My Inquiry
My Account
Renesas 7024L25G
- Part No.:
- 7024L25G
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 84-BPGA
- Datasheet:
-
7024L25G.pdf
- Description:
- IC SRAM 64KBIT PARALLEL 84PGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,782
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
7024L25G from IDT (Integrated Device Technology) is a high-speed 4K × 16 true dual-port static RAM with independent left/right ports, 25 ns max read cycle time, TTL-compatible 5V ±10% supply, and 1 µA typical standby current. It enables simultaneous asynchronous access to the same memory location and supports master/slave cascading for 32-bit+ bus expansion in real-time inter-processor communication systems.
For engineers reviewing the 7024L25G datasheet, 7024L25G pinout, 7024L25G application, or 7024L25G equivalent, key selection considerations include its dual-port arbitration logic, on-chip semaphore signaling, battery backup data retention at 2V, industrial temperature range (–40°C to +85°C), and compatibility with 84-pin PLCC, PGA, Flatpack, and 100-pin TQFP packages.
Technical Context
The 7024L25G implements full hardware port arbitration with BUSY flag generation (M/S = H) or acceptance (M/S = L), enabling deterministic conflict resolution between ports. Its semaphore logic supports eight shared flags addressed via A0–A2, with dedicated SEM, UBL/LBL, and interrupt (INTL/INTR) signals for inter-processor synchronization.
It operates fully asynchronously per port, with separate CE, R/W, OE, UB/LB controls for each side. The device enters ultra-low-power standby (<1 µA typ.) when both chip enables are high and inputs meet CMOS-level thresholds, while retaining data down to 2V - critical for battery-backed systems requiring nonvolatile operation during main power loss.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 4K × 16 (64 Kbit), true dual-port SRAM with independent address/data/control per port |
| Access Time (tAA) | 25 ns max - guarantees full-speed operation in 40 MHz bus systems without wait states |
| Supply Voltage | 5.0 V ±10% - compatible with standard TTL logic families and legacy 5V system rails |
| Standby Current (ISB3) | 1 µA typ. - enables multi-year battery backup with minimal drain during system sleep |
| Operating Temperature | –40°C to +85°C - qualified for industrial embedded control, avionics, and telecom infrastructure |
| Data Retention Voltage | 2.0 V min - preserves memory contents during brownout or primary power failure |
| Package Options | 84-pin PLCC, PGA, Flatpack; 100-pin TQFP - supports through-hole and surface-mount board designs |
Pinout & Package
7024L25G is available in multiple industry-standard packages: 84-pin PLCC (PLG84), 84-pin ceramic PGA (GU84), 84-pin Flatpack (FP84), and 100-pin Thin Quad Flatpack (PNG100). Pin functions are identical across all variants; mechanical dimensions and mounting differ per package type.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CEL / CER | Chip Enable (Left / Right) | Active-low enable per port; controls power-up/down of respective port's I/O drivers and internal logic |
| R/WL / R/WR | Read/Write Control (Left / Right) | Determines direction of data transfer; low = write, high = read (with OE active) |
| OEL / OER | Output Enable (Left / Right) | Tri-states I/O pins independently per port; essential for bus sharing and contention avoidance |
| UBL / UBR, LBL / LBR | Upper/Lower Byte Select | Enables byte-level granularity for 16-bit bus multiplexing or partial writes without affecting other byte |
| SEML / SEMR | Semaphore Enable | Activates on-chip semaphore register access (A0–A2) for inter-processor locking and resource coordination |
| BUSYL / BUSYR | Busy Flag (Master Output / Slave Input) | When M/S = H, BUSY is output indicating port contention; when M/S = L, BUSY is input for slave arbitration |
| INTL / INTR | Interrupt Flag | Open-drain push-pull output signaling semaphore state change or arbitration event to host processor |
| A0L–A11L / A0R–A11R | Address Inputs (12-bit per port) | Directly select one of 4K locations per port; no external address latching required |
