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Renesas 70V3319S133BCI
- Part No.:
- 70V3319S133BCI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 256-LBGA
- Datasheet:
-
70V3319S133BCI.pdf
- Description:
- IC SRAM 4.5MBIT PAR 256CABGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,437
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Product details
Overview
70V3319S133BCI 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. It is designed for real-time data buffering in telecom line cards and network packet processors.
For engineers reviewing the 70V3319S133BCI datasheet, 70V3319S133BCI pinout, 70V3319S133BCI application, or 70V3319S133BCI equivalent, key selection criteria include its industrial temperature range (–40°C to +85°C), dual chip enable support for depth expansion, pipelined output mode only (no flow-through on TQFP), and JTAG compliance exclusion in this 128-pin TQFP package.
Technical Context
This device implements fully synchronous operation on both ports with registered address, data, and control inputs-enabling 1.7ns setup and 0.5ns hold times at 166MHz. Its self-timed write architecture minimizes cycle time dependency on external timing margins.
The memory array uses true dual-port cells with separate byte enables (UBL/LBL and UBR/LBR) for multiplexed bus compatibility, and includes counter-enable and repeat features for burst address generation without external logic. The OPTL/OPTR pins independently configure each port's I/O voltage (3.3V or 2.5V), while core VDD remains fixed at 3.3V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 256K × 18 bits (4.5 Mbit total); supports independent concurrent access on left/right ports |
| Max Clock Frequency | 133 MHz (7.5 ns cycle time); validated for industrial temperature range (–40°C to +85°C) |
| Access Time | 4.2 ns (clock-to-data-out, pipelined mode); enables tight timing closure in high-speed FPGA-ASIC interconnects |
| I/O Voltage Support | Selectable 3.3V or 2.5V per port via OPTL/OPTR pins; allows mixed-voltage system interfacing |
| Operating Temperature | Industrial grade: –40°C to +85°C; suitable for carrier-grade networking and industrial control environments |
| Package | 128-pin TQFP (14 mm × 20 mm); no JTAG or PL/FT mode support due to pin count limitation |
| Power Supply | Core: 3.3V ±150 mV (VDD); I/O: 3.3V ±150 mV or 2.5V ±100 mV (VDDQL/VDDQR) |
Pinout & Package
70V3319S133BCI is housed in a 128-pin Thin Quad Flatpack (TQFP) package measuring approximately 14 mm × 20 mm × 1.4 mm. All VDD pins require connection to 3.3V; VDDQL/VDDQR must match OPTL/OPTR logic levels (3.3V if VIH, 2.5V if VIL). JTAG and Flow-Through mode are not supported in this package variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKL / CLKR | Port-synchronous clock input | Registers all address/data/control inputs on rising edge; enables full synchronous operation per port |
| CE0L/CE1L, CE0R/CE1R | Dual chip enable inputs | Allow depth expansion without external logic; CE0X = VIL & CE1X = VIH enables port X |
| UBL/LBL, UBR/LBR | Upper/lower byte enable | Enable I/O[9–17] or I/O[0–8] independently; supports 9-bit sub-word writes and bus matching |
| R/WL / R/WR | Read/write control | Synchronous active-high signal; controls direction of data transfer on respective port |
| A0L–A17L, A0R–A17R | Address inputs | 18-bit address bus per port; A17 is no-connect for IDT70V3399 but functional here for 256K addressing |
| I/O0L–I/O17L, I/O0R–I/O17R | Bidirectional data bus | 18-bit parallel interface per port; supports unidirectional or bidirectional burst transfers |
| OPTL / OPTR | I/O voltage select | DC-level control: VIH → 3.3V I/O operation; VIL → 2.5V I/O operation; independent per port |
| OEL / OER | Output enable | Asynchronous control; places outputs in high-impedance state regardless of clock phase |
Key Features
| Feature | Design Value |
|---|---|
| True Dual-Port Memory Cells | Enables simultaneous read/write to identical addresses from left and right ports-critical for real-time FIFO and ping-pong buffering |
| Pipelined Output Mode Only (TQFP) | Fixed 1-cycle latency output path; eliminates need for external pipeline registers in high-speed control loops |
| Dual Chip Enables per Port | Supports seamless depth expansion across multiple devices without address decoding logic or glue ICs |
| Independent I/O Voltage Selection | OPTL/OPTR pins allow one port to interface with 3.3V FPGA logic while the other connects to 2.5V ASIC subsystems |
| Counter Enable & Repeat Functions | Hardware address counter with repeat reset enables burst sequential access without CPU intervention or external counters |
Applications
| Telecom Line Card Buffering | Network Packet Processor Interleaving |
|---|---|
Use Scenario: Storing incoming/outgoing ATM or Ethernet frames in carrier-grade line cards requiring zero-latency port arbitration. IC Role / Device Role / Timing Role: Dual-port SRAM acts as shared buffer between ingress PHY and egress MAC, with left port handling receive and right port handling transmit. Use Value: Simultaneous access eliminates arbitration delays; 4.2ns tCD2 ensures deterministic latency for jitter-sensitive voice-over-IP traffic. | Use Scenario: Interleaving packet header and payload data streams between classification engine and forwarding unit in multi-gigabit routers. IC Role / Device Role / Timing Role: Serves as low-latency crossbar memory where one port ingests parsed headers and the other feeds reconstructed packets to egress queues. Use Value: Independent 133MHz clocks per port enable asynchronous domain bridging; byte enables allow partial writes without corrupting adjacent fields. |
| FPGA-Based Real-Time Control | Digital Signal Processing Co-Processor Interface |
