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Renesas 7026L20G
- Part No.:
- 7026L20G
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 84-BPGA
- Datasheet:
-
7026L20G.pdf
- Description:
- IC SRAM 256KBIT PARALLEL 84PGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,942
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Product details
Overview
7026L20G from IDT (Integrated Device Technology) is a high-speed 16K × 16 true dual-port static RAM with independent left/right ports, 20 ns maximum access time (industrial grade), 1 mW typical standby power, and on-chip semaphore arbitration logic. It enables simultaneous asynchronous read/write to the same memory location in real-time embedded systems requiring deterministic inter-processor communication.
For engineers reviewing the 7026L20G datasheet, 7026L20G pinout, 7026L20G application, or 7026L20G equivalent, key selection criteria include BUSY arbitration timing (tBAA ≤ 20 ns), dual-byte control (UBL/LBL), Master/Slave cascading capability via M/S pin, and industrial temperature support (–40°C to +85°C).
Technical Context
The 7026L20G implements fully asynchronous dual-port architecture with separate address, control, and I/O buses per port. Its on-chip arbitration logic resolves contention using either chip-enable–based (tBAC/tBDC) or address-match–based (tBAA/tBDA) BUSY assertion, with priority set-up time tAPS = 5 ns.
It supports semaphore flag management via dedicated SEM pins and A0–A2 addressing of eight hardware semaphores, enabling inter-processor synchronization without external logic. The device operates at 5.0 V ±10% with TTL-compatible inputs and push-pull BUSY outputs-no pull-ups required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 16K × 16 bits (256Kb total); supports 32-bit+ expansion via Master/Slave cascading |
| Access Time (max) | 20 ns - guarantees deterministic response for real-time inter-processor data exchange |
| Standby Power (typ) | 1 mW - enables ultra-low-power operation during idle cycles in battery-backed or energy-sensitive systems |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments without derating |
| Supply Voltage | 5.0 V ±10% - compatible with legacy 5V TTL logic families and mixed-voltage board designs |
| Bus Width Control | Separate UBL/LBL per port - allows byte-level write masking for partial-word updates without read-modify-write overhead |
| Arbitration Logic | Hardware BUSY flag with tBDD ≤ 30 ns - ensures valid data availability after contention resolution |
Pinout & Package
7026L20G is housed in an 84-pin PLCC (Plastic Leaded Chip Carrier) package measuring approximately 1.15 in × 1.15 in × 0.17 in, with all VCC and GND pins distributed across the perimeter for low-noise power delivery.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A13L / A0R–A13R | Address Inputs (Left/Right) | 14-bit address per port; enables independent access to any of 16K locations on each side |
| I/O0L–I/O15L / I/O0R–I/O15R | Bidirectional Data Bus (Left/Right) | 16-bit parallel data path per port; supports simultaneous read/write on same address |
| CEL / CER | Chip Enable (Left/Right) | Active-low enable per port; controls port power-down (ISB3 ≤ 0.2 mA) when deasserted |
| R/WL / R/WR | Read/Write Control (Left/Right) | Determines direction of data transfer; gated internally if BUSY is asserted |
| OEL / OER | Output Enable (Left/Right) | Enables output drivers independently of R/W state; supports three-state bus sharing |
| UBL / UBR, LBL / LBR | Upper/Lower Byte Select | Enables byte-selective writes (e.g., update only upper 8 bits) without disturbing other bytes |
| SEML / SEMR | Semaphore Enable | Activates semaphore register access mode (CE = VIH, SEM = VIL) for inter-processor signaling |
| BUSYL / BUSYR | Busy Flag (Left/Right) | Push-pull output (Master) or input (Slave); asserts when both ports access same address simultaneously |
| M/S | Master/Slave Select | Configures BUSY as output (M/S = H) or input (M/S = L); enables multi-device depth expansion |
Key Features
| Feature | Design Value |
|---|---|
| True Dual-Port Architecture | Enables concurrent, fully asynchronous access to identical memory locations-no internal arbitration delay or software overhead |
| Hardware Semaphore Support | Eight dedicated flags addressed by A0–A2, writable via I/O0 and readable across all 16 I/O lines for lightweight IPC |
| Low-Standby-Power Design | 1 mW typical ISB3 (full CMOS standby) reduces system-level quiescent current in always-on embedded controllers |
| Industrial Temperature Range | –40°C to +85°C operation without performance degradation-suitable for factory automation and transportation electronics |
| Master/Slave Cascading | Single M/S pin configures device as master (BUSY output) or slave (BUSY input), enabling seamless 32-bit+ word-width expansion |
Applications
| Real-Time Motion Control | Digital Signal Processor (DSP) Co-Processing |
|---|---|
Use Scenario: Two microcontrollers coordinate motor trajectory generation and feedback loop execution using shared memory buffers. IC Role / Device Role / Timing Role: 7026L20G serves as deterministic, lock-free inter-processor communication channel with hardware BUSY arbitration. Use Value: Eliminates polling or software semaphores; 20 ns access and tBDD ≤ 30 ns ensure sub-microsecond synchronization latency. | Use Scenario: A host MCU offloads FFT computation to a dedicated DSP, exchanging coefficients and results via shared memory. IC Role / Device Role / Timing Role: 7026L20G acts as zero-wait-state buffer between non-synchronous clock domains (e.g., 50 MHz MCU / 100 MHz DSP). Use Value: Independent left/right ports avoid bus contention; UBL/LBL enables efficient partial-result writes without full-word transfers. |
| Redundant Safety Controller | Avionics Data Acquisition Hub |