| I/O0L–I/O15L / I/O0R–I/O15R | Bidirectional Data Bus (16-bit per port) | True dual-port data path - simultaneous reads/writes to same address permitted without corruption |
| M/S | Master/Slave Select | Configures device role in cascaded systems: high = master (BUSY output), low = slave (BUSY input) |
Key Features
| Feature | Design Value |
|---|---|
| True Dual-Port Architecture | Simultaneous independent read/write access to identical memory locations - eliminates software arbitration overhead in real-time IPC |
| On-Chip Semaphore Logic | Eight hardware semaphore flags accessible via A0–A2, enabling atomic lock/unlock operations without external logic or CPU intervention |
| Full Hardware Arbitration | Automatic BUSY assertion on address/contention detection; priority resolved by earliest valid access - no firmware polling needed |
| Battery Backup Data Retention | Retains valid data at 2V supply with only 100 µA max ICCDR - supports seamless failover in mission-critical systems |
| Low-Power Standby Mode | 1 µA typical ISB3 current with CMOS-level inputs - extends battery life in portable or remote monitoring applications |
Applications
| Industrial PLC Communication | Aerospace Flight Control Interface |
|---|---|
|
Use Scenario: Two independent microcontrollers exchange sensor data and actuator commands in real time within a programmable logic controller chassis. IC Role / Device Role / Timing Role: 7024L25G serves as shared memory buffer with hardware arbitration, enabling deterministic latency-bound message passing between safety-critical and non-safety partitions. Use Value: Eliminates need for external glue logic and reduces inter-processor handshake cycles by 100% versus software-managed FIFOs. |
Use Scenario: Redundant flight computers share telemetry, navigation updates, and control surface position data across dual-channel ARINC-429 interfaces. IC Role / Device Role / Timing Role: 7024L25G acts as synchronized dual-port memory with semaphore support, ensuring atomic access to shared state variables during cross-channel validation. Use Value: Guarantees sub-25 ns memory coherency across redundant channels, meeting DO-254 Level A timing requirements. |
| Telecom Baseband Processing | Medical Imaging Data Buffer |
|
Use Scenario: DSP and FPGA coordinate FFT processing and packet assembly in a 4G/LTE baseband subsystem using shared memory for IQ sample buffers. IC Role / Device Role / Timing Role: 7024L25G provides zero-wait-state dual-access memory with byte-select capability, allowing concurrent read (DSP) and write (FPGA) of overlapping 16-bit sample windows. Use Value: Enables continuous 120 MB/s throughput without pipeline stalls, sustaining real-time OFDM symbol processing. |
Use Scenario: CT scanner front-end ASIC streams raw detector data to a host processor for reconstruction, requiring glitch-free buffering during gantry rotation. IC Role / Device Role / Timing Role: 7024L25G functions as battery-backed frame buffer, preserving last acquired scan slice during brief power interruptions caused by slip-ring contact bounce. Use Value: Prevents image corruption or acquisition restart by maintaining 64 Kbit of critical context with <2V retention voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C1370D-250AXC | 250 MHz QDR interface, 18-bit data bus, 3.3V core, no built-in semaphore logic | Requires external arbitration logic and level-shifting for 5V systems; optimized for high-bandwidth streaming vs. deterministic IPC | Prefer for bandwidth-intensive applications where external control logic is acceptable and 3.3V supply is available |
| AS7C34098B-25JCIN | Single-port SRAM with external bus controller, 25 ns access, 5V, no dual-port or arbitration features | Needs discrete logic for dual-port emulation; lacks BUSY/SEM/INT signals - increases BOM count and PCB area | Only suitable when cost sensitivity outweighs design complexity and real-time determinism requirements |
Compared with CY7C1370D-250AXC and AS7C34098B-25JCIN, the 7024L25G uniquely delivers integrated hardware arbitration, battery-retained dual-port operation at 5V, and industrial temperature support - making it irreplaceable for deterministic, low-latency, fail-safe inter-processor communication without external components.
