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Renesas 71V416L12PHG
- Part No.:
- 71V416L12PHG
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
71V416L12PHG.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:1,797
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Product details
Overview
71V416L12PHG from Renesas Electronics is a 4-Mbit (256K × 16) high-speed CMOS static RAM with 12 ns access time, single 3.3 V supply operation, LVTTL-compatible I/O, and JEDEC-standard center power/ground pinout. It supports byte-wide and word-wide read/write operations via dedicated BHE/BLE controls and is used in industrial embedded systems requiring deterministic, non-refreshed memory with low standby current.
For engineers reviewing the 71V416L12PHG datasheet, 71V416L12PHG pinout, 71V416L12PHG application, or 71V416L12PHG equivalent, key selection criteria include its 12 ns industrial-grade timing (–40°C to +85°C), 44-pin TSOP Type II package, byte-enable flexibility, and 10 µA full-standby current - critical for power-sensitive real-time control and data buffering.
Technical Context
The 71V416L12PHG implements fully static asynchronous circuitry with no clocks or refresh required. Its architecture includes independent high- and low-byte enable paths (BHE/BLE), separate chip select (CS) and output enable (OE) controls, and bidirectional LVTTL I/O buffers supporting 16-bit parallel data transfer.
Timing is defined by fixed-cycle parameters: tRC = 12 ns, tAA = 12 ns, tACS = 12 ns, and tOE = 6 ns (industrial grade). The device uses CMOS technology optimized for low dynamic and static power - ISB1 = 10 µA (full standby), ICC = 170 mA (max dynamic at fMAX).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4,194,304 bits (256K × 16 organization) |
| Access Time (tAA) | 12 ns - guarantees address-to-data valid delay under industrial temperature (–40°C to +85°C) |
| Supply Voltage | 3.3 V ±10% - single-rail LVTTL-compatible operation; no dual-voltage support |
| Standby Current (ISB1) | 10 µA - ultra-low static power draw when CS inactive, enabling battery-backed retention |
| I/O Interface | LVTTL-compatible bidirectional data bus (I/O0–I/O15) - interoperable with 3.3 V logic families without level shifters |
| Byte Control | Dedicated BHE and BLE inputs - enables independent 8-bit writes to upper/lower bytes without masking logic |
| Package | 44-pin TSOP Type II (PHG44), 400-mil width - surface-mount compatible with standard PCB reflow profiles |
Pinout & Package
71V416L12PHG is housed in a 44-pin, 400-mil TSOP Type II plastic package (PHG44), compliant with JEDEC MO-141BA. Pin layout follows center-power/ground configuration (VDD/VSS at pins 12/11 and 33/32) to minimize switching noise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | 18-bit address bus selecting one of 256K words; no internal address latching |
| CS | Chip Select | Active-low enable for all memory operations; deactivation places outputs in high-Z |
| OE | Output Enable | Active-low control for output drivers only; allows read data gating without disabling chip |
| WE | Write Enable | Active-low signal initiating write cycles; combined with CS/BHE/BLE determines write mode |
| BHE, BLE | Byte Enable Inputs | Independent active-low controls for high (I/O8–I/O15) and low (I/O0–I/O7) byte lanes |
| I/O0–I/O15 | Bidirectional Data | 16-bit LVTTL I/O bus; direction controlled by WE/CS state per cycle |
| VDD | Power Supply | 3.3 V main supply (pins 12 and 33); decoupling required per JEDEC guidelines |
| VSS | Ground | Signal and power ground (pins 11 and 32); center placement reduces ground bounce |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC Center Power/Ground Pinout | Reduces simultaneous switching noise (SSN) by symmetric VDD/VSS placement - critical for stable high-speed reads/writes |
| Separate Byte Enables (BHE/BLE) | Eliminates need for external byte-mask logic in 8-bit peripheral interfacing or partial-word updates |
| 10 µA Full Standby Current (ISB1) | Enables true zero-refresh retention in power-constrained applications like industrial PLCs during sleep modes |
| 12 ns Industrial Timing | Guaranteed performance across –40°C to +85°C without derating - suitable for automotive engine control modules |
| LVTTL-Compatible I/O | Direct interface with 3.3 V microcontrollers (e.g., Renesas RX, SH, RZ families) without voltage translation |
Applications
| Industrial PLC Data Buffering | Automotive Engine Control Unit (ECU) |
|---|---|
Use Scenario: Real-time acquisition and temporary storage of sensor data (e.g., crankshaft position, throttle angle) between MCU processing cycles. IC Role / Device Role / Timing Role: Asynchronous SRAM providing deterministic 12 ns read/write latency for time-critical control loops. Use Value: Eliminates DRAM refresh overhead and enables predictable worst-case execution time (WCET) analysis for ISO 26262 ASIL-B compliance. | Use Scenario: Storing calibration tables and transient diagnostic logs in engine management systems operating under wide thermal stress. IC Role / Device Role / Timing Role: Non-volatile-retained buffer (with backup power) holding fault codes and adaptive learning parameters during ignition-off periods. Use Value: 10 µA ISB1 minimizes battery drain; industrial temperature rating ensures reliability across under-hood thermal cycling. |
| Medical Imaging Frame Memory | Test & Measurement Equipment FIFO |
