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Renesas 71016S15YGI
- Part No.:
- 71016S15YGI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 44-BSOJ (0.400", 10.16mm Width)
- Datasheet:
-
71016S15YGI.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 44SOJ
- Quantity:
- Payment:
- Shipping:
Inventory:4,566
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Product details
Overview
71016S15YGI from Renesas Electronics is a 64K × 16-bit (1,048,576-bit) high-speed CMOS static RAM with 15 ns access time, TTL-compatible I/O, single 5.0 V ±10% supply, and industrial temperature range (–40°C to +85°C). It features separate byte enable (BHE/BLE), output enable (OE), chip select (CS), and write enable (WE) for flexible memory control in embedded systems requiring deterministic timing.
For engineers reviewing the 71016S15YGI datasheet, 71016S15YGI pinout, 71016S15YGI application, or 71016S15YGI equivalent, this device serves as a drop-in replacement for legacy SRAMs in real-time data buffering, microcontroller co-processor memory, and industrial controller register file expansion where low-latency asynchronous read/write and byte-select capability are critical.
Technical Context
The 71016S15YGI implements fully static asynchronous circuitry-no clocks or refresh required-and uses high-reliability CMOS technology to deliver guaranteed 15 ns address access time (tAA) and 15 ns read cycle time (tRC) across the full industrial temperature range. Its bidirectional I/O architecture supports independent high-byte (I/O8–I/O15) and low-byte (I/O0–I/O7) operations via BHE and BLE inputs.
Operation relies on three key control hierarchies: chip select (CS) enables device-level activation; OE governs output driver state with 8 ns enable-to-valid delay (tOE); and WE, combined with BHE/BLE, determines whether word, high-byte, or low-byte writes occur-all with defined setup/hold timing (e.g., tAS = 0 ns, tWP = 10 ns min).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 64K × 16-bit (1 Mbit total); supports 16-bit parallel data bus without external multiplexing |
| Access Time (tAA) | 15 ns max at VCC = 4.5–5.5 V and TA = –40°C to +85°C; ensures deterministic latency in hard real-time systems |
| Supply Voltage | 5.0 V ±10% (4.5–5.5 V); compatible with legacy 5 V logic families and eliminates need for level shifters |
| I/O Interface | TTL-compatible inputs and outputs; drives standard 5 V TTL loads (IOH = –4 mA, IOL = 8 mA) directly |
| Byte Enable Control | Dedicated BHE and BLE pins enable independent 8-bit write/read of upper or lower byte-critical for mixed-endian or partial-word updates |
| Standby Current (ISB) | 50 µA max at CMOS-level chip deselect (CS > VHC); reduces power in idle states without external gating |
| Package | 44-pin Plastic SOJ (PBG44); JEDEC-standard footprint with 0.050" lead pitch, suitable for wave-soldered industrial PCBs |
Pinout & Package
71016S15YGI is housed in a 44-pin Plastic SOJ (PBG44) package per JEDEC MO-029, with gull-wing leads and 0.050" pitch. Pin 1 is marked by a beveled corner; top-view orientation matches standard SOJ layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A15 | Address Inputs | 16-bit address bus; selects one of 65,536 locations; fully static-no hold time required after CS assertion |
| CS | Chip Select | Active-low enable; device enters standby (high-Z I/O) when high; tACS = 15 ns max defines earliest valid access |
| OE | Output Enable | Active-low; controls output drivers only-does not affect internal memory state; tOE = 8 ns max enables fast read bursts |
| WE | Write Enable | Active-low; initiates write cycle when CS and BHE/BLE are also active; tWP = 10 ns min ensures reliable data capture |
| BHE / BLE | Byte Enable | Active-low; BHE enables I/O8–I/O15, BLE enables I/O0–I/O7; allows partial-word writes without disturbing adjacent bytes |
| I/O0–I/O15 | Bidirectional Data | 16-bit TTL-compatible data bus; high-impedance when CS high or OE high; no external transceivers needed |
| VCC | Power Supply | +5.0 V ±10%; decoupling required within 1 cm of pin; supports dynamic ICC = 180 mA (industrial grade) |
| VSS | Ground | Signal and power ground reference; two dedicated pins (pins 11 and 34) reduce ground bounce in high-speed operation |
Key Features
| Feature | Design Value |
|---|---|
| Asynchronous Static Operation | No clock, no refresh, no wait states-simplifies timing-critical control logic and eliminates hidden latency sources |
| Industrial Temperature Range | Guaranteed 15 ns performance from –40°C to +85°C; validated for use in factory automation, motor drives, and outdoor instrumentation |
| Byte-Selectable Write | Independent BHE/BLE control permits 8-bit writes to upper or lower half without reading-modify-write cycles-reducing bus traffic and CPU overhead |
| TTL-Compatible I/O | Direct interface to 5 V microcontrollers (e.g., Intel 80C188, Motorola 68EC000) and FPGAs without level-shifting components |
| Low Standby Power | 10 µA ISB1 (CMOS-level deselect) enables battery-backed operation in sleep modes without auxiliary power management |
Applications
| Industrial PLC Data Buffer | Legacy Microcontroller Co-Processor Memory |
|---|---|
|
Use Scenario: Real-time I/O scanning in programmable logic controllers where sensor data must be captured and processed within fixed 1 ms windows. IC Role / Device Role / Timing Role: Asynchronous SRAM providing zero-wait-state storage for input image tables and output latch registers. Use Value: 15 ns tAA and tRC guarantee deterministic read/write completion within tight scan cycles-eliminating jitter in control loop execution. |
Use Scenario: Off-chip memory expansion for 16-bit microcontrollers (e.g., Renesas H8/300H) running real-time OS kernels with limited on-die RAM. IC Role / Device Role / Timing Role: External program/data memory mapped into the MCU's linear address space using A0–A15 and byte-enable signals. Use Value: BHE/BLE support enables efficient stack and heap management in mixed 8/16-bit data environments without software byte masking overhead. |
| Medical Instrumentation FIFO | Avionics Sensor Interface Buffer |
|
