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Renesas 71V3558S100PFG
- Part No.:
- 71V3558S100PFG
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 100-LQFP
- Datasheet:
-
71V3558S100PFG.pdf
- Description:
- IC SRAM 4.5MBIT PARALLEL 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,880
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Product details
Overview
71V3558S100PFG from IDT (now Renesas) is a 3.3V synchronous ZBT™ SRAM with 128K × 36-bit organization (4.5 Mbit), 166 MHz operation, 3.5 ns clock-to-data access, zero bus turnaround architecture, and pipelined outputs in a 100-pin TQFP package. It enables high-throughput memory interfacing in network packet buffers and telecom line cards.
For engineers reviewing the 71V3558S100PFG datasheet, 71V3558S100PFG pinout, 71V3558S100PFG application, or 71V3558S100PFG equivalent, key selection criteria include ZBT™ burst timing, 4-word interleaved/linear burst capability, individual byte write control (BW1–BW4), 3.3V I/O compatibility, and industrial temperature support (–40°C to +85°C).
Technical Context
The 71V3558S100PFG implements a fully synchronous, clock-edge-triggered architecture with address/control/data registers sampled on the positive CLK edge. Its ZBT™ feature eliminates dead cycles between read/write transitions via internal burst counter and ADV/LD-controlled address loading or incrementing.
It supports dual configuration modes: 128K × 36-bit (primary for this part) and 256K × 18-bit (via pin strapping). The device includes three chip enables (CE1, CE2, CE2), asynchronous OE, synchronous CEN, and optional IEEE 1149.1 JTAG boundary scan (not implemented in "S" version).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 128K × 36-bit (4.5 Mbit); supports 256K × 18-bit mode via pin configuration |
| Max Clock Frequency | 166 MHz - enables 166 MT/s throughput with full pipelining |
| Clock-to-Data Access | 3.5 ns - defines minimum latency from CLK edge to valid Q output |
| Burst Capability | 4-word linear or interleaved burst - reduces address bus traffic for sequential accesses |
| Supply Voltage | VDD = 3.3 V ±5%, VDDQ = 3.3 V ±5% - requires separate core/I/O rails |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments without derating |
| Package | 100-pin TQFP (14 mm × 20 mm, JEDEC standard) - surface-mount, reflow-compatible |
Pinout & Package
71V3558S100PFG is packaged in a JEDEC-standard 100-pin thin quad flatpack (TQFP), 14 mm × 20 mm body, 0.5 mm pitch. Pin 64 supports ZZ (sleep mode) on latest die revision; pins 14/16/66 tolerate VIH-level inputs without direct VDD connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | Synchronous 18-bit address bus; A0–A16 used for 128K×36 mode |
| CLK | System Clock Input | Positive-edge-triggered master clock; all synchronous registers sample on rising edge |
| R/W | Read/Write Control | Synchronous signal defining cycle type; determines data direction two cycles later |
| ADV/LD | Burst Address Control | Low = load external address; High = advance internal burst counter |
| LBO | Burst Order Select | Static input: Low = linear burst, High = interleaved burst sequence |
| BW1–BW4 | Byte Write Enables | Active-low per-byte controls for 36-bit word (I/O[0:7]/P1, [8:15]/P2, [16:23]/P3, [24:31]/P4) |
| CE1, CE2, CE2 | Chip Enables | Three independent enables: CE1/CE2 active-low, CE2 active-high; any false deselects device |
| OE | Output Enable | Asynchronous; drives I/O pins to high-Z when high - no timing control needed |
| ZZ | Sleep Mode Input | Active-high synchronous entry into low-power retention mode (pin 64 on TQFP) |
| I/O0–I/O31, I/OP1–I/OP4 | Data I/O | 36-bit bidirectional synchronous bus; registered input/output paths |
Key Features
| Feature | Design Value |
|---|---|
| ZBTTM Architecture | Eliminates bus turnaround dead cycles between reads and writes - enables back-to-back transactions at full speed |
| Pipelined Output Buffer | Internally synchronized OE eliminates need for external OE timing control - simplifies system timing closure |
| 4-Word Burst Counter | Reduces address bus activity by 75% for sequential accesses - improves bandwidth efficiency in packet buffering |
| Individual Byte Write | Independent BW1–BW4 control allows partial-word writes without read-modify-write - critical for protocol header updates |
| Three Chip Enables | Enables depth expansion across multiple devices without external logic - supports scalable memory subsystems |
Applications
| Network Packet Buffers | Telecom Line Cards |
|---|---|
Use Scenario: Storing and forwarding variable-length Ethernet/IP packets in switching ASIC interfaces. IC Role / Device Role / Timing Role: High-speed, low-latency buffer memory with zero-turnaround burst reads/writes for ingress/egress queues. Use Value: 3.5 ns clock-to-data and 166 MHz operation enable line-rate processing of 10 Gbps+ data streams. | Use Scenario: Frame buffering in SONET/SDH add-drop multiplexers and optical transport equipment. IC Role / Device Role / Timing Role: Synchronous SRAM providing deterministic latency for time-critical framing and overhead processing. Use Value: Industrial temperature range (–40°C to +85°C) and robust 3.3V I/O ensure reliability in uncontrolled telecom cabinets. |
| High-Performance Computing Caches | Industrial PLC Data Logging |
Use Scenario: L2/L3 cache tag storage and temporary instruction staging in FPGA-based compute accelerators. IC Role / Device Role / Timing Role: Pipelined, registered interface synchronizes cleanly with FPGA fabric clocks and avoids metastability. Use Value: Fully synchronous design with CEN and three CE pins enables precise power/cycle gating in multi-core systems. | Use Scenario: Real-time event logging and recipe storage in programmable logic controllers with deterministic response. IC Role / Device Role / Timing Role: Non-volatile-retentive buffer (with external backup) for critical process data during brownouts. Use Value: ZZ sleep mode reduces active current while maintaining data integrity - extends battery-backed operation time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C1371DV33-166AXC | 128K × 32-bit, 166 MHz, 3.3V; no ZZ sleep mode; different pinout (119-ball BGA only) | Lacks byte-write granularity (32-bit vs 36-bit) and sleep mode - unsuitable for power-constrained or protocol-aware designs | Select if BGA footprint preferred and 32-bit bus alignment acceptable; verify burst timing compatibility |
| AS7C33128P-15JCN | 128K × 32-bit, 15 ns async access; not synchronous/ZBT; 3.3V only | No pipelining, no burst counter, no zero-turnaround - cannot replace in high-speed synchronous systems | Only viable for cost-sensitive, non-timing-critical legacy upgrades where clocked operation is unnecessary |
Compared with CY7C1371DV33-166AXC and AS7C33128P-15JCN, the 71V3558S100PFG uniquely delivers 36-bit ZBT™ operation with byte-write control and industrial-temperature sleep mode in TQFP - essential for telecom and embedded networking where timing determinism and power management intersect.
