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Renesas 70V3379S5PRFI
- Part No.:
- 70V3379S5PRFI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 128-LQFP
- Datasheet:
-
70V3379S5PRFI.pdf
- Description:
- IC SRAM 576KBIT PARALLEL 128TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,419
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Product details
Overview
70V3379S5PRFI from Integrated Device Technology is a high-speed 32K × 18-bit synchronous dual-port static RAM with pipelined output, true dual-port architecture enabling simultaneous read/write access to the same memory location, 7.5 ns clock cycle time (133 MHz), and selectable 3.3 V or 2.5 V I/O interface per port. It supports industrial temperature range (–40°C to +85°C) and is used in real-time packet buffering for telecom line cards.
For engineers reviewing the 70V3379S5PRFI datasheet, 70V3379S5PRFI pinout, 70V3379S5PRFI application, or 70V3379S5PRFI equivalent, key selection criteria include pipelined latency timing (tCD2 ≤ 5 ns), independent port voltage configuration via OPTL/OPTR, counter-enabled burst addressing, and dual chip enable support for depth expansion without external logic.
Technical Context
The 70V3379S5PRFI implements fully synchronous operation on both left and right ports, with all control, address, and data inputs registered on the rising edge of CLKL/CLKR. Its self-timed write pulse decouples internal write completion from clock edge timing, enabling minimal cycle time.
Each port features independent ADS (address strobe), CNTEN (counter enable), CNTRST (counter reset), and byte-enable (UBL/LBL, UBR/LBR) controls. The address counter advances only when CNTEN = VIL on clock rise - independent of CE0/CE1 state - supporting deterministic burst transfers without external address generation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 32K × 18 bits (576 Kbit total); enables 18-bit parallel data paths per port |
| Clock Cycle Time (Pipelined) | 7.5 ns min (133 MHz operation); defines maximum sustained throughput per port |
| Clock-to-Data Valid (tCD2) | 5 ns max (industrial grade); determines minimum latency from clock edge to valid output |
| I/O Supply Voltage | Selectable 3.3 V ±150 mV or 2.5 V ±125 mV per port via OPTL/OPTR pins; supports mixed-voltage system interfacing |
| Operating Temperature | –40°C to +85°C (industrial grade); validated for embedded telecom and industrial control environments |
| Standby Current (ISB3) | 6 mA typ / 30 mA max (both ports in full CMOS standby); enables low-power idle states in always-on systems |
| Port-to-Port Delay (tCO) | 8 ns min; ensures deterministic timing margin for cross-port data handoff in pipelined architectures |
Pinout & Package
70V3379S5PRFI is packaged in a 208-pin fine-pitch Ball Grid Array (fpBGA, package code BF208), with 17 mm × 17 mm body and 1.0 mm ball pitch. Power distribution includes dedicated VDD (3.3 V core), VDDQL/VDDQR (port-selectable I/O supply), and multiple VSS balls for noise suppression.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKL / CLKR | Port-synchronous clock input | Rising-edge-triggered register clock for all inputs; defines timing reference for pipelined output |
| ADSL / ADSR | Address strobe enable | When low, loads external address on next CLK edge; enables address latching independent of counter mode |
| CNTENL / CNTENR | Counter enable | Low level enables automatic address increment on each clock rise; supports burst-mode sequential access |
| CNTRSTL / CNTRSTR | Counter reset | Active-high signal resets internal address counter to 0; allows deterministic restart of burst sequences |
| OPTL / OPTR | I/O voltage select | VIH (3.3 V) configures corresponding port for 3.3 V I/O levels; VIL (0 V) configures for 2.5 V I/O levels |
| CE0L/CE1L, CE0R/CE1R | Dual chip enable pair | CE0L = VIH or CE1L = VIL disables left port; same logic applies to right port - enables depth expansion without glue logic |
| UBL/LBL, UBR/LBR | Byte enable (9-bit) | Independent upper/lower byte gating per port; supports 9-bit bus matching and partial writes |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port memory cells | Enables concurrent read and write to identical addresses - critical for FIFO and shared-buffer arbitration |
| Pipelined output mode | One-cycle output delay (tCD2) simplifies timing closure in high-frequency synchronous buses |
| Independent port voltage selection | OPTL/OPTR pins allow left port at 3.3 V and right port at 2.5 V - eliminates level shifters in mixed-voltage SoC interfaces |
| Self-timed write | Internal write pulse duration adapts to process/voltage/temperature - guarantees reliable write completion without clock stretching |
| Automatic power-down | CE0/CE1-controlled standby reduces active port current to ISB2 (190 mA max) and full standby to ISB3 (30 mA max) |
Applications
| Telecom Packet Buffering | Real-Time DSP Co-Processor Interface |
|---|---|
|
Use Scenario: Line card buffers incoming/outgoing Ethernet or SONET packets before classification and forwarding. IC Role / Device Role / Timing Role: Dual-port RAM acts as ping-pong buffer: one port accepts ingress traffic while the other feeds egress scheduler. Use Value: Simultaneous access eliminates arbitration delays; 133 MHz bandwidth sustains >9.6 Gbps aggregate throughput across both ports. |
Use Scenario: Offloading FFT or filtering tasks from main CPU using dedicated DSP with separate instruction/data buses. IC Role / Device Role / Timing Role: Provides zero-wait-state shared memory between CPU and DSP, with independent clock domains. Use Value: Pipelined tCD2 ≤ 5 ns ensures deterministic data availability; counter mode accelerates coefficient table reads. |
| Industrial Motion Controller | Test Equipment Pattern Memory |
|
Use Scenario: Storing real-time position setpoints and encoder feedback in closed-loop servo drives. IC Role / Device Role / Timing Role: Left port receives updated trajectory points from host MCU; right port supplies interpolated values to PWM engine. Use Value: Industrial temp rating (–40°C to +85°C) ensures reliability in motor cabinet environments; dual CE enables seamless firmware updates. |
Use Scenario: Generating high-speed digital stimulus patterns in ATE systems requiring precise timing alignment. IC Role / Device Role / Timing Role: Stores multi-cycle test vectors; counter mode auto-increments address for sequential playback. Use Value: 7.5 ns cycle time supports >133 MHz pattern rates; separate byte enables allow nibble-level stimulus masking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C1375BV-5BC | 32K × 18, 5 ns access, 3.3 V only I/O, no counter mode, 165-ball BGA | Lacks address counter and independent I/O voltage selection; requires external logic for burst addressing | Choose when system uses uniform 3.3 V signaling and does not require counter-based sequential access |
| AS7C33256A-10JIN | 32K × 18, 10 ns access, 3.3 V core/I/O, TQFP-128, no pipelining or counter | Slower timing (10 ns vs. 5 ns tCD2), no pipelined output or address counter; simpler control interface | Choose for cost-sensitive industrial designs where 133 MHz throughput is not required and layout space favors TQFP |
Compared with CY7C1375BV-5BC and AS7C33256A-10JIN, the 70V3379S5PRFI delivers superior timing performance (5 ns tCD2), integrated burst addressing via counter mode, and flexible per-port I/O voltage selection - making it optimal for high-throughput, mixed-voltage, or deterministic-burst applications.
