | 0°C to 70°C - validated for commercial-grade industrial control and instrumentation |
| Package | 50-pin TSOP II, 400 mil - surface-mount compatible with standard PCB reflow profiles |
Pinout & Package
W9816G6JH-7 is housed in a 50-pin, 400-mil TSOP II package with lead-free, RoHS-compliant construction. Power and ground pins are segregated (VDD/VSS for core logic; VDDQ/VSSQ for I/O buffers) to minimize switching noise coupling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A10 | Address Input | Multiplexed row/column address lines; A0–A10 for row, A0–A7 for column |
| BA | Bank Select | Selects one of two internal banks during activate or column access |
| DQ0–DQ15 | Data I/O | 16-bit bidirectional data bus with separate UDQM/LDQM masking control |
| CS, RAS, CAS, WE | Command Control | Four active-low command inputs decoded synchronously on CLK rising edge |
| CLK, CKE | Clock Interface | CLK provides timing reference; CKE gates clock domain entry into power-down/self-refresh |
| UDQM / LDQM | I/O Mask | High-Z output enable (read) or write-block (write) with zero-latency assertion |
| VDD / VSS | Core Power/Ground | Supplies logic circuitry and input buffers; must ramp simultaneously during power-up |
| VDDQ / VSSQ | I/O Power/Ground | Isolated supply/ground for DQ drivers to improve signal integrity and noise immunity |
| NC | No Connect | Pins 33 and 37 are unconnected; must remain floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank interleaving | Enables concurrent row activation across banks to eliminate tRC dead time between page accesses |
| Programmable Mode Register | Allows runtime configuration of burst length, CAS latency, and burst order without hardware change |
| Auto-precharge support | Automatically initiates bank precharge after burst completion when A10 = high, reducing command overhead |
| LVTTL-compatible interface | Direct interfacing with 3.3 V microcontrollers, FPGAs, and ASICs without level-shifting circuitry |
| Self-refresh mode | Maintains data integrity during extended sleep states using only internal oscillator, no external refresh needed |
| Power-down and clock suspend | Reduces active power by gating internal clocks while preserving state for rapid wake-up |
Applications
| Industrial PLC Memory | Legacy PC BIOS Storage |
|---|---|
Use Scenario: Real-time data logging and program execution in programmable logic controllers requiring deterministic memory access. IC Role / Device Role / Timing Role: Primary working memory for firmware execution and I/O buffer storage with burst-mode efficiency. Use Value: Dual-bank interleaving reduces average access latency by overlapping row activation and column read cycles. | Use Scenario: Storing boot code and configuration tables in legacy x86-based industrial PCs with SDRAM controllers. IC Role / Device Role / Timing Role: Main system memory mapped at fixed address space, accessed via standard SDRAM controller IP. Use Value: CL3 timing and 143 MHz operation meet Intel 440BX chipset SDRAM interface requirements. |
| Medical Instrumentation Buffer | Network Edge Router Cache |
Use Scenario: Temporary waveform capture and processing buffer in portable ECG and ultrasound devices. IC Role / Device Role / Timing Role: High-bandwidth data staging memory between ADC/DAC and ARM Cortex-M7 processor. Use Value: Full-page burst mode enables single-command transfer of 512-byte sensor frames with minimal CPU intervention. | Use Scenario: Packet buffering in low-cost Layer 2 Ethernet switches with integrated SDRAM controllers. IC Role / Device Role / Timing Role: Shared packet memory supporting simultaneous ingress/egress queue management. Use Value: Auto-precharge capability simplifies memory arbitration logic by eliminating explicit precharge commands. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SDRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IS42S16100E-7BLI | Same density (16 Mbit), 54-pin TSOP, 143 MHz/CL3, but requires 3.3 V only (no 2.7–3.6 V range) | Designed for automotive-grade operation (-40°C to 85°C); wider temp range than W9816G6JH-7 | Choose IS42S16100E-7BLI if extended temperature support and tighter voltage tolerance are required. |
| MT48LC16M16A2P-75 | 16 Mbit, 54-pin TSOP, 133 MHz/CL3, 3.3 V only; higher tRC (70 ns vs. 60 ns) and lower max frequency | JEDEC-standard part with broader ecosystem support but slower timing and less flexible voltage | Choose MT48LC16M16A2P-75 if JEDEC compliance and long-term vendor availability outweigh speed and voltage flexibility. |
Compared with IS42S16100E-7BLI and MT48LC16M16A2P-75, W9816G6JH-7 offers wider supply voltage tolerance (2.7–3.6 V), faster tRC (60 ns), and commercial-temperature optimization - making it preferable for cost-sensitive industrial designs where voltage regulation margin and timing headroom are critical.
