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Renesas 71V016SA20BFI
- Part No.:
- 71V016SA20BFI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-LFBGA
- Datasheet:
-
71V016SA20BFI.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 48CABGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,899
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Product details
Overview
71V016SA20BFI from Renesas Electronics is a 64K × 16-bit (1 Mbit), 3.3 V CMOS static RAM with 20 ns read/write cycle time, industrial temperature range (–40°C to +85°C), and LVTTL-compatible bidirectional I/O. It features separate upper/lower byte enables (BHE/BLE), single-chip select (CS) plus output enable (OE), and operates fully asynchronously without clocks or refresh-used in real-time control buffers, FPGA configuration storage, and legacy bus-based embedded systems.
For engineers reviewing the 71V016SA20BFI datasheet, 71V016SA20BFI pinout, 71V016SA20BFI application, or 71V016SA20BFI equivalent, key selection criteria include industrial-grade timing stability, FBGA-48 package compatibility, byte-selectable write capability, and low-standby current (30 mA max) under dynamic standby conditions.
Technical Context
The 71V016SA20BFI implements a fully static asynchronous memory architecture with no internal clocks or refresh circuitry. Its address decoding, sense amplifiers, and write drivers are all CMOS-based, supporting independent read/write cycles via CS, WE, OE, BHE, and BLE control logic.
Timing is defined by overlapping control signals: read access (tAA ≤ 20 ns), chip-select access (tACS ≤ 20 ns), and write pulse width (tWP ≥ 12 ns). Output enable propagation delay (tOE ≤ 8 ns) and high-impedance transition times (tOHZ ≤ 8 ns) ensure tight bus timing control in multiplexed data environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 64K × 16-bit (1,048,576 bits); supports word-wide (16-bit) or byte-wide (8-bit) data transfers |
| Access/Cycle Time | 20 ns; guarantees full read/write completion within one 50 MHz bus cycle |
| Supply Voltage | 3.15–3.6 V; compatible with standard 3.3 V LVTTL logic rails and noise margins |
| Operating Temperature | –40°C to +85°C; qualified for industrial environments without derating |
| Standby Current | 30 mA max (ISB); enables low-power hold mode during CPU idle states |
| I/O Interface | LVTTL-compatible bidirectional data (I/O0–I/O15); eliminates level-shifter requirements |
| Control Pins | Dedicated CS, OE, WE, BHE, BLE - enables selective byte writes and output gating without external logic |
Pinout & Package
71V016SA20BFI is packaged in a 48-ball plastic FBGA (BFG48, 7 mm × 7 mm, 0.8 mm pitch), JEDEC-compliant with bottom-side ball layout. The package supports automated PCB assembly and thermal performance suitable for industrial board densities.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A15 | Address Inputs | 16-bit address bus; selects one of 64K memory locations |
| I/O0–I/O7 | Low-Byte Data I/O | Bidirectional 8-bit data path enabled only when BLE = L |
| I/O8–I/O15 | High-Byte Data I/O | Bidirectional 8-bit data path enabled only when BHE = L |
| CS | Chip Select | Active-low global enable; device enters standby when high |
| OE | Output Enable | Active-low gate for output drivers; overrides WE/BHE/BLE during reads |
| WE | Write Enable | Active-low signal initiating write cycle; latches data on rising edge |
| BHE | High-Byte Enable | Active-low control for I/O8–I/O15; enables 8-bit high-byte writes |
| BLE | Low-Byte Enable | Active-low control for I/O0–I/O7; enables 8-bit low-byte writes |
| VDD | Power Supply | 3.3 V core and I/O supply; requires local decoupling per JEDEC FBGA guidelines |
| VSS | Ground | Common reference for all inputs, outputs, and internal circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Byte-selectable write operation | Independent BHE/BLE pins allow 8-bit partial writes without read-modify-write overhead |
| Zero-power standby mode | ISB1 = 10 µA typical; maintains data integrity with no clock or refresh needed |
| Fast output enable response | tOE ≤ 8 ns ensures minimal bus turnaround latency in shared-memory systems |
| Industrial temperature qualification | Full AC/DC specs guaranteed across –40°C to +85°C, not just extended screening |
| LVTTL-compatible I/O | No external level shifters required when interfacing with 3.3 V FPGAs, microcontrollers, or ASICs |
Applications
| Industrial PLC Data Buffer | FPGA Configuration Storage |
|---|---|
Use Scenario: Storing real-time I/O status and motion control parameters in programmable logic controllers operating in factory-floor environments. IC Role / Device Role / Timing Role: Asynchronous SRAM buffer between CPU and fieldbus interface; provides deterministic 20 ns read/write for jitter-sensitive motion profiles. Use Value: Industrial temperature rating and byte-enable support reduce firmware complexity and eliminate external latch logic in dual-port emulation. | Use Scenario: Holding configuration bitstreams for Xilinx Spartan or Intel Cyclone FPGAs during power-up and dynamic reconfiguration. IC Role / Device Role / Timing Role: Non-volatile configuration loader memory; accessed once at startup using parallel bus interface with precise tAA timing. Use Value: 20 ns access time meets FPGA configuration clock requirements; FBGA-48 footprint matches common FPGA carrier board layouts. |
| Legacy Bus-Based Instrumentation | Medical Imaging Frame Buffer |
Use Scenario: Serving as scratchpad memory in IEEE-488 (GPIB) or ISA-bus test equipment where bus timing is fixed and non-negotiable. IC Role / Device Role / Timing Role: Asynchronous memory mapped into 16-bit I/O space; responds to CS/OE/WE edges without wait-state insertion. Use Value: Pin-compatible replacement for obsolete IDT71V016 variants; same SOJ/TSOP/FBGA options simplify legacy board rework. | Use Scenario: Temporary frame storage in portable ultrasound or digital X-ray units requiring rapid pixel data capture and display refresh. IC Role / Device Role / Timing Role: Dual-port-emulated buffer using BHE/BLE for interleaved read/write; sustains burst throughput without DRAM refresh overhead. Use Value: Low ISB current extends battery life during idle periods; industrial temp range supports sterilization and clinical ambient conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed static RAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY62167EV30LL-20BVXI | Same 64K × 16 organization, 20 ns speed, but uses 3.0–3.6 V supply and offers 44-pin TSOP only (no FBGA) | Lacks industrial-grade FBGA option; limited to surface-mount boards with TSOP footprints | Select when retrofitting legacy TSOP-based designs and 3.0 V tolerance is required |
| AS6C1008-20TIN | 1 Mbit (128K × 8) organization, 20 ns speed, 2.7–3.6 V supply, 32-pin SOIC package | 8-bit data bus only; requires two devices for 16-bit width; no byte-enable pins | Select only for cost-sensitive 8-bit systems where board area and pin count outweigh byte-select flexibility |
Compared with CY62167EV30LL-20BVXI and AS6C1008-20TIN, the 71V016SA20BFI uniquely delivers industrial-qualified FBGA packaging, true 16-bit word access with independent byte enables, and guaranteed 20 ns timing across full temperature range-enabling drop-in replacement in space-constrained, high-reliability embedded systems without layout changes.
