My Inquiry
My Account
Renesas 7005S20PF
- Part No.:
- 7005S20PF
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7005S20PF.pdf
- Description:
- IC SRAM 64KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,275
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
7005S20PF from IDT is a high-speed 8K × 8 (64 Kbit) true dual-port static RAM with independent left/right ports, 20 ns maximum access time (commercial/industrial/military), TTL-compatible 5V ±10% supply, and on-chip semaphore/arbitration logic for inter-port synchronization - used in real-time embedded systems requiring concurrent memory access, such as digital signal processors interfacing with host controllers.
For engineers reviewing the 7005S20PF datasheet, 7005S20PF pinout, 7005S20PF application, or 7005S20PF equivalent, this page delivers verified electrical specs, dual-port timing behavior, BUSY/INT/SEM signal coordination, package-confirmed pin mapping, and validated alternatives for 16-bit memory expansion or master/slave configurations.
Technical Context
The 7005S20PF implements fully asynchronous dual-port operation: each port (left/right) has dedicated address (A0L–A12L / A0R–A12R), data (I/O0L–I/O7L / I/O0R–I/O7R), and control lines (CEL/CER, R/WL/R/WR, OEL/OER), enabling simultaneous reads to the same location without contention. Its on-chip arbitration logic resolves port conflicts via BUSY flag assertion and supports semaphore signaling using A0–A2 addressing of eight internal flags.
It features two operational modes: as a standalone 64 Kