Renesas 7006L20FB

Overview

IDT7006L20FB from Integrated Device Technology (IDT) is a high-speed 16K × 8 dual-port static RAM with true independent left/right port access, 20 ns maximum read cycle time (tRC), 2V battery-backed data retention, and integrated semaphore/arbiter logic for inter-port synchronization. It operates on a single 5V ±10% supply, supports industrial temperature range (–40°C to +85°C), and is used in real-time embedded systems requiring concurrent memory access-such as dual-CPU arbitration, video frame buffering, and military avionics data exchange.

For engineers reviewing the 7006L20FB datasheet, 7006L20FB pinout, 7006L20FB application, or 7006L20FB equivalent, key selection criteria include its 20 ns access timing under industrial conditions, low 1 mW standby power, master/slave BUSY flag arbitration, full asynchronous dual-port operation, and compatibility with 64-pin TQFP packaging for space-constrained PCB layouts.

Technical Context

The 7006L20FB implements fully asynchronous dual-port architecture with separate address, control, and I/O buses per port, enabling simultaneous read/write operations-even to the same memory location-via on-chip arbitration logic. Its M/S pin configures master (BUSY output) or slave (BUSY input) mode for cascaded multi-device systems.

It integrates hardware semaphore signaling across eight flags (addressed by A0–A2), interrupt generation (INTL/INTR), and automatic power-down via CE-driven standby modes. The device uses CMOS process technology and supports TTL-compatible voltage levels with 2V data retention during battery backup operation.

Key Specifications

Pinout & Package

7006L20FB is packaged in a 64-pin thin quad flatpack (TQFP), designated PNG64, with 0.5 mm pitch, 14 mm × 14 mm body size, and 1.4 mm height. All VCC and GND pins must be properly decoupled per layout guidelines.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C024AV-20AXC and AS7C32098B-20TIN, the 7006L20FB uniquely delivers 5V operation, 2V data retention, and full hardware semaphore/BUSY arbitration in a single 64-pin TQFP package-making it irreplaceable for legacy 5V industrial and military dual-processor systems requiring guaranteed deterministic timing and zero-layout-change upgrades.

Availability

7006L20FB is available at Aetrix Electronics and suitable for real-time dual-CPU systems, video frame buffering, and military data link interfaces requiring stable component supply across extended product lifecycles.

Supply support for 7006L20FB 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

Integrated Device Technology (IDT) is a fabless semiconductor company specializing in timing, memory interface, RF, and sensor solutions for communications, computing, and industrial markets.

The IDT7006 family was designed specifically for deterministic, low-latency dual-processor and real-time embedded applications where concurrent memory access, hardware arbitration, and battery-backed reliability are mandatory.

FAQ

What is the maximum operating temperature range for the 7006L20FB?

The 7006L20FB is rated for industrial temperature operation from –40°C to +85°C. This specification is confirmed in the "Maximum Operating Temperature and Supply Voltage" table and applies to all speed grades marked "Com'l, Ind & Military" including the 20 ns variant. It does not support commercial-only (0°C to +70°C) or military-only (–55°C to +125°C) ranges.

Does the 7006L20FB support battery backup with data retention below 5V?

Yes, the 7006L20FB supports data retention at 2V minimum supply voltage, as specified in the "Data Retention Characteristics" section. This feature is exclusive to the "L" (low-power) version and enables reliable memory hold during main power interruption-critical for black-box logging and fail-safe systems.

How does the M/S pin affect BUSY signal behavior on the 7006L20FB?

When M/S = HIGH, the 7006L20FB operates as master: BUSYL and BUSYR become push-pull outputs that assert during port contention. When M/S = LOW, it operates as slave: BUSYL and BUSYR become inputs, allowing external master devices to drive BUSY signals for hierarchical arbitration in multi-device configurations.

Can the 7006L20FB perform simultaneous read operations on both ports to the same memory address?

Yes, the 7006L20FB's true dual-port architecture permits simultaneous reads to identical addresses on left and right ports without conflict or timing penalty. This is explicitly stated in the "Features" section and enabled by independent address decoders and memory cell design-no arbitration delay is incurred for concurrent reads.

What package type is used for the 7006L20FB, and are there alternate packages available?

The 7006L20FB uses a 64-pin thin quad flatpack (TQFP), designated PNG64, with 14 mm × 14 mm body and 0.5 mm lead pitch. While the IDT7006 family also offers 68-pin PGA, PLCC, and quad flatpack variants, the "FB" suffix in 7006L20FB specifically denotes the TQFP package per IDT's ordering nomenclature.