Use Scenario: Dual-lockstep safety processors compare sensor inputs and actuator commands in real time using mirrored memory regions. IC Role / Device Role / Timing Role: 7026L20G provides bit-identical, atomic memory access with hardware-enforced consistency checks via BUSY and semaphore logic. Use Value: Prevents race conditions during failover; industrial temp rating ensures reliability in harsh vehicle environments. | Use Scenario: Multiple sensor modules (IMU, pressure, temperature) stream time-stamped data into a central acquisition unit for flight recorder buffering. IC Role / Device Role / Timing Role: 7026L20G functions as high-throughput, low-latency ring buffer-left port accepts sensor writes, right port feeds recorder reads. Use Value: 16-bit width and 20 ns access sustain >45 MB/s sustained throughput; 5V tolerance simplifies interface to legacy analog front-ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C136-20VC | 20 ns access, 16K × 16, but uses 3.3 V supply and has open-drain BUSY requiring pull-ups | Lacks native 5V compatibility and push-pull BUSY; requires level-shifting in mixed-voltage systems | Select when migrating to lower-voltage platforms and external arbitration logic is acceptable |
| IDT70V26S20PF | Same pinout and function but 3.3 V core, LVCMOS I/O, and higher speed (15 ns) | Not drop-in compatible due to voltage mismatch; requires PCB redesign and power rail changes | Choose for new designs prioritizing lower power and faster timing-only with full schematic revision |
Compared with CY7C136-20VC and IDT70V26S20PF, the 7026L20G uniquely delivers 5V TTL compatibility, push-pull BUSY outputs, and industrial temperature support in a single, mature, drop-in solution-making it optimal for legacy 5V systems requiring field-proven reliability.
Availability
7026L20G is available at Aetrix Electronics and suitable for real-time motion control, redundant safety controllers, avionics data acquisition, industrial PLCs, and DSP co-processing applications requiring stable component supply and long-term obsolescence management.
Supply support for 7026L20G 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) was a fabless semiconductor company specializing in timing, memory, and interface solutions before its acquisition by Renesas Electronics in 2019. Known for high-reliability, high-performance memory and clock products.
The IDT7026 family was designed specifically for deterministic inter-processor communication in real-time embedded systems-emphasizing hardware arbitration, low-latency access, and robust industrial-grade operation.
FAQ
What is the operating temperature range for the 7026L20G?
The 7026L20G is rated for industrial temperature operation from –40°C to +85°C. This specification is production-tested and guaranteed across the full voltage range (4.5 V to 5.5 V). It does not support military or extended commercial ranges-those require distinct part variants like 7026M25 or 7026S15.
Does the 7026L20G support true simultaneous read/write to the same memory address?
Yes, the 7026L20G implements true dual-port SRAM cells that allow concurrent access to the same location. When contention occurs, hardware BUSY logic asserts within 20 ns (tBAA), stalling one port while permitting the other to complete-ensuring data integrity without external arbitration logic.
How does the M/S pin affect BUSY functionality on the 7026L20G?
When M/S = HIGH, the 7026L20G operates as a Master: BUSYL and BUSYR are push-pull outputs indicating local contention. When M/S = LOW, it becomes a Slave: BUSYL and BUSYR become inputs that externally inhibit writes-enabling hierarchical arbitration in multi-device arrays.
Can the 7026L20G be used in a 32-bit data path configuration?
Yes. Using the Master/Slave select (M/S) pin, multiple 7026L20G devices can be cascaded to form wider data paths. One device acts as Master (BUSY output), others as Slaves (BUSY inputs), with no additional glue logic required-enabling seamless 32-bit or 64-bit word systems.
What is the standby current consumption of the 7026L20G under full CMOS disable conditions?
Under full CMOS standby (ISB3 condition), where both CEL and CER are held > VCC – 0.2 V and all inputs are at rail, the 7026L20G consumes ≤ 0.2 mA typical and ≤ 5 mA maximum-significantly lower than the 7026S variant's 15 mA max, making it ideal for low-power hold modes.
7026L20G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 84-BPGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Asynchronous
- Memory Size:
- 256Kbit
- Memory Organization:
- 16K x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 20ns
- Access Time:
- 20 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 84-PGA (27.94x27.94)
7026L20G FAQ
1.How can I place an order for 7026L20G through Aetrix?
Please submit a Request for Quotation (RFQ) for 7026L20G 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 7026L20G reliable?
The price and inventory of 7026L20G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7026L20G is usually 5 days.
3.What payment methods are accepted for 7026L20G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7026L20G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7026L20G?
7026L20G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7026L20G 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 7026L20G?
For technical support, including 7026L20G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7026L20G requirements.
6.How does Aetrix verify that 7026L20G is sourced from the original manufacturer or authorized distributors?
All 7026L20G 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 7026L20G meets industry standards.
7.What is the process for return or replacement of 7026L20G?
All 7026L20G units undergo pre-shipment inspection (PSI). If there is an issue with 7026L20G, 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 7026L20G part is unused and in its original packaging.
Return procedure for 7026L20G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7026L20G 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
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
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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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