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Renesas 71V416S15PHG
- Part No.:
- 71V416S15PHG
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
71V416S15PHG.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:2,602
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Product details
Overview
71V416S15PHG 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 in commercial temperature range (0°C to +70°C) and is used in embedded controllers, networking interface buffers, and real-time data acquisition systems.
For engineers reviewing the 71V416S15PHG datasheet, 71V416S15PHG pinout, 71V416S15PHG application, or 71V416S15PHG equivalent, key selection criteria include access timing consistency (tAA = tACS = 15 ns), low-Z output enable delay (tOE = 7 ns), byte enable control (BHE/BLE), and TSOP Type II package compatibility with legacy memory layouts.
Technical Context
The 71V416S15PHG implements fully static asynchronous circuitry-no clocks or refresh required-and uses high-reliability CMOS fabrication optimized for stable 3.3 V operation. Its architecture includes separate high- and low-byte write buffers, independent OE/CS/WE control logic, and bidirectional LVTTL I/O drivers with 8 mA sink and –4 mA source capability.
Timing is governed by three distinct control paths: CS-controlled, OE-controlled, and BHE/BLE-controlled write cycles, each with defined setup/hold and pulse-width requirements (e.g., tWP = 10 ns min). Input and output capacitance are characterized at 7 pF (CIN) and 8 pF (CI/O), supporting reliable signal integrity up to 66 MHz effective bus rates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4,194,304 bits (256K × 16 organization) |
| Access Time (tAA) | 15 ns - defines maximum clock-to-data latency in synchronous interfaces |
| Supply Voltage | 3.0–3.6 V - compatible with standard 3.3 V logic rails without level shifting |
| I/O Interface | LVTTL-compatible - ensures direct connection to 3.3 V microcontrollers and FPGAs |
| Byte Enable Support | BHE and BLE pins - enable selective 8-bit writes without disturbing adjacent byte |
| Package | 44-pin TSOP Type II (PHG44), 400-mil width - industry-standard footprint for space-constrained PCBs |
| Operating Temperature | 0°C to +70°C - qualified for commercial-grade embedded and industrial control applications |
Pinout & Package
71V416S15PHG is housed in a 44-pin, 400-mil TSOP Type II (PHG44) package with JEDEC-compliant center-power/ground pinout to minimize switching noise. Pin assignments follow standard SRAM layout with address inputs on both sides, dual byte enables, and dedicated chip select and output enable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | 18-bit address bus supporting full 256K-word addressing |
| CS | Chip Select | Active-low global enable; deactivates all outputs and reduces ICC to ISB1 (20 mA max) |
| OE | Output Enable | Active-low control of output drivers; tOE = 7 ns ensures fast read response |
| WE | Write Enable | Active-low write strobe; initiates data capture on rising edge when CS and BHE/BLE are asserted |
| BHE, BLE | Byte Enable | Independent 8-bit write gating: BHE controls I/O8–I/O15, BLE controls I/O0–I/O7 |
| I/O0–I/O15 | Bidirectional Data | 16-bit LVTTL I/O with 8 mA sink/–4 mA source; high-impedance when CS or OE high |
| VDD | Power Supply | 3.3 V core and I/O supply; two pins (pins 12 and 33) reduce IR drop and noise |
| VSS | Ground | Signal and power ground; two pins (pins 11 and 34) improve return path integrity |
Key Features
| Feature | Design Value |
|---|---|
| Equal access and cycle times | tAA = tACS = tRC = 15 ns - eliminates timing margin uncertainty in burst or pipelined reads |
| JEDEC center-power/ground pinout | Dual VDD/VSS placement minimizes simultaneous switching noise (SSN) in high-density memory arrays |
| Low-power standby mode | ISB1 = 20 mA (max) at full VDD - enables energy-efficient idle states in portable and fanless systems |
| Byte-selectable write capability | Independent BHE/BLE control allows partial-word updates without read-modify-write overhead |
| Single 3.3 V supply | Eliminates need for dual-voltage regulators or level translators in modern 3.3 V system designs |
Applications
| Networking Interface Buffer | Industrial PLC Data Cache |
|---|---|
Use Scenario: Storing packet headers and metadata in Ethernet switch ASIC support logic. IC Role / Device Role / Timing Role: Asynchronous SRAM buffer between MAC controller and packet processor, absorbing bursty traffic with deterministic 15 ns read latency. Use Value: Eliminates FIFO depth constraints and enables zero-wait-state access for time-critical header parsing. | Use Scenario: Holding real-time I/O status and configuration registers in programmable logic controller backplane modules. IC Role / Device Role / Timing Role: Non-refreshing data store for volatile process variables, accessed directly by ARM Cortex-M7 core via parallel bus. Use Value: Guarantees sub-20 ns register update latency while maintaining data integrity across power cycles via external backup. |
| Medical Imaging Frame Store | Test Equipment Pattern Memory |
Use Scenario: Capturing intermediate scan-line buffers in ultrasound beamforming subsystems. IC Role / Device Role / Timing Role: Dual-port-capable SRAM (via OE/WE sequencing) acting as ping-pong frame buffer for real-time image reconstruction. Use Value: Enables continuous acquisition at 30+ fps without DMA bottlenecks or DRAM refresh interference. | Use Scenario: Storing stimulus/response vectors in automated boundary-scan test systems. IC Role / Device Role / Timing Role: High-reliability pattern memory accessed by FPGA-based pattern generator at 66 MHz effective rate. Use Value: Provides deterministic 15 ns address-to-data timing critical for precise vector launch windows and pass/fail comparison. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed parallel SRAM 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 >22 MHz bus systems; lacks BHE/BLE byte enable | Choose for cost-sensitive, lower-speed control-plane buffering where pin count matches but timing margin is relaxed. |
| AS6C4008-15TIN | 4-Mbit (256K × 16), 15 ns access, 3.3 V, TSOP-44, no BHE/BLE | Missing byte enable pins requires full-word writes; higher ISB (35 mA vs. 20 mA) | Use when board layout cannot accommodate BHE/BLE routing but identical speed and package are required. |
Compared with CY62167EV30LL-45ZSXI and AS6C4008-15TIN, the 71V416S15PHG delivers faster deterministic access, true byte-selectable writes, and lower standby current-making it optimal for real-time embedded systems requiring precise timing control and power efficiency.
