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Renesas 71V67703S80PFG
- Part No.:
- 71V67703S80PFG
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 100-LQFP
- Datasheet:
-
71V67703S80PFG.pdf
- Description:
- IC SRAM 9MBIT PARALLEL 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,609
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Product details
Overview
71V67703S80PFG from IDT (now Renesas) is a 256K × 36-bit, 3.3V synchronous SRAM with flow-through outputs, 8.0 ns access time at 100 MHz, burst counter, and single-cycle deselect. It supports interleaved/linear burst modes via LBO input and features self-timed write with global/byte write control. Used in high-bandwidth networking buffers and cache-coherent subsystems requiring deterministic latency.
For engineers reviewing the 71V67703S80PFG datasheet, 71V67703S80PFG pinout, 71V67703S80PFG application, or 71V67703S80PFG equivalent, key selection criteria include burst mode timing compliance, 3.3V I/O compatibility, TQFP-100 package footprint, flow-through output architecture for zero-cycle read latency, and industrial-grade power-down (ZZ) support.
Technical Context
The 71V67703S80PFG implements a synchronous, clock-driven interface with registered address/data inputs and unregistered (flow-through) outputs - eliminating output register delay. Its internal burst counter advances on ADV=LOW, generating four consecutive addresses per initial access, with sequence order determined by LBO state (linear vs. interleaved).
Write operation is self-timed and configurable: GW enables full 36-bit writes, while BWE + BW1–BW4 allow independent 9-bit byte writes. Power management includes asynchronous ZZ-controlled sleep mode (IZZ ≤ 70 mA) and synchronous standby (ISB1 ≤ 70 mA), both preserving data retention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 256K × 36-bit (9Mbit); supports 512K × 18-bit via pin-compatible variant |
| Access Time / Max Clock | 8.0 ns / 100 MHz - guarantees sub-10ns read latency under commercial temp (0°C to +70°C) |
| Supply Voltages | VDD = 3.3 V ±5% (core), VDDQ = 3.3 V ±5% (I/O) - requires separate low-noise 3.3V rails |
| Burst Mode Control | LBO pin selects linear or interleaved 4-word burst sequence - no external counter needed |
| Output Architecture | Flow-through (no output register) - data valid tCD = 8.0 ns after CLK rise, enabling tight system timing budgets |
| Power-Down | Asynchronous ZZ input reduces ICC to ≤70 mA - retains data without clock or refresh |
| Package | JEDEC-standard 100-pin TQFP (14 mm × 20 mm) - compatible with standard SMT reflow profiles |
Pinout & Package
71V67703S80PFG is packaged in a 100-pin thin quad flatpack (TQFP), JEDEC MO-145, body size 14 mm × 20 mm, 0.5 mm pitch. Pin 1 marked by corner notch; top-side marking includes "71V67703S80PFG" and date code.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Inputs | Synchronous 19-bit address bus; latched on rising CLK edge when ADSP or ADSC asserted |
| CLK | System Clock Input | Single-ended CMOS clock; all synchronous operations referenced to rising edge |
| GW, BWE, BW1–BW4 | Write Control Inputs | GW enables full 36-bit write; BWE gates BWx; BW1–BW4 select four 9-bit bytes independently |
| ADSP / ADSC | Address Status Inputs | ADSP (processor) and ADSC (cache controller) load address register - mutually exclusive enable |
| ADV | Burst Address Advance | LOW advances internal burst counter; HIGH suspends burst - enables partial burst termination |
| LBO | Burst Order Select | DC-level input: LOW = linear burst (00→01→10→11), HIGH = interleaved (00→01→11→10) |
| OE | Asynchronous Output Enable | LOW enables I/O drivers; HIGH forces high-Z - usable for bus sharing without clock dependency |
| ZZ | Asynchronous Sleep Mode | HIGH disables internal clock and reduces ICC to ≤70 mA; data retained indefinitely |
| I/O0–I/O31, I/OP1–I/OP4 | Data I/O | 36-bit bidirectional bus: 32 data + 4 parity; flow-through outputs eliminate output register delay |
