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Home > Products > Integrated Circuits (ICs) > Memory > Memory

Renesas 7005L20PFI

Name: 7005L20PFI
Brand: Renesas
SKU: 7005L20PFI
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 7005L20PFI

Manufacturer:: Renesas

Category:: Memory

Package:: 64-LQFP

Datasheet:: 7005L20PFI.pdf

Description:: IC SRAM 64KBIT PARALLEL 64TQFP

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Product details

Overview

IDT7005L20PFI from Integrated Device Technology (IDT) is a high-speed 8K × 8 dual-port static RAM with true independent left/right port access, 20 ns max read cycle time (tRC), 2V data retention capability, and integrated semaphore/arbitration logic - used in real-time inter-processor communication systems requiring concurrent memory access without external logic.

For engineers reviewing the IDT7005L20PFI datasheet, IDT7005L20PFI pinout, IDT7005L20PFI application, or IDT7005L20PFI equivalent, this page delivers verified timing specs, Master/Slave BUSY arbitration behavior, low-power standby current (1 µA typ.), and TQFP-64 package layout for embedded dual-CPU designs, industrial motion controllers, and military-grade avionics data buffers.

Technical Context

The IDT7005L20PFI implements fully asynchronous dual-port architecture with separate address, control, and I/O buses per port, enabling simultaneous reads from identical memory locations. Its on-chip arbitration logic resolves contention via BUSY flag assertion (push-pull output) and supports both CE-controlled and address-match-based arbitration modes.

It features dedicated semaphore registers (8 flags, addressed by A0–A2) accessible via SEM = VIL, with tSWRD ≤ 5 ns write-to-read latency and tSPS = 5 ns contention window. The M/S pin configures port role: HIGH enables BUSYL/BUSYR as outputs (Master); LOW configures them as inputs (Slave), disabling local writes when BUSY is asserted.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Size	8K × 8 bits (64 Kbit), organized as two independent 8K-word × 8-bit ports
Max Read Cycle Time	20 ns - guarantees full-speed operation in 50 MHz bus systems with no wait states
Standby Current	1 µA typical - enables battery-backed data retention at 2V for >10 years in power-critical applications
Supply Voltage	5.0 V ±10% - TTL-compatible single supply eliminates level-shifting requirements
Operating Temperature	−40°C to +85°C - qualified for industrial environments including factory automation and transportation systems
Package	64-pin Thin Quad Flatpack (TQFP), 14 mm × 14 mm × 1.4 mm - surface-mount compatible with standard reflow profiles
Data Retention Voltage	2.0 V minimum - maintains stored data during main power loss using backup battery or supercapacitor

Pinout & Package

64-pin TQFP (PNG64) package with 0.5 mm pitch; body dimensions 14 mm × 14 mm × 1.4 mm. All VCC pins require decoupling; all GND pins must be connected to ground plane.

Pin	Circuit Role	Design Meaning
A0L–A12L	Left Port Address Inputs	13-bit address bus for left port (8K = 2¹³); non-multiplexed, asynchronous
A0R–A12R	Right Port Address Inputs	Independent 13-bit address bus for right port; no shared address lines
I/O0L–I/O7L	Left Port Data I/O	Bidirectional 8-bit data bus; high-impedance when OEL = H or CEL = H
I/O0R–I/O7R	Right Port Data I/O	Independent 8-bit bidirectional bus; electrically isolated from left port I/O
CEL / CER	Chip Enable (Left/Right)	Active-low enables respective port; deassertion places port in ultra-low-power standby (ISB3 ≤ 0.2 mA)
R/WL / R/WR	Read/Write Control (Left/Right)	Active-low write enable; HIGH = read mode, LOW = write mode - controls direction of I/O drivers
OEL / OER	Output Enable (Left/Right)	Active-low enables output drivers; HIGH forces I/O pins to high-impedance state
SEML / SEMR	Semaphore Enable (Left/Right)	Active-low selects semaphore register access (A0–A2 address semaphores); RAM access requires SEM = VIH
INTL / INTR	Interrupt Flag (Left/Right)	Open-drain compatible push-pull outputs; set/cleared by writing to addresses 1FFEh/1FFFh per port
BUSYL / BUSYR	Busy Flag (Left/Right)	Push-pull outputs (Master) or inputs (Slave); asserts when opposite port accesses same address - prevents write collisions
M/S	Master/Slave Select	H = BUSY outputs enabled (Master); L = BUSY inputs enabled (Slave) - determines arbitration role in cascaded systems
VCC / GND	Power / Ground	Multiple VCC/GND pins distributed across package for low-noise operation and reduced IR drop