Availability
W9816G6JH-7 is available at Aetrix Electronics and suitable for industrial PLCs, legacy PC BIOS modules, medical instrumentation, network edge routers, and embedded controller applications requiring stable component supply across multi-year production cycles.
Supply support for W9816G6JH-7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Winbond Electronics is a Taiwan-based semiconductor company specializing in memory ICs, flash memory, and trusted computing solutions.
The W9816G6JH series belongs to Winbond's legacy SDRAM product line, designed specifically for cost-optimized, pin-compatible replacement of aging SDRAM in industrial and embedded computing platforms.
FAQ
What is the maximum operating frequency of the W9816G6JH-7?
The W9816G6JH-7 is rated for a maximum clock frequency of 143 MHz with CAS Latency 3. This speed grade is validated under recommended DC operating conditions (2.7–3.6 V, 0°C to 70°C) and meets all AC timing specifications including tRCD = 20 ns, tRP = 20 ns, and tRC = 60 ns. Operation above 143 MHz is not guaranteed and may result in timing violations or data corruption.
Does the W9816G6JH-7 support both sequential and interleaved burst modes?
Yes, the W9816G6JH-7 supports both sequential and interleaved burst addressing modes, which are selected via the Mode Register. Sequential mode increments column addresses linearly (e.g., n, n+1, n+2), while interleaved mode toggles address bits (e.g., A0, A1, A2) to optimize cache-line alignment. The W9816G6JH-7 implements this through internal address counter logic and requires proper MR initialization before burst operations.
What is the self-refresh current specification for the W9816G6JH-7?
The W9816G6JH-7 has a maximum self-refresh current of 2 mA, measured under standard operating conditions (VDD = 3.3 V, TA = 25°C). This value ensures low-power data retention during extended idle periods without external refresh circuitry. The W9816G6JH-7 enters self-refresh upon receiving the dedicated command (CS=RAS=CAS=WE=low, CKE=low) and exits when CKE returns high after tXSR delay.
Can the W9816G6JH-7 be used in place of the W9816G6JH-6I?
No - the W9816G6JH-7 is rated for 0°C to 70°C operation, whereas the W9816G6JH-6I is specified for -40°C to 85°C industrial temperature range. Although both share identical electrical specs (166 MHz/CL3 for -6I, 143 MHz/CL3 for -7), substituting W9816G6JH-7 in a design qualified for -40°C operation risks functional failure below 0°C. The W9816G6JH-7 is not a drop-in replacement for W9816G6JH-6I in extended-temperature environments.
How many refresh cycles does the W9816G6JH-7 require per 32 ms?
The W9816G6JH-7 requires 2,048 refresh cycles every 32 ms, corresponding to a refresh interval of tREF = 15.625 µs per row. This is implemented via CBR (CAS-before-RAS) auto-refresh commands issued by the memory controller. The W9816G6JH-7 does not support hidden refresh; each refresh cycle consumes one clock period and suspends normal access during execution.
W9816G6JH-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- -
- Package/Case:
- 50-TSOP (0.400", 10.16mm Width)
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- DRAM
- Technology:
- SDRAM
- Memory Size:
- 16Mbit
- Memory Organization:
- 1M x 16
- Memory Interface:
- LVTTL
- Clock Frequency:
- 143 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 5 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 50-TSOP II
W9816G6JH-7 FAQ
1.How can I place an order for W9816G6JH-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for W9816G6JH-7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for W9816G6JH-7 reliable?
The price and inventory of W9816G6JH-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W9816G6JH-7 is usually 5 days.
3.What payment methods are accepted for W9816G6JH-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W9816G6JH-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W9816G6JH-7?
W9816G6JH-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W9816G6JH-7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for W9816G6JH-7?
For technical support, including W9816G6JH-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W9816G6JH-7 requirements.
6.How does Aetrix verify that W9816G6JH-7 is sourced from the original manufacturer or authorized distributors?
All W9816G6JH-7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that W9816G6JH-7 meets industry standards.
7.What is the process for return or replacement of W9816G6JH-7?
All W9816G6JH-7 units undergo pre-shipment inspection (PSI). If there is an issue with W9816G6JH-7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The W9816G6JH-7 part is unused and in its original packaging.
Return procedure for W9816G6JH-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W9816G6JH-7 Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
Microchip Technology
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24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
STMicroelectronics
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
Microchip Technology
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AT24C04C-SSHM-T
Microchip Technology
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24LC01BT-I/SN
Microchip Technology
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24AA02UIDT-I/OT
Microchip Technology
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AT24C08C-STUM-T
Microchip Technology
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