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Renesas 70V3379S4PRFG
- Part No.:
- 70V3379S4PRFG
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 128-LQFP
- Datasheet:
-
70V3379S4PRFG.pdf
- Description:
- IC SRAM 576KBIT PARALLEL 128TQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
70V3379S4PRFG from Integrated Device Technology is a high-speed 3.3V 32K × 18-bit synchronous dual-port static RAM with pipelined output mode, true dual-port architecture enabling simultaneous read/write access to the same memory location, 7.5 ns clock cycle time (133 MHz), and selectable 3.3V/2.5V I/O interface per port. It supports industrial temperature range (–40°C to +85°C) and is used in high-bandwidth packet buffering for telecom line cards.
For engineers reviewing the 70V3379S4PRFG datasheet, 70V3379S4PRFG pinout, 70V3379S4PRFG application, or 70V3379S4PRFG equivalent, key selection criteria include pipelined read latency, dual-port counter enable/reset functionality, VDDQ voltage selectability per port, and compatibility with depth-expanded multi-chip memory banks requiring no external logic.
Technical Context
The 70V3379S4PRFG 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 operates independently of clock edges, enabling minimal write cycle times without external timing constraints.
Each port features independent OPT pins (OPTL/OPTR) that configure VDDQX supply voltage (3.3V or 2.5V), allowing mixed-voltage system interfacing. The integrated address counter-controlled by CNTENL/CNTRSTL and CNTENR/CNTRSTR-supports burst-mode sequential access without external address generation logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 32K × 18 bits (576 Kbit total); enables 18-bit parallel data paths per port for high-throughput buffering. |
| Clock Cycle Time | 7.5 ns (133 MHz); defines minimum clock period for full-speed pipelined operation with guaranteed timing margins. |
| Access Time (tCD2) | 4.2 ns max (commercial grade); clock-to-data valid delay in pipelined read mode determines real-time data availability latency. |
| I/O Voltage Support | Selectable 3.3V ±150 mV or 2.5V ±125 mV per port via OPTL/OPTR; allows direct interfacing with mixed-voltage ASICs/FPGAs. |
| Operating Temperature | –40°C to +85°C (industrial grade); validated for deployment in uncontrolled ambient environments like base station cabinets. |
| Power Supply | VDD = 3.3V ±150 mV (core); VDDQX independently configurable per port; eliminates need for level shifters in multi-supply systems. |
| Standby Current (ISB3) | 6 mA typical (full standby, CMOS-level inputs); enables low-power idle states during traffic lulls without memory retention loss. |
Pinout & Package
70V3379S4PRFG is packaged in a 208-pin fine-pitch Ball Grid Array (fpBGA, package code BF208), body size ≈17 mm × 17 mm × 1.4 mm, 1.0 mm ball pitch. Pin functions are validated per IDT DSC 4833/15 datasheet Rev. JULY 2019.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKL / CLKR | Port-synchronous clock input | Rising-edge-triggered register clock for all inputs/outputs on respective port; enables deterministic timing alignment. |
| CE0L/CE1L, CE0R/CE1R | Dual chip enable pair per port | Independent power-down control: CE0L = LOW + CE1L = HIGH disables left-port circuitry; enables depth expansion without glue logic. |
| OPTL / OPTR | I/O voltage select input | VIH (3.3V) configures corresponding port for 3.3V I/O; VIL (0V) configures for 2.5V I/O; sets VDDQL/VDDQR supply requirement. |
| ADSL / ADSR | Address strobe enable | When LOW, loads external address on next CLK rise; when HIGH, enables internal address counter increment (if CNTEN active). |
| CNTENL/CNTRSTL, CNTENR/CNTRSTR | Counter control inputs | CNTEN = LOW enables automatic address increment on each clock; CNTRST = LOW resets counter to address 0-critical for burst buffer management. |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port memory cells | Enables concurrent read and write operations to identical addresses-essential for real-time FIFO and ping-pong buffering architectures. |
| Pipelined output mode | Delivers data one clock cycle after address assertion, reducing effective read latency while maintaining 133 MHz throughput. |
| Independent per-port I/O voltage selection | Eliminates external level-shifting components when interfacing with 2.5V FPGAs and 3.3V processors in the same system. |
| Dual chip enables (CE0/CE1) | Supports seamless depth expansion of memory banks using only native signals-no additional decode logic required for 2× or 4× capacity scaling. |
| Integrated address counter with reset | Reduces host processor overhead in sequential-access applications (e.g., packet header parsing) by offloading address generation. |
Applications
| Telecom Line Card Buffering | Network Packet Switching Fabric |
|---|---|
Use Scenario: Storing and forwarding variable-length Ethernet/IP packets between ingress and egress ports in carrier-grade switches. IC Role / Device Role / Timing Role: Dual-port SRAM acts as shared buffer memory where one port accepts incoming packet data while the other simultaneously reads out for scheduling/queuing. Use Value: True dual-port architecture enables zero-cycle contention between write and read operations, sustaining line-rate throughput at 10 Gbps+. | Use Scenario: Implementing context-switch buffers in multi-stage switch fabrics handling QoS-aware traffic classification and prioritization. IC Role / Device Role / Timing Role: Provides low-latency, deterministic-access scratchpad memory for temporary storage of flow state metadata and lookup results. Use Value: 4.2 ns pipelined read access ensures metadata retrieval completes within tight pipeline stages, preserving switch fabric timing budgets. |
| Industrial PLC Data Logging | Medical Imaging Frame Buffering |
