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Renesas 7007L20JGI
- Part No.:
- 7007L20JGI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 68-LCC (J-Lead)
- Datasheet:
-
7007L20JGI.pdf
- Description:
- IC SRAM 256KBIT PARALLEL 68PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,061
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Product details
Overview
IDT7007L20JGI from IDT (now Renesas) is a high-speed 32K × 8 dual-port static RAM with true independent left/right ports, 20 ns maximum access time (industrial grade), 5 V ±10% single-supply operation, and on-chip semaphore/interrupt arbitration logic - deployed in real-time inter-processor communication systems requiring concurrent memory access without external logic.
For engineers reviewing the IDT7007L20JGI datasheet, IDT7007L20JGI pinout, IDT7007L20JGI application, or IDT7007L20JGI equivalent, key selection criteria include BUSY-flag arbitration timing (tBDD ≤ 30 ns), dual-port standby current (ISB3 = 0.2 mA typ.), master/slave cascading capability via M/S pin, and industrial temperature support (–40°C to +85°C).
Technical Context
The IDT7007L20JGI implements fully asynchronous dual-port architecture with separate address, data, and control buses per port (A0L–A14L/I/O0L–I/O7L/CEL/OEL/R/WL on left; A0R–A14R/I/O0R–I/O7R/CER/OER/R/WR on right), enabling simultaneous read/write to same or different addresses. Its on-chip arbitration logic resolves contention using BUSY flag assertion (push-pull, non-tri-stated) and M/S-selectable master/slave behavior.
It supports two distinct memory access modes: standard RAM access (CE = VIL, SEM = VIH) and semaphore register access (CE = VIH, SEM = VIL), with dedicated interrupt flags (INTL/INTR) tied to fixed mailbox addresses (7FFEh/7FFFh) and full hardware semaphore signaling across eight flags addressed by A0–A2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 32K × 8 bits (256 Kbit total), dual-port SRAM with independent left/right address/data/control paths |
| Access Time (tAA) | 20 ns max - guarantees deterministic read latency for real-time inter-processor handshaking |
| Supply Voltage | 5.0 V ±10% - TTL-compatible single supply; no level-shifting required in legacy 5 V systems |
| Operating Temperature | –40°C to +85°C - qualified for industrial embedded control and motor drive applications |
| Standby Current (ISB3) | 0.2 mA typical - ultra-low power full standby mode when both ports disabled (CMOS-level inputs) |
| Bus Arbitration | Hardware BUSY flag (push-pull) + M/S pin - enables master/slave cascading without external glue logic |
| Interrupt & Semaphore | Dedicated INTL/INTR outputs + 8-bit semaphore registers (A0–A2 addressable) - supports lock-free synchronization between processors |
Pinout & Package
Package: 80-pin TQFP (14 mm × 14 mm × 1.4 mm), lead-free, RoHS-compliant, industrial-grade thermal profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A14L | Left port address inputs | 15-bit address bus for left-side memory access (32K = 2¹⁵) |
| A0R–A14R | Right port address inputs | Independent 15-bit address bus for concurrent right-side access |
| I/O0L–I/O7L | Left port bidirectional data | 8-bit data path; tri-stated when OEL = VIH or CEL = VIH |
| I/O0R–I/O7R | Right port bidirectional data | Independent 8-bit data path; no contention with left port I/O |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; controls automatic power-down (ISB modes) |
| OEL / OER | Output enable (left/right) | Active-low enables output drivers; overrides R/W state for read gating |
| R/WL / R/WR | Read/write control (left/right) | Active-low write; high = read (asynchronous, no clock required) |
| SEML / SEMR | Semaphore enable (left/right) | Active-low selects semaphore register access instead of RAM array |
| INTL / INTR | Interrupt flag outputs | Open-drain compatible (internal pull-up implied); asserted on mailbox writes (7FFEh/7FFFh) |
| BUSYL / BUSYR | Busy flag (input/output) | Push-pull; output when M/S = H (master), input when M/S = L (slave); blocks writes during contention |
| M/S | Master/slave select | H = BUSY outputs enabled (master); L = BUSY inputs accepted (slave) - enables multi-device expansion |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port SRAM cells | Enables simultaneous reads/writes to same memory location - eliminates need for shadow buffers or software locks |
| Hardware semaphore logic | Eight dedicated flags (A0–A2 addressable) with atomic read/write - supports priority-based resource allocation across CPUs |
| On-chip BUSY arbitration | Automatic port-to-port conflict resolution via push-pull BUSY signals - prevents data corruption without CPU intervention |
| Master/slave cascading | M/S pin configures device as master (BUSY output) or slave (BUSY input) - enables 16-bit+ data bus expansion without external logic |
| Industrial-grade power management | 0.2 mA full standby (ISB3) and 850 mW active power (typ.) - suitable for thermally constrained industrial controllers |
Applications
| Motor Control System | Industrial PLC Backplane |
|---|---|
Use Scenario: Two microcontrollers (motion controller + safety monitor) share status, setpoints, and fault logs in real time. IC Role / Device Role / Timing Role: Dual-port SRAM acts as shared memory buffer with hardware arbitration - eliminates polling delays and race conditions. Use Value: 20 ns access ensures sub-µs inter-processor message latency; BUSY flag guarantees deterministic write ordering during torque command updates. |
Use Scenario: Multiple I/O modules exchange process data with central CPU over parallel backplane bus. IC Role / Device Role / Timing Role: IDT7007L20JGI serves as local data cache and mailbox between CPU and fieldbus interface ASIC. Use Value: M/S pin enables stacking multiple IDT7007L20JGI devices for wider data paths; ISB3 < 0.5 mA reduces module standby power budget. |
| Avionics Data Concentrator | Medical Imaging Subsystem |
Use Scenario: ARINC 429 receiver and MIL-STD-1553B host processor exchange sensor fusion results. IC Role / Device Role / Timing Role: Acts as deterministic, radiation-tolerant (industrial temp-rated) shared memory with interrupt-driven notification. Use Value: INTL/INTR flags eliminate polling overhead; –40°C to +85°C rating meets DO-160 environmental test requirements. |
Use Scenario: FPGA-based image preprocessor and ARM application processor coordinate frame buffering and compression. IC Role / Device Role / Timing Role: Provides zero-wait-state memory window for DMA transfers between heterogeneous processors. Use Value: Simultaneous read/write allows FPGA to fill one buffer while ARM reads previous - sustains >100 MB/s sustained throughput. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Cypress CY7C028V-20AC | 20 ns access, 32K × 8, but uses 5 V only (no ±10% tolerance); no integrated semaphore logic | Requires external logic for semaphore/INT handling; less suited for lock-free IPC | Choose when cost sensitivity outweighs arbitration feature need and system voltage is tightly regulated |
| Renesas R1EX24064ASAS0I#U0 | Serial EEPROM (64 Kbit), I²C interface, 5 ms write cycle - fundamentally different architecture and speed class | Not a functional substitute: lacks dual-port, concurrency, or sub-100 ns access | Only consider for non-real-time configuration storage where dual-port capability is unnecessary |
Compared with CY7C028V-20AC and R1EX24064ASAS0I#U0, IDT7007L20JGI uniquely delivers hardware-enforced arbitration, true dual-port concurrency, and industrial temperature reliability in a single 80-pin TQFP - making it irreplaceable for deterministic inter-processor communication.
Availability
IDT7007L20JGI is available at Aetrix Electronics and suitable for motor control systems, industrial PLC backplanes, and avionics data concentrators requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature performance.
Supply support for IDT7007L20JGI 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 (formerly Integrated Device Technology) is a global semiconductor leader specializing in microcontrollers, analog, power, and memory solutions for industrial, automotive, and infrastructure markets.
IDT7007L20JGI belongs to the IDT7000 family of high-speed dual-port SRAMs, designed specifically for real-time inter-processor communication in systems demanding deterministic latency, hardware arbitration, and seamless master/slave expansion.
FAQ
What is the operating temperature range for IDT7007L20JGI?
IDT7007L20JGI is rated for industrial temperature operation from –40°C to +85°C. This specification is validated per the datasheet's Recommended DC Operating Conditions table and applies to all electrical parameters including access time (20 ns max), standby current (ISB3 = 0.2 mA typ.), and BUSY arbitration timing (tBDD ≤ 30 ns). It is not rated for commercial (0°C to +70°C) or military (–55°C to +125°C) grades.
Does IDT7007L20JGI support true simultaneous read/write to the same memory location?
Yes, IDT7007L20JGI features true dual-port SRAM cells that allow independent, asynchronous reads or writes to the same memory address from left and right ports simultaneously. This capability is explicitly stated in the "Features" section and confirmed by the Functional Block Diagram showing fully separated I/O, address, and control paths - eliminating the need for software coordination or external arbitration logic.
How does the M/S pin affect BUSY signal behavior on IDT7007L20JGI?
When M/S = H, IDT7007L20JGI operates as a master: BUSYL and BUSYR are push-pull outputs asserting busy status during port contention. When M/S = L, it operates as a slave: BUSYL and BUSYR become inputs that must be driven externally (e.g., by a master device) to inhibit writes. This dual-mode behavior is defined in the Pin Names table and Truth Table IV, enabling flexible master/slave cascading topologies.
What are the interrupt mailbox addresses for IDT7007L20JGI?
IDT7007L20JGI uses fixed-address mailboxes for interrupt generation: writing to address 7FFEh (hex) on the right port asserts the left-port interrupt flag (INTL), and writing to 7FFFh on the left port asserts the right-port flag (INTR). These addresses are specified in Truth Table III and the Functional Description section - they are hardwired and not configurable via registers or pins.
Can IDT7007L20JGI be used in a 16-bit data bus configuration?
Yes, IDT7007L20JGI supports 16-bit expansion via master/slave cascading: two devices can be connected with M/S = H on one (master) and M/S = L on the other (slave), using BUSY signals to coordinate access. The datasheet explicitly states "IDT7007 easily expands data bus width to 16 bits or more using the Master/Slave select when cascading more than one device," and provides timing diagrams for this configuration.
7007L20JGI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 68-LCC (J-Lead)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Asynchronous
- Memory Size:
- 256Kbit
- Memory Organization:
- 32K 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 68-PLCC (24.21x24.21)
7007L20JGI FAQ
1.How can I place an order for 7007L20JGI through Aetrix?
Please submit a Request for Quotation (RFQ) for 7007L20JGI 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 7007L20JGI reliable?
The price and inventory of 7007L20JGI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7007L20JGI is usually 5 days.
3.What payment methods are accepted for 7007L20JGI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7007L20JGI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7007L20JGI?
7007L20JGI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7007L20JGI 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 7007L20JGI?
For technical support, including 7007L20JGI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7007L20JGI requirements.
6.How does Aetrix verify that 7007L20JGI is sourced from the original manufacturer or authorized distributors?
All 7007L20JGI 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 7007L20JGI meets industry standards.
7.What is the process for return or replacement of 7007L20JGI?
All 7007L20JGI units undergo pre-shipment inspection (PSI). If there is an issue with 7007L20JGI, 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 7007L20JGI part is unused and in its original packaging.
Return procedure for 7007L20JGI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7007L20JGI Tags
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M24C02-WMN6TP
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