Renesas 70V06L20PFI8

Overview

70V06L20PFI8 from IDT (now Renesas) is a high-speed 3.3V 16K × 8 dual-port static RAM with true independent left/right ports, 20 ns max access time (industrial grade), TTL-compatible I/O, and on-chip semaphore/interrupt arbitration logic. It enables real-time inter-processor communication in embedded control systems requiring deterministic memory access without external logic.

For engineers reviewing the 70V06L20PFI8 datasheet, 70V06L20PFI8 pinout, 70V06L20PFI8 application, or 70V06L20PFI8 equivalent, key selection criteria include industrial temperature support (−40°C to +85°C), 68-pin PLCC package compatibility, BUSY/INT/SEM hardware arbitration timing, and dual-port power-down current of 660 µW (typ.) in full standby mode.

Technical Context

The 70V06L20PFI8 implements fully asynchronous dual-port operation with separate address, data, and control buses per port (A0L–A13L/I/O0L–I/O7L/R/WL/CEL/OEL/BUSYL/INTL/SEML on left; mirrored on right). Its on-chip arbitration logic resolves contention via BUSY flag assertion (tBAA ≤ 20 ns) when both ports access the same address simultaneously.

It supports MASTER/SLAVE cascading via M/S pin: when M/S = VIH, BUSY is output (master); when M/S = VIL, BUSY is input (slave). Semaphore signaling uses A0–A2 to select one of eight flags, with tSOP = 10 ns and tSAA ≤ 20 ns for flag update and access.

Key Specifications

Pinout & Package

68-pin Plastic Leaded Chip Carrier (PLCC) package with 0.95″ × 0.95″ body and 0.17″ height. All VDD pins require connection to 3.3V supply; all VSS pins must be grounded.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C024AV-20AXC and IDT70V25L20PF, the 70V06L20PFI8 uniquely combines industrial-grade 68-pin PLCC packaging, integrated semaphore/BUSY logic, and ultra-low 0.2 µA standby current - making it optimal for ruggedized, low-power, logic-minimized dual-processor systems.

Availability

70V06L20PFI8 is available at Aetrix Electronics and suitable for industrial PLCs, real-time motor controllers, medical imaging pipelines, and avionics sensor fusion modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 70V06L20PFI8 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 management, and memory solutions for industrial, automotive, and communications markets.

The IDT70V06 family was designed specifically for deterministic inter-processor communication in real-time embedded systems - delivering hardware-arbitrated dual-port memory without external logic or software overhead.

FAQ

What is the maximum operating temperature range supported by the 70V06L20PFI8?

The 70V06L20PFI8 is rated for industrial temperature operation from −40°C to +85°C. This specification is confirmed in the DC Operating Conditions table (Table 5) and applies to all AC timing parameters including tAA ≤ 20 ns, tRC ≤ 20 ns, and BUSY arbitration timing. The device uses CMOS high-performance fabrication to maintain stability across this full range.

Does the 70V06L20PFI8 support true simultaneous read operations on both ports to the same memory location?

Yes, the 70V06L20PFI8 supports true simultaneous reads to the same memory location on both ports without contention or BUSY assertion. This capability is explicitly stated in the Features section ("True Dual-Ported memory cells which allow simultaneous reads of the same memory location") and is fundamental to its architecture - BUSY only activates during simultaneous read/write or write/write conflicts.

How does the M/S pin affect BUSY signal behavior on the 70V06L20PFI8?

When M/S = VIH, the 70V06L20PFI8 operates as a master: BUSYL and BUSYR are push-pull outputs that assert LOW during address contention. When M/S = VIL, it operates as a slave: BUSYL and BUSYR become inputs that must be driven LOW by an external master to inhibit writes - per Note 1 in the Functional Block Diagram and Pin Names table.

What is the minimum standby current consumption of the 70V06L20PFI8 in full power-down mode?

The 70V06L20PFI8 achieves 0.2 µA typical full standby current (ISB3) when both ports are disabled with CMOS-level inputs (CEL/CER > VDD − 0.2 V, SEML/SEMR > VDD − 0.2 V, VIN > VDD − 0.2 V or < 0.2 V). This value is specified in Table 9a under ISB3 for the "L" speed grade at industrial temperature and is measured at f = 0.

Can the 70V06L20PFI8 be used in battery-backed applications, and what is its data retention voltage threshold?

Yes, the 70V06L20PFI8 supports battery backup operation with 2 V minimum data retention voltage. This is explicitly listed in the Features section ("Battery backup operation-2V data retention") and verified in the Absolute Maximum Ratings table where VTERM minimum is −0.5 V and operational VDD minimum is 3.0 V - confirming robust low-voltage holdover capability.