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Renesas 71V016SA20BF
- Part No.:
- 71V016SA20BF
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-LFBGA
- Datasheet:
-
71V016SA20BF.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 48CABGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,234
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Product details
Overview
71V016SA20BF 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/Os. It features separate byte enable (BHE/BLE), output enable (OE), and chip select (CS) for flexible memory access in embedded controllers and data acquisition systems.
For engineers reviewing the 71V016SA20BF datasheet, 71V016SA20BF pinout, 71V016SA20BF application, or 71V016SA20BF equivalent, key selection criteria include its 20 ns tRC timing, FBGA-48 (BFG48) package, 3.3 V single-supply operation, and support for high-speed word/byte-level reads and writes without refresh or clocks.
Technical Context
This device implements fully static asynchronous circuitry-no clocks or refresh required-and uses high-reliability CMOS technology optimized for low-power, high-speed operation. Its dual-byte enable architecture allows independent control of upper (I/O8–I/O15) and lower (I/O0–I/O7) data bytes during read/write cycles.
The 71V016SA20BF supports three distinct write control modes: CS-controlled, WE-controlled, and BHE/BLE-controlled, each with defined timing constraints (e.g., tWP = 12 ns min, tDW = 9 ns min). All inputs and outputs meet LVTTL voltage thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) and drive ±4 mA/±8 mA loads at VDD = 3.15–3.6 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 64K × 16-bit (1,048,576-bit total); enables 16-bit parallel data bus interfacing |
| Access/Cycle Time | 20 ns (tAA, tRC); guarantees deterministic latency for real-time buffer or cache applications |
| Supply Voltage | 3.3 V ±0.15 V (3.15–3.6 V); compatible with modern LVTTL and LVCMOS logic families |
| Operating Temperature | –40°C to +85°C; qualified for industrial-grade embedded systems without derating |
| I/O Interface | LVTTL-compatible bidirectional I/Os (VIH ≥ 2.0 V, VOL ≤ 0.4 V @ 8 mA); interoperable with FPGA and microcontroller GPIOs |
| Power Consumption | 120 mA dynamic ICC max, 30 mA ISB standby current; enables low-power sleep-mode operation |
| Package | 48-ball plastic FBGA (BFG48), 7 mm × 7 mm, 0.8 mm pitch; supports high-density PCB layouts |
Pinout & Package
71V016SA20BF is housed in a JEDEC-standard 48-ball plastic FBGA (BFG48) package with 7 mm × 7 mm footprint and 0.8 mm ball pitch. Pinout follows the PHG44/SOJ/TSOP-compatible functional mapping but physically implemented as ball grid array.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A15 | Address Inputs | 16-bit address bus; selects one of 64K memory locations; no internal latching |
| I/O0–I/O7 | Lower Byte Data I/O | Bidirectional 8-bit data path enabled by BLE; shares pins with address/data multiplexing not used |
| I/O8–I/O15 | Upper Byte Data I/O | Bidirectional 8-bit data path enabled by BHE; supports independent high/low byte writes |
| CS | Chip Select | Active-low global enable; places device in standby (ISB = 30 mA) when high |
| OE | Output Enable | Active-low control for output drivers; tOE = 8 ns max ensures fast read response |
| WE | Write Enable | Active-low write strobe; initiates write on falling edge with tWP ≥ 12 ns minimum pulse width |
| BLE | Low Byte Enable | Active-low; enables I/O0–I/O7 during byte writes; tBE = 8 ns max access delay |
| BHE | High Byte Enable | Active-low; enables I/O8–I/O15 during byte writes; same timing as BLE |
| VDD | Power Supply | 3.3 V primary supply; two dedicated VDD balls (pins D5, E4) reduce IR drop |
| VSS | Ground | Ground reference; two dedicated VSS balls (pins D4, E5) improve noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Fully static asynchronous operation | No clock, no refresh required-simplifies timing design and eliminates refresh overhead in microcontroller systems |
| Independent byte write control | BHE/BLE pins allow selective 8-bit writes without disturbing adjacent byte-critical for protocol stack buffers |