Use Scenario: Capturing sensor telemetry streams (e.g., vibration, temperature) at high sample rates in programmable logic controllers for time-stamped analysis. IC Role / Device Role / Timing Role: Serves as circular buffer memory where one port writes raw ADC samples while the other reads batches for CPU processing or SD card transfer. Use Value: Industrial temperature rating (–40°C to +85°C) and 6 mA full-standby current ensure reliable long-term operation in harsh factory environments with thermal cycling. | Use Scenario: Holding uncompressed DICOM image frames (e.g., 1024×1024×16-bit) during real-time reconstruction and display in ultrasound or MRI systems. IC Role / Device Role / Timing Role: Functions as dual-port frame buffer: one port receives pixel data from acquisition engine, second port feeds display controller at synchronized refresh rate. Use Value: 32K × 18 organization maps directly to 576 Kbit per frame; 133 MHz bandwidth supports >100 fps rendering of high-resolution medical images. |
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 | 32K × 18, 5 ns access, 3.3V-only I/O, 165-ball BGA (13 mm × 13 mm) | Lacks per-port VDDQ selectability and address counter; requires external address sequencing logic. | Preferred where strict 5 ns timing is required and system uses uniform 3.3V I/O rails. |
| AS7C33256P-10BIN | 32K × 18, 10 ns access, 3.3V core/I/O, 128-pin TQFP | No pipelined mode or address counter; asynchronous outputs increase timing complexity in high-speed designs. | Suitable for cost-sensitive industrial controls where 10 ns latency is acceptable and PCB space favors TQFP. |
Compared with CY7C1375BV33-5BC and AS7C33256P-10BIN, the 70V3379S4PRFG uniquely combines per-port I/O voltage flexibility, integrated address counter, and 4.2 ns pipelined access-enabling simpler, higher-performance memory subsystems in mixed-voltage, burst-oriented systems.
Availability
70V3379S4PRFG is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and medical imaging systems requiring stable component supply, long-lifecycle support, and verified industrial-temperature performance.
Supply support for 70V3379S4PRFG 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 70V3379S4PRFG belongs to IDT's high-speed synchronous dual-port SRAM product line, engineered specifically for low-latency, high-bandwidth buffering in packet-switched networks and real-time embedded systems demanding deterministic memory access.
FAQ
What is the maximum operating frequency of the 70V3379S4PRFG?
The 70V3379S4PRFG supports a maximum clock frequency of 133 MHz, derived from its 7.5 ns clock cycle time (tCYC2). This timing is guaranteed across the commercial temperature range (0°C to +70°C) and applies to both ports operating synchronously in pipelined mode with all control inputs meeting setup/hold requirements.
Does the 70V3379S4PRFG support independent I/O voltage levels on left and right ports?
Yes, the 70V3379S4PRFG supports independent I/O voltage selection per port via OPTL and OPTR pins. Setting OPTL to VIH (3.3V) configures the left port for 3.3V I/O operation with VDDQL = 3.3V; setting OPTR to VIL (0V) configures the right port for 2.5V I/O with VDDQR = 2.5V-enabling mixed-voltage system integration without level shifters.
How does the address counter function in the 70V3379S4PRFG?
The 70V3379S4PRFG incorporates independent address counters on each port. When ADS = HIGH and CNTEN = LOW, the counter advances on each rising CLK edge, generating sequential addresses internally. CNTRST = LOW resets the counter to address 0. This eliminates external address generation logic in burst-mode applications such as packet buffering or image line storage.
What power-saving features does the 70V3379S4PRFG offer?
The 70V3379S4PRFG provides multiple power-saving modes: full standby (ISB3 = 6 mA typ.) activates when both CE0 and CE1 are held at CMOS-inactive levels; partial standby (ISB2 = 190 mA typ.) engages when one port is disabled; and dynamic current scales with activity (IDD = 285 mA typ. at 133 MHz). These modes reduce power during traffic lulls without compromising data retention.
Is the 70V3379S4PRFG pin-compatible with other members of the IDT70V33xx family?
The 70V3379S4PRFG shares the same 208-pin fpBGA (BF208) footprint and signal mapping with other speed grades (e.g., 70V3379S5PRFG, 70V3379S6PRFG) and density variants like 70V3389 (64K × 18), enabling drop-in upgrades within the same package. However, pin compatibility with 128-pin TQFP or 256-pin BGA variants is not supported due to differing pin counts and layouts.
70V3379S4PRFG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 128-LQFP
- Packaging:
- Tray
- Product Status:
- Active
- 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:
- 4.2 ns
- Voltage - Supply:
- 3.15V ~ 3.45V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 128-TQFP (14x20)
70V3379S4PRFG FAQ
1.How can I place an order for 70V3379S4PRFG through Aetrix?
Please submit a Request for Quotation (RFQ) for 70V3379S4PRFG 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 70V3379S4PRFG reliable?
The price and inventory of 70V3379S4PRFG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70V3379S4PRFG is usually 5 days.
3.What payment methods are accepted for 70V3379S4PRFG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 70V3379S4PRFG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 70V3379S4PRFG?
70V3379S4PRFG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 70V3379S4PRFG 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 70V3379S4PRFG?
For technical support, including 70V3379S4PRFG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70V3379S4PRFG requirements.
6.How does Aetrix verify that 70V3379S4PRFG is sourced from the original manufacturer or authorized distributors?
All 70V3379S4PRFG 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 70V3379S4PRFG meets industry standards.
7.What is the process for return or replacement of 70V3379S4PRFG?
All 70V3379S4PRFG units undergo pre-shipment inspection (PSI). If there is an issue with 70V3379S4PRFG, 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 70V3379S4PRFG part is unused and in its original packaging.
Return procedure for 70V3379S4PRFG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
70V3379S4PRFG Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
Microchip Technology
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24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
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