Availability
7024L25G is available at Aetrix Electronics and suitable for industrial automation, aerospace avionics, telecom infrastructure, and medical imaging systems requiring stable component supply, long-term lifecycle assurance, and guaranteed traceability.
Supply support for 7024L25G 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 high-performance timing, memory, and interface solutions before its acquisition by Renesas Electronics in 2019. Its dual-port SRAM portfolio emphasized reliability and real-time determinism.
The 7024L25G belongs to IDT's legacy 7000-series dual-port SRAM family, engineered specifically for deterministic inter-processor communication in safety-critical and industrial control environments where hardware-enforced arbitration and battery backup are mandatory.
FAQ
What is the maximum operating speed of the 7024L25G?
The 7024L25G has a maximum read cycle time (tRC) of 25 ns, corresponding to a theoretical maximum operating frequency of 40 MHz under ideal conditions. This speed applies across commercial and industrial temperature ranges when powered at 5.0 V ±10%. The 7024L25G achieves this performance while maintaining full dual-port functionality, including simultaneous access and hardware arbitration - unlike single-port alternatives requiring external logic to emulate dual-port behavior.
Does the 7024L25G support battery backup operation?
Yes, the 7024L25G supports battery backup operation with data retention down to 2.0 V (VDR), drawing ≤4000 µA typical ICCDR current in retention mode. This feature allows the 7024L25G to preserve memory contents during main power failure or brownout events - critical for applications like medical imaging buffers, industrial PLCs, and aerospace systems where data integrity must survive power loss. The L suffix explicitly denotes the low-power variant optimized for this capability.
How does the Master/Slave (M/S) pin function in the 7024L25G?
The M/S pin configures the 7024L25G's arbitration role: when high, it operates as a master with BUSY output flag; when low, as a slave with BUSY input. In master mode, the 7024L25G asserts BUSY on contention to block the slave port; in slave mode, it monitors BUSY to defer writes until the master releases the address. This enables scalable cascading - e.g., two 7024L25G devices can form a 32-bit-wide memory with automatic priority resolution, eliminating external arbitration logic.
What package types are available for the 7024L25G?
The 7024L25G is offered in four package variants: 84-pin PLCC (PLG84), 84-pin ceramic PGA (GU84), 84-pin Flatpack (FP84), and 100-pin TQFP (PNG100). All share identical pinout and electrical characteristics; differences lie in mechanical form factor, thermal performance, and mounting method. The PLCC version is most common for prototyping and industrial boards, while the TQFP suits high-density SMT layouts. Each package is qualified for industrial temperature operation (–40°C to +85°C).
Can the 7024L25G perform simultaneous reads from both ports to the same memory location?
Yes, the 7024L25G uses true dual-port memory cells that allow simultaneous reads from both left and right ports to the exact same address location without conflict, delay, or data corruption. This capability is fundamental to its architecture and requires no arbitration or BUSY assertion. Simultaneous read is supported at full speed (25 ns access) and forms the basis for efficient data broadcasting, mirrored logging, and real-time monitoring applications where multiple processors require identical memory snapshots.
7024L25G 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:
- 64Kbit
- Memory Organization:
- 4K 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:
- 84-PGA (27.94x27.94)
7024L25G FAQ
1.How can I place an order for 7024L25G through Aetrix?
Please submit a Request for Quotation (RFQ) for 7024L25G 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 7024L25G reliable?
The price and inventory of 7024L25G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7024L25G is usually 5 days.
3.What payment methods are accepted for 7024L25G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7024L25G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7024L25G?
7024L25G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7024L25G 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 7024L25G?
For technical support, including 7024L25G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7024L25G requirements.
6.How does Aetrix verify that 7024L25G is sourced from the original manufacturer or authorized distributors?
All 7024L25G 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 7024L25G meets industry standards.
7.What is the process for return or replacement of 7024L25G?
All 7024L25G units undergo pre-shipment inspection (PSI). If there is an issue with 7024L25G, 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 7024L25G part is unused and in its original packaging.
Return procedure for 7024L25G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7024L25G 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…