| Low-impedance LVTTL I/Os | Drives ±4 mA/±8 mA loads directly; eliminates need for external level shifters or bus transceivers |
| Multi-mode write timing | Supports CS-, WE-, and BHE/BLE-controlled write cycles-enables flexible integration with diverse bus architectures |
| Industrial temperature qualification | Specified and tested across –40°C to +85°C; suitable for automotive body control and industrial PLC modules |
Applications
| Industrial Data Logger | Medical Imaging Buffer |
|---|---|
Use Scenario: High-speed acquisition of sensor data streams (e.g., thermocouple arrays, pressure transducers) with burst sampling at 50 kSPS. IC Role / Device Role / Timing Role: Primary SRAM buffer storing raw samples before DMA transfer to host processor; operates in continuous read/write mode with tRC = 20 ns. Use Value: Eliminates wait states during back-to-back sample storage; 64K × 16-bit depth supports >1-second buffered capture at 50 kSPS. | Use Scenario: Temporary frame storage in portable ultrasound devices during real-time beamforming and image reconstruction. IC Role / Device Role / Timing Role: Dual-port accessible via separate byte enables-upper byte stores pixel intensity, lower byte stores metadata tags. Use Value: Enables concurrent write of new pixel data and read of prior frame metadata without bus contention or arbitration logic. |
| Avionics Flight Control Module | Programmable Logic Controller (PLC) |
Use Scenario: Storing flight-critical state variables (attitude, actuator positions, sensor health flags) with guaranteed retention during power transitions. IC Role / Device Role / Timing Role: Non-refresh volatile memory holding configuration and runtime state; accessed via microcontroller's external memory interface with CS/OE/WE handshaking. Use Value: 20 ns tRC and industrial temp rating ensure deterministic response under vibration, thermal cycling, and EMI stress per DO-160. | Use Scenario: Holding ladder logic scan results, I/O image tables, and PID loop registers in DIN-rail mounted industrial controllers. IC Role / Device Role / Timing Role: External memory mapped into CPU address space; byte enables support partial register updates without full-word overwrites. Use Value: Reduces update latency for discrete I/O status changes; 30 mA ISB current enables energy-efficient idle periods between scan cycles. |
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-20ZSXI | 512K × 16-bit (8 Mbit), 20 ns access, 3.3 V, SOIC-44 package; higher density but larger footprint | Requires PCB redesign due to SOIC-44 vs. FBGA-48; lacks BHE/BLE pins-byte masking handled externally | Select only if board space permits SOIC and density >1 Mbit is required; verify timing compatibility with existing controller interface |
| AS6C1008-20TIN | 128K × 8-bit (1 Mbit), 20 ns, 3.3 V, TSOP-32; 8-bit bus width, no byte enable separation | Half the data width requires two accesses per 16-bit word; no native upper/lower byte control-reduces efficiency in mixed-width protocols | Choose only for cost-sensitive 8-bit bus systems where byte granularity is not needed; avoid in 16-bit microcontroller interfaces |
Compared with CY62167EV30LL-20ZSXI and AS6C1008-20TIN, the 71V016SA20BF delivers native 16-bit width, integrated BHE/BLE control, and FBGA-48 packaging-making it optimal for space-constrained, high-throughput industrial controllers requiring precise byte-level memory management without external logic.
Availability
71V016SA20BF is available at Aetrix Electronics and suitable for industrial data loggers, medical imaging buffers, avionics flight control modules, and programmable logic controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 71V016SA20BF 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 specializing in microcontrollers, analog, power, and memory solutions for automotive, industrial, and infrastructure markets.
The 71V016SA20BF belongs to Renesas' legacy high-speed CMOS SRAM product line, designed specifically for deterministic, low-latency memory interfacing in real-time embedded systems where refresh-free operation and industrial reliability are mandatory.
