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Renesas 7133LA70G
- Part No.:
- 7133LA70G
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 68-BPGA
- Datasheet:
-
7133LA70G.pdf
- Description:
- IC SRAM 32KBIT PARALLEL 68PGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,198
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Product details
Overview
7133LA70G from Integrated Device Technology (IDT) is a high-speed 2K × 16 dual-port static RAM with master arbitration logic, 70 ns max read cycle time, 1.0 mA typical full-standby current, and battery backup data retention at 2 V - used in real-time embedded systems requiring concurrent CPU/DSP access to shared memory.
For engineers reviewing the 7133LA70G datasheet, 7133LA70G pinout, 7133LA70G application, or 7133LA70G equivalent, this page delivers verified timing specs, byte-selectable write control per port, BUSY arbitration behavior, industrial temperature support (–40°C to +85°C), and package-specific pin mapping for 68-pin PLCC, PGA, and flatpack variants.
Technical Context
The 7133LA70G implements fully asynchronous dual-port operation with independent left/right address, control, and I/O buses - enabling simultaneous read/write access without internal synchronization overhead. Its on-chip arbitration logic resolves contention via open-drain BUSYL/BUSYR outputs (requiring external pull-ups) and supports MASTER/SLAVE expansion to 32-bit+ data widths.
It features separate upper/lower byte write enables (R/WLUB/R/WLLB and R/WRUB/R/WRLB), TTL-compatible 5 V ±10% supply, and automatic power-down controlled by chip enable (CE). The LA variant reduces active power to 1050 mW typ. and standby to 1 mW typ., enabling battery-backed operation with 2 V data retention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2K × 16 bits (32 Kbit total, organized as 2048 words × 16-bit wide) |
| Max Read Cycle Time (tRC) | 70 ns - defines minimum interval between successive reads on same port |
| Standby Current (ISB3) | 0.2 mA typ. - ultra-low power consumption when both ports disabled with CMOS-level inputs |
| Data Retention Voltage | 2.0 V - maintains stored data during brown-out or battery backup mode |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments without derating |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V TTL logic rails |
| Input Capacitance | 11 pF - ensures signal integrity up to ~100 MHz bus switching |
Pinout & Package
7133LA70G is available in 68-pin PLCC (PLG68), 68-pin ceramic PGA (GU68), and 68-pin flatpack (FP68) packages - all with identical pinouts. Dual-port architecture requires two independent sets of control, address, and I/O pins plus dedicated BUSY signaling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CEL / CER | Chip Enable (Left / Right) | Active-low enable controlling port power state and access permission |
| R/WLUB / R/WRUB | Upper Byte Write Enable (L/R) | Independent write gating for I/O8–I/O15 - enables byte-level write granularity |
| R/WLLB / R/WRLB | Lower Byte Write Enable (L/R) | Independent write gating for I/O0–I/O7 - critical for mixed-width peripheral interfacing |
| OEL / OER | Output Enable (L/R) | Controls tri-state output drivers - allows shared bus usage without external buffers |
| BUSYL / BUSYR | Busy Flag (L/R) | Open-drain output (7133) indicating port contention; requires external pull-up resistor |
| A0L–A10L / A0R–A10R | Address Inputs (L/R) | 11-bit addressing per port - supports full 2K-word access without multiplexing |
| I/O0L–I/O15L / I/O0R–I/O15R | Data I/O (L/R) | 16-bit bidirectional data path per port - enables true parallel dual-access memory architecture |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Resolves simultaneous same-address access via BUSY flag assertion - eliminates need for external priority encoder or glue logic |
| Byte-selectable write control | Separate upper/lower byte enables per port allow partial-word writes without read-modify-write cycles |
| Battery backup data retention | Maintains valid data at 2 V supply - enables seamless transition to backup power during main supply failure |
| MASTER/SLAVE expandability | One 7133LA70G (MASTER) coordinates arbitration for multiple 7143LA70G (SLAVE) devices - scales data width to 32+ bits with no added latency |
| Industrial temperature range | Rated for –40°C to +85°C operation - suitable for automotive engine control units and factory automation systems |
Applications
| Real-Time DSP Co-Processing | Redundant Control System Memory |
|---|---|
Use Scenario: Two processors (e.g., ARM host + TI C6000 DSP) concurrently access shared filter coefficient tables and frame buffers. IC Role / Device Role / Timing Role: Dual-port SRAM acts as zero-wait-state shared memory with hardware arbitration preventing data corruption during simultaneous writes. Use Value: Eliminates software semaphore overhead and guarantees deterministic <70 ns inter-processor memory access latency. |
Use Scenario: Fault-tolerant flight controller uses primary and backup CPUs sharing sensor fusion results and actuator commands. IC Role / Device Role / Timing Role: 7133LA70G serves as synchronized memory hub with BUSY-driven write inhibition ensuring atomic updates across redundant channels. Use Value: Prevents inconsistent state propagation during failover by blocking conflicting writes before arbitration resolution. |
| Industrial PLC I/O Mapping | Medical Imaging Frame Buffer |
Use Scenario: Programmable logic controller uses one port for scan-cycle I/O image update and second port for HMI data readout. IC Role / Device Role / Timing Role: Acts as deterministic I/O register bank with independent timing domains - no bus contention between cyclic scan and operator interface. Use Value: Enables sub-millisecond I/O update rates while supporting concurrent diagnostic read access without jitter or polling delays. |
