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Renesas 7024L15JG8
- Part No.:
- 7024L15JG8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 84-LCC (J-Lead)
- Datasheet:
-
7024L15JG8.pdf
- Description:
- IC SRAM 64KBIT PARALLEL 84PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,882
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Product details
Overview
7024L15JG8 from IDT is a high-speed 4K × 16 true dual-port static RAM with independent left/right ports, 15 ns maximum read cycle time (commercial grade), 2V data retention capability, and full on-chip semaphore arbitration logic - deployed in real-time inter-processor communication systems requiring simultaneous access to shared memory without external logic.
For engineers reviewing the 7024L15JG8 datasheet, 7024L15JG8 pinout, 7024L15JG8 application, or 7024L15JG8 equivalent, key selection considerations include its dual-port asynchronous operation, M/S-selectable master/slave BUSY signaling, battery-backed low-power standby (1 µA typical), and compatibility with 5V ±10% TTL-level systems across industrial temperature range.
Technical Context
The 7024L15JG8 implements fully independent address/data/control paths for left and right ports, enabling concurrent reads or writes-including simultaneous reads of the same memory location-without contention. Its on-chip arbitration logic resolves port conflicts via BUSY flag assertion and supports eight hardware semaphores addressed by A0–A2.
It operates in two distinct modes: as a standalone 64K-bit dual-port RAM or cascaded in master/slave configuration using the M/S pin to expand data bus width to 32 bits or more. The L-version delivers ultra-low standby current (1 µA typical) and guaranteed 2V data retention, distinguishing it from the S-version's higher active power profile.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 4K × 16 (64 Kbit), true dual-port SRAM with separate I/O, address, and control per port |
| Access Time (tAA) | 15 ns max - enables 66.7 MHz sustained read throughput per port in commercial applications |
| Supply Voltage | 5.0 V ±10% - TTL-compatible single-supply operation; no level-shifting required in legacy 5V systems |
| Standby Current (ISB3) | 0.2 µA typical - supports battery backup with 2V data retention for nonvolatile state preservation |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments without derating |
| Package | 84-pin PLCC (JG8 suffix) - surface-mount compatible with standard reflow profiles and IPC-compliant footprint |
| Arbitration Logic | On-chip hardware semaphore (8 flags) and BUSY flag with master/slave select (M/S pin) - eliminates need for external arbitration logic |
Pinout & Package
7024L15JG8 is packaged in an 84-pin Plastic Leaded Chip Carrier (PLCC), body size ≈ 1.15 in × 1.15 in × 0.17 in, with gull-wing leads and standard JEDEC MO-047A outline. Pin 1 marked by corner notch; pin numbering counterclockwise from notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A11L | Left port address inputs | 12-bit address bus for left port; selects one of 4K locations independently of right port |
| A0R–A11R | Right port address inputs | 12-bit address bus for right port; fully asynchronous with left port addressing |
| I/O0L–I/O15L | Left port bidirectional data | 16-bit data path; upper/lower byte controlled separately by UBL/LBL for multiplexed bus interfacing |
| I/O0R–I/O15R | Right port bidirectional data | 16-bit data path; independent timing and direction control per port |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; allows selective port power-down during multi-port operation |
| R/WL / R/WR | Read/write control (left/right) | Active-low write enable; when high, enables output drivers if OE is active |
| OEL / OER | Output enable (left/right) | Active-low enables data outputs; used with R/W to control tristate behavior during reads |
| UBL / UBR | Upper byte select (left/right) | Enables I/O8–I/O15 only; supports 8-bit bus expansion or partial-word writes |
| LBL / LBR | Lower byte select (left/right) | Enables I/O0–I/O7 only; enables byte-granularity access without external logic |
| SEML / SEMR | Semaphore enable (left/right) | Activates semaphore register access mode; toggles between RAM and semaphore address space (A0–A2) |
| INTL / INTR | Interrupt flag (left/right) | Open-drain push-pull output signals semaphore event or arbitration completion to host processor |
| BUSYL / BUSYR | BUSY flag (left/right) | When M/S = H (master), BUSY is output indicating port contention; when M/S = L (slave), BUSY is input for synchronization |
| M/S | Master/Slave select | Configures device role in cascaded systems: HIGH = master (BUSY output), LOW = slave (BUSY input) |
| VCC / GND | Power supply | Multiple VCC/GND pins distributed across package for low-noise, low-impedance power delivery and EMI reduction |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port architecture | Simultaneous independent read/write access to any memory location from both ports - eliminates software locks and improves real-time determinism |
| Hardware semaphore support | Eight dedicated semaphores accessed via A0–A2 and SEM pin - enables atomic resource sharing between processors without polling overhead |
| Master/slave cascade mode | M/S pin configures BUSY as output (master) or input (slave) - permits seamless 32-bit+ word expansion with zero external glue logic |
| 2V data retention | Retains full 4K × 16 content at 2V supply - enables battery backup for critical state storage during main power loss |
| Low-power L-version | 1 µA typical full-standby current (ISB3) - reduces system-level power budget in always-on industrial controllers |
| Industrial temperature range | –40°C to +85°C operation without derating - validated for deployment in motor drives, PLCs, and outdoor telecom equipment |
Applications
| Inter-Processor Communication | Digital Signal Processing Buffer |
|---|---|
Use Scenario: Two microcontrollers exchange sensor fusion data and control commands in real time with deterministic latency. IC Role / Device Role / Timing Role: Shared memory buffer with hardware arbitration prevents race conditions during concurrent access. Use Value: Eliminates need for software mutexes or external arbitration logic, reducing firmware complexity and worst-case latency by >3 µs. |
