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Renesas 70V3319S133BFI
- Part No.:
- 70V3319S133BFI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 208-LFBGA
- Datasheet:
-
70V3319S133BFI.pdf
- Description:
- IC SRAM 4.5MBIT PAR 208CABGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,510
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Product details
Overview
70V3319S133BFI 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 70V3319S133BFI datasheet, 70V3319S133BFI pinout, 70V3319S133BFI application, or 70V3319S133BFI equivalent, key selection criteria include industrial temperature support (−40°C to +85°C), dual chip enable depth expansion capability, JTAG-compliant test features (excluded only in TQFP), and strict 1.7ns address setup/0.5ns hold timing at 133MHz.
Technical Context
This device implements full synchronous operation on both ports with registered address, data, and control inputs - eliminating external latch requirements and enabling deterministic timing at 133MHz. Its dual-cycle deselect (DCD) feature ensures clean bus release during pipelined output transitions, while separate byte enables (UBL/LBL, UBR/LBR) support multiplexed 18-bit bus matching without glue logic.
The internal address counter with ADSR/ADSL strobe, CNTENR/CNTENL enable, and REPEATR/REPEATL repeat functionality allows burst-mode sequential addressing without external sequencers. Core voltage is fixed at 3.3V ±150mV, while I/O voltage per port is independently configurable via OPTL/OPTR pins to either 3.3V or 2.5V - supporting mixed-voltage system integration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 256K × 18 bits (4.5 Mbit total); enables single-cycle access to 18-bit parallel data paths on both ports |
| Max Clock Frequency | 133MHz (7.5ns cycle time); guarantees deterministic timing for real-time control loops and packet processing |
| Access Time (tCD2) | 4.2ns max clock-to-data-out in pipelined mode; eliminates wait states in high-throughput FIFO applications |
| Operating Temperature | −40°C to +85°C industrial grade; qualified for base station RF modules and industrial PLC backplanes |
| I/O Voltage Support | Selectable 3.3V or 2.5V per port via OPT pins; allows direct interfacing to legacy 3.3V FPGAs and modern 2.5V ASICs |
| Power Supply | Single 3.3V ±150mV core (VDD); independent VDDQL/VDDQR supplies per port; reduces noise coupling between ports |
| Standby Current (ISB3) | 15–40mA max full standby (both ports deselected); enables low-power sleep modes in always-on network equipment |
Pinout & Package
70V3319S133BFI is packaged in a 128-pin Thin Quad Flatpack (TQFP) with 0.4mm lead pitch and 14mm × 20mm body size. The package excludes JTAG and PL/FT mode selection due to pin count constraints - device operates exclusively in pipelined output mode on both ports.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKL / CLKR | Port-synchronous clock input | Registers all address, data, and control signals on rising edge; enables fully synchronous dual-port operation |
| CE0L/CE1L, CE0R/CE1R | Dual chip enables per port | Independent port activation; allows depth expansion without external logic by cascading CE lines across devices |
| UBL/LBL, UBR/LBR | Upper/lower byte enables (9–17 / 0–8) | Enables partial-word writes to 9-bit sub-buses; supports 16-bit microprocessor compatibility and byte-level data integrity |
| ADSL / ADSR | Address strobe enable | Latches current address into internal counter; enables burst-mode sequential addressing without external address generation |
| OPTL / OPTR | I/O voltage select | Configures VDDQL/VDDQR interface level: VIH = 3.3V, VIL = 2.5V; permits mixed-voltage system integration |
| R/WL / R/WR | Read/write direction control | Active-high write enable; controls data flow direction per port independently for asymmetric buffer applications |
Key Features
| Feature | Design Value |
|---|---|
| True Dual-Port Memory Cells | Enables concurrent read and write to identical addresses - critical for lock-free inter-processor communication in SMP systems |
| Dual-Cycle Deselect (DCD) | Guarantees clean bus release after pipelined reads, preventing bus contention in multi-device depth-expanded configurations |
| Independent I/O Voltage Control | Per-port OPT pins allow one port to interface with 3.3V FPGAs while the other connects to 2.5V DSPs - no level shifters required |
| Address Counter with Repeat | ADSL/ADSR + CNTENL/CNTENR + REPEATL/REPEATR enable hardware-accelerated burst transfers up to 256K words without CPU intervention |
| Self-Timed Write Cycle | Eliminates external write pulse generation; simplifies timing closure in high-speed designs by embedding write latency internally |
Applications
| Telecom Packet Buffering | FPGA Co-Processor Interconnect |
|---|---|
Use Scenario: Storing incoming/outgoing Ethernet frames in a line card where ingress and egress paths require independent, concurrent access to shared memory. IC Role / Device Role / Timing Role: Dual-port SRAM acting as zero-latency, non-blocking frame buffer - left port accepts packets from MAC, right port feeds packets to switch fabric. Use Value: 133MHz pipelined operation delivers 2.4 Gbps aggregate bandwidth (18-bit × 133MHz), eliminating frame loss under full line-rate traffic. | Use Scenario: Providing shared instruction/data memory between a Xilinx Virtex FPGA and a TI C6000 DSP in a radar signal processing subsystem. IC Role / Device Role / Timing Role: Synchronous memory bridge enabling deterministic data exchange - FPGA writes processed results, DSP reads for next-stage analysis. Use Value: Independent 3.3V/2.5V I/O per port matches FPGA's 3.3V banks and DSP's 2.5V interface, avoiding level-shifter BOM cost and timing skew. |
| Industrial PLC Backplane | Real-Time Media Streaming |