Use Scenario: Providing synchronized data exchange between FPGA fabric and external DSP or microcontroller in motor control systems. IC Role / Device Role / Timing Role: Acts as deterministic handshake memory: FPGA writes sensor data to left port while MCU reads via right port during dedicated time slots. Use Value: Industrial temperature rating ensures reliability in factory-floor enclosures; pipelined outputs align with FPGA register stages for timing closure. | Use Scenario: Offloading FFT coefficient storage and intermediate result buffering between baseband processor and RF transceiver in wireless infrastructure. IC Role / Device Role / Timing Role: Dual-port SRAM buffers time-domain samples (left port) and frequency-domain outputs (right port) with no software-managed contention. Use Value: 18-bit width matches common DSP word size; separate byte enables support 9-bit complex sample packing without wasted bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C1362BV33-133BZI | 128K × 18 organization; 133MHz max; 3.3V-only I/O (no 2.5V option); 208-pin BGA package | Lacks independent I/O voltage selection; requires PCB redesign for BGA footprint and thermal management | Select when system uses only 3.3V logic and board layout accommodates larger BGA package |
| IDT70V27L15PF8 | 128K × 16 organization; 15ns access; 3.3V core/I/O; 100-pin TQFP; no counter/repeat features | Lower density and speed; missing address counter and byte-enable granularity; simpler control set | Choose for cost-sensitive industrial controllers where 133MHz throughput and burst addressing are unnecessary |
Compared with CY7C1362BV33-133BZI and IDT70V27L15PF8, the 70V3319S133BCI uniquely supports per-port 2.5V/3.3V I/O selection and hardware address counting-making it optimal for mixed-voltage, high-throughput embedded systems requiring minimal external logic.
Availability
70V3319S133BCI is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and high-speed data acquisition systems requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature performance.
Supply support for 70V3319S133BCI 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 engineered for high-bandwidth, low-latency memory interfacing in synchronous digital systems-particularly targeting telecom switching fabrics, packet processing engines, and real-time control subsystems.
FAQ
What is the maximum operating frequency of the 70V3319S133BCI?
The 70V3319S133BCI is rated for 133MHz operation (7.5ns clock cycle time) across the full industrial temperature range (–40°C to +85°C). This frequency is validated with pipelined output mode and applies to both left and right ports independently. It does not support flow-through mode in the 128-pin TQFP package.
Does the 70V3319S133BCI support JTAG boundary scan?
No, the 70V3319S133BCI in the 128-pin TQFP package does not support JTAG boundary scan. The datasheet explicitly states that JTAG is excluded from PKG128 due to insufficient pin count. JTAG functionality is only available in the 208-pin and 256-pin BGA variants of the 70V3319/99 family.
Can the left and right ports of the 70V3319S133BCI operate at different I/O voltages?
Yes, the 70V3319S133BCI supports independent I/O voltage selection per port via OPTL and OPTR pins. Setting OPTL to VIH configures the left port for 3.3V I/O operation (requiring VDDQL = 3.3V), while setting OPTR to VIL configures the right port for 2.5V I/O (requiring VDDQR = 2.5V). This enables mixed-voltage system integration without level shifters.
What is the function of the REPEATL and REPEATR signals in the 70V3319S133BCI?
The REPEATL and REPEATR signals reset the internal address counter to the last valid address loaded via ADSL or ADSR, respectively. When asserted, they cause the counter to repeat the most recently latched address-enabling efficient burst reads/writes without continuous address bus updates. This feature reduces control overhead in streaming applications like video frame buffering.
Is the 70V3319S133BCI pin-compatible with other members of the 70V3319/99 family?
No, the 70V3319S133BCI is not pin-compatible with other 70V3319/99 variants due to package-specific constraints. While the 208-pin fpBGA and 256-pin BGA versions support JTAG and PL/FT mode selection, the 128-pin TQFP version (70V3319S133BCI) omits those pins entirely. Pin assignments differ across packages, and direct substitution requires PCB redesign.
70V3319S133BCI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 256-LBGA
- Packaging:
- Tray
- Product Status:
- Active
- 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:
- 256-CABGA (17x17)
70V3319S133BCI FAQ
1.How can I place an order for 70V3319S133BCI through Aetrix?
Please submit a Request for Quotation (RFQ) for 70V3319S133BCI 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 70V3319S133BCI reliable?
The price and inventory of 70V3319S133BCI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70V3319S133BCI is usually 5 days.
3.What payment methods are accepted for 70V3319S133BCI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 70V3319S133BCI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 70V3319S133BCI?
70V3319S133BCI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 70V3319S133BCI 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 70V3319S133BCI?
For technical support, including 70V3319S133BCI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70V3319S133BCI requirements.
6.How does Aetrix verify that 70V3319S133BCI is sourced from the original manufacturer or authorized distributors?
All 70V3319S133BCI 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 70V3319S133BCI meets industry standards.
7.What is the process for return or replacement of 70V3319S133BCI?
All 70V3319S133BCI units undergo pre-shipment inspection (PSI). If there is an issue with 70V3319S133BCI, 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 70V3319S133BCI part is unused and in its original packaging.
Return procedure for 70V3319S133BCI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
70V3319S133BCI Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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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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