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Renesas 70V3319S133PRF8
- Part No.:
- 70V3319S133PRF8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 128-LQFP
- Datasheet:
-
70V3319S133PRF8.pdf
- Description:
- IC SRAM 4.5MBIT PARALLEL 128TQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
70V3319S133PRF8 from Integrated Device Technology is a high-speed 256K × 18-bit synchronous dual-port SRAM with true dual-port architecture enabling simultaneous read/write access to the same memory location from independent left and right ports. It operates at 133MHz (7.5ns cycle time), supports selectable 3.3V or 2.5V I/O interfaces per port, and delivers 4.2ns clock-to-data-out in pipelined mode - ideal for real-time packet buffering in telecom line cards and FPGA co-processor interconnects.
For engineers reviewing the 70V3319S133PRF8 datasheet, 70V3319S133PRF8 pinout, 70V3319S133PRF8 application, or 70V3319S133PRF8 equivalent, key selection criteria include its 128-pin TQFP package with pipelined-only output mode, industrial temperature support (−40°C to +85°C), dual chip enable depth expansion capability, and JTAG-compatibility exclusion due to pin count constraints.
Technical Context
The 70V3319S133PRF8 implements fully synchronous operation on both ports with registered address, data, and control inputs - achieving 1.7ns setup and 0.5ns hold times at 133MHz. Its dual-port memory array uses dedicated input/output registers per port, enabling burst-mode unidirectional or bidirectional data flow without external latching.
It features independent voltage domain control via OPTL/OPTR pins, allowing left and right ports to operate at mismatched I/O voltages (3.3V/2.5V), while core logic remains fixed at 3.3V. Address counter functions (CNTEN/REPEAT/ADSL) provide autonomous sequential addressing, eliminating host CPU overhead in streaming applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 256K × 18 bits (4.5 Mbit total); enables 18-bit parallel data paths for DSP/FPGA interfacing |
| Max Clock Frequency | 133 MHz (7.5 ns cycle time); supports deterministic timing in real-time control loops |
| Access Time | 4.2 ns clock-to-data-out (pipelined mode); ensures sub-5ns latency for time-critical reads |
| I/O Voltage Support | Selectable 3.3V or 2.5V per port via OPT pins; allows mixed-voltage system integration without level shifters |
| Operating Temperature | −40°C to +85°C industrial grade; qualified for base station and industrial automation environments |
| Power Supply | 3.3V ±150 mV core (VDD); separate VDDQL/VDDQR rails for I/O domains; reduces noise coupling between ports |
| Standby Current | 15 mA full standby (ISB3); enables low-power idle states in always-on network equipment |
Pinout & Package
70V3319S133PRF8 is housed in a 128-pin Thin Quad Flatpack (TQFP) package measuring 14 mm × 20 mm × 1.4 mm, with 0.5 mm lead pitch. The package excludes JTAG and PL/FT select functionality due to pin count limitations - device operates exclusively in pipelined output mode on both ports.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKL / CLKR | Port-synchronous clock inputs | Independent clocks allow asynchronous operation between ports; critical for bridging mismatched clock domains |
| CE0L/CE1L, CE0R/CE1R | Dual chip enables per port | Enables seamless depth expansion across multiple devices without external decode logic |
| UBL/LBL, UBR/LBR | Upper/lower byte enables (I/O9–17, I/O0–8) | Per-byte write control permits partial-word updates - essential for protocol header manipulation |
| ADSL / ADSR | Address strobe enable | Latches address on rising clock edge; enables auto-incrementing counter mode when combined with CNTEN/REPEAT |
| OPTL / OPTR | I/O voltage select inputs | DC-level configuration pins that set VDDQL/VDDQR operating voltage (3.3V or 2.5V) prior to signal assertion |
| R/WL / R/WR | Read/write direction control | Synchronous active-high control; determines data flow direction on each port independently |
Key Features
| Feature | Design Value |
|---|---|
| True Dual-Port Memory Cells | Enables concurrent read and write to identical addresses - eliminates arbitration logic in shared-memory multiprocessor systems |
| Dual Cycle Deselect (DCD) | Prevents bus contention during rapid chip enable toggling by enforcing two-cycle deactivation - improves reliability in burst-mode traffic |
| Self-Timed Write | Internal write timing control eliminates need for external write pulse generation - simplifies FPGA interface design |
| Separate Byte Controls | Independent upper/lower byte enables per port support 9-bit or 18-bit data alignment - matches legacy bus widths and modern packet formats |
| Automatic Power Down | CE0/CE1-driven standby mode reduces dynamic current to 15 mA - extends thermal margin in dense PCB layouts |
Applications
| Telecom Packet Buffering | FPGA-CPU Co-Processing Interface |
|---|---|
Use Scenario: Storing and forwarding variable-length Ethernet/IP packets in line cards with strict jitter requirements. IC Role / Device Role / Timing Role: Dual-port SRAM acts as zero-latency, non-blocking buffer between ingress and egress MACs - left port accepts incoming frames, right port serves outgoing scheduler. Use Value: 4.2ns pipelined access and 133MHz throughput ensure sub-microsecond frame turnaround, meeting ITU-T G.8261 jitter tolerance. | Use Scenario: High-bandwidth data exchange between Xilinx Kintex FPGA and ARM Cortex-A9 processor in embedded vision systems. IC Role / Device Role / Timing Role: Shared memory resource enabling lock-free producer-consumer communication - FPGA writes processed image tiles, CPU reads for display/compression. Use Value: Independent 3.3V/2.5V I/O domains eliminate level-shifter components; 18-bit width matches FPGA native data path width. |
| Digital Signal Processing (DSP) Data Exchange | Industrial Motion Controller Memory Bridge |