Availability
70V3379S5PRFI is available at Aetrix Electronics and suitable for telecom infrastructure, industrial motion control, and test equipment applications requiring stable component supply, long-term lifecycle support, and industrial-grade temperature compliance.
Supply support for 70V3379S5PRFI 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
Integrated Device Technology (IDT), now part of Renesas Electronics, specializes in high-performance timing, memory, and interface solutions for communications, computing, and industrial markets.
The 70V3379S5PRFI belongs to IDT's high-speed synchronous dual-port SRAM product line, designed specifically for real-time data buffering, inter-processor communication, and deterministic burst-access applications in telecom and embedded systems.
FAQ
What is the maximum operating frequency of the 70V3379S5PRFI?
The 70V3379S5PRFI supports a minimum clock cycle time of 7.5 ns, enabling operation up to 133 MHz in pipelined mode. This is validated across the industrial temperature range (–40°C to +85°C) and corresponds to a sustained bandwidth of 9.6 Gbps per port when transferring 18-bit words.
Does the 70V3379S5PRFI support independent voltage operation on its two ports?
Yes, the 70V3379S5PRFI supports independent I/O voltage selection per port via OPTL and OPTR pins. Setting OPTL to VIH (3.3 V) configures the left port for 3.3 V I/O levels, while setting OPTR to VIL (0 V) configures the right port for 2.5 V I/O levels - enabling direct interfacing with mixed-voltage ASICs or FPGAs without level shifters.
How does the address counter function in the 70V3379S5PRFI?
The 70V3379S5PRFI includes independent address counters on both ports. When CNTENL (or CNTENR) is held low, the counter automatically increments on each rising CLKL (or CLKR) edge - generating sequential addresses without external logic. CNTRSTL/R resets the counter to address 0. This mode is ideal for burst-mode data streaming or pattern playback.
What package options are available for the 70V3379S5PRFI?
The 70V3379S5PRFI is offered in three package variants: 128-pin TQFP (PKG128), 208-pin fine-pitch BGA (BF208), and 256-pin BGA (BC256/BCG256). The 70V3379S5PRFI specifically uses the 208-pin fpBGA (BF208) with 17 mm × 17 mm body and 1.0 mm ball pitch - optimized for high-density routing and thermal dissipation in telecom modules.
What is the power consumption of the 70V3379S5PRFI in standby mode?
In full standby mode (both ports disabled with CMOS-level inputs), the 70V3379S5PRFI draws 6 mA typical and 30 mA maximum (ISB3). With one port active and outputs disabled, it consumes 180–300 mA (ISB4, industrial grade). These values reflect verified measurements under VDD = 3.3 V ±150 mV and TA = –40°C to +85°C conditions.
70V3379S5PRFI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 128-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Synchronous
- Memory Size:
- 576Kbit
- Memory Organization:
- 32K x 18
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 5 ns
- Voltage - Supply:
- 3.15V ~ 3.45V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 128-TQFP (14x20)
70V3379S5PRFI FAQ
1.How can I place an order for 70V3379S5PRFI through Aetrix?
Please submit a Request for Quotation (RFQ) for 70V3379S5PRFI 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 70V3379S5PRFI reliable?
The price and inventory of 70V3379S5PRFI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70V3379S5PRFI is usually 5 days.
3.What payment methods are accepted for 70V3379S5PRFI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 70V3379S5PRFI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 70V3379S5PRFI?
70V3379S5PRFI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 70V3379S5PRFI 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 70V3379S5PRFI?
For technical support, including 70V3379S5PRFI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70V3379S5PRFI requirements.
6.How does Aetrix verify that 70V3379S5PRFI is sourced from the original manufacturer or authorized distributors?
All 70V3379S5PRFI 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 70V3379S5PRFI meets industry standards.
7.What is the process for return or replacement of 70V3379S5PRFI?
All 70V3379S5PRFI units undergo pre-shipment inspection (PSI). If there is an issue with 70V3379S5PRFI, 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 70V3379S5PRFI part is unused and in its original packaging.
Return procedure for 70V3379S5PRFI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
70V3379S5PRFI Tags
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