My Inquiry
My Account
Renesas 7054L20PRFG8
- Part No.:
- 7054L20PRFG8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 128-LQFP
- Datasheet:
-
7054L20PRFG8.pdf
- Description:
- IC SRAM 32KBIT PARALLEL 128TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,563
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
7054L20PRFG8 from Renesas Electronics is a high-speed 4K × 8 FourPort™ Static RAM with true simultaneous four-port access, 20 ns maximum access time (commercial grade), 750 mW typical active power, and 1.5 mW typical standby power. It operates on a single 5 V ±10% TTL-compatible supply and is used in real-time multiprocessor communication systems requiring contention-tolerant shared memory.
For engineers reviewing the 7054L20PRFG8 datasheet, 7054L20PRFG8 pinout, 7054L20PRFG8 application, or 7054L20PRFG8 equivalent, key selection criteria include port arbitration independence, sub-25 ns read/write cycle timing, low-power standby via CE control, and 128-pin TQFP packaging for dense embedded multiprocessing layouts.
Technical Context
The 7054L20PRFG8 implements fully asynchronous, independent control logic per port-P1 through P4-with separate address (A0–A11), data I/O (I/O0–I/O7), R/W, CE, and OE signals. Each port operates without internal arbitration, enabling external contention management.
Its CMOS-based FourPort memory array allows simultaneous reads/writes to identical addresses across ports, with guaranteed port-to-port write-read delays of ≤35 ns (tWDD) and ≤30 ns (tDDD). Power-down is controlled per-port via CE, reducing current to 1.5 mA typical when all inputs are CMOS-level.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 4K × 8 (32 Kbit), enabling 4,096 unique 8-bit data locations per port |
| Access Time (tAA) | 20 ns max (commercial grade), defining minimum address-to-valid-data delay for timing-critical real-time inter-processor messaging |
| Read Cycle Time (tRC) | 20 ns max, setting the shortest interval between successive read operations on the same port |
| Active Current (ICC1) | 250 mA max (all ports active, f = 0), corresponding to ~750 mW at 5 V - critical for thermal budgeting in compact multi-CPU modules |
| Standby Current (ISB1) | 1.5 mA max (full CMOS standby), enabling ultra-low-power retention during idle periods without external power gating |
| Supply Voltage | 4.5 V to 5.5 V, ensuring robust operation across industrial board tolerances and legacy 5 V system rails |
| Operating Temperature | 0°C to +70°C (commercial grade), validated for deployment in office, telecom infrastructure, and non-extended-environment embedded controllers |
Pinout & Package
7054L20PRFG8 is housed in a 128-pin Thin Quad Flatpack (TQFP) package measuring 14 mm × 20 mm × 1.4 mm, with exposed pad not electrically connected. All VCC and GND pins must be individually decoupled per datasheet layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0P1–A11P1 A0P2–A11P2 A0P3–A11P3 A0P4–A11P4 |
Address Inputs (4 ports × 12 bits) | Independent 12-bit addressing per port enables full 4K memory space access without multiplexing or arbitration overhead |
| I/O0P1–I/O7P1 I/O0P2–I/O7P2 I/O0P3–I/O7P3 I/O0P4–I/O7P4 |
Bidirectional Data I/O (4 ports × 8 bits) | True bidirectional 8-bit data paths allow concurrent read/write operations across ports - no shared bus contention |
| R/WP1–R/WP4 | Read/Write Control (per port) | Asynchronous R/W assertion per port determines direction independently - no global direction bus required |
| CEP1–CEP4 | Chip Enable (per port) | Per-port CE enables hardware-selectable power-down: unselected ports draw ≤1.5 mA, reducing total system idle power |
| OEP1–OEP4 | Output Enable (per port) | Independent OE control allows selective output driving - essential for mixed-read/mixed-write scenarios without bus conflicts |
| VCC / GND | Power / Ground | Multiple dedicated VCC/GND pairs (per datasheet pin map) minimize switching noise and ensure stable 5 V rail integrity across high-speed ports |
Key Features
| Feature | Design Value |
|---|---|
| True FourPort architecture | Four physically independent memory interfaces eliminate arbitration logic, reducing design complexity and latency in multi-CPU systems |
| Simultaneous same-location access | Enables deterministic inter-processor handshake via shared flags or mailboxes without software locks or polling overhead |
| Per-port CE-controlled standby | Reduces dynamic power by >99% per inactive port - critical for burst-mode processing in telecom baseband or radar subsystems |
| TTL-compatible 5 V interface | Direct drop-in replacement for legacy 5 V microcontroller and DSP buses without level-shifting circuitry |
| 128-pin TQFP footprint | Standardized land pattern supports automated assembly and thermal relief in high-density PCBs with multiple processors |
Applications
| Real-Time Multiprocessor Communication | Digital Signal Processing Subsystem |
|---|---|
|
Use Scenario: Two DSPs exchange FFT coefficients and filter taps in real time during audio beamforming. IC Role / Device Role / Timing Role: Shared memory buffer enabling zero-wait-state inter-DSP data transfer with deterministic 20 ns access latency. Use Value: Eliminates FIFO buffering and synchronization overhead, reducing end-to-end latency by ≥3× versus serial interconnects. |
Use Scenario: A quad-core communications processor shares channel state information among cores during adaptive modulation. IC Role / Device Role / Timing Role: Concurrent-access scratchpad memory allowing all four cores to read/write status registers without arbitration stalls. Use Value: Enables lock-free updates of time-critical radio parameters, improving LTE/NR handover reliability under mobility. |
| Industrial PLC I/O Coordinating Memory | Test Equipment Pattern Buffer |
|
Use Scenario: PLC main CPU and safety monitor CPU jointly access I/O mapping tables for redundant validation. IC Role / Device Role / Timing Role: Dual-port-accessible memory region where both CPUs perform atomic read-modify-write on status flags. Use Value: Supports SIL2-certifiable dual-CPU architectures without external arbitration ICs or custom ASICs. |