Use Scenario: Real-time coefficient swapping and sample buffering between TI C66x DSP cores in radar beamforming subsystems. IC Role / Device Role / Timing Role: Synchronous dual-port RAM provides deterministic, low-jitter memory access for time-critical FFT and filter operations across dual-core DSP. Use Value: 1.7ns setup/0.5ns hold timing margins guarantee reliable operation at 133MHz under worst-case voltage/temperature conditions. | Use Scenario: Interfacing Beckhoff CX9020 controller with third-party servo drive modules requiring synchronized position/velocity updates. IC Role / Device Role / Timing Role: Memory bridge synchronizing motion profile data between controller's real-time OS and drive firmware - left port writes trajectory points, right port reads execution status. Use Value: Industrial −40°C to +85°C rating ensures uninterrupted operation in factory-floor enclosures; dual chip enables simplify multi-axis expansion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C1362BV33-133AXC | 128K × 18 organization (half capacity); 133MHz max; 3.3V-only I/O; no OPT pin voltage selection | Lacks per-port voltage flexibility and address counter features; suitable only for fixed 3.3V systems with lower memory density needs | Choose when board space is constrained and 256K capacity is unnecessary - avoids redesign for voltage domain isolation |
| IDT70V9369S133PFGI | 256K × 16 organization; 133MHz; 3.3V/2.5V I/O; 208-pin BGA package; includes JTAG support | Wider availability of JTAG debug interface; larger footprint but better thermal performance; 16-bit vs. 18-bit data width | Prefer for new designs requiring boundary-scan testability or higher thermal headroom - requires PCB layout change |
Compared with CY7C1362BV33-133AXC and IDT70V9369S133PFGI, the 70V3319S133PRF8 uniquely combines 256K × 18 density, 128-pin TQFP compactness, and per-port I/O voltage selection - making it optimal for cost-sensitive, space-constrained industrial networking upgrades where JTAG is nonessential.
Availability
70V3319S133PRF8 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial motion control, and FPGA-based embedded vision systems requiring stable component supply across extended product lifecycles.
Supply support for 70V3319S133PRF8 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 sensor solutions for communications, computing, and industrial markets.
The 70V3319S133PRF8 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 70V3319S133PRF8?
The 70V3319S133PRF8 is rated for 133MHz operation, corresponding to a 7.5ns clock cycle time in pipelined mode. This specification applies across the full industrial temperature range (−40°C to +85°C) and is validated with 3.3V core supply and either 3.3V or 2.5V I/O voltage. The device does not support 166MHz operation - that speed grade is reserved for the 70V3319S166 variant.
Does the 70V3319S133PRF8 support flow-through output mode?
No, the 70V3319S133PRF8 in the 128-pin TQFP package does not support flow-through output mode. Per the datasheet note on page 4, "PIPE/FT option in PKG128 is not supported due to limitation in pin count. Device is pipelined outputs only on each port." All timing parameters and functional behavior assume pipelined operation, including tCD2 = 4.2ns clock-to-data-out.
Can the left and right ports of the 70V3319S133PRF8 operate at different I/O voltages?
Yes, the 70V3319S133PRF8 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 levels with VDDQL = 3.3V; setting OPTR to VIL (0V) configures the right port for 2.5V I/O levels with VDDQR = 2.5V. This enables direct interfacing with mixed-voltage SoCs without external level shifters.
Is JTAG debugging supported on the 70V3319S133PRF8?
No, JTAG is not supported on the 70V3319S133PRF8 in the 128-pin TQFP package. As stated in the datasheet notes on pages 4 and 5, "Due to limited pin count, JTAG is not supported on the 128-pin TQFP package." The TQFP variant omits TDI, TDO, TCK, TMS, and TRST pins required for IEEE 1149.1 compliance.
What is the purpose of the ADSL and ADSR pins on the 70V3319S133PRF8?
The ADSL and ADSR (Address Strobe Enable) pins on the 70V3319S133PRF8 latch the current address into the internal address counter on the rising edge of the respective port's clock. When used with CNTEN and REPEAT signals, they enable autonomous sequential addressing - allowing the device to increment through memory locations without continuous host address bus updates, which is critical for streaming data applications.
70V3319S133PRF8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 128-LQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Synchronous
- Memory Size:
- 4.5Mbit
- Memory Organization:
- 256K x 18
- Memory Interface:
- Parallel
- Clock Frequency:
- 133 MHz
- 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)
70V3319S133PRF8 FAQ
1.How can I place an order for 70V3319S133PRF8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 70V3319S133PRF8 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 70V3319S133PRF8 reliable?
The price and inventory of 70V3319S133PRF8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70V3319S133PRF8 is usually 5 days.
3.What payment methods are accepted for 70V3319S133PRF8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 70V3319S133PRF8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 70V3319S133PRF8?
70V3319S133PRF8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 70V3319S133PRF8 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 70V3319S133PRF8?
For technical support, including 70V3319S133PRF8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70V3319S133PRF8 requirements.
6.How does Aetrix verify that 70V3319S133PRF8 is sourced from the original manufacturer or authorized distributors?
All 70V3319S133PRF8 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 70V3319S133PRF8 meets industry standards.
7.What is the process for return or replacement of 70V3319S133PRF8?
All 70V3319S133PRF8 units undergo pre-shipment inspection (PSI). If there is an issue with 70V3319S133PRF8, 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 70V3319S133PRF8 part is unused and in its original packaging.
Return procedure for 70V3319S133PRF8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
70V3319S133PRF8 Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
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AT24C02C-SSHM-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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