| VDD, VDDQ, VSS | Power/Ground | VDD (core), VDDQ (I/O), and VSS (ground) require local decoupling - 10× 0.1 µF + 2× 4.7 µF per supply |
Key Features
| Feature | Design Value |
|---|---|
| Flow-through output architecture | Eliminates output register delay - data valid tCD = 8.0 ns after CLK rise, critical for cycle-accurate timing |
| Self-timed write cycle | Internal timing logic resolves write completion without external wait-state generation or complex control sequencing |
| Single-cycle deselect | Device enters high-Z output state within one CLK cycle of CE/CS deassertion - prevents bus contention in multi-SRAM systems |
| Configurable burst order (LBO) | Hardware-selectable linear or interleaved 4-word burst - matches processor/cache line ordering without firmware overhead |
| Asynchronous ZZ sleep mode | Reduces power to ≤70 mA while retaining memory contents - enables rapid wake-up (<100 ns tZZR) without initialization |
Applications
| High-Speed Network Buffering | Cache-Coherent Multiprocessor Interconnect |
|---|---|
Use Scenario: Line-rate packet buffering in 10G Ethernet switch ASICs where backpressure must be resolved within fixed latency windows. IC Role / Device Role / Timing Role: Primary data buffer between MAC and switching fabric; provides deterministic 8.0 ns read access and burst-aligned writes. Use Value: Flow-through outputs and single-cycle deselect prevent pipeline stalls during burst-to-burst transitions, sustaining >95% bus utilization. | Use Scenario: Shared L3 cache directory in dual-core SoC with snooping coherency protocol requiring atomic 36-bit tag updates. IC Role / Device Role / Timing Role: Tag RAM storing cache line metadata; accessed synchronously with core clock and burst-aligned with cache line fills. Use Value: Byte-write enables (BW1–BW4) allow selective tag updates without disturbing adjacent entries, reducing write energy by 75% vs. full-word writes. |
| Real-Time Video Frame Store | Industrial PLC Motion Control Buffer |
Use Scenario: Frame buffering in broadcast-grade SDI video processors requiring glitch-free 4:2:2 YUV stream handling at 1080p60. IC Role / Device Role / Timing Role: Dual-port frame buffer (read/write ports time-multiplexed); uses burst reads for pixel line fetch and flow-through for real-time overlay insertion. Use Value: Linear burst mode (LBO=LOW) delivers sequential pixel data matching raster scan order, eliminating address calculation overhead in video DMA engines. | Use Scenario: Deterministic I/O mapping buffer in safety-critical PLC controllers where motion trajectory data must be updated within 1 µs jitter budget. IC Role / Device Role / Timing Role: Real-time data exchange buffer between FPGA motion engine and ARM host; accessed via synchronous burst reads/writes aligned to control loop period. Use Value: ZZ sleep mode enables power-gating during idle cycles while preserving trajectory buffers - meets IEC 61508 SIL-3 power integrity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C1371BV33-100AXC | 256K × 36-bit, 100 MHz, 3.3V, but uses pipelined (not flow-through) outputs - adds 1-cycle output latency | Less suitable for cycle-critical read-after-write scenarios; requires additional pipeline stage in controller logic | Select only if system design accommodates extra clock cycle in data path and prioritizes higher density over zero-latency reads |
| AS7C33256P-10JCN | 256K × 36-bit, 10 ns access, 3.3V, but lacks burst counter, LBO, and ZZ sleep - only supports single-word random access | Cannot implement burst transfers; requires external address sequencer for multi-word operations | Choose only for legacy designs without burst requirements and where lowest cost outweighs feature set and timing performance |
Compared with CY7C1371BV33-100AXC and AS7C33256P-10JCN, the 71V67703S80PFG uniquely delivers flow-through outputs for zero-cycle read latency, hardware-configurable burst order, and asynchronous sleep - making it optimal for real-time networking and motion control where deterministic timing and low-power idle states are mandatory.