Use Scenario: A DSP core streams audio samples to a host MCU while simultaneously receiving filter coefficients. IC Role / Device Role / Timing Role: Dual-port RAM serves as ping-pong buffer between asymmetric processing domains. Use Value: Enables continuous data flow without pipeline stalls; 15 ns access ensures no bottleneck at 66.7 MHz sample rates. |
| Redundant Control System Memory | Legacy Bus Interface Bridge |
Use Scenario: Primary and backup flight control computers maintain synchronized state via shared memory with failover detection. IC Role / Device Role / Timing Role: Battery-backed dual-port RAM preserves critical state during power transitions between controllers. Use Value: 2V data retention guarantees state integrity for ≥100 hours on backup battery; ISB3 < 1 µA extends battery life. |
Use Scenario: Integrating a modern FPGA with legacy 16-bit ISA or VMEbus peripherals requiring byte-selectable access. IC Role / Device Role / Timing Role: Dual-port interface adapts between wide internal bus and narrow external bus with UBL/LBL control. Use Value: UBL/LBL pins enable direct 8-bit peripheral access without external byte-enable logic or bus transceivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C024AV-15JC | 15 ns access, 4K × 16, but uses 100-pin TQFP; no M/S pin - requires external arbitration for master/slave cascading | Lacks integrated BUSY arbitration and M/S configuration; suitable only for standalone dual-port use | Select when footprint flexibility is prioritized over cascade simplicity and board space is available for external logic. |
| IDT70V24L15PF | Same 4K × 16, 15 ns, L-version, but in 100-pin TQFP; includes JTAG boundary scan and LVDS-compatible I/O | Higher pin count and different voltage tolerance (3.3V I/O); not drop-in compatible with 5V TTL systems | Choose for new designs targeting lower EMI and future-proofing with JTAG debug, provided system supports 3.3V I/O levels. |
Compared with CY7C024AV-15JC and IDT70V24L15PF, the 7024L15JG8 uniquely combines 84-pin PLCC compactness, native 5V TTL compatibility, and integrated M/S-configurable arbitration - making it optimal for space-constrained industrial upgrades where legacy signal levels and minimal BOM changes are mandatory.
Availability
7024L15JG8 is available at Aetrix Electronics and suitable for industrial automation, avionics subsystems, and telecommunications infrastructure requiring stable component supply across extended product lifecycles.
Supply support for 7024L15JG8 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 timing, memory interface, and RF solutions, acquired by Renesas Electronics in 2019.
The IDT7024 family was designed specifically for real-time embedded systems requiring deterministic, contention-free inter-processor memory sharing - emphasizing hardware arbitration, low-latency access, and industrial reliability.
FAQ
What is the operating voltage range for the 7024L15JG8?
The 7024L15JG8 operates from 4.5 V to 5.5 V (5.0 V ±10%) and retains data down to 2.0 V. It is fully TTL-compatible and requires no level translation in legacy 5V systems. All VCC pins must be decoupled locally, and all GND pins must be connected to a low-impedance ground plane to meet AC timing specifications.
How does the M/S pin affect BUSY functionality in the 7024L15JG8?
When M/S = HIGH, the 7024L15JG8 operates as a master: BUSYL and BUSYR become push-pull outputs that assert during port contention. When M/S = LOW, it operates as a slave: BUSYL and BUSYR become inputs synchronized to the master's BUSY signal - enabling coordinated multi-device arbitration without external logic.
Can the 7024L15JG8 perform simultaneous reads from both ports to the same memory address?
Yes - the 7024L15JG8 uses true dual-port SRAM cells that allow concurrent reads from both left and right ports to identical addresses with no timing penalty or data corruption. This capability is fundamental to its architecture and is explicitly verified in the functional block diagram and truth tables of the official IDT7024 datasheet.
What is the significance of the 'L' in 7024L15JG8?
The 'L' denotes the low-power version of the IDT7024, delivering 1 µA typical full-standby current (ISB3) and guaranteed 2V data retention. This distinguishes it from the 'S' version (750 mW active, 5 µA standby) and makes the 7024L15JG8 suitable for battery-backed applications where energy efficiency is critical.
Which package type corresponds to the 'JG8' suffix in 7024L15JG8?
The 'JG8' suffix specifies an 84-pin Plastic Leaded Chip Carrier (PLCC) package with JEDEC MO-047A outline, approximately 1.15 in × 1.15 in × 0.17 in. This package is RoHS-compliant, surface-mountable, and widely supported in industrial PCB assembly processes.
7024L15JG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 84-LCC (J-Lead)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 15ns
- Access Time:
- 15 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 84-PLCC (29.31x29.31)
7024L15JG8 FAQ
1.How can I place an order for 7024L15JG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7024L15JG8 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 7024L15JG8 reliable?
The price and inventory of 7024L15JG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7024L15JG8 is usually 5 days.
3.What payment methods are accepted for 7024L15JG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7024L15JG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7024L15JG8?
7024L15JG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7024L15JG8 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 7024L15JG8?
For technical support, including 7024L15JG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7024L15JG8 requirements.
6.How does Aetrix verify that 7024L15JG8 is sourced from the original manufacturer or authorized distributors?
All 7024L15JG8 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 7024L15JG8 meets industry standards.
7.What is the process for return or replacement of 7024L15JG8?
All 7024L15JG8 units undergo pre-shipment inspection (PSI). If there is an issue with 7024L15JG8, 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 7024L15JG8 part is unused and in its original packaging.
Return procedure for 7024L15JG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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