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Renesas 70T3399S133BFI8
- Part No.:
- 70T3399S133BFI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 208-LFBGA
- Datasheet:
-
70T3399S133BFI8.pdf
- Description:
- IC SRAM 2MBIT PARALLEL 208CABGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,966
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Product details
Overview
70T3399S133BFI8 from Integrated Device Technology is a high-speed 2.5V synchronous dual-port static RAM with 128K × 18-bit organization (2,304Kb), 4.2ns max access time at 133MHz, industrial temperature range (–40°C to +85°C), and selectable 2.5V/3.3V I/O interface per port. It enables simultaneous read/write access to shared memory in real-time DSP, network packet buffering, and FPGA co-processor systems.
For engineers reviewing the 70T3399S133BFI8 datasheet, 70T3399S133BFI8 pinout, 70T3399S133BFI8 application, or 70T3399S133BFI8 equivalent, key selection factors include pipelined/flow-through output mode selection, dual chip enable for depth expansion, JTAG-compliant boundary scan, collision detection flag, and independent port voltage configuration via OPTL/OPTR pins.
Technical Context
This device implements true dual-port SRAM architecture with fully synchronous operation on both left and right ports, supporting concurrent access to identical memory locations without arbitration logic. Each port features independent clock (CLKL/CLKR), address (A0L–A18L / A0R–A18R), data I/O (I/O0L–I/O17L / I/O0R–I/O17R), and control signals including R/WL/R/WR, CE0/CE1, OEL/OER, UBL/UBR, LBL/LBR, ADSL/ADSR, CNTENL/CNTENR, and REPEATL/REPEATR.
It supports two output modes-pipelined (tCD2 = 4.2ns) and flow-through (tCD1 = 15ns)-selected per port via PL/FTL and PL/FTR inputs. Power management includes dual chip-enable standby (ISB1 = 140mA max at 133MHz) and sleep mode (Izz = 5–15mA) activated by ZZL/ZZR, while JTAG (TCK, TMS, TDI, TDO, TRST) complies with IEEE 1149.1 for boundary-scan testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 128K × 18-bit (2,304Kb); A17/A18 are No Connect for this variant |
| Max Clock Frequency | 133MHz (5ns cycle time in pipelined mode) |
| Access Time | 4.2ns max (pipelined output, industrial grade) |
| Supply Voltages | VDD = 2.5V ±100mV (core); VDDQL/VDDQR = 2.5V or 3.3V ±150mV (I/O, selectable per port) |
| Operating Temperature | –40°C to +85°C (industrial grade, validated for 133MHz operation) |
| Package | 256-pin BGA (BC256), 17mm × 17mm × 1.4mm, 1.0mm ball pitch |
| Interface Standards | JTAG IEEE 1149.1 compliant; LVTTL-compatible I/Os |
Pinout & Package
70T3399S133BFI8 is housed in a 256-pin Ball Grid Array (BC256) package with 17mm × 17mm body and 1.0mm ball pitch. All VDD pins require 2.5V; VDDQ pins must match OPT pin state (2.5V if OPT = VSS, 3.3V if OPT = VDD). VSS pins connect to ground. Pin A17L/A17R and A18L/A18R are No Connect per datasheet Note 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKL / CLKR | Port clock input | Synchronous edge-triggered timing reference for left/right port operations |
| A0L–A16L / A0R–A16R | Address inputs | 17-bit address bus (A17/A18 NC confirms 128K × 18 configuration) |
| I/O0L–I/O17L / I/O0R–I/O17R | Bidirectional data I/O | 18-bit parallel data path per port; byte enables (UBL/LBL, UBR/LBR) allow partial writes |
| CE0L/CE1L / CE0R/CE1R | Chip enable pair | Dual CE allows depth expansion without external logic; CE0=VIL & CE1=VIH enables port |
| R/WL / R/WR | Read/write control | Active-high write enable; determines direction of data transfer on I/O bus |
| OEL / OER | Output enable | Asynchronous control of output drivers; enables tri-state during deselect or power-down |
| PL/FTL / PL/FTR | Output mode select | VIH = pipelined (low latency), VIL = flow-through (zero-cycle latency) |
| OPTL / OPTR | I/O voltage option | VDD = 2.5V → 3.3V I/O; VSS = 0V → 2.5V I/O; sets VDDQX requirement |
| ZZL / ZZR | Sleep mode enable | VIH disables dynamic inputs (except JTAG); reduces current to 5–15mA |
| INTL / INTR | Interrupt flag | Open-drain output asserting on internal event (e.g., counter overflow, collision) |
| COLL / COLR | Collision detection | Asserts when both ports attempt simultaneous write to same address |
| TCK/TMS/TDI/TDO/TRST | JTAG test interface | IEEE 1149.1 boundary-scan support; operates independently of sleep mode |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port memory cells | Enables simultaneous, independent read/write access to identical addresses without arbitration overhead |
| Selectable pipelined or flow-through output | Pipelined mode achieves 4.2ns tCD2 for high-throughput burst transfers; flow-through avoids pipeline stalls in deterministic timing paths |
| Dual chip enables (CE0/CE1) | Supports seamless depth expansion across multiple devices without additional decode logic or timing penalties |
| Hardware collision detection | Dedicated COLL/INT flags eliminate software polling; critical for real-time inter-processor communication integrity |
| Independent per-port I/O voltage selection | OPTL/OPTR pins allow left port at 3.3V and right port at 2.5V-enabling mixed-voltage system integration |
| JTAG boundary-scan compliance | IEEE 1149.1 support enables in-circuit testability and debug visibility without requiring functional access |
Applications
| Telecom Line Card Buffering | FPGA-Based Real-Time Signal Processing |
|---|---|
|
Use Scenario: High-speed packet buffering between line interface ASIC and traffic manager in 10Gbps+ telecom line cards. IC Role / Device Role / Timing Role: Dual-port SRAM acts as zero-latency shared memory between ingress and egress processing engines. Use Value: 133MHz pipelined operation delivers 4.2ns tCD2 latency and 14Gbps aggregate bandwidth, enabling sub-microsecond packet forwarding decisions. |
Use Scenario: Shared instruction/data memory between FPGA fabric and embedded soft-core processor (e.g., MicroBlaze) in radar DSP subsystems. IC Role / Device Role / Timing Role: Provides deterministic, contention-free memory access for parallel compute pipelines and control firmware. Use Value: Collision detection flags and interrupt outputs eliminate race conditions during concurrent FPGA DMA and CPU fetch cycles. |
| Industrial Motion Controller | Avionics Data Concentrator |
|
Use Scenario: Coordinating multi-axis servo updates in CNC machines where PLC and motion engine require synchronized access to trajectory tables. IC Role / Device Role / Timing Role: Serves as time-critical shared register file with hardware-enforced atomicity for position/velocity parameters. Use Value: Industrial-grade –40°C to +85°C operation ensures reliability in uncooled control cabinets; dual CE enables modular axis expansion. |
Use Scenario: Aggregating sensor data from multiple ARINC-429 receivers and feeding processed streams to flight management system (FMS) via ARINC-664. IC Role / Device Role / Timing Role: Acts as fault-tolerant buffer with independent port voltage settings (2.5V FMS side, 3.3V sensor side). Use Value: OPTL/OPTR configurability eliminates level-shifter components; JTAG support enables DO-254-compliant production test coverage. |
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, 3.3V core & I/O, no OPT-selectable I/O voltage; 4.5ns access, 208-pin TQFP | Lacks per-port voltage flexibility and JTAG; requires external level shifters for mixed-voltage designs | Choose when board space permits TQFP and system uses uniform 3.3V signaling |
| AS7C33128PFS-133BIN | 128K × 18, 2.5V core/I/O only, no pipelined mode; 5.5ns access, 256-pin FBGA | No flow-through/pipelined mode selection; no collision detection or JTAG; lower bandwidth (11.5Gbps) | Choose for cost-sensitive industrial applications where deterministic zero-latency reads are mandatory and mixed-voltage I/O is unnecessary |
Compared with CY7C1362BV33-133AXC and AS7C33128PFS-133BIN, the 70T3399S133BFI8 uniquely combines per-port I/O voltage selection, hardware collision detection, IEEE 1149.1 JTAG, and dual-mode (pipelined/flow-through) outputs-making it optimal for safety-critical, mixed-voltage, high-bandwidth embedded systems requiring guaranteed data coherency.