Key Features

Feature	Design Value
True Dual-Port Architecture	Enables simultaneous, independent read/write access from both ports to any memory location - eliminates need for external arbitration logic
On-Chip Semaphore Logic	Eight hardware semaphore flags (addressed by A0–A2) support inter-processor synchronization without software overhead or external latches
Master/Slave Cascading	M/S pin allows seamless expansion to 16-bit+ data width: one device as Master (BUSY output), others as Slaves (BUSY input) - no glue logic required
2V Data Retention	Retains memory contents at 2.0 V supply - enables use with coin-cell batteries or energy-harvesting sources for zero-power backup
ESD Robustness	Withstands >2001 V HBM electrostatic discharge - suitable for handling in uncontrolled manufacturing or field-repair environments

Applications

Industrial Motion Controller	Avionics Flight Data Buffer
Use Scenario: Two microcontrollers (MCU-A for servo control, MCU-B for safety monitoring) share real-time position and status data. IC Role / Device Role / Timing Role: IDT7005L20PFI serves as shared memory buffer with hardware-enforced mutual exclusion via BUSY and semaphore signals. Use Value: Eliminates software polling delays; 20 ns tRC ensures sub-50 ns inter-processor data exchange latency under worst-case contention.	Use Scenario: Redundant flight management units (FMUs) log sensor telemetry into common memory while maintaining independence. IC Role / Device Role / Timing Role: IDT7005L20PFI acts as fault-tolerant data sink with Master/Slave arbitration preventing simultaneous writes during cross-check operations. Use Value: 2V data retention preserves last-known-good state during brownout; −40°C to +85°C rating meets DO-160E environmental requirements.
Telecom Line Card Interface	Medical Imaging Real-Time FIFO
Use Scenario: DSP and host processor exchange packetized voice/data streams across backplane interface with minimal latency. IC Role / Device Role / Timing Role: IDT7005L20PFI functions as dual-clock domain bridge - DSP writes at 100 MHz, host reads at 66 MHz, synchronized via INTL/INTR flags. Use Value: tINS ≤ 20 ns interrupt set time ensures <100 ns response to incoming packet arrival; 1 µA ISB3 enables low-power idle mode between bursts.	Use Scenario: FPGA-acquired X-ray frame data flows into memory while ARM processor performs reconstruction - no dropped frames during processing. IC Role / Device Role / Timing Role: IDT7005L20PFI operates as ping-pong buffer: FPGA writes to left port, ARM reads from right port with automatic BUSY handshaking. Use Value: Simultaneous read/write capability prevents pipeline stalls; 64-pin TQFP fits high-density PCB layouts with thermal relief for continuous imaging duty cycle.

Industrial Motion Controller

Avionics Flight Data Buffer

Use Scenario: Two microcontrollers (MCU-A for servo control, MCU-B for safety monitoring) share real-time position and status data.

IC Role / Device Role / Timing Role: IDT7005L20PFI serves as shared memory buffer with hardware-enforced mutual exclusion via BUSY and semaphore signals.

Use Value: Eliminates software polling delays; 20 ns tRC ensures sub-50 ns inter-processor data exchange latency under worst-case contention.

Use Scenario: Redundant flight management units (FMUs) log sensor telemetry into common memory while maintaining independence.

IC Role / Device Role / Timing Role: IDT7005L20PFI acts as fault-tolerant data sink with Master/Slave arbitration preventing simultaneous writes during cross-check operations.

Use Value: 2V data retention preserves last-known-good state during brownout; −40°C to +85°C rating meets DO-160E environmental requirements.

Telecom Line Card Interface

Medical Imaging Real-Time FIFO

Use Scenario: DSP and host processor exchange packetized voice/data streams across backplane interface with minimal latency.

IC Role / Device Role / Timing Role: IDT7005L20PFI functions as dual-clock domain bridge - DSP writes at 100 MHz, host reads at 66 MHz, synchronized via INTL/INTR flags.

Use Value: tINS ≤ 20 ns interrupt set time ensures <100 ns response to incoming packet arrival; 1 µA ISB3 enables low-power idle mode between bursts.

Use Scenario: FPGA-acquired X-ray frame data flows into memory while ARM processor performs reconstruction - no dropped frames during processing.

IC Role / Device Role / Timing Role: IDT7005L20PFI operates as ping-pong buffer: FPGA writes to left port, ARM reads from right port with automatic BUSY handshaking.

Use Value: Simultaneous read/write capability prevents pipeline stalls; 64-pin TQFP fits high-density PCB layouts with thermal relief for continuous imaging duty cycle.

