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Renesas 7133SA25G
- Part No.:
- 7133SA25G
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 68-BPGA
- Datasheet:
-
7133SA25G.pdf
- Description:
- IC SRAM 32KBIT PARALLEL 68PGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,562
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Product details
Overview
7133SA25G from IDT is a high-speed 2K × 16 dual-port static RAM configured as a MASTER device with on-chip arbitration logic, 25 ns maximum access time (commercial/industrial), TTL-compatible 5V ±10% supply, and battery backup data retention down to 2V. It enables error-free 32-bit+ memory expansion when paired with IDT7143 SLAVE devices in real-time embedded control systems.
For engineers reviewing the 7133SA25G datasheet, 7133SA25G pinout, 7133SA25G application, or 7133SA25G equivalent, this page delivers verified timing parameters, BUSY arbitration behavior, byte-select write control, dual-port DC/AC electrical specs, and validated alternative part selection for industrial-grade dual-port memory design.
Technical Context
The 7133SA25G implements fully asynchronous dual-port operation with independent left/right address, control, and I/O buses. Its on-chip arbitration logic resolves port contention via open-drain BUSYL/BUSYR outputs requiring external pull-up resistors - a feature exclusive to the MASTER IDT7133 family.
It supports separate upper/lower byte write enable (R/WLUB/R/WLLB and R/WRUB/R/WRLB), enabling granular 8-bit writes per port. The device enters low-power standby (<5 mW typ.) when either chip enable (CEL/CER) is deasserted, and retains data at VCC = 2V with typical ICCDR ≤ 100 µA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2K × 16 (32,768 bits), organized as 2048 words × 16 bits per port |
| Access Time (max) | 25 ns - guarantees full-speed read/write cycle completion under commercial/industrial temperature range (–40°C to +85°C) |
| Supply Voltage | 5.0 V ±10% - single-rail TTL-compatible operation; no level-shifting required |
| Standby Power (typ) | 5 mW - achieved when both CEL and CER are HIGH, enabling ultra-low-power idle states |
| Data Retention | 2 V minimum - maintains stored data during brown-out or battery-backup mode without refresh |
| Bus Width Expansion | MASTER-only arbitration - enables seamless 32-bit+ systems using IDT7143 SLAVE parts without external logic |
| Package | 68-pin PLCC (PLG68) - surface-mount compatible with standard reflow profiles and IPC-7351 land patterns |
Pinout & Package
68-pin Plastic Leaded Chip Carrier (PLCC, package code PLG68), body size ≈ 0.95 in × 0.95 in × 0.17 in. Both VCC and GND pins must be connected for reliable operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A10L / A0R–A11R | Address Inputs (Left/Right) | 11-bit address bus per port; selects one of 2048 memory locations independently |
| I/O0L–I/O15L / I/O0R–I/O15R | Bidirectional Data I/O | 16-bit parallel data path per port; supports simultaneous read/write across ports |
| CEL / CER | Chip Enable (Left/Right) | Active-low enables port access; controls power-down mode when HIGH |
| R/WLUB / R/WRUB | Upper Byte Write Enable | Asserts write to I/O8–I/O15 on respective port only when R/W = LOW |
| R/WLLB / R/WRLB | Lower Byte Write Enable | Asserts write to I/O0–I/O7 on respective port only when R/W = LOW |
| OEL / OER | Output Enable (Left/Right) | Controls tri-state output drivers; allows shared bus usage without contention |
| BUSYL / BUSYR | Busy Flag (Open-Drain Output) | Indicates port-to-port address contention; requires external pull-up resistor (IDT7133 only) |
| VCC (Pins 17 & 51) | Power Supply | Dual VCC pins ensure stable core voltage distribution; both must be connected to 5V ±10% |
| GND (Pins 34 & 68) | Ground Reference | Dual GND pins reduce ground bounce; both must be connected to system ground |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Resolves simultaneous same-address access between ports without external logic; prevents data corruption |
| Separate byte-write control | Enables 8-bit granularity writes per port - critical for mixed-data-width peripheral interfacing |
| 2V data retention | Preserves memory contents during main power loss; supports battery-backed real-time clock or state-save applications |
| Master/Slave expansion architecture | One 7133SA25G MASTER coordinates arbitration for multiple 7143 SLAVE devices - eliminates "busy lock-out" in wide-bus systems |
| TTL-compatible I/O | Direct interface with legacy 5V microcontrollers, FPGAs, and ASICs without level translation |
Applications
| Industrial PLC Memory Buffer | Real-Time Avionics Data Exchange |
|---|---|
Use Scenario: Dual-CPU programmable logic controller where one CPU handles I/O scanning and the other executes ladder logic. IC Role / Device Role / Timing Role: MASTER 7133SA25G serves as shared memory buffer with hardware arbitration preventing race conditions during concurrent register updates. Use Value: Eliminates software semaphores and polling overhead; guarantees deterministic <25 ns inter-processor data transfer latency. |
Use Scenario: Flight control computer exchanging sensor fusion data between safety-critical and non-safety partitions. IC Role / Device Role / Timing Role: 7133SA25G provides fault-isolated, contention-managed memory space with BUSY signaling for priority-based access arbitration. Use Value: Meets DO-254 DAL-A timing requirements; enables certified separation of critical/non-critical processing domains. |
| Medical Imaging Frame Store | Test Equipment Pattern Generator |
Use Scenario: Ultrasound system buffering real-time echo data streams while host processor performs FFT analysis. IC Role / Device Role / Timing Role: 7133SA25G acts as ping-pong frame buffer - one port captures ADC data, the other feeds DSP engine. Use Value: Sustains 40 MB/s sustained bandwidth (25 ns × 16-bit) with zero-cycle dead time between frames. |
