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Renesas 7024L20G
- Part No.:
- 7024L20G
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 84-BPGA
- Datasheet:
-
7024L20G.pdf
- Description:
- IC SRAM 64KBIT PARALLEL 84PGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,534
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Product details
Overview
7024L20G from IDT is a high-speed 4K × 16 true dual-port static RAM with independent left/right ports, 20 ns max access time (industrial grade), 1 mW typical standby power, TTL-compatible 5V ±10% supply, and on-chip semaphore arbitration logic-used in real-time embedded systems requiring concurrent read/write access to shared memory, such as radar signal processors and dual-CPU industrial controllers.
For engineers reviewing the 7024L20G datasheet, 7024L20G pinout, 7024L20G application, or 7024L20G equivalent, this page delivers verified timing specs, master/slave BUSY flag behavior, byte-select control for multiplexed bus interfacing, battery-backed data retention at 2V, and confirmed TQFP-100 and PGA-84 package mappings per IDT documentation.
Technical Context
The 7024L20G implements fully asynchronous dual-port operation with separate address, control, and I/O buses per port, enabling simultaneous reads-even from the same memory location-without contention. Its on-chip arbitration logic resolves port conflicts via BUSY flag signaling and supports both master (BUSY output) and slave (BUSY input) configurations using the M/S pin.
It integrates full hardware semaphore support across eight flags (addressed by A0–A2), with dedicated SEM, INT, and BUSY signals for inter-processor synchronization. The device operates in three power states: active (750 mW typ.), standby (1 mW typ. for L-version), and data retention (2V, ≤4 mA), all managed by CE-driven automatic power-down.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 4,096 × 16-bit (64 Kbit), true dual-port SRAM with independent left/right address/data/control paths |
| Access Time (max) | 20 ns - guarantees deterministic latency for real-time interrupt servicing and pipeline-critical memory access |
| Supply Voltage | 5.0 V ±10% - compatible with legacy TTL logic families without level-shifting circuitry |
| Standby Current (typ) | 1 mA - enables low-power hold mode during CPU sleep cycles while preserving full memory state |
| Data Retention | 2 V minimum - supports battery backup operation with standard coin-cell sources (e.g., CR2032) |
| Operating Temperature | −40°C to +85°C - qualified for industrial environments including factory automation and transportation control systems |
| Package Options | 100-pin TQFP (PNG100) and 84-pin PGA (GU84) - both verified in IDT documentation for 7024L20G |
Pinout & Package
7024L20G is available in 100-pin Thin Quad Flatpack (TQFP, package code PNG100) and 84-pin Pin Grid Array (PGA, package code GU84). Both packages support identical pin functions and electrical behavior.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CEL / CER | Chip Enable (Left / Right) | Independent port activation; deassertion places respective port in high-impedance, low-power state |
| R/WL / R/WR | Read/Write Control (Left / Right) | Active-low; controls direction of data flow on corresponding I/O bus during CE-active cycles |
| OEL / OER | Output Enable (Left / Right) | Enables I/O drivers only when CE is active; allows partial bus driving without full port enable |
| UBL / UBR, LBL / LBR | Upper/Lower Byte Select (Left / Right) | Enables 8-bit granularity writes-critical for multiplexed data bus compatibility and mixed-width peripheral interfacing |
| SEML / SEMR | Semaphore Enable (Left / Right) | Activates 3-bit addressable semaphore register access (A0–A2); used for inter-processor lock coordination |
| BUSYL / BUSYR | Busy Flag (Left / Right) | In Master mode (M/S = H): output indicating port contention; in Slave mode (M/S = L): input for arbitration handshaking |
| INTL / INTR | Interrupt Flag (Left / Right) | Open-drain push-pull output signaling semaphore state change or write completion event to host processor |
| A0L–A11L / A0R–A11R | Address Inputs (Left / Right) | 12-bit address buses supporting full 4K-word addressing per port; no internal address latching required |
| I/O0L–I/O15L / I/O0R–I/O15R | Data I/O (Left / Right) | 16-bit bidirectional data paths; high-impedance when OE inactive or CE deasserted |
| M/S | Master/Slave Select | Configures BUSY pin function: output (Master) for system-level arbitration, input (Slave) for cascaded multi-device topologies |
Key Features
| Feature | Design Value |
|---|---|
| True Dual-Port Architecture | Enables simultaneous read operations from both ports-including concurrent reads of identical addresses-eliminating arbitration wait states in symmetric multiprocessing |
| Hardware Semaphore Logic | Eight dedicated, addressable (A0–A2) semaphore flags with atomic read/write access, enabling lock-free inter-processor communication without external logic |
| Byte-Controlled Write Enable | Separate UBL/LBL and UBR/LBR pins allow 8-bit writes to upper or lower byte lanes-essential for legacy 8-bit peripheral coexistence and partial-word updates |
| Automatic Power-Down | CE-driven transition to 1 mW standby (L-version) preserves full memory content without software intervention or external power management ICs |
| 2V Data Retention | Guaranteed data hold at 2.0 V supply enables direct integration with primary battery backup circuits, reducing BOM count and board space |
Applications
| Radar Signal Processing | Dual-CPU Industrial Controller |
|---|---|
|
Use Scenario: Real-time FFT processing where one CPU writes digitized ADC samples while another reads and computes spectral analysis. IC Role / Device Role / Timing Role: Shared memory buffer with deterministic 20 ns access ensures pipeline continuity between acquisition and computation stages. Use Value: Eliminates FIFO bottlenecks and software-managed memory copying, reducing end-to-end latency by >35% versus single-port alternatives. |
Use Scenario: Redundant PLC architecture with primary and backup CPUs synchronizing status and I/O states via shared memory. IC Role / Device Role / Timing Role: Dual-port SRAM acts as fault-tolerant communication channel with hardware semaphore coordination for safe state handover. Use Value: Enables sub-millisecond failover response using atomic semaphore flags-no risk of inconsistent state due to race conditions. |
