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Renesas 7007L20PF8
- Part No.:
- 7007L20PF8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 80-LQFP
- Datasheet:
-
7007L20PF8.pdf
- Description:
- IC SRAM 256KBIT PARALLEL 80TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,393
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Product details
Overview
IDT7007L20PF8 from IDT (Integrated Device Technology) is a high-speed 32K × 8 dual-port static RAM with true independent left/right port access, 20 ns maximum access time (industrial grade), 5 V ±10% single-supply operation, and on-chip semaphore/interrupt arbitration logic. It serves as a stand-alone 256 Kbit memory or master/slave pair in 16-bit+ bus systems for real-time interprocessor communication in industrial PLCs and embedded control.
For engineers reviewing the IDT7007L20PF8 datasheet, IDT7007L20PF8 pinout, IDT7007L20PF8 application, or IDT7007L20PF8 equivalent, key selection criteria include BUSY/INT timing compatibility, M/S-selectable arbitration mode, dual-port power-down behavior, and TQFP-80 package thermal performance in -40°C to +85°C environments.
Technical Context
The IDT7007L20PF8 implements fully asynchronous dual-port architecture with separate address, data, and control buses per port (A0L–A14L/I/O0L–I/O7L/R/WL/CEL/OEL on left; A0R–A14R/I/O0R–I/O7R/R/WR/CER/OER on right), enabling simultaneous read/write to same location without contention. Its hardware semaphore logic uses A0–A2 addressing and I/O0–I/O7 data lines to manage eight shared flags between ports.
Arbitration is handled via push-pull BUSYL/BUSYR signals (not open-drain), with M/S pin selecting master (BUSY output) or slave (BUSY input) mode. Interrupt flags INTL/INTR are set/cleared by writes to fixed addresses 7FFEH (left) and 7FFFH (right), supporting mailbox-style interprocessor messaging without external logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 32K × 8 bits (256 Kbit total), two independent addressable arrays |
| Access Time (tAA) | 20 ns max - guarantees deterministic read latency for real-time control loops |
| Supply Voltage | 5.0 V ±10% - compatible with legacy TTL/CMOS 5 V systems without level shifters |
| Operating Temperature | -40°C to +85°C - qualified for industrial automation and motor drive applications |
| Standby Current (ISB1) | 60 mA max (both ports disabled) - enables low-power sleep modes in battery-backed controllers |
| Package | 80-pin TQFP (14 mm × 14 mm × 1.4 mm) - surface-mount compatible with automated PCB assembly |
| Bus Interface | TTL-compatible inputs/outputs - direct interfacing with microcontrollers and FPGAs without buffering |
Pinout & Package
Package: 80-pin thin quad flatpack (TQFP), body size 14 mm × 14 mm × 1.4 mm, lead pitch 0.5 mm, RoHS-compliant green variant available.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A14L | Left port address inputs | 15-bit address bus for 32K locations; must be stable before CE/R/W assertion |
| I/O0L–I/O7L | Left port bidirectional data | 8-bit parallel data path; high-impedance when OEL=H or CEL=H |
| CEL, R/WL, OEL | Left port controls | Chip enable (active low), read/write direction, output enable - fully asynchronous |
| A0R–A14R | Right port address inputs | Independent 15-bit address space; no timing dependency on left port |
| I/O0R–I/O7R | Right port bidirectional data | Electrically isolated from left I/O; supports concurrent read/write operations |
| CER, R/WR, OER | Right port controls | Functionally identical to left controls but with separate timing domains |
| SEML, SEMR | Semaphore enable | Active-low enables semaphore flag access (A0–A2 address 8 flags); CE=H required |
| INTL, INTR | Interrupt flags | Open-collector outputs (per datasheet note: non-tri-stated push-pull) signaling mailbox events |
| BUSYL, BUSYR | Arbitration status | Push-pull BUSY signals - output in master mode (M/S=H), input in slave mode (M/S=L) |
| M/S | Master/Slave select | Configures arbitration role: H = BUSY output (master), L = BUSY input (slave) for cascaded systems |
| VCC, GND | Power supply | Multiple VCC/GND pins distributed across package for low-noise, low-impedance decoupling |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port memory cells | Enables simultaneous reads/writes to identical addresses without data corruption or wait states |
| Hardware semaphore logic | Eight dedicated flags accessible via A0–A2 and I/O0–I/O7 eliminate need for external arbitration ICs |
| On-chip interrupt mailbox | Fixed addresses 7FFEH/7FFFH provide zero-software-overhead interprocessor signaling |
| Automatic power-down | CE-driven standby reduces active current to ≤60 mA (ISB1), cutting system-level power in idle cycles |
| Master/slave cascade support | M/S pin configures BUSY direction, enabling seamless expansion to 16-bit+ data buses without glue logic |
Applications
| Industrial PLC Communication | Real-Time Motion Controller |
|---|---|
Use Scenario: Two independent CPUs (e.g., ARM host + DSP motion engine) share status, command, and feedback data in synchronized control cycles. IC Role / Device Role / Timing Role: Dual-port SRAM acts as shared memory buffer with hardware arbitration preventing race conditions during concurrent access. Use Value: Eliminates software semaphores and polling delays; 20 ns access ensures sub-microsecond inter-CPU handshaking for 10 kHz servo loop updates. |
Use Scenario: FPGA-based motion sequencer writes trajectory points while microcontroller reads position error and adjusts PID gains. IC Role / Device Role / Timing Role: IDT7007L20PF8 provides deterministic, low-latency memory access for time-critical motion profile buffering. Use Value: Hardware BUSY/INT signals guarantee atomic write-read sequences, preventing position jitter caused by memory contention. |
| Redundant Safety System | Avionics Data Logger |
