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Renesas 7133SA70G
- Part No.:
- 7133SA70G
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 68-BPGA
- Datasheet:
-
7133SA70G.pdf
- Description:
- IC SRAM 32KBIT PARALLEL 68PGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,396
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Product details
Overview
7133SA70G from IDT is a high-speed 2K × 16 dual-port static RAM configured as a MASTER device with on-chip arbitration logic, BUSY output flag (open-drain), and 70 ns maximum read cycle time. It operates at 5.0 V ±10%, supports independent asynchronous access from left/right ports, and enables 32-bit-or-wider memory expansion when paired with IDT7143 SLAVE devices. Used in real-time multiprocessing systems requiring concurrent CPU/DSP access to shared memory.
For engineers reviewing the 7133SA70G datasheet, 7133SA70G pinout, 7133SA70G application, or 7133SA70G equivalent, this page delivers verified timing specs (tRC = 70 ns), power metrics (ISB1 = 25 mA), byte-select write control (R/WLUB/R/WLLB), BUSY arbitration behavior, and military-grade packaging options - all critical for deterministic dual-port memory integration.
Technical Context
The 7133SA70G implements fully asynchronous dual-port architecture with separate address, control, and I/O buses per port. Its on-chip arbitration logic resolves simultaneous accesses to identical addresses by asserting BUSYL/BUSYR outputs, enabling hardware stall signaling without external logic.
As a MASTER device, it features open-drain BUSY outputs requiring pull-up resistors, while supporting battery backup data retention down to 2 V (VDR = 2.0 V) in LA variants - though 7133SA70G is SA-grade with active power consumption of 230 mA (typ.) and standby current of 25 mA (ISB1) under TTL-level inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2K × 16 bits (32,768 bits total); supports independent 16-bit word access per port |
| Read Cycle Time (tRC) | 70 ns max - defines minimum interval between successive reads on same port |
| Supply Voltage | 5.0 V ±10% (4.5–5.5 V); requires both VCC pins connected for reliable operation |
| Operating Temperature | Commercial grade: 0°C to +70°C - validated for non-industrial embedded control systems |
| Dynamic Current (ICC) | 230 mA typ. at fMAX - determines thermal design margin and regulator sizing |
| Standby Current (ISB1) | 25 mA max with both CE pins high - key for low-power sleep modes in multi-CPU systems |
| Data Retention | Not supported - SA variant lacks battery backup; LA variants retain data at 2 V, but 7133SA70G is SA |
Pinout & Package
7133SA70G is available in 68-pin PLCC (PLG68), 68-pin ceramic PGA (GU68), 68-pin flatpack (FP68), and 100-pin TQFP (PNG100) packages. Pin functions are identical across all variants per datasheet Section "Pin Names" and "Pin Configurations".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CEL / CER | Chip Enable (Left/Right) | Active-low enable per port; controls port power-down and memory access permission |
| R/WLUB / R/WRUB | Upper Byte Read/Write Enable | Independent write control for I/O8–I/O15; enables byte-granular writes without masking logic |
| R/WLLB / R/WRLB | Lower Byte Read/Write Enable | Independent write control for I/O0–I/O7; essential for mixed-endian or partial-word updates |
| OEL / OER | Output Enable (Left/Right) | Tri-states I/O bus when deasserted; allows shared bus topology with other peripherals |
| BUSYL / BUSYR | BUSY Flag (Open-Drain Output) | Signals port contention; requires external pull-up; used to stall CPUs during arbitration |
| A0L–A10L / A0R–A10R | Address Inputs (Left/Right) | 11-bit address bus per port; decodes 2K locations (0x000–0x7FF) |
| I/O0L–I/O15L / I/O0R–I/O15R | Data I/O (Left/Right) | Bi-directional 16-bit data path per port; supports concurrent read/write across ports |
Key Features
| Feature | Design Value |
|---|---|
| On-chip port arbitration logic | Resolves simultaneous accesses to same address without external logic; eliminates race conditions in multiprocessing |
| Separate upper/lower byte write enables | Enables atomic 8-bit updates to 16-bit words - critical for register-mapped peripherals and protocol stacks |
| Open-drain BUSY outputs with priority resolution | Allows wired-OR of multiple BUSY signals for system-wide contention interrupt generation |
| MASTER/SLAVE expandability | Enables seamless 32-bit+ data bus width expansion using IDT7143 SLAVE devices without added glue logic |
| Full asynchronous operation | Eliminates clock domain crossing constraints; supports heterogeneous CPU/DSP timing domains |
Applications
| Real-Time DSP Systems | Military Avionics Data Buffers |
|---|---|
Use Scenario: Two independent processors (e.g., radar signal processor and flight control unit) share sensor data via common memory. IC Role / Device Role / Timing Role: MASTER dual-port RAM providing synchronized, contention-managed access to shared coefficient tables and telemetry buffers. Use Value: 70 ns tRC enables sub-14 MHz sustained throughput; BUSY arbitration prevents data corruption during simultaneous read/write to same address. |
Use Scenario: Redundant flight computers exchange state vectors and health status in MIL-STD-1553B subsystems. IC Role / Device Role / Timing Role: High-reliability shared memory node with guaranteed 0°C to +70°C operation and QML-compliant packaging. Use Value: 68-pin ceramic PGA package meets MIL-PRF-38535 mechanical robustness requirements; open-drain BUSY supports legacy discrete arbitration circuits. |
| Industrial PLC Communication Gateways | Test Equipment Pattern Memory |
Use Scenario: Programmable logic controller bridges Modbus TCP and CANopen networks using dual-port RAM for protocol translation buffers. IC Role / Device Role / Timing Role: Asynchronous interface buffer allowing independent Ethernet and fieldbus controllers to read/write status registers concurrently. Use Value: Separate R/WLUB/R/WLLB enables atomic updates to 16-bit status words without locking entire memory region. |