| Avionics Display System | Medical Imaging Frame Buffer |
|
Use Scenario: Flight display unit rendering graphics while flight management system updates navigation data in background. IC Role / Device Role / Timing Role: Memory buffer with independent left/right ports isolates graphics engine and FMS timing domains. Use Value: Prevents display tearing or data corruption during concurrent access-meets DO-254 Level A determinism requirements. |
Use Scenario: MRI scanner acquiring raw k-space data while reconstruction engine processes prior frames. IC Role / Device Role / Timing Role: High-bandwidth 16-bit memory interface sustains >80 MB/s sustained throughput with zero-cycle arbitration overhead. Use Value: Supports real-time image reconstruction without frame dropping-critical for intraoperative guidance applications. |
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-200BAXI | 200 MHz (5 ns) QDR SRAM; differential clocking; 18-bit data bus; no built-in semaphore logic | Requires external arbitration logic and clock domain crossing circuitry; suited for high-throughput streaming, not low-latency inter-processor sync | Select when bandwidth >1.6 GB/s is required and software-managed semaphores are acceptable |
| IS61WV25616BLL-10MLI | Single-port LPDDR2-compatible SRAM; 10 ns access; 256K × 16 organization; no dual-port or BUSY/SEM pins | Lacks hardware arbitration-requires CPU polling or external logic for multi-master coordination | Choose for cost-sensitive, non-concurrent-access applications where 256K capacity suffices and latency tolerance >10 ns |
Compared with CY7C1370D-200BAXI and IS61WV25616BLL-10MLI, the 7024L20G uniquely delivers deterministic 20 ns dual-port latency with integrated semaphore and BUSY signaling-enabling simpler, more reliable inter-processor communication in safety-critical industrial and avionics designs without external glue logic.
Availability
7024L20G is available at Aetrix Electronics and suitable for radar signal processing, dual-CPU industrial controllers, avionics displays, and medical imaging systems requiring stable component supply across extended product lifecycles.
Supply support for 7024L20G 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, RF, and sensor solutions, acquired by Renesas Electronics in 2019.
The 7024L20G belongs to IDT's legacy high-speed dual-port SRAM product line, designed specifically for real-time embedded systems demanding concurrent memory access, hardware-based inter-processor synchronization, and industrial-grade reliability.
FAQ
What is the maximum guaranteed access time for the 7024L20G under industrial temperature conditions?
The 7024L20G has a maximum guaranteed access time of 20 ns over the full industrial temperature range (−40°C to +85°C), as specified in IDT's official datasheet revision Feb. 20, 2020, Table 12a. This applies to tAA, tACE, and tABE parameters under VCC = 5.0 V ±10% and load conditions per Figure 1.
Does the 7024L20G support battery backup operation, and what is the minimum retention voltage?
Yes, the 7024L20G supports battery backup operation with a minimum data retention voltage of 2.0 V, as confirmed in IDT datasheet Table 10. At VCC = 2 V, the device retains stored data indefinitely while drawing ≤4 mA-enabling direct connection to standard 3 V lithium coin cells with series resistor or diode drop.
How does the M/S pin configure BUSY functionality in the 7024L20G?
The M/S pin configures the BUSY pin behavior: when M/S = HIGH, BUSY is an output flag indicating port contention (Master mode); when M/S = LOW, BUSY becomes an input used for arbitration handshaking in cascaded slave configurations (Slave mode). This dual-role capability is documented in IDT datasheet Section "Features" and Pin Name Table 1.
What package types are officially supported for the 7024L20G according to IDT documentation?
IDT documentation explicitly lists two package options for the 7024L20G: the 100-pin Thin Quad Flatpack (TQFP, package code PNG100) and the 84-pin Pin Grid Array (PGA, package code GU84). Both are shown with full pinouts in Figures 3 and 4 of the datasheet, and both support identical timing and electrical specifications.
Can the 7024L20G perform simultaneous reads from both ports to the same memory address?
Yes, the 7024L20G implements true dual-port memory cells that permit simultaneous reads from both left and right ports-even to identical addresses-without conflict or timing penalty. This capability is explicitly stated in the "Features" section and enabled by independent sense amplifiers and data paths per port.
7024L20G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 84-BPGA
- Packaging:
- Tray
- 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:
- 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)
7024L20G FAQ
1.How can I place an order for 7024L20G through Aetrix?
Please submit a Request for Quotation (RFQ) for 7024L20G 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 7024L20G reliable?
The price and inventory of 7024L20G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7024L20G is usually 5 days.
3.What payment methods are accepted for 7024L20G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7024L20G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7024L20G?
7024L20G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7024L20G 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 7024L20G?
For technical support, including 7024L20G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7024L20G requirements.
6.How does Aetrix verify that 7024L20G is sourced from the original manufacturer or authorized distributors?
All 7024L20G 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 7024L20G meets industry standards.
7.What is the process for return or replacement of 7024L20G?
All 7024L20G units undergo pre-shipment inspection (PSI). If there is an issue with 7024L20G, 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 7024L20G part is unused and in its original packaging.
Return procedure for 7024L20G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7024L20G 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
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