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Renesas 70V3399S133BF8
- Part No.:
- 70V3399S133BF8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 208-LFBGA
- Datasheet:
-
70V3399S133BF8.pdf
- Description:
- IC SRAM 2MBIT PARALLEL 208CABGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
70V3399S133BF8 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 used in real-time packet buffering for telecom line cards requiring deterministic latency and concurrent data path arbitration.
For engineers reviewing the 70V3399S133BF8 datasheet, 70V3399S133BF8 pinout, 70V3399S133BF8 application, or 70V3399S133BF8 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-disabled configuration due to pin count constraints.
Technical Context
This device implements fully synchronous dual-port operation with registered address, control, and data inputs on both ports-enabling minimal setup/hold times (1.7ns setup, 0.5ns hold @133MHz) and 6Gbps aggregate bandwidth. Its internal counter logic supports auto-incrementing address generation via ADS, CNTEN, and REPEAT signals, eliminating external address sequencing logic.
The core runs at fixed 3.3V (±150mV), while each port's I/O voltage is independently configurable to 3.3V or 2.5V via OPTL/OPTR pins and corresponding VDDQL/VDDQR supplies. A17 is a no-connect pin, confirming the actual memory depth is 128K × 18 for this variant despite the 256K × 18 family designation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 128K × 18 bits (A17 is NC; effective depth = 131,072 words) |
| Max Clock Frequency | 133MHz - enables 7.5ns cycle time for pipelined operation |
| Access Time (tCD2) | 4.2ns max - defines worst-case latency from CLK to valid data out in pipelined mode |
| I/O Voltage Support | Per-port selectable 3.3V or 2.5V - allows mixed-voltage system interfacing without level shifters |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade embedded networking equipment |
| Power Supply | Core: 3.3V ±150mV; I/O: 2.5V ±100mV or 3.3V ±150mV - decoupled domains reduce noise coupling |
| Standby Current (ISB3) | 15–40mA - ultra-low full-standby power when both ports deselected with CMOS-level inputs |
Pinout & Package
70V3399S133BF8 is housed in a 128-pin Thin Quad Flatpack (TQFP) measuring 14mm × 20mm × 1.4mm, with 0.5mm lead pitch. The package supports surface-mount reflow and is RoHS-compliant (Green part). Due to pin count limitations, JTAG and PL/FT mode selection are not supported; the 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/control/data on rising edge; determines timing domain for respective port |
| CE0L/CE1L, CE0R/CE1R | Dual chip enables per port | Enable depth expansion without external logic: CE0X=VIL & CE1X=VIH activates port X |
| UBL/LBL, UBR/LBR | Upper/lower byte enables (I/O9–17, I/O0–8) | Allow independent 9-bit byte writes per port; critical for partial-word bus matching |
| ADSL / ADSR | Address strobe enable | Latches current address into internal counter; enables auto-increment without external sequencer |
| CNTENL/CNTENR | Counter enable | Activates address counter on rising CLK; required for burst-mode sequential access |
| REPEATL/REPEATR | Counter repeat control | Resets counter to last ADS-loaded address-supports circular buffer or ping-pong addressing |
| OPTL / OPTR | I/O voltage select | VIH = 3.3V I/O interface; VIL = 2.5V I/O interface-configures VDDQL/VDDQR supply requirement |
| VDD / VSS | Core power / ground | All VDD pins must be connected to 3.3V; all VSS pins tied to common ground plane |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port memory cells | Enables concurrent read/write to identical addresses-eliminates arbitration logic in shared-memory inter-processor communication |
| Dual-cycle deselect (DCD) | Prevents metastability during rapid chip enable toggling by enforcing two-cycle deactivation sequence |
| Separate byte controls per port | Supports 18-bit multiplexed buses and allows independent write masking of upper/lower 9-bit bytes |
| Self-timed write cycle | Removes external write pulse timing constraints-simplifies controller design and improves timing margin |
| Automatic power-down | Each port enters low-power standby when CE0X=VIH or CE1X=VIL-reduces dynamic current to ≤40mA in full standby |
Applications
| Telecom Line Card Buffering | Real-Time DSP Co-Processing |
|---|---|
Use Scenario: Storing incoming/outgoing ATM or Ethernet frames in carrier-grade access equipment with strict jitter and latency budgets. IC Role / Device Role / Timing Role: Dual-port SRAM acting as zero-wait-state frame buffer between ingress PHY and egress scheduler, with left port handling receive DMA and right port serving transmit FIFO. Use Value: Simultaneous access eliminates pipeline stalls; 4.2ns tCD2 ensures sub-5ns deterministic read latency critical for <100ns jitter compliance. |
Use Scenario: Shared memory between a master ARM processor and a dedicated DSP running real-time audio codecs or radar signal processing. IC Role / Device Role / Timing Role: Memory coherency hub where ARM writes coefficients and DSP reads them-both accessing same address space without software locks. Use Value: True dual-port architecture avoids bus contention; per-port 2.5V/3.3V I/O support matches mixed-voltage SoC interfaces without level shifters. |
| Industrial PLC Data Exchange | Avionics Sensor Fusion Hub |
Use Scenario: Exchanging sensor readings and control commands between redundant CPU modules in safety-critical programmable logic controllers. IC Role / Device Role / Timing Role: Fault-tolerant shared memory node with left port connected to primary CPU and right port to backup CPU-both monitoring and updating status registers concurrently. Use Value: Industrial temperature rating (−40°C to +85°C) ensures reliability in uncontrolled enclosures; dual CE enables seamless failover without memory reload. |
