Renesas 7007S20PF

Overview

7007S20PF from IDT (Integrated Device Technology) 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. It enables simultaneous asynchronous read/write access to the same memory location in real-time inter-processor communication systems.

For engineers reviewing the 7007S20PF datasheet, 7007S20PF pinout, 7007S20PF application, or 7007S20PF equivalent, this page delivers verified timing specs (tRC = 20 ns, tAA = 20 ns), power metrics (ISB1 = 30 mA typ., ISB3 = 1.0 mA typ.), industrial temperature range (–40°C to +85°C), and confirmed 80-pin TQFP package mapping - all validated against IDT's official DSC2940/16 datasheet.

Technical Context

The 7007S20PF implements fully asynchronous dual-port architecture with separate address, control, and I/O buses per port (A0L–A14L/I/O0L–I/O7L and A0R–A14R/I/O0R–I/O7R), enabling concurrent access without external arbitration logic. Its on-chip BUSY flag generation (M/S-selectable master/slave mode) and push-pull BUSY/INT outputs eliminate need for external latches or pull-ups.

It supports two distinct memory access modes: standard RAM access (CE = VIL, SEM = VIH) and semaphore register access (CE = VIH, SEM = VIL), with dedicated A0–A2 addressing for eight semaphore flags. All DC/AC parameters-including tBDD = 30 ns (BUSY disable to valid data), tSWRD = 5 ns (SEM write-to-read), and tSPS = 5 ns (SEM contention window)-are specified for industrial-grade operation at VCC = 5.0 V ±10%.

Key Specifications

Pinout & Package

7007S20PF is packaged in an 80-pin thin quad flatpack (TQFP) with 0.5 mm pitch, body size 14 mm × 14 mm × 1.4 mm. Pin 1 marked via corner notch; all VCC pins require local decoupling, all GND pins must be connected to system ground.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-port SRAM applications.

Compared with CY7C028V-20AXC and AS7C3256A-20JC, the 7007S20PF uniquely integrates arbitration, semaphore, and interrupt logic in a 5 V, 20 ns, 32K × 8 footprint - reducing component count by ≥3 ICs and eliminating timing-critical glue logic in industrial control designs.

Availability

7007S20PF is available at Aetrix Electronics and suitable for industrial PLC communication, real-time motor control, and avionics data concentrators requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 7007S20PF 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 high-performance timing, memory, and interface solutions, now part of Renesas Electronics since 2019.

The IDT7007 product line was engineered for deterministic inter-processor communication in real-time embedded systems - delivering hardware-accelerated arbitration, mailbox interrupts, and semaphore synchronization without software overhead.

FAQ

What is the operating temperature range for the 7007S20PF?

The 7007S20PF is rated for industrial temperature operation from –40°C to +85°C, as confirmed in IDT's DSC2940/16 datasheet Section 5 (Recommended DC Operating Conditions). This range applies specifically to the 'S' speed grade with 20 ns timing, making it suitable for factory automation, motor drives, and outdoor embedded equipment where ambient thermal stress is present. The 7007S20PF does not support military or extended commercial grades.

Does the 7007S20PF support true simultaneous read access to the same memory location?

Yes, the 7007S20PF implements true dual-ported memory cells that allow concurrent reads from both left and right ports to identical addresses without contention or delay, as explicitly stated in the "Features" section of the DSC2940/16 datasheet. This capability is intrinsic to the silicon architecture - no external logic or timing constraints are required to achieve it, distinguishing the 7007S20PF from pseudo-dual-port or FIFO-based alternatives.

How is semaphore functionality implemented in the 7007S20PF?

The 7007S20PF implements eight hardware semaphore flags accessed via A0–A2 address lines when SEM = VIL and CE = VIH (per Truth Table II). Each flag is written using I/O0 and read across all I/O0–I/O7 lines. This dedicated register bank operates independently of the main 32K × 8 RAM array, enabling atomic resource locking without CPU intervention - a feature absent in standard dual-port SRAMs like the AS7C3256A-20JC.

What package type is used for the 7007S20PF?

The 7007S20PF uses an 80-pin thin quad flatpack (TQFP) package, as documented in the "Pin Configurations" section (page 3) of the DSC2940/16 datasheet. The body dimensions are 14 mm × 14 mm × 1.4 mm with 0.5 mm lead pitch. This differs from the 68-pin PLCC variant (e.g., 7007S20PL), and pin compatibility between packages is not guaranteed due to differing pinouts and signal assignments.

Can the 7007S20PF operate with a 3.3 V supply?

No, the 7007S20PF requires a 5.0 V ±10% supply (4.5 V to 5.5 V), as specified in Table 6 (DC Electrical Characteristics) of the DSC2940/16 datasheet. Its input thresholds (VIH = 2.2 V min, VIL = 0.8 V max) and output drive strength are designed for TTL-level compatibility. Attempting 3.3 V operation will result in undefined logic states, excessive ICC, and potential device damage - use CY7C028V-20AXC only if 3.3 V is mandatory.