Use Scenario: Serving as shared configuration and status memory between redundant CPU modules in an IEC 61508-certified safety controller. IC Role / Device Role / Timing Role: Fault-tolerant memory resource with dual chip enables allowing hot-swappable CPU pairs to access identical register maps simultaneously. Use Value: Industrial temperature rating (−40°C to +85°C) and 40mA max full-standby current ensure reliable operation in uncooled control cabinets. | Use Scenario: Buffering uncompressed HD video frames between a sensor interface ASIC and a video compression engine in broadcast equipment. IC Role / Device Role / Timing Role: High-bandwidth frame store supporting 1080p60 YUV422 streams - left port ingests pixel data, right port supplies compressed blocks to encoder. Use Value: 4.2ns tCD2 and 1.7ns address setup meet sub-8ns timing budgets for 133MHz pixel clocks, preventing frame jitter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C1362BV33-133AXI | 128K × 18 organization; 133MHz max; 3.3V-only I/O; no address counter or REPEAT function | Lacks burst-addressing hardware; requires external counter logic for sequential access | Choose when memory depth ≤128K suffices and system already implements address sequencing externally |
| AS7C33256PFS-133BIN | 256K × 18; 133MHz; 3.3V core/I/O; no OPT pin - fixed 3.3V interface; no JTAG support in TQFP | Fixed I/O voltage limits mixed-voltage integration; lacks dual-cycle deselect for clean bus release | Choose when cost sensitivity outweighs need for voltage flexibility and advanced bus control features |
Compared with CY7C1362BV33-133AXI and AS7C33256PFS-133BIN, the 70V3319S133BFI uniquely combines 256K depth, per-port voltage selection, hardware address counting, and dual-cycle deselect - making it optimal for complex, mixed-voltage, burst-oriented embedded systems.
Availability
70V3319S133BFI is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and real-time media processing requiring stable component supply across extended product lifecycles.
Supply support for 70V3319S133BFI 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, and RF power solutions for communications and computing markets.
The 70V33xx family was designed specifically for high-bandwidth, low-latency inter-processor and FPGA-ASIC interconnect applications demanding true dual-port concurrency, industrial reliability, and flexible voltage interfacing.
FAQ
What is the maximum operating frequency supported by the 70V3319S133BFI?
The 70V3319S133BFI is rated for 133MHz operation (7.5ns clock cycle time) across the industrial temperature range (−40°C to +85°C). This is confirmed in the AC Electrical Characteristics table (Table 11) and applies to both pipelined and flow-through output modes. The device achieves this timing with 1.7ns address setup and 0.5ns hold requirements, enabling robust timing margin in high-speed designs.
Does the 70V3319S133BFI support JTAG boundary scan testing?
No, the 70V3319S133BFI in the 128-pin TQFP package (denoted by "BFI" suffix) does not support JTAG. As explicitly stated in the datasheet notes (page 4, Note 9), JTAG is excluded from PKG128 due to insufficient pin count. JTAG functionality is only available in the 208-pin fpBGA and 256-pin BGA variants of the 70V3319/99 family.
Can the left and right ports of the 70V3319S133BFI operate at different I/O voltages?
Yes, the 70V3319S133BFI 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 operation, while setting OPTR to VIL (0V) configures the right port for 2.5V operation - enabling direct interfacing with mixed-voltage SoCs without external level shifters.
What is the purpose of the ADSL and ADSR pins on the 70V3319S133BFI?
The ADSL (Address Strobe Left) and ADSR (Address Strobe Right) pins latch the current address bus value into the internal address counter on the rising edge of the respective port clock. When used with CNTENL/CNTENR and REPEATL/REPEATR, they enable hardware-accelerated burst-mode sequential addressing - eliminating the need for external counters or CPU-driven address incrementing during high-speed data transfers.
Is the 70V3319S133BFI pin-compatible with other members of the 70V3319/99 family?
The 70V3319S133BFI shares identical pinout and electrical characteristics with other 128-pin TQFP variants in the 70V3319/99 family (e.g., 70V3319S166BFI), differing only in speed grade and temperature screening. However, it is not pin-compatible with the 208-pin fpBGA or 256-pin BGA packages due to differing pin counts and layouts - PCB redesign is required for package migration.
70V3319S133BFI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 208-LFBGA
- Packaging:
- Tray
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 208-CABGA (15x15)
70V3319S133BFI FAQ
1.How can I place an order for 70V3319S133BFI through Aetrix?
Please submit a Request for Quotation (RFQ) for 70V3319S133BFI 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 70V3319S133BFI reliable?
The price and inventory of 70V3319S133BFI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70V3319S133BFI is usually 5 days.
3.What payment methods are accepted for 70V3319S133BFI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 70V3319S133BFI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 70V3319S133BFI?
70V3319S133BFI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 70V3319S133BFI 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 70V3319S133BFI?
For technical support, including 70V3319S133BFI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70V3319S133BFI requirements.
6.How does Aetrix verify that 70V3319S133BFI is sourced from the original manufacturer or authorized distributors?
All 70V3319S133BFI 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 70V3319S133BFI meets industry standards.
7.What is the process for return or replacement of 70V3319S133BFI?
All 70V3319S133BFI units undergo pre-shipment inspection (PSI). If there is an issue with 70V3319S133BFI, 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 70V3319S133BFI part is unused and in its original packaging.
Return procedure for 70V3319S133BFI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
70V3319S133BFI Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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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
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
Microchip Technology
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AT24C04C-SSHM-T
Microchip Technology
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24LC01BT-I/SN
Microchip Technology
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24AA02UIDT-I/OT
Microchip Technology
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AT24C08C-STUM-T
Microchip Technology
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