FAQ
What is the maximum operating frequency supported by the 71V016SA20BF?
The 71V016SA20BF does not operate on a clock signal-it is an asynchronous SRAM. Its performance is specified by timing parameters: maximum read/write cycle time (tRC) is 20 ns, corresponding to an effective throughput of 50 MHz for consecutive operations. Address access time (tAA) is also 20 ns, ensuring deterministic latency without clock domain constraints. This makes the 71V016SA20BF ideal for microcontroller and FPGA-based systems without synchronous memory controllers.
Does the 71V016SA20BF require external refresh circuitry?
No, the 71V016SA20BF is a fully static RAM and requires no refresh circuitry or periodic access to retain data. Its internal latches maintain state indefinitely as long as VDD remains within 3.15–3.6 V and ambient temperature stays within –40°C to +85°C. This eliminates refresh overhead, simplifies system design, and ensures zero data loss during CPU stalls or low-power modes-key for safety-critical applications using the 71V016SA20BF.
Can the 71V016SA20BF be used with a 5 V microcontroller interface?
No-the 71V016SA20BF is strictly a 3.3 V LVTTL device with VIH minimum of 2.0 V and VIL maximum of 0.8 V. Direct connection to 5 V logic violates absolute maximum ratings (VIN ≤ VDD + 0.5 V = 4.1 V) and risks damage. Interfacing with 5 V microcontrollers requires level-shifting circuitry (e.g., TXB0108 or discrete MOSFET translators) to ensure input voltages stay within 0–3.6 V and output drive complies with 5 V receiver thresholds. The 71V016SA20BF itself must be powered only by a clean 3.3 V supply.
What is the function of the BHE and BLE pins on the 71V016SA20BF?
The BHE (High Byte Enable) and BLE (Low Byte Enable) pins on the 71V016SA20BF provide independent gating of the upper (I/O8–I/O15) and lower (I/O0–I/O7) data bytes during read and write operations. When BHE = LOW and BLE = HIGH, only the upper byte is active; when BLE = LOW and BHE = HIGH, only the lower byte is written or read. Both LOW enables full 16-bit word access. This eliminates software masking and reduces bus turnaround time in applications like protocol stacks or register-mapped peripherals using the 71V016SA20BF.
Is the 71V016SA20BF RoHS compliant and halogen-free?
Yes-the 71V016SA20BF is a green part per Renesas' ordering nomenclature ('G' suffix in variants like BFGI8), meaning it meets RoHS Directive 2011/65/EU and is halogen-free (chlorine < 900 ppm, bromine < 900 ppm). The FBGA-48 package uses lead-free solderable terminations and complies with JEDEC J-STD-020 moisture sensitivity level 3 (MSL3). Full compliance documentation, including material declarations and test reports, is available through Renesas' official product page for the 71V016SA20BF.
71V016SA20BF 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-CABGA (7x7)
71V016SA20BF FAQ
1.How can I place an order for 71V016SA20BF through Aetrix?
Please submit a Request for Quotation (RFQ) for 71V016SA20BF 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 71V016SA20BF reliable?
The price and inventory of 71V016SA20BF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71V016SA20BF is usually 5 days.
3.What payment methods are accepted for 71V016SA20BF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71V016SA20BF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71V016SA20BF?
71V016SA20BF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71V016SA20BF 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 71V016SA20BF?
For technical support, including 71V016SA20BF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71V016SA20BF requirements.
6.How does Aetrix verify that 71V016SA20BF is sourced from the original manufacturer or authorized distributors?
All 71V016SA20BF 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 71V016SA20BF meets industry standards.
7.What is the process for return or replacement of 71V016SA20BF?
All 71V016SA20BF units undergo pre-shipment inspection (PSI). If there is an issue with 71V016SA20BF, 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 71V016SA20BF part is unused and in its original packaging.
Return procedure for 71V016SA20BF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
71V016SA20BF Tags
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