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Home > Products > Integrated Circuits (ICs) > Memory > Memory

Renesas 70V3389S5PRFI

Name: 70V3389S5PRFI
Brand: Renesas
SKU: 70V3389S5PRFI
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 70V3389S5PRFI

Manufacturer:: Renesas

Category:: Memory

Package:: 128-LQFP

Datasheet:: 70V3389S5PRFI.pdf

Description:: IC SRAM 1.125MBIT PAR 128TQFP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

70V3389S5PRFI from Integrated Device Technology is a high-speed 64K × 18-bit synchronous dual-port static RAM with pipelined output, 5 ns max clock-to-data access, 7.5 ns cycle time (133 MHz), and independent 3.3 V or 2.5 V I/O voltage selection per port. It enables simultaneous read/write access to the same memory location in real-time digital signal processing systems requiring low-latency inter-processor communication.

For engineers reviewing the 70V3389S5PRFI datasheet, 70V3389S5PRFI pinout, 70V3389S5PRFI application, or 70V3389S5PRFI equivalent, key selection criteria include pipelined timing compliance at 133 MHz, dual-voltage I/O flexibility (3.3 V/2.5 V per port), industrial temperature support (−40°C to +85°C), and true dual-port concurrency without arbitration logic.

Technical Context

The 70V3389S5PRFI implements fully synchronous operation on both ports with register-controlled address, data, and control inputs-enabling 1.8 ns setup and 0.7 ns hold times at 133 MHz. Its self-timed write architecture decouples internal write pulse generation from clock edge timing, minimizing cycle time dependency.

It supports pipelined output mode with one-cycle latency, address counter enable/reset per port, and independent byte enables (UBL/LBL, UBR/LBR) for 9-bit granularity. Dual chip enables (CE0/CE1) allow depth expansion without external logic, while OPTL/OPTR pins configure each port's I/O voltage independently.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Organization	64K × 18 bits (1,179,648 bits), supporting concurrent left/right port access to identical addresses
Clock Cycle Time	7.5 ns min (133 MHz operation), enabling 9.6 Gbps aggregate bandwidth across both ports
Access Time	5 ns max clock-to-data valid (pipelined mode), meeting tight timing budgets in DSP and FPGA co-processing
I/O Voltage Support	Selectable 3.3 V (±150 mV) or 2.5 V (±125 mV) per port via OPTL/OPTR pins-enables mixed-voltage system interfacing
Operating Temperature	−40°C to +85°C industrial grade, validated for continuous operation in embedded control and telecom infrastructure
Power Supply	Core VDD = 3.3 V ± 150 mV; separate VDDQ supplies per port eliminate I/O voltage crosstalk
Standby Current	6 mA typical full standby (ISB3), critical for low-power modes in always-on communication subsystems

Pinout & Package

70V3389S5PRFI is packaged in a 128-pin Thin Quad Plastic Flatpack (TQFP) with 0.4 mm lead pitch and 14 mm × 20 mm body size. Pin functions are validated per IDT datasheet DSC 4832/15 (July 2019), including dedicated left/right port clocks (CLKL/CLKR), address strobes (ADSL/ADSR), counter controls (CNTENL/CNTRSTL, CNTENR/CNTRSTR), and independent byte enables (UBL/LBL, UBR/LBR).

Pin/Terminal	Circuit Role	Design Meaning
CLKL / CLKR	Port-synchronous clock input	Rising-edge-triggered register clock for all left/right port inputs; enables deterministic 133 MHz timing
A0L–A15L / A0R–A15R	Address inputs	16-bit address bus per port; supports full 64K depth addressing with no external decoding
I/O0L–I/O17L / I/O0R–I/O17R	Bidirectional data I/O	18-bit data path per port; split into upper/lower 9-bit bytes controlled by UBL/LBL and UBR/LBR
CE0L/CE1L / CE0R/CE1R	Chip enable pair	Dual-enable logic allows depth expansion of multiple devices without glue logic; CE0L=LOW + CE1L=HIGH activates left port
OPTL / OPTR	I/O voltage select	Configures corresponding port's VDDQ supply voltage: VIH = 3.3 V, VIL = 2.5 V-supports heterogeneous bus interfacing
CNTRSTL / CNTRSTR	Counter reset	Asynchronously resets internal address counter to 0 on rising edge-enables burst sequential access initialization