Use Scenario: Automated test equipment stores 4-channel digital stimulus patterns for parallel device under test (DUT) stimulation. IC Role / Device Role / Timing Role: Four-port buffer feeding independent pattern generators - each port drives one DUT channel synchronously. Use Value: Achieves 100% parallel test throughput with synchronized 20 ns pattern edge resolution across all channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar four-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IDT70V25L25PF | Lower power (1.2 mW standby), but 25 ns access time; uses 3.3 V supply only | Requires full 3.3 V system redesign; unsuitable for legacy 5 V bus environments | Select only if migrating to 3.3 V and relaxing timing to 25 ns - not a drop-in replacement for 7054L20PRFG8 |
| CY7C1372D-20AC | Two-port (not four-port); 20 ns access; 5 V compatible; 8K × 16 organization | Lacks native four-port concurrency - requires external arbitration logic for >2 CPU access | Use when system needs larger memory depth but can accept added arbitration complexity and reduced port count |
Compared with IDT70V25L25PF and CY7C1372D-20AC, the 7054L20PRFG8 uniquely delivers true four-port 5 V operation at 20 ns without external arbitration - making it irreplaceable for legacy-compliant, low-latency, multi-CPU shared-memory designs.
Availability
7054L20PRFG8 is available at Aetrix Electronics and suitable for real-time multiprocessor communication, digital signal processing subsystems, industrial PLC I/O coordination, and automated test equipment pattern buffering requiring stable component supply and long-lifecycle support.
Supply support for 7054L20PRFG8 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
Renesas Electronics Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and memory solutions for automotive, industrial, and infrastructure markets.
The 7054L20PRFG8 belongs to Renesas' legacy FourPort™ SRAM product line, engineered specifically for deterministic, contention-tolerant shared memory in tightly coupled multiprocessor systems.
FAQ
What is the operating temperature range for the 7054L20PRFG8?
The 7054L20PRFG8 is rated for commercial temperature operation from 0°C to +70°C. It is not qualified for industrial (-40°C to +85°C) or extended temperature ranges. This specification is confirmed in the Ordering Information table and Absolute Maximum Ratings section of the official Renesas datasheet revision dated April 7, 2022.
Does the 7054L20PRFG8 support true simultaneous writes from all four ports to the same memory location?
The 7054L20PRFG8 permits simultaneous access-including writes-to the same memory location across all four ports, but the datasheet explicitly states that "no more than one port can write to the same address location at the same time" to ensure data integrity. Concurrent writes from multiple ports to identical addresses are undefined and must be avoided in system design.
What is the pin-compatible replacement for the 7054L20PRFG8?
There is no pin-compatible replacement for the 7054L20PRFG8. The 128-pin TQFP pinout is unique to the IDT7054 family, and no second-source or functionally identical successor part replicates its four-port address/data/control signal mapping. System redesign is required for migration.
How does the CE pin function on each port of the 7054L20PRFG8?
Each port (P1–P4) has its own CE pin (CEP1–CEP4). When asserted low (CE = VIL), the port is enabled for normal read/write operation. When high (CE = VIH), the port enters standby mode drawing ≤1.5 mA - this per-port power gating is a core feature of the 7054L20PRFG8's low-power architecture.
Is the 7054L20PRFG8 RoHS compliant and lead-free?
Yes, the "G" suffix in 7054L20PRFG8 indicates green (lead-free, halogen-free) packaging per Renesas' standard compliance policy. The ordering information confirms "G = Green", and the device meets JEDEC J-STD-609 Category 1a marking requirements as documented in the April 2022 datasheet revision.
7054L20PRFG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 128-LQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Quad Port, Asynchronous
- Memory Size:
- 32Kbit
- Memory Organization:
- 4K x 8
- 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:
- Surface Mount
- Supplier Device Package:
- 128-TQFP (14x20)
7054L20PRFG8 FAQ
1.How can I place an order for 7054L20PRFG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7054L20PRFG8 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 7054L20PRFG8 reliable?
The price and inventory of 7054L20PRFG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7054L20PRFG8 is usually 5 days.
3.What payment methods are accepted for 7054L20PRFG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7054L20PRFG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7054L20PRFG8?
7054L20PRFG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7054L20PRFG8 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 7054L20PRFG8?
For technical support, including 7054L20PRFG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7054L20PRFG8 requirements.
6.How does Aetrix verify that 7054L20PRFG8 is sourced from the original manufacturer or authorized distributors?
All 7054L20PRFG8 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 7054L20PRFG8 meets industry standards.
7.What is the process for return or replacement of 7054L20PRFG8?
All 7054L20PRFG8 units undergo pre-shipment inspection (PSI). If there is an issue with 7054L20PRFG8, 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 7054L20PRFG8 part is unused and in its original packaging.
Return procedure for 7054L20PRFG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7054L20PRFG8 Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
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
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