Availability
71V67703S80PFG is available at Aetrix Electronics and suitable for high-speed network buffering, cache-coherent interconnects, real-time video frame storage, and industrial motion control applications requiring stable component supply across extended product lifecycles.
Supply support for 71V67703S80PFG 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
Renesas Electronics Corporation (formerly Integrated Device Technology, IDT) is a global semiconductor leader specializing in high-performance memory, timing, and connectivity solutions for infrastructure and industrial markets.
The 71V67703S80PFG belongs to IDT's high-speed synchronous SRAM product line, engineered specifically for deterministic-latency applications in networking, computing, and real-time control systems where burst throughput and power-aware operation are critical.
FAQ
What is the maximum operating frequency supported by the 71V67703S80PFG?
The 71V67703S80PFG supports up to 100 MHz clock frequency with guaranteed 8.0 ns access time under commercial temperature conditions (0°C to +70°C). This is validated by tCYC = 10 ns minimum and tCD = 8.0 ns maximum in the AC Electrical Characteristics table. Operation beyond 100 MHz is not characterized or guaranteed.
Does the 71V67703S80PFG support both linear and interleaved burst sequences?
Yes, the 71V67703S80PFG supports both linear and interleaved burst sequences via the LBO (Linear Burst Order) pin. When LBO = LOW, the device executes linear burst (00→01→10→11); when LBO = HIGH, it executes interleaved burst (00→01→11→10). This selection is static and must remain stable during burst operation.
How does the 71V67703S80PFG handle power-down and data retention?
The 71V67703S80PFG supports asynchronous power-down via the ZZ pin: asserting ZZ = HIGH reduces supply current to ≤70 mA (industrial grade) while guaranteeing full data retention. Recovery time tZZR is 100 ns minimum. No clock or external refresh is required during sleep mode.
What is the function of the ADV pin on the 71V67703S80PFG?
The ADV (Burst Address Advance) pin controls burst progression on the 71V67703S80PFG. When ADV = LOW on the rising CLK edge, the internal burst counter advances to the next address. When ADV = HIGH, burst advancement is suspended - allowing partial bursts or controlled multi-cycle data transfers without full sequence completion.
Can the 71V67703S80PFG perform byte-level writes, and how are they enabled?
Yes, the 71V67703S80PFG supports independent 9-bit byte writes using BW1–BW4 pins. These are gated by BWE: when BWE = LOW, active BWx signals enable corresponding 9-bit segments (BW1 → I/O0–7 + I/OP1, etc.). Any active byte write disables all outputs - ensuring bus integrity during partial writes.
71V67703S80PFG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 100-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Synchronous, SDR
- Memory Size:
- 9Mbit
- Memory Organization:
- 256K x 36
- Memory Interface:
- Parallel
- Clock Frequency:
- 100 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 8 ns
- Voltage - Supply:
- 3.135V ~ 3.465V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-TQFP (14x14)
71V67703S80PFG FAQ
1.How can I place an order for 71V67703S80PFG through Aetrix?
Please submit a Request for Quotation (RFQ) for 71V67703S80PFG 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 71V67703S80PFG reliable?
The price and inventory of 71V67703S80PFG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71V67703S80PFG is usually 5 days.
3.What payment methods are accepted for 71V67703S80PFG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71V67703S80PFG transactions.
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4.How is shipping managed for 71V67703S80PFG?
71V67703S80PFG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71V67703S80PFG 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 71V67703S80PFG?
For technical support, including 71V67703S80PFG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71V67703S80PFG requirements.
6.How does Aetrix verify that 71V67703S80PFG is sourced from the original manufacturer or authorized distributors?
All 71V67703S80PFG 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 71V67703S80PFG meets industry standards.
7.What is the process for return or replacement of 71V67703S80PFG?
All 71V67703S80PFG units undergo pre-shipment inspection (PSI). If there is an issue with 71V67703S80PFG, 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 71V67703S80PFG part is unused and in its original packaging.
Return procedure for 71V67703S80PFG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
71V67703S80PFG Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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