Use Scenario: Aggregating time-stamped inertial, GPS, and barometric data streams for Kalman filtering in flight control systems. IC Role / Device Role / Timing Role: High-bandwidth scratchpad where sensor interface ASIC writes raw data to left port and flight controller reads fused results from right port. Use Value: 133MHz operation sustains >2GB/s aggregate throughput across 18-bit buses; pipelined outputs guarantee predictable 4.2ns read latency for hard real-time deadlines. |
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, 133MHz, 3.3V core/I/O, 165-ball BGA package | Requires PCB redesign due to BGA footprint and different pinout; lacks per-port I/O voltage selection | Select when board space permits BGA and system uses uniform 3.3V I/O levels across all interfaces |
| IDT70V27L15PF8 | 32K × 18, 15ns access, 3.3V only, 100-pin TQFP, no counter/ADS features | Lower density and speed; no address counter or repeat functionality-requires external address generation logic | Select for cost-sensitive, non-burst applications where 128K depth and auto-increment are unnecessary |
Compared with CY7C1362BV33-133AXC and IDT70V27L15PF8, the 70V3399S133BF8 uniquely combines 128K depth, 133MHz pipelined performance, per-port 2.5V/3.3V I/O flexibility, and integrated address counter-making it optimal for burst-oriented, mixed-voltage, space-constrained industrial designs.
Availability
70V3399S133BF8 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and avionics applications requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for 70V3399S133BF8 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 high-performance timing, memory interface, and RF solutions for communications and computing markets.
The 70V33xx family was designed specifically for deterministic, low-latency shared-memory architectures in networking, test equipment, and real-time control systems-emphasizing simultaneous access, flexible I/O voltage, and integrated address management.
FAQ
What is the maximum operating frequency of the 70V3399S133BF8?
The 70V3399S133BF8 is rated for 133MHz operation, corresponding to a 7.5ns clock cycle time in pipelined mode. This frequency is guaranteed across the full industrial temperature range (−40°C to +85°C) and applies to both left and right ports independently. The device does not support 166MHz operation-only the 70V3319S166 variants do.
Does the 70V3399S133BF8 support flow-through output mode?
No, the 70V3399S133BF8 does not support flow-through output mode. Due to pin count limitations in its 128-pin TQFP package, the PIPE/FT control pins are omitted, and the device operates exclusively in pipelined output mode on both ports. This is explicitly stated in the datasheet note: "PIPE/FT option in PKG128 is not supported… Device is pipelined outputs only."
What is the function of the ADS pin on the 70V3399S133BF8?
The ADSL and ADSR pins (Address Strobe Enable) on the 70V3399S133BF8 latch the current address into the internal address counter on the rising edge of CLK. When combined with CNTEN and REPEAT, ADS enables automatic address incrementing for burst transfers-eliminating the need for external address sequencing logic in applications like FIFO or circular buffer implementations.
Can both ports of the 70V3399S133BF8 operate at different I/O voltages simultaneously?
Yes, the 70V3399S133BF8 supports independent I/O voltage selection per port: OPTL configures the left port's VDDQL supply (2.5V or 3.3V), and OPTR configures the right port's VDDQR supply (2.5V or 3.3V). This allows one port to interface with a 2.5V FPGA while the other connects to a 3.3V microcontroller-without external level-shifting circuitry.
Is JTAG debugging supported on the 70V3399S133BF8?
No, JTAG is not supported on the 70V3399S133BF8. The 128-pin TQFP package lacks sufficient pins to accommodate the required TCK, TMS, TDI, TDO, and TRST signals. As confirmed in the datasheet: "Due to limited pin count, JTAG is not supported on the 128-pin TQFP package." JTAG is only available on the 208-pin and 256-pin BGA variants of the family.
70V3399S133BF8 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:
- 3.15V ~ 3.45V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 208-CABGA (15x15)
70V3399S133BF8 FAQ
1.How can I place an order for 70V3399S133BF8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 70V3399S133BF8 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 70V3399S133BF8 reliable?
The price and inventory of 70V3399S133BF8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70V3399S133BF8 is usually 5 days.
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Once your 70V3399S133BF8 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 70V3399S133BF8?
For technical support, including 70V3399S133BF8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70V3399S133BF8 requirements.
6.How does Aetrix verify that 70V3399S133BF8 is sourced from the original manufacturer or authorized distributors?
All 70V3399S133BF8 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 70V3399S133BF8 meets industry standards.
7.What is the process for return or replacement of 70V3399S133BF8?
All 70V3399S133BF8 units undergo pre-shipment inspection (PSI). If there is an issue with 70V3399S133BF8, 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 70V3399S133BF8 part is unused and in its original packaging.
Return procedure for 70V3399S133BF8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
70V3399S133BF8 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
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24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
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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
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24LC01BT-I/SN
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24AA02UIDT-I/OT
Microchip Technology
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AT24C08C-STUM-T
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