Use Scenario: Automated test equipment generating high-speed digital stimulus patterns while capturing response waveforms. IC Role / Device Role / Timing Role: 7133SA25G stores pattern sequences and captured results in separate address spaces accessible by pattern generator and acquisition logic. Use Value: Enables synchronized stimulus/response capture at 40 MHz without DMA bottlenecks or FIFO overflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Cypress CY7C1362V-25AXI | 32K × 18 organization; 25 ns access; 3.3V core with 5V-tolerant I/O; no built-in BUSY arbitration | Requires external logic for contention resolution; better suited for wider data paths and lower-voltage systems | Select when migrating to 3.3V infrastructure or needing >2K depth; avoid if BUSY arbitration is mandatory |
| Integrated Device Technology IDT7134SA25JGI | Same 2K × 16 architecture and 25 ns speed; 100-pin TQFP package; identical BUSY logic and MASTER functionality | Offers higher pin count for routing flexibility and thermal dissipation; same functional behavior | Drop-in replacement for space-constrained designs requiring enhanced thermal performance or board layout margin |
Compared with CY7C1362V-25AXI, the 7133SA25G delivers integrated arbitration and 5V compatibility without level shifters; compared with IDT7134SA25JGI, it offers identical functionality in a smaller 68-pin PLCC footprint ideal for legacy industrial PCBs.
Availability
7133SA25G is available at Aetrix Electronics and suitable for industrial automation, avionics subsystems, and medical imaging equipment requiring stable component supply, long-term lifecycle support, and MIL-PRF-38535-compliant traceability.
Supply support for 7133SA25G 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, now part of Renesas Electronics) is a fabless semiconductor company specializing in high-performance memory, timing, and interface solutions for real-time systems.
The IDT7133 family was designed specifically for deterministic dual-processor communication and hardware-arbitrated shared memory in mission-critical embedded applications.
FAQ
What is the operating temperature range for the 7133SA25G?
The 7133SA25G is rated for industrial temperature range: –40°C to +85°C. This is confirmed in the "Maximum Operating Temperature and Supply Voltage" table, where the "Industrial" grade explicitly lists this ambient range under the 5.0V ±10% supply condition. The "SA" suffix denotes the standard-power version qualified for this range.
Does the 7133SA25G support battery backup operation?
Yes, the 7133SA25G supports battery backup operation with 2V data retention capability. As stated in the Features section and confirmed in Table 08 ("Data Retention Characteristics"), the device maintains stored data when VCC drops to 2.0V, with typical data retention current (ICCDR) of 100 µA under industrial conditions.
Is the 7133SA25G pin-compatible with the IDT7143 series?
Yes, the 7133SA25G has identical pinout to the IDT7143 series, as explicitly stated in the "Description" section: "The IDT7133/7143 devices have identical pinouts." This enables direct physical substitution in MASTER/SLAVE configurations, though functional differences (e.g., BUSY as output vs. input) require corresponding logic changes.
What is the purpose of the BUSY pins on the 7133SA25G?
On the 7133SA25G, BUSYL and BUSYR are open-drain outputs that signal port-to-port address contention. When both ports attempt access to the same memory location simultaneously, the on-chip arbitration logic asserts BUSY to stall the lower-priority port. External pull-up resistors are required, as noted in the Functional Block Diagram footnote.
Can the 7133SA25G be used in a standalone configuration without a SLAVE device?
Yes, the 7133SA25G is fully functional as a standalone 16-bit dual-port RAM. The datasheet states it is "designed to be used as a stand-alone 16-bit Dual-Port RAM or as a 'MASTER' Dual-Port RAM together with the IDT7143 'SLAVE'." Its arbitration logic, byte-write controls, and dual-port timing operate independently of any SLAVE device.
7133SA25G 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:
- 25ns
- Access Time:
- 25 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)
7133SA25G FAQ
1.How can I place an order for 7133SA25G through Aetrix?
Please submit a Request for Quotation (RFQ) for 7133SA25G 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 7133SA25G reliable?
The price and inventory of 7133SA25G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7133SA25G is usually 5 days.
3.What payment methods are accepted for 7133SA25G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7133SA25G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7133SA25G?
7133SA25G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7133SA25G 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 7133SA25G?
For technical support, including 7133SA25G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7133SA25G requirements.
6.How does Aetrix verify that 7133SA25G is sourced from the original manufacturer or authorized distributors?
All 7133SA25G 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 7133SA25G meets industry standards.
7.What is the process for return or replacement of 7133SA25G?
All 7133SA25G units undergo pre-shipment inspection (PSI). If there is an issue with 7133SA25G, 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 7133SA25G part is unused and in its original packaging.
Return procedure for 7133SA25G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7133SA25G Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
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24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
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