Use Scenario: High-fidelity analog-to-digital sample buffering in portable ECG monitors sampling at 1 kSPS with on-device FFT processing. IC Role / Device Role / Timing Role: Dual-port-like behavior achieved via fast OE-controlled reads and WE-controlled writes-acting as a ping-pong buffer. Use Value: tOHZ = 6 ns and tOLZ = 0 ns allow rapid bus turnaround between acquisition and processing phases-maximizing effective throughput. |
Use Scenario: Interfacing discrete ARINC 429 receivers to flight management computers requiring deterministic latency and radiation-tolerant design margins. IC Role / Device Role / Timing Role: Non-volatile configuration shadow RAM holding protocol parameters and calibration coefficients-accessed during cold start. Use Value: Industrial-grade reliability (–40°C to +85°C) and 100% tested ISB1 current ensure stable boot-time parameter loading under thermal stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed asynchronous SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY62167EV30LL-45ZSXIT | 512K × 16-bit, 45 ns access, 3.3 V core (with 5 V tolerant I/O), TSOP II package | Higher density but slower speed; requires voltage translation for pure 5 V systems | Select when system has 3.3 V supply infrastructure and needs >1 Mbit capacity; not drop-in for 5 V-only designs |
| AS6C1008-15PCN | 128K × 8-bit, 15 ns access, 5 V only, 32-pin SOJ | 8-bit bus width, smaller capacity, same speed grade and temperature range | Choose for cost-sensitive 8-bit bus systems where byte-wide access suffices and board space is constrained |
Compared with CY62167EV30LL-45ZSXIT and AS6C1008-15PCN, the 71016S15YGI uniquely delivers 64K × 16-bit organization at 15 ns in a 5 V-native SOJ package-making it the only direct fit for legacy 16-bit microprocessor buses requiring industrial temperature compliance without redesign.
Availability
71016S15YGI is available at Aetrix Electronics and suitable for industrial PLCs, medical instrumentation, avionics sensor interfaces, and legacy microcontroller-based control systems requiring stable component supply over extended product lifecycles.
Supply support for 71016S15YGI 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 trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications-with emphasis on reliability, longevity, and functional safety.
The 71016S15YGI belongs to Renesas' legacy high-speed CMOS SRAM product line, designed specifically for backward compatibility with 5 V microprocessor and controller architectures in long-lifecycle industrial equipment.
FAQ
What is the operating temperature range for the 71016S15YGI?
The 71016S15YGI is rated for industrial temperature operation from –40°C to +85°C. This range is guaranteed across all specified AC and DC electrical parameters-including 15 ns access time (tAA), 15 ns read cycle time (tRC), and standby current (ISB = 50 µA)-making it suitable for deployment in harsh environments such as factory floors and outdoor control cabinets.
Does the 71016S15YGI require a clock signal or refresh circuitry?
No, the 71016S15YGI is a fully static asynchronous SRAM and requires neither a clock signal nor periodic refresh cycles. Its internal circuitry maintains data indefinitely as long as VCC is applied and CS remains asserted during access-simplifying system design and eliminating timing uncertainty associated with dynamic memory controllers.
Can the 71016S15YGI be used with a 3.3 V microcontroller interface?
The 71016S15YGI operates exclusively from a 5.0 V ±10% supply and features TTL-compatible I/O thresholds (VIH = 2.2 V min, VIL = 0.8 V max). Direct connection to 3.3 V logic is not supported; level-shifting circuitry or a 5 V I/O domain is required to ensure reliable communication with the 71016S15YGI.
What package type does the 71016S15YGI use, and is it RoHS-compliant?
The 71016S15YGI uses a 44-pin Plastic SOJ (PBG44) package with gull-wing leads. Per Renesas documentation, it is a "Green" device-meaning it complies with RoHS Directive 2011/65/EU and is lead-free, halogen-free, and compliant with JEDEC J-STD-609 moisture sensitivity level 3 (MSL3) handling requirements.
How does byte enable functionality work on the 71016S15YGI?
The 71016S15YGI provides two independent byte enable inputs: BHE (high-byte enable) for I/O8–I/O15 and BLE (low-byte enable) for I/O0–I/O7. When both are low, a full 16-bit word is accessed; when only one is low, only that 8-bit portion is read or written-enabling efficient partial-word operations without read-modify-write sequences in the 71016S15YGI.
71016S15YGI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 44-BSOJ (0.400", 10.16mm Width)
- Packaging:
- Tube
- 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:
- 15ns
- Access Time:
- 15 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-SOJ
71016S15YGI FAQ
1.How can I place an order for 71016S15YGI through Aetrix?
Please submit a Request for Quotation (RFQ) for 71016S15YGI 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 71016S15YGI reliable?
The price and inventory of 71016S15YGI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71016S15YGI is usually 5 days.
3.What payment methods are accepted for 71016S15YGI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71016S15YGI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71016S15YGI?
71016S15YGI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71016S15YGI 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 71016S15YGI?
For technical support, including 71016S15YGI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71016S15YGI requirements.
6.How does Aetrix verify that 71016S15YGI is sourced from the original manufacturer or authorized distributors?
All 71016S15YGI 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 71016S15YGI meets industry standards.
7.What is the process for return or replacement of 71016S15YGI?
All 71016S15YGI units undergo pre-shipment inspection (PSI). If there is an issue with 71016S15YGI, 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 71016S15YGI part is unused and in its original packaging.
Return procedure for 71016S15YGI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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