Availability
71V016SA20BFI is available at Aetrix Electronics and suitable for industrial PLC data buffering, FPGA configuration storage, and legacy bus-based instrumentation requiring stable component supply across long production lifecycles.
Supply support for 71V016SA20BFI 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 is a global semiconductor leader delivering microcontrollers, analog, power, and memory solutions for automotive, industrial, and IoT applications.
The 71V016SA series was developed as a high-reliability, pin-compatible evolution of IDT's legacy SRAM portfolio-targeting industrial control, test equipment, and FPGA-based systems needing deterministic, low-latency memory with zero refresh overhead.
FAQ
What is the maximum operating frequency supported by the 71V016SA20BFI?
The 71V016SA20BFI does not operate on a clock; it is an asynchronous SRAM. Its 20 ns read/write cycle time corresponds to a maximum effective bus rate of 50 MHz when used in systems with zero wait states. Timing compliance depends on meeting setup/hold requirements (e.g., tAS = 0 ns, tDH = 0 ns) rather than clock frequency.
Does the 71V016SA20BFI require external refresh circuitry?
No, the 71V016SA20BFI is a fully static RAM and requires no refresh cycles or clocks. Data retention is maintained indefinitely as long as VDD remains within specification (3.15–3.6 V) and temperature stays within –40°C to +85°C. This eliminates refresh controller logic and associated timing constraints in system design.
Can the 71V016SA20BFI be used with a 3.0 V supply?
No-the 71V016SA20BFI is specified for 3.15–3.6 V operation only. At 3.0 V, DC parameters such as VOH (min. 2.4 V) and VOL (max. 0.4 V) fall outside guaranteed limits, and AC timing (e.g., tAA ≤ 20 ns) is not assured. Use CY62167EV30LL-20BVXI if 3.0 V operation is required.
What is the function of the BHE and BLE pins on the 71V016SA20BFI?
The BHE (high-byte enable) and BLE (low-byte enable) pins on the 71V016SA20BFI independently gate the upper (I/O8–I/O15) and lower (I/O0–I/O7) data bytes during write operations. When asserted low, each enables its respective byte lane; both must be low for full 16-bit writes. This eliminates need for external byte-mask logic in partial-write applications.
Is the 71V016SA20BFI RoHS-compliant and halogen-free?
Yes-the 71V016SA20BFI is a green part (per ordering code suffix 'G') and complies with RoHS Directive 2011/65/EU and JEDEC JS709D for halogen content. Lead-free soldering profiles and moisture sensitivity level (MSL) 3 are documented in Renesas' official packaging specifications for BFG48.
71V016SA20BFI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 48-LFBGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Asynchronous
- Memory Size:
- 1Mbit
- Memory Organization:
- 64K x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 20ns
- Access Time:
- 20 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-CABGA (7x7)
71V016SA20BFI FAQ
1.How can I place an order for 71V016SA20BFI through Aetrix?
Please submit a Request for Quotation (RFQ) for 71V016SA20BFI 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 71V016SA20BFI reliable?
The price and inventory of 71V016SA20BFI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71V016SA20BFI is usually 5 days.
3.What payment methods are accepted for 71V016SA20BFI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71V016SA20BFI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71V016SA20BFI?
71V016SA20BFI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71V016SA20BFI 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 71V016SA20BFI?
For technical support, including 71V016SA20BFI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71V016SA20BFI requirements.
6.How does Aetrix verify that 71V016SA20BFI is sourced from the original manufacturer or authorized distributors?
All 71V016SA20BFI 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 71V016SA20BFI meets industry standards.
7.What is the process for return or replacement of 71V016SA20BFI?
All 71V016SA20BFI units undergo pre-shipment inspection (PSI). If there is an issue with 71V016SA20BFI, 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 71V016SA20BFI part is unused and in its original packaging.
Return procedure for 71V016SA20BFI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
71V016SA20BFI Tags
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