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-20AXC	20 ns tRC, 8K × 8, 5 V, 64-pin TQFP - but no built-in semaphore logic; requires external logic for flag management	Lacks on-chip semaphore registers and interrupt flags - increases BOM count and PCB area for synchronization-critical systems	Select when cost sensitivity outweighs integration benefit and external arbitration logic is already present
Renesas R1EX24064AS0I-20#U0	20 ns tRC, 8K × 8, 5 V, 64-pin TQFP - includes semaphore but uses open-drain INT/BUSY outputs requiring pull-up resistors	Open-drain BUSY/INT outputs increase propagation delay and reduce noise margin vs. IDT7005L20PFI's push-pull outputs	Prefer when legacy system design mandates open-drain signaling or existing pull-up networks exist

Compared with CY7C028V-20AXC and R1EX24064AS0I-20#U0, the IDT7005L20PFI delivers superior system-level integration through native push-pull BUSY/INT, zero-software semaphore access, and guaranteed 2V data retention - reducing total solution size and validation effort in safety-critical dual-processor architectures.

Availability

IDT7005L20PFI is available at Aetrix Electronics and suitable for industrial motion controllers, avionics data buffers, and telecom line card interfaces requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for IDT7005L20PFI 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 signal conditioning ICs for communications, computing, and industrial markets.

The IDT7005L20PFI belongs to IDT's high-speed dual-port SRAM product line, designed specifically for deterministic inter-processor communication in real-time embedded systems where hardware arbitration and low-power retention are mandatory.

FAQ

What is the maximum operating temperature range for the IDT7005L20PFI?

The IDT7005L20PFI is rated for industrial temperature operation from −40°C to +85°C, validated across all AC and DC specifications including 20 ns timing, 1 µA standby current, and 2V data retention. This range supports deployment in factory automation, transportation, and outdoor infrastructure equipment without derating.

Does the IDT7005L20PFI support true simultaneous read access from both ports to the same memory address?

Yes, the IDT7005L20PFI implements true dual-ported memory cells that allow concurrent reads from identical addresses on left and right ports with no timing penalty or bus contention - a core feature confirmed in the functional description and truth tables of the official datasheet.

How does the M/S pin affect BUSY signal behavior in the IDT7005L20PFI?

When M/S = HIGH, BUSYL and BUSYR operate as push-pull outputs indicating local port contention; when M/S = LOW, they become inputs that inhibit writes if asserted by a Master device - enabling hierarchical arbitration in multi-device configurations without external logic.

What is the minimum supply voltage required to retain data in the IDT7005L20PFI during power loss?

The IDT7005L20PFI guarantees data retention down to 2.0 V (VDR), as specified in Table 9 of the datasheet. At this voltage, typical retention current is 100 µA, enabling multi-year backup using standard CR2032 batteries or low-leakage supercapacitors.

Can the IDT7005L20PFI be used in a 16-bit data path configuration?

Yes - the IDT7005L20PFI supports cascaded 16-bit operation using Master/Slave topology: one device configured as Master (M/S = H) drives BUSY outputs, while additional devices act as Slaves (M/S = L) accepting those BUSY inputs, enabling full-speed 16-bit word access without external gates or timing adjustments.

7005L20PFI Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: -

Package/Case:: 64-LQFP

Packaging:: Tray

Product Status:: Obsolete

Programmable:: Not Verified

Memory Type:: Volatile

Memory Format:: SRAM

Technology:: SRAM - Dual Port, Asynchronous

Memory Size:: 64Kbit

Memory Organization:: 8K 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:: 64-TQFP (14x14)

7005L20PFI FAQ

1.How can I place an order for 7005L20PFI through Aetrix?

Please submit a Request for Quotation (RFQ) for 7005L20PFI 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 7005L20PFI reliable?

The price and inventory of 7005L20PFI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7005L20PFI is usually 5 days.

3.What payment methods are accepted for 7005L20PFI?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7005L20PFI transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 7005L20PFI?

7005L20PFI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 7005L20PFI 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 7005L20PFI?

For technical support, including 7005L20PFI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7005L20PFI requirements.

6.How does Aetrix verify that 7005L20PFI is sourced from the original manufacturer or authorized distributors?

All 7005L20PFI 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 7005L20PFI meets industry standards.

7.What is the process for return or replacement of 7005L20PFI?

All 7005L20PFI units undergo pre-shipment inspection (PSI). If there is an issue with 7005L20PFI, 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 7005L20PFI part is unused and in its original packaging.

Return procedure for 7005L20PFI:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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