Use Scenario: Automated test equipment stores stimulus/response patterns for semiconductor wafer probing. IC Role / Device Role / Timing Role: High-speed pattern storage accessed simultaneously by pattern generator and comparator logic. Use Value: 70 ns tRC supports >14 MHz pattern rates; full 16-bit I/O width matches parallel test bus architectures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 7133SA55G | 55 ns max read cycle time; otherwise identical pinout, voltage, and feature set | Suitable where 18.2 MHz max sustained access rate suffices instead of 14.3 MHz | Select when system timing budget allows slower access; reduces power slightly (ICC = 230 mA → 230 mA typ., ISB1 unchanged) |
| 7133LA70G | Same 70 ns speed but LA variant: 1 mW standby (vs. 5 mW), 2 V data retention capability | Required for battery-backed systems needing non-volatile retention during main power loss | Choose only if 2 V data retention is mandatory; SA variant lacks this function entirely |
Compared with 7133SA55G and 7133LA70G, the 7133SA70G provides the optimal balance of commercial-grade speed (70 ns), proven reliability in non-battery systems, and direct drop-in compatibility in existing 68-pin PLCC layouts - making it ideal for cost-sensitive, high-volume industrial controllers.
Availability
7133SA70G is available at Aetrix Electronics and suitable for real-time DSP systems, military avionics data buffers, and industrial PLC communication gateways requiring stable component supply across extended production lifecycles.
Supply support for 7133SA70G 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
IDT (Integrated Device Technology) is a fabless semiconductor company specializing in high-performance memory, timing, and interface solutions for communications, computing, and industrial markets.
The IDT7133 family was designed specifically for deterministic dual-port memory applications in multiprocessing systems - emphasizing hardware arbitration, byte-select write control, and MASTER/SLAVE scalability without external logic.
FAQ
What is the maximum operating temperature range for the 7133SA70G?
The 7133SA70G is rated for commercial temperature operation from 0°C to +70°C. It is not qualified for industrial (–40°C to +85°C) or military (–55°C to +125°C) ranges. This specification is confirmed in Table 2746 tbl 04 of the official datasheet, which lists ambient temperature grades per part number suffix. The 'SA' designation explicitly denotes commercial-grade performance.
Does the 7133SA70G support battery backup data retention?
No, the 7133SA70G does not support battery backup data retention. Only LA variants (e.g., 7133LA70G) provide 2 V data retention capability. The 'SA' suffix indicates standard active-power operation without low-voltage retention circuitry. Datasheet Table 2746 tbl 08 confirms VDR = 2.0 V applies exclusively to LA versions, and no retention current (ICCDR) is specified for SA parts.
Is the 7133SA70G pin-compatible with the IDT7143 series?
Yes, the 7133SA70G shares identical pinout with IDT7143 devices across all package types (68-pin PLCC, PGA, flatpack, and 100-pin TQFP), as stated in the "Description" section: "The IDT7133/7143 devices have identical pinouts." However, functional differences exist - 7133SA70G has BUSY as open-drain output with arbitration logic, while IDT7143 uses BUSY as input only.
What is the purpose of the R/WLUB and R/WLLB pins on the 7133SA70G?
The R/WLUB (Upper Byte Read/Write Enable) and R/WLLB (Lower Byte Read/Write Enable) pins provide independent write control for the upper (I/O8–I/O15) and lower (I/O0–I/O7) bytes of the 16-bit data bus. This enables atomic 8-bit updates without affecting the complementary byte - essential for register-mapped peripherals and protocol stack implementations where partial-word writes must avoid race conditions.
How does the BUSY arbitration logic work in the 7133SA70G?
In the 7133SA70G, BUSY arbitration asserts BUSYL or BUSYR when both ports attempt simultaneous access to the same memory address. The internal logic grants priority to the earlier-accessing port and gates the write signal on the contending side. As a MASTER device, its BUSY outputs are open-drain and require external pull-up resistors to generate valid stall signals for connected processors.
7133SA70G 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)
7133SA70G FAQ
1.How can I place an order for 7133SA70G through Aetrix?
Please submit a Request for Quotation (RFQ) for 7133SA70G 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 7133SA70G reliable?
The price and inventory of 7133SA70G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7133SA70G is usually 5 days.
3.What payment methods are accepted for 7133SA70G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7133SA70G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7133SA70G?
7133SA70G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7133SA70G 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 7133SA70G?
For technical support, including 7133SA70G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7133SA70G requirements.
6.How does Aetrix verify that 7133SA70G is sourced from the original manufacturer or authorized distributors?
All 7133SA70G 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 7133SA70G meets industry standards.
7.What is the process for return or replacement of 7133SA70G?
All 7133SA70G units undergo pre-shipment inspection (PSI). If there is an issue with 7133SA70G, 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 7133SA70G part is unused and in its original packaging.
Return procedure for 7133SA70G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7133SA70G Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
-
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
-
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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