Use Scenario: Ultrasound system acquires raw RF data on one port while display processor renders B-mode images from same buffer on second port. IC Role / Device Role / Timing Role: High-bandwidth frame buffer with 70 ns read cycle supports real-time pixel streaming and overlay rendering. Use Value: Sustains >14 MB/s sustained throughput (16-bit × 100 MHz effective) required for real-time video-rate imaging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C133-70JC | 70 ns access, 2K × 16, but lacks on-chip arbitration logic and BUSY signaling - requires external logic for contention management | Not suitable for MASTER/SLAVE expansion or systems requiring hardware write-inhibit arbitration | Select only if arbitration is handled in FPGA or if single-chip use avoids contention entirely |
| IDT7143LA70G | Identical speed, package, and electrical specs - but SLAVE-only device with BUSY input (not output) and no arbitration logic | Used exclusively as width-expansion companion to 7133LA70G; cannot operate stand-alone as MASTER | Required when building >16-bit dual-port memory arrays - pairs directly with 7133LA70G without redesign |
Compared with CY7C133-70JC and IDT7143LA70G, the 7133LA70G uniquely integrates arbitration logic and BUSY output capability - making it the sole choice for self-contained dual-CPU shared memory systems or scalable MASTER/SLAVE architectures without external arbitration components.
Availability
7133LA70G is available at Aetrix Electronics and suitable for industrial automation, medical imaging, and aerospace avionics requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature performance.
Supply support for 7133LA70G 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) was a fabless semiconductor company specializing in high-performance timing, memory interface, and RF solutions before its acquisition by Renesas Electronics in 2019.
The IDT7133 family was designed specifically for real-time embedded systems requiring deterministic, contention-free dual-processor memory access - targeting military, industrial, and communications infrastructure applications.
FAQ
What is the maximum operating temperature range for the 7133LA70G?
The 7133LA70G is rated for industrial temperature operation from –40°C to +85°C. This specification is explicitly confirmed in the Absolute Maximum Ratings table and DC Electrical Characteristics section of the official datasheet. It does not support extended military-grade ranges (–55°C to +125°C) unless ordered under a specific MIL-PRF-38535 QML variant - the 7133LA70G part number denotes the industrial version.
Does the 7133LA70G include on-chip arbitration logic?
Yes, the 7133LA70G includes dedicated on-chip arbitration logic - a defining feature that distinguishes it from SLAVE-only variants like the 7143LA70G. This logic asserts BUSYL or BUSYR when both ports attempt access to the same memory location, enabling hardware-based write inhibition and priority resolution without external components.
What is the data retention voltage specification for the 7133LA70G?
The 7133LA70G supports data retention at VCC = 2.0 V, as specified in Table 8 (Data Retention Characteristics) of the datasheet. This enables reliable battery backup operation during main power loss - a key capability of the LA (low-power) variant, unlike the SA (standard power) versions which do not guarantee retention below 4.5 V.
Can the 7133LA70G be used in a MASTER/SLAVE configuration?
Yes, the 7133LA70G is explicitly designed as the MASTER device in IDT's MASTER/SLAVE dual-port architecture. It provides BUSY output signals to coordinate arbitration across multiple SLAVE devices (e.g., 7143LA70G), enabling seamless expansion of data bus width to 32 bits or more without additional discrete logic or timing penalties.
What package types are available for the 7133LA70G?
The 7133LA70G is offered in three 68-pin packages with identical pinouts: PLCC (PLG68), ceramic PGA (GU68), and flatpack (FP68). All variants share the same functional pin mapping and timing specifications - selection depends on board assembly method, thermal requirements, and mechanical constraints rather than electrical differentiation.
7133LA70G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 68-BPGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Asynchronous
- Memory Size:
- 32Kbit
- Memory Organization:
- 2K x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 70ns
- Access Time:
- 70 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 68-PGA (29.46x29.46)
7133LA70G FAQ
1.How can I place an order for 7133LA70G through Aetrix?
Please submit a Request for Quotation (RFQ) for 7133LA70G 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 7133LA70G reliable?
The price and inventory of 7133LA70G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7133LA70G is usually 5 days.
3.What payment methods are accepted for 7133LA70G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7133LA70G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7133LA70G?
7133LA70G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7133LA70G 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 7133LA70G?
For technical support, including 7133LA70G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7133LA70G requirements.
6.How does Aetrix verify that 7133LA70G is sourced from the original manufacturer or authorized distributors?
All 7133LA70G 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 7133LA70G meets industry standards.
7.What is the process for return or replacement of 7133LA70G?
All 7133LA70G units undergo pre-shipment inspection (PSI). If there is an issue with 7133LA70G, 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 7133LA70G part is unused and in its original packaging.
Return procedure for 7133LA70G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7133LA70G Tags
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