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Renesas 71V416S15PHGI
- Part No.:
- 71V416S15PHGI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
71V416S15PHGI.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:1,487
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Product details
Overview
71V416S15PHGI from Renesas Electronics is a 4-Mbit (256K × 16) high-speed CMOS static RAM with 15 ns access time, single 3.3 V supply operation, LVTTL-compatible I/O, and JEDEC-standard center-power/ground pinout for noise reduction. It supports byte-wide and word-wide read/write operations via independent BHE/BLE controls and is used in industrial embedded controllers requiring deterministic, non-refreshing memory with low standby current.
For engineers reviewing the 71V416S15PHGI datasheet, 71V416S15PHGI pinout, 71V416S15PHGI application, or 71V416S15PHGI equivalent, key selection criteria include TSOP-II package compatibility, industrial temperature range (–40°C to +85°C), 15 ns cycle timing, byte enable functionality, and 3.3 V LVTTL interface integrity under high-noise board conditions.
Technical Context
The 71V416S15PHGI implements fully static asynchronous circuitry-no clocks or refresh required-and uses dual-byte enable (BHE/BLE) to support 8-bit or 16-bit data transfers without external logic. Its address decoding is internal, with A0–A17 supporting full 256K-word addressing.
Operation relies on three independent control signals: CS (chip select), WE (write enable), and OE (output enable), each with defined setup/hold and transition-to-output timing (e.g., tCLZ = 4 ns, tOE = 7 ns). All inputs and outputs are LVTTL-compatible with VIH ≥ 2.0 V and VIL ≤ 0.8 V at VDD = 3.3 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4,194,304 bits (256K × 16), enabling direct interface to 16-bit microcontrollers without data bus multiplexing |
| Access Time | 15 ns max (tAA, tACS), ensuring compatibility with 66 MHz bus systems with sufficient setup margin |
| Supply Voltage | 3.0 V to 3.6 V - operates within standard 3.3 V ±10% rail tolerances without level-shifting |
| Standby Current | 50 mA (ISB, industrial grade), enabling low-power hold states in battery-backed or energy-constrained systems |
| I/O Interface | LVTTL-compatible bidirectional data (I/O0–I/O15), eliminating need for external bus transceivers in 3.3 V logic domains |
| Operating Temperature | –40°C to +85°C (industrial grade), validated for use in motor drives, PLCs, and outdoor communications equipment |
| Package | 44-pin TSOP Type II (PHG44), 400-mil width - surface-mount compatible with standard reflow profiles and IPC-7351B land patterns |
Pinout & Package
71V416S15PHGI is housed in a 44-pin, 400-mil TSOP Type II (PHG44) package with JEDEC-standard center-power/ground pin arrangement to minimize simultaneous switching noise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | 18-bit address bus supporting full 256K-word addressing; no address multiplexing required |
| CS | Chip Select | Active-low global enable; places device in standby (high-Z I/O) when deasserted |
| WE | Write Enable | Active-low write strobe; controls data latching direction during CS-active cycles |
| OE | Output Enable | Active-low output gate; enables read data only when CS and OE are low (tOE = 7 ns max) |
| BHE / BLE | Byte Enable | Independent high/low byte controls allow 8-bit writes without masking logic or bus contention |
| I/O0–I/O15 | Bidirectional Data | 16-bit LVTTL I/O lines; internally terminated for impedance matching in point-to-point configurations |
| VDD / VSS | Power / Ground | Center-located VDD (pins 12, 33) and VSS (pins 11, 34) reduce ground bounce and supply noise |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC Center Power/GND Pinout | Reduces simultaneous switching noise by minimizing current loop area and improving power integrity |
| Dual Byte Enable (BHE/BLE) | Enables selective 8-bit writes to upper or lower byte without external gating or data masking |
| Equal Access & Cycle Times | 15 ns tRC = tAA ensures predictable timing margins across all read/write sequences |
| Low Standby Current (ISB = 50 mA) | Supports energy-efficient sleep modes in industrial controllers with infrequent memory access |
| Single 3.3 V Supply | Eliminates need for dual-rail regulators or level shifters in modern 3.3 V system designs |
Applications
| Industrial PLC Memory Buffer | Medical Imaging Frame Store |
|---|---|
Use Scenario: Real-time I/O data buffering in programmable logic controllers handling analog input scanning and digital output updates at 10 ms intervals. IC Role / Device Role / Timing Role: Non-volatile shadow RAM holding configuration and status registers; accessed asynchronously during scan cycle interrupts. Use Value: 15 ns access time ensures register reads complete before next interrupt latency window closes; industrial temp rating guarantees reliability in cabinet-mounted enclosures. | Use Scenario: Temporary frame storage in portable ultrasound devices where raw sensor data must be held prior to DSP processing. IC Role / Device Role / Timing Role: High-bandwidth pixel buffer interfacing directly to ADC output and FPGA image pipeline; no refresh overhead required. Use Value: 16-bit bus width matches typical ADC output width; LVTTL compatibility avoids signal integrity loss across short PCB traces. |
| Avionics Display Controller Cache | Ruggedized Network Switch Packet Buffer |
Use Scenario: Storing glyph bitmaps and overlay metadata in DO-254-compliant cockpit display units operating in extended thermal environments. IC Role / Device Role / Timing Role: Static cache for frequently accessed UI assets; accessed via dedicated memory-mapped region with fixed latency. Use Value: –40°C to +85°C rating meets RTCA/DO-160 Section 22 Category D vibration and temperature requirements; TSOP package withstands mechanical shock. | Use Scenario: Holding ingress/egress packet headers in Layer 2 switches deployed in outdoor telecom cabinets exposed to wide ambient swings. IC Role / Device Role / Timing Role: Low-latency header buffer supporting cut-through forwarding decisions; accessed per-packet with deterministic timing. Use Value: 44-pin TSOP footprint allows dense placement near switch ASIC; 50 mA ISB minimizes thermal load in sealed enclosures. |
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-45ZSXI | 4-Mbit (256K × 16), 45 ns access, 3.3 V, SOIC-44 package | Slower timing limits use in sub-25 MHz bus systems; SOIC not suitable for high-density layouts | Select only if board layout lacks TSOP footprint and timing budget permits >30 ns latency |
| AS6C4008-15TIN | 4-Mbit (256K × 16), 15 ns access, 3.3 V, TSOP-44, but no BHE/BLE pins | Requires external byte masking logic for 8-bit writes; higher component count and routing complexity | Choose only when byte-enable functionality is unused and cost-per-unit is primary constraint |
Compared with CY62167EV30LL-45ZSXI and AS6C4008-15TIN, the 71V416S15PHGI uniquely delivers industrial-grade 15 ns timing in a TSOP-II package with native byte enable support-enabling direct integration into space-constrained, high-reliability embedded systems without timing or logic overhead.