Use Scenario: Temporary storage of digitized X-ray or ultrasound frames before compression and transmission to host PC. IC Role / Device Role / Timing Role: High-bandwidth 16-bit parallel memory acting as frame buffer between ADC and FPGA controller. Use Value: 12 ns tAA and tRC support sustained 83 MB/s throughput (1/12 ns × 16 bits), matching real-time imaging data rates. | Use Scenario: Capturing high-speed serial protocol traces (e.g., CAN FD, SPI) in logic analyzers with deep memory depth requirements. IC Role / Device Role / Timing Role: Dual-port-capable SRAM used as circular buffer for continuous data capture at system clock rates. Use Value: Independent BHE/BLE enables atomic byte-level updates without corrupting adjacent data - essential for glitch-free protocol decoding. |
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, 44-pin TSOP - slower timing, higher ISB1 (25 µA) | Targeted at cost-sensitive industrial designs where 12 ns speed is not required | Select when system timing budget allows ≥45 ns cycles and lower power is secondary to procurement availability |
| AS6C4008-12TIN | 4-Mbit (256K × 16), 12 ns access, 3.3 V, 44-pin TSOP - identical speed but higher ISB1 (20 µA), no BHE/BLE | Suitable for simpler 16-bit-only interfaces without byte-select needs | Choose if byte-enable functionality is unused and legacy footprint compatibility with Alliance Memory is prioritized |
Compared with CY62167EV30LL-45ZSXI and AS6C4008-12TIN, the 71V416L12PHG delivers superior low-power standby (10 µA vs. 20–25 µA) and integrated byte control - reducing BOM count and PCB area in space-constrained embedded controllers.
Availability
71V416L12PHG is available at Aetrix Electronics and suitable for industrial PLCs, automotive ECUs, medical imaging subsystems, and test equipment requiring stable component supply with guaranteed long-term lifecycle support.
Supply support for 71V416L12PHG 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 IoT markets.
The 71V416L12PHG belongs to Renesas' legacy high-speed CMOS SRAM product line, designed specifically for deterministic, low-latency, non-refreshed memory in mission-critical embedded control and data acquisition systems.
FAQ
What is the maximum operating temperature range for the 71V416L12PHG?
The 71V416L12PHG is rated for industrial temperature operation from –40°C to +85°C. This specification is guaranteed across all AC and DC electrical parameters, including 12 ns access time and 10 µA full-standby current. It does not support extended or automotive AEC-Q100 temperature grades.
Does the 71V416L12PHG require an external clock or refresh circuitry?
No, the 71V416L12PHG uses fully static CMOS design and requires no clock input or periodic refresh cycles. All operations are asynchronous and controlled solely by CS, OE, WE, BHE, and BLE signals - simplifying system design and eliminating refresh-related timing constraints in the 71V416L12PHG implementation.
Can the 71V416L12PHG be used with 5 V logic systems?
No, the 71V416L12PHG is strictly a 3.3 V LVTTL device. Its absolute maximum input voltage is VDD + 0.5 V (≤3.8 V), and VIH minimum is 2.0 V. Direct connection to 5 V logic will exceed voltage ratings and risk damage. Level-shifting circuitry is mandatory for interfacing with 5 V systems using the 71V416L12PHG.
What is the function of the NC pins on the 71V416L12PHG TSOP package?
The 71V416L12PHG TSOP package has no NC (No Connect) pins in its 44-pin PHG44 configuration. All 44 pins are assigned functional roles per the official Renesas pinout diagram - including A0–A17, CS, OE, WE, BHE, BLE, I/O0–I/O15, VDD, and VSS. Any reference to NC applies only to the BGA variant (e.g., BE48), not the 71V416L12PHG.
How does byte enable (BHE/BLE) operation affect write timing in the 71V416L12PHG?
In the 71V416L12PHG, asserting either BHE or BLE low (while CS and WE are low) initiates a byte-write cycle with tBW = 8 ns min. When both are low, a full 16-bit word write occurs with tWP = 8 ns min. The 71V416L12PHG truth table confirms that byte enables directly gate write drivers - no additional setup/hold penalties apply beyond those specified in the AC characteristics table.
71V416L12PHG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 44-TSOP (0.400", 10.16mm Width)
- Packaging:
- Tube
- 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:
- 12ns
- Access Time:
- 12 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
71V416L12PHG FAQ
1.How can I place an order for 71V416L12PHG through Aetrix?
Please submit a Request for Quotation (RFQ) for 71V416L12PHG 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 71V416L12PHG reliable?
The price and inventory of 71V416L12PHG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 71V416L12PHG is usually 5 days.
3.What payment methods are accepted for 71V416L12PHG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 71V416L12PHG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 71V416L12PHG?
71V416L12PHG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 71V416L12PHG 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 71V416L12PHG?
For technical support, including 71V416L12PHG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 71V416L12PHG requirements.
6.How does Aetrix verify that 71V416L12PHG is sourced from the original manufacturer or authorized distributors?
All 71V416L12PHG 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 71V416L12PHG meets industry standards.
7.What is the process for return or replacement of 71V416L12PHG?
All 71V416L12PHG units undergo pre-shipment inspection (PSI). If there is an issue with 71V416L12PHG, 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 71V416L12PHG part is unused and in its original packaging.
Return procedure for 71V416L12PHG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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