Key Features

Feature	Design Value
True dual-port memory cells	Enables simultaneous, conflict-free read/write access to identical memory locations-eliminates arbitration overhead in multi-CPU systems
Pipelined output mode	One-cycle latency output delivery ensures deterministic timing for high-throughput streaming applications like video frame buffering
Independent per-port I/O voltage selection	OPTL/OPTR pins allow left port at 3.3 V and right port at 2.5 V-simplifies interface to mixed-voltage FPGAs or ASICs
Self-timed write architecture	Removes write timing dependency on clock edge alignment-reduces setup/hold constraints on write data paths
Depth expansion support	Dual CE0/CE1 enables permit stacking multiple 70V3389S5PRFI devices vertically without external decode logic
Industrial temperature range	Validated operation from −40°C to +85°C ensures reliability in base station radios, motor drives, and industrial PLCs

Applications

Telecom Line Card Buffering	FPGA Co-Processor Memory
Use Scenario: High-speed packet buffering between line interface ASIC and traffic management processor in 10G Ethernet line cards. IC Role / Device Role / Timing Role: Dual-port SRAM acts as zero-wait-state shared memory-left port accepts incoming packet data from PHY, right port feeds scheduler engine. Use Value: 5 ns access and 133 MHz pipelined throughput sustain 10 Gbps line rate without backpressure; independent I/O voltages match ASIC (3.3 V) and FPGA (2.5 V) domains.	Use Scenario: Real-time data exchange between FPGA fabric and external DSP in radar signal processing subsystems. IC Role / Device Role / Timing Role: Serves as low-latency scratchpad memory-FPGA writes sensor samples to left port, DSP reads processed results from right port. Use Value: True dual-port concurrency eliminates arbitration stalls; 7.5 ns cycle time aligns with FPGA register-to-register timing closure at 133 MHz.
Digital Audio Mixing Engine	Industrial Motion Controller
Use Scenario: Sample buffering and crossfading in professional digital audio workstations with multiple analog I/O channels. IC Role / Device Role / Timing Role: Provides synchronized read/write access to audio sample buffers-left port streams ADC data, right port feeds DAC output FIFO. Use Value: Pipelined output ensures jitter-free playback; address counter mode enables automatic sequential access across 64K sample frames.	Use Scenario: Shared memory between motion controller MCU and servo drive interface ASIC in CNC machine tool controllers. IC Role / Device Role / Timing Role: Acts as deterministic command/status exchange buffer-MCU writes motion profiles to left port, ASIC reads and executes on right port. Use Value: Industrial temperature rating guarantees stable operation in cabinet environments up to +85°C; dual CE enables seamless firmware update partitioning.

Telecom Line Card Buffering

FPGA Co-Processor Memory

Use Scenario: High-speed packet buffering between line interface ASIC and traffic management processor in 10G Ethernet line cards.

IC Role / Device Role / Timing Role: Dual-port SRAM acts as zero-wait-state shared memory-left port accepts incoming packet data from PHY, right port feeds scheduler engine.

Use Value: 5 ns access and 133 MHz pipelined throughput sustain 10 Gbps line rate without backpressure; independent I/O voltages match ASIC (3.3 V) and FPGA (2.5 V) domains.

Use Scenario: Real-time data exchange between FPGA fabric and external DSP in radar signal processing subsystems.

IC Role / Device Role / Timing Role: Serves as low-latency scratchpad memory-FPGA writes sensor samples to left port, DSP reads processed results from right port.

Use Value: True dual-port concurrency eliminates arbitration stalls; 7.5 ns cycle time aligns with FPGA register-to-register timing closure at 133 MHz.

Digital Audio Mixing Engine

Industrial Motion Controller

Use Scenario: Sample buffering and crossfading in professional digital audio workstations with multiple analog I/O channels.

IC Role / Device Role / Timing Role: Provides synchronized read/write access to audio sample buffers-left port streams ADC data, right port feeds DAC output FIFO.

Use Value: Pipelined output ensures jitter-free playback; address counter mode enables automatic sequential access across 64K sample frames.

Use Scenario: Shared memory between motion controller MCU and servo drive interface ASIC in CNC machine tool controllers.

IC Role / Device Role / Timing Role: Acts as deterministic command/status exchange buffer-MCU writes motion profiles to left port, ASIC reads and executes on right port.

Use Value: Industrial temperature rating guarantees stable operation in cabinet environments up to +85°C; dual CE enables seamless firmware update partitioning.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-port SRAM applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
CY7C1375BV33-5BC	5 ns access, 64K × 18, but only 3.3 V I/O (no 2.5 V option); TQFP-100 package	Lacks per-port voltage flexibility-requires level-shifting when interfacing to 2.5 V FPGAs	Choose when system uses uniform 3.3 V signaling and board space constraints favor smaller footprint.
AS7C364000B-5TIN	5 ns access, 64K × 18, 3.3 V core/I/O, but no pipelined mode or address counter features	No pipelined output or internal address generation-requires external counter logic for burst transfers	Choose for cost-sensitive designs where pipelining and counter functions are unnecessary.