Availability
70T3399S133BFI8 is available at Aetrix Electronics and suitable for telecom line card buffering, FPGA-based real-time signal processing, industrial motion control, avionics data concentration, and high-reliability embedded systems requiring stable component supply across extended temperature ranges.
Supply support for 70T3399S133BFI8 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 70T3339/19/99 family was designed specifically for high-bandwidth, low-latency inter-processor communication in real-time embedded systems-emphasizing deterministic timing, hardware coherency mechanisms, and flexible voltage interfacing.
FAQ
What is the maximum operating frequency of the 70T3399S133BFI8?
The 70T3399S133BFI8 is rated for 133MHz operation in industrial temperature range (–40°C to +85°C), achieving a 5ns clock cycle time in pipelined output mode. This frequency is validated per datasheet Table 11 (70T3339/19/99S133 version) and supported in the BC256 BGA package. Higher speeds (e.g., 166MHz/200MHz) are restricted to commercial-grade variants and incompatible packages.
Does the 70T3399S133BFI8 support independent voltage selection for each port's I/O interface?
Yes, the 70T3399S133BFI8 supports independent I/O voltage selection per port using OPTL and OPTR pins. Setting OPTL = VDD (2.5V) configures the left port for 3.3V I/O levels with VDDQL = 3.3V; setting OPTL = VSS (0V) configures it for 2.5V I/O with VDDQL = 2.5V. The same applies independently to the right port via OPTR. This capability is confirmed in Datasheet Section "Pin Names" and DC Operating Conditions Tables 5a/5b.
How does collision detection work on the 70T3399S133BFI8?
The 70T3399S133BFI8 asserts COLL (left port) or COLR (right port) when both ports attempt a write operation to the same memory address simultaneously. This hardware-level detection occurs independently of software control and is latched until cleared by subsequent read/write activity. The feature is documented in the Functional Block Diagram and Truth Table I, and enables real-time inter-processor synchronization without polling overhead.
What package type and footprint does the 70T3399S133BFI8 use?
The 70T3399S133BFI8 uses a 256-pin Ball Grid Array (BC256) package measuring 17mm × 17mm × 1.4mm with 1.0mm ball pitch. Pin A17L/A17R and A18L/A18R are No Connect, confirming its 128K × 18 configuration. This package is distinct from the 208-pin fpBGA used in other variants (e.g., BF208) and is specified in Datasheet Figure "Pin Configuration" and Notes 3–6 on page 3.
Can the 70T3399S133BFI8 operate in flow-through output mode, and what is its access latency in that mode?
Yes, the 70T3399S133BFI8 supports flow-through output mode when PL/FTL and PL/FTR are driven LOW (VIL). In this mode, data appears at the outputs after tCD1 = 15ns maximum (at 133MHz), providing zero-cycle latency for deterministic timing-critical applications. This behavior is defined in Datasheet Table 11 (tCD1 parameter) and illustrated in Timing Waveform "Flow-through Output" on page 12.
70T3399S133BFI8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 208-LFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Synchronous
- Memory Size:
- 2Mbit
- Memory Organization:
- 128K x 18
- Memory Interface:
- Parallel
- Clock Frequency:
- 133 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 4.2 ns
- Voltage - Supply:
- 2.4V ~ 2.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 208-CABGA (15x15)
70T3399S133BFI8 FAQ
1.How can I place an order for 70T3399S133BFI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 70T3399S133BFI8 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 70T3399S133BFI8 reliable?
The price and inventory of 70T3399S133BFI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70T3399S133BFI8 is usually 5 days.
3.What payment methods are accepted for 70T3399S133BFI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 70T3399S133BFI8 transactions.
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4.How is shipping managed for 70T3399S133BFI8?
70T3399S133BFI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 70T3399S133BFI8 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 70T3399S133BFI8?
For technical support, including 70T3399S133BFI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70T3399S133BFI8 requirements.
6.How does Aetrix verify that 70T3399S133BFI8 is sourced from the original manufacturer or authorized distributors?
All 70T3399S133BFI8 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 70T3399S133BFI8 meets industry standards.
7.What is the process for return or replacement of 70T3399S133BFI8?
All 70T3399S133BFI8 units undergo pre-shipment inspection (PSI). If there is an issue with 70T3399S133BFI8, 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 70T3399S133BFI8 part is unused and in its original packaging.
Return procedure for 70T3399S133BFI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
70T3399S133BFI8 Tags
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