Availability
71V416S15PHG is available at Aetrix Electronics and suitable for networking interface buffers, industrial PLC data caches, medical imaging frame stores, and test equipment pattern memories requiring stable component supply across multi-year production cycles.
Supply support for 71V416S15PHG 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.
The 71V416S15PHG belongs to Renesas' legacy high-speed parallel SRAM product line, designed specifically for deterministic, low-latency memory interfacing in resource-constrained real-time systems without refresh overhead.
FAQ
What is the maximum operating frequency supported by the 71V416S15PHG?
The 71V416S15PHG does not operate on a clock but supports asynchronous bus frequencies up to approximately 66 MHz, derived from its 15 ns read cycle time (tRC). For reliable operation, address and control signals must meet specified setup/hold times (e.g., tAS = 0 ns, tAH = 0 ns), and system timing margins must account for propagation delays and capacitive loading per the AC test conditions (30 pF load, 50 Ω source).
Does the 71V416S15PHG require refresh circuitry?
No, the 71V416S15PHG is a fully static RAM and requires no refresh circuitry. Its internal latches retain data indefinitely as long as power (VDD) and ground (VSS) are maintained within specification and all inputs remain within valid voltage levels. This eliminates refresh overhead and simplifies system design compared to DRAM-based solutions.
Can the 71V416S15PHG be used with 5 V logic systems?
No, the 71V416S15PHG is strictly a 3.3 V device: VDD must be between 3.0 V and 3.6 V, and input voltages (VIH/VIL) are defined relative to that supply. Direct connection to 5 V logic violates absolute maximum ratings (VIN ≤ VDD + 0.5 V) and risks permanent damage. Level translation is mandatory for interfacing with 5 V microcontrollers or FPGAs.
What is the function of the BHE and BLE pins on the 71V416S15PHG?
The BHE (Bus High Enable) and BLE (Bus Low Enable) pins on the 71V416S15PHG independently gate writes to the upper (I/O8–I/O15) and lower (I/O0–I/O7) byte lanes. When asserted low with CS and WE active, they allow partial-word writes without affecting the opposite byte-critical for efficient register updates and protocol-compliant data packing in embedded firmware.
Is the 71V416S15PHG RoHS compliant and halogen-free?
Yes, the 71V416S15PHG is a green part: it meets RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21. The "G" suffix in the part number (PHG) explicitly denotes compliance, and Renesas confirms this in the ordering information section of the datasheet. Lead-free solder reflow profiles are validated per J-STD-020.
71V416S15PHG 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-TSOP II
71V416S15PHG FAQ
1.How can I place an order for 71V416S15PHG through Aetrix?
Please submit a Request for Quotation (RFQ) for 71V416S15PHG 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 71V416S15PHG reliable?
The price and inventory of 71V416S15PHG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71V416S15PHG is usually 5 days.
3.What payment methods are accepted for 71V416S15PHG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71V416S15PHG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71V416S15PHG?
71V416S15PHG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71V416S15PHG 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 71V416S15PHG?
For technical support, including 71V416S15PHG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71V416S15PHG requirements.
6.How does Aetrix verify that 71V416S15PHG is sourced from the original manufacturer or authorized distributors?
All 71V416S15PHG 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 71V416S15PHG meets industry standards.
7.What is the process for return or replacement of 71V416S15PHG?
All 71V416S15PHG units undergo pre-shipment inspection (PSI). If there is an issue with 71V416S15PHG, 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 71V416S15PHG part is unused and in its original packaging.
Return procedure for 71V416S15PHG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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