Compared with CY7C1375BV33-5BC and AS7C364000B-5TIN, the 70V3389S5PRFI uniquely delivers per-port I/O voltage selection, pipelined output latency, and integrated address counter-reducing BOM count and PCB complexity in mixed-voltage, high-throughput systems.

Availability

70V3389S5PRFI is available at Aetrix Electronics and suitable for telecom infrastructure, industrial motion control, FPGA co-processing, and digital audio equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 70V3389S5PRFI 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, is a fabless semiconductor company specializing in timing, memory interface, RF, and power management ICs for communications, computing, and industrial markets.

The 70V3389S5PRFI belongs to IDT's high-speed synchronous dual-port SRAM product line, engineered for deterministic, low-latency memory sharing between heterogeneous processors, FPGAs, and ASICs in real-time embedded systems.

FAQ

What is the maximum operating frequency of the 70V3389S5PRFI?

The 70V3389S5PRFI supports a minimum clock cycle time of 7.5 ns, enabling reliable operation at 133 MHz in pipelined mode. This frequency is guaranteed across the full industrial temperature range (−40°C to +85°C) and under worst-case voltage conditions (VDD = 3.15 V). The device achieves this performance through registered inputs and self-timed write architecture, not just nominal speed grading.

Does the 70V3389S5PRFI support independent I/O voltage levels on its two ports?

Yes, the 70V3389S5PRFI 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 operation with VDDQL = 3.3 V, while setting OPTR to VIL (0 V) configures the right port for 2.5 V I/O with VDDQR = 2.5 V. This capability is explicitly documented in the "Truth Table II" and "Recommended DC Operating Conditions" sections of the datasheet.

How does the address counter function work on the 70V3389S5PRFI?

The 70V3389S5PRFI provides independent address counters on both ports, controlled by CNTENL/CNTENR and CNTRSTL/CNTRSTR. When CNTENX = VIL on the rising edge of CLKX, the internal counter advances automatically-bypassing external address bus changes. CNTRSTX asynchronously resets the counter to address 0. This feature enables efficient burst-mode sequential access without consuming CPU cycles or FPGA logic for address generation.

What package type is used for the 70V3389S5PRFI?

The 70V3389S5PRFI is supplied in a 128-pin Thin Quad Plastic Flatpack (TQFP) package, designated PKG128 in IDT documentation. Its mechanical dimensions are approximately 14 mm × 20 mm × 1.4 mm with 0.4 mm lead pitch. This package is distinct from the 208-pin fpBGA (BF208) and 256-pin BGA (BC256) variants offered in the same family.

Is the 70V3389S5PRFI rated for industrial temperature operation?

Yes, the 70V3389S5PRFI is explicitly rated for industrial temperature operation from −40°C to +85°C, as confirmed by the "Recommended Operating Temperature and Supply Voltage" table (Table 4) and AC/DC electrical specifications labeled "IND" in the datasheet. This rating applies to the "S5" speed grade and is validated across all specified timing and power parameters.

70V3389S5PRFI 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:: 1.125Mbit

Memory Organization:: 64K 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)

70V3389S5PRFI FAQ

1.How can I place an order for 70V3389S5PRFI through Aetrix?

Please submit a Request for Quotation (RFQ) for 70V3389S5PRFI 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 70V3389S5PRFI reliable?

The price and inventory of 70V3389S5PRFI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70V3389S5PRFI is usually 5 days.

3.What payment methods are accepted for 70V3389S5PRFI?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 70V3389S5PRFI transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 70V3389S5PRFI?

70V3389S5PRFI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 70V3389S5PRFI 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 70V3389S5PRFI?

For technical support, including 70V3389S5PRFI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70V3389S5PRFI requirements.

6.How does Aetrix verify that 70V3389S5PRFI is sourced from the original manufacturer or authorized distributors?

All 70V3389S5PRFI 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 70V3389S5PRFI meets industry standards.

7.What is the process for return or replacement of 70V3389S5PRFI?

All 70V3389S5PRFI units undergo pre-shipment inspection (PSI). If there is an issue with 70V3389S5PRFI, 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 70V3389S5PRFI part is unused and in its original packaging.

Return procedure for 70V3389S5PRFI:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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