Availability
71V416S15PHGI is available at Aetrix Electronics and suitable for industrial PLCs, medical imaging subsystems, avionics display controllers, and ruggedized network switches requiring stable component supply across extended product lifecycles.
Supply support for 71V416S15PHGI 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 infrastructure markets.
The 71V416S15PHGI belongs to Renesas' legacy high-speed SRAM product line, designed specifically for deterministic, low-latency memory interfacing in industrial and aerospace applications where refresh-free operation and robust thermal performance are mandatory.
FAQ
What is the maximum clock frequency supported by the 71V416S15PHGI?
The 71V416S15PHGI is a fully static RAM with no clock input-it operates asynchronously. Its 15 ns access and cycle times support reliable interfacing with microcontrollers or FPGAs running bus clocks up to approximately 66 MHz, assuming adequate setup/hold timing margins are maintained in the system design. The 71V416S15PHGI does not require clocking or refresh cycles.
Does the 71V416S15PHGI support byte-level writes without external logic?
Yes, the 71V416S15PHGI supports true byte-level writes using its dedicated BHE (high byte enable) and BLE (low byte enable) pins. When only BHE is asserted, I/O8–I/O15 are written; when only BLE is asserted, I/O0–I/O7 are written. This eliminates the need for external byte masking gates or data bus gating logic in 8-bit peripheral interfaces.
What is the industrial temperature range specification for the 71V416S15PHGI?
The 71V416S15PHGI is rated for continuous operation from –40°C to +85°C, meeting industrial-grade environmental requirements. This specification is validated across all AC and DC electrical parameters-including access time (tAA ≤ 15 ns), standby current (ISB ≤ 50 mA), and input/output voltage thresholds-as confirmed in the Renesas datasheet revision dated May 26, 2021.
Can the 71V416S15PHGI be used with 5 V TTL logic interfaces?
No, the 71V416S15PHGI is strictly a 3.3 V LVTTL device. Its absolute maximum input voltage is VDD + 0.5 V (≤ 4.1 V), and VIH minimum is 2.0 V-making it incompatible with 5 V TTL signaling. Interfacing with 5 V systems requires level translation, such as TI SN74AVC4T245 or similar bidirectional translators, to prevent damage and ensure valid logic thresholds.
Is the 71V416S15PHGI pin-compatible with other speed grades in the same family?
Yes, all 71V416S variants-including 71V416S10PHGI, 71V416S12PHGI, and 71V416S15PHGI-share identical pinouts and package dimensions (PHG44 TSOP-II). Speed grade differences affect only timing parameters (e.g., tAA, tRC); no PCB redesign is needed when upgrading or downgrading within the S-series industrial-grade TSOP variants.
71V416S15PHGI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 44-TSOP (0.400", 10.16mm Width)
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Asynchronous
- Memory Size:
- 4Mbit
- Memory Organization:
- 256K x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 15ns
- Access Time:
- 15 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-TSOP II
71V416S15PHGI FAQ
1.How can I place an order for 71V416S15PHGI through Aetrix?
Please submit a Request for Quotation (RFQ) for 71V416S15PHGI 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 71V416S15PHGI reliable?
The price and inventory of 71V416S15PHGI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71V416S15PHGI is usually 5 days.
3.What payment methods are accepted for 71V416S15PHGI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71V416S15PHGI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71V416S15PHGI?
71V416S15PHGI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71V416S15PHGI 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 71V416S15PHGI?
For technical support, including 71V416S15PHGI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71V416S15PHGI requirements.
6.How does Aetrix verify that 71V416S15PHGI is sourced from the original manufacturer or authorized distributors?
All 71V416S15PHGI 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 71V416S15PHGI meets industry standards.
7.What is the process for return or replacement of 71V416S15PHGI?
All 71V416S15PHGI units undergo pre-shipment inspection (PSI). If there is an issue with 71V416S15PHGI, 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 71V416S15PHGI part is unused and in its original packaging.
Return procedure for 71V416S15PHGI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
71V416S15PHGI Tags
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