Availability
71V3558S100PFG is available at Aetrix Electronics and suitable for network packet buffers, telecom line cards, and industrial PLC data logging requiring stable component supply across extended product lifecycles.
Supply support for 71V3558S100PFG 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
IDT (Integrated Device Technology), now part of Renesas Electronics, is a fabless semiconductor company specializing in timing, memory interface, and RF solutions for high-performance digital systems.
The 71V3558S100PFG belongs to IDT's ZBT™ SRAM product line, engineered specifically for zero-latency memory subsystems in networking, telecommunications, and real-time embedded applications demanding deterministic burst performance.
FAQ
What memory configuration does the 71V3558S100PFG support?
The 71V3558S100PFG is configured as 128K × 36-bit (4.5 Mbit) in its default TQFP implementation. It shares a family architecture with 256K × 18-bit variants, but pin strapping and internal decoding fix the 71V3558S100PFG to the 128K × 36-bit organization per the datasheet functional description and pin configuration diagrams.
Does the 71V3558S100PFG support JTAG boundary scan?
No, the 71V3558S100PFG ("S" suffix) does not implement JTAG boundary scan. The optional IEEE 1149.1 interface is only available in the "SA" variant (e.g., 71V3558SA), as confirmed by pin function tables indicating TMS/TDI/TCK/TDO/TRST as NC (no connect) for the "S" version.
How does the ZBTTM feature improve system performance in the 71V3558S100PFG?
The ZBTTM (Zero Bus Turnaround) feature in the 71V3558S100PFG eliminates idle cycles between consecutive read and write operations. By internally managing bus direction and timing, it enables back-to-back transactions at full 166 MHz - increasing effective bandwidth by up to 30% compared to conventional synchronous SRAMs requiring turnaround wait states.
What is the role of the ADV/LD and LBO pins in the 71V3558S100PFG?
In the 71V3558S100PFG, ADV/LD is a synchronous control pin: low loads a new external address, high advances the internal burst counter. LBO is a static input selecting burst order - low enables linear addressing (0,1,2,3), high enables interleaved (0,2,1,3) - both directly determine burst sequence behavior per the functional timing diagrams.
Can the 71V3558S100PFG operate in a reduced-power state?
Yes, the 71V3558S100PFG supports low-power operation via its synchronous ZZ (sleep mode) input. When ZZ is driven high, the internal clock is gated and the device enters its lowest power consumption state while guaranteeing data retention - a key capability for energy-sensitive telecom and industrial applications.
71V3558S100PFG 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 (ZBT)
- Memory Size:
- 4.5Mbit
- Memory Organization:
- 256K x 18
- Memory Interface:
- Parallel
- Clock Frequency:
- 100 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 5 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)
71V3558S100PFG FAQ
1.How can I place an order for 71V3558S100PFG through Aetrix?
Please submit a Request for Quotation (RFQ) for 71V3558S100PFG 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 71V3558S100PFG reliable?
The price and inventory of 71V3558S100PFG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71V3558S100PFG is usually 5 days.
3.What payment methods are accepted for 71V3558S100PFG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71V3558S100PFG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71V3558S100PFG?
71V3558S100PFG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71V3558S100PFG 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 71V3558S100PFG?
For technical support, including 71V3558S100PFG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71V3558S100PFG requirements.
6.How does Aetrix verify that 71V3558S100PFG is sourced from the original manufacturer or authorized distributors?
All 71V3558S100PFG 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 71V3558S100PFG meets industry standards.
7.What is the process for return or replacement of 71V3558S100PFG?
All 71V3558S100PFG units undergo pre-shipment inspection (PSI). If there is an issue with 71V3558S100PFG, 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 71V3558S100PFG part is unused and in its original packaging.
Return procedure for 71V3558S100PFG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
71V3558S100PFG Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
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24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
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AT24CS02-SSHM-T
Microchip Technology
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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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