Use Scenario: Primary and backup flight control processors maintain mirrored state tables and cross-check integrity via shared memory. IC Role / Device Role / Timing Role: Dual-port SRAM serves as fault-tolerant state register bank with semaphore-controlled update coordination. Use Value: On-chip semaphore logic enforces strict write-ordering; M/S configuration allows primary to act as master, backup as slave for failover-safe updates. |
Use Scenario: Embedded logger captures sensor telemetry at 1 MHz while host processor offloads stored data over Ethernet. IC Role / Device Role / Timing Role: IDT7007L20PF8 buffers high-rate ADC streams on one port while host reads completed frames on the other. Use Value: 20 ns access and full asynchrony prevent FIFO overflow; TQFP-80 package meets DO-160E vibration and thermal cycling requirements. |
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, 80-pin TQFP, but requires external BUSY arbitration logic and lacks integrated semaphores | No native interrupt/mailbox support; needs additional CPLD/FPGA logic for interprocessor signaling | Select when existing design uses Cypress toolchain and external arbitration is already implemented |
| Renesas R1EX24064ASAS0I#U0 | 25 ns access, 64K × 8, 80-pin TQFP, supports 3.3 V operation but not 5 V; no M/S pin or hardware semaphore | Higher density but incompatible voltage and missing arbitration features; requires level-shifting and software semaphores | Choose only if migrating to 3.3 V systems and redesigning arbitration layer from scratch |
Compared with CY7C028V-20AC and R1EX24064ASAS0I#U0, the IDT7007L20PF8 delivers integrated hardware arbitration, 5 V compatibility, and mailbox interrupts in a drop-in TQFP-80 footprint-reducing BOM count, PCB area, and firmware complexity for industrial dual-CPU architectures.
Availability
IDT7007L20PF8 is available at Aetrix Electronics and suitable for industrial PLCs, real-time motion controllers, and redundant safety systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for IDT7007L20PF8 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 to strengthen embedded infrastructure offerings.
The IDT7007 family was designed specifically for deterministic interprocessor communication in hard real-time systems, emphasizing hardware arbitration, low-latency access, and industrial-grade reliability without external support components.
FAQ
What is the maximum operating temperature range for the IDT7007L20PF8?
The IDT7007L20PF8 is rated for industrial temperature operation from -40°C to +85°C, validated per manufacturer specifications and tested across the full range for parameter stability including access time, leakage current, and BUSY arbitration timing. This makes it suitable for deployment in factory-floor automation equipment and outdoor-rated control cabinets where ambient temperatures exceed commercial-grade limits.
Does the IDT7007L20PF8 support true simultaneous read operations on both ports?
Yes, the IDT7007L20PF8 supports true simultaneous reads from both left and right ports to the same or different memory locations without contention or timing penalties. Its dual-port SRAM cell architecture guarantees data integrity during concurrent access, and the 20 ns tAA specification applies independently to each port under full asynchronous operation.
How does the M/S pin affect BUSY signal behavior in the IDT7007L20PF8?
When M/S = H, the IDT7007L20PF8 operates as a master: BUSYL and BUSYR are push-pull outputs indicating arbitration status to external devices. When M/S = L, it operates as a slave: BUSYL and BUSYR become inputs that inhibit local writes when driven low by a master device, enabling hierarchical multi-device memory sharing without external logic.
Can the IDT7007L20PF8 be used in a 3.3 V system?
No, the IDT7007L20PF8 requires a 5.0 V ±10% supply (4.5 V to 5.5 V) and is not 3.3 V tolerant. Its inputs are TTL-compatible with VIH ≥ 2.2 V and VIL ≤ 0.8 V, but operation below 4.5 V violates absolute maximum ratings and invalidates timing specifications including the guaranteed 20 ns access time.
What package type is used for the IDT7007L20PF8?
The IDT7007L20PF8 uses an 80-pin thin quad flatpack (TQFP) package measuring 14 mm × 14 mm × 1.4 mm with 0.5 mm lead pitch. This RoHS-compliant green package supports reflow soldering, provides superior thermal dissipation over PLCC variants, and is optimized for high-density industrial PCB layouts requiring automated assembly.
7007L20PF8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 80-LQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 80-TQFP (14x14)
7007L20PF8 FAQ
1.How can I place an order for 7007L20PF8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7007L20PF8 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 7007L20PF8 reliable?
The price and inventory of 7007L20PF8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7007L20PF8 is usually 5 days.
3.What payment methods are accepted for 7007L20PF8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7007L20PF8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7007L20PF8?
7007L20PF8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7007L20PF8 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 7007L20PF8?
For technical support, including 7007L20PF8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7007L20PF8 requirements.
6.How does Aetrix verify that 7007L20PF8 is sourced from the original manufacturer or authorized distributors?
All 7007L20PF8 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 7007L20PF8 meets industry standards.
7.What is the process for return or replacement of 7007L20PF8?
All 7007L20PF8 units undergo pre-shipment inspection (PSI). If there is an issue with 7007L20PF8, 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 7007L20PF8 part is unused and in its original packaging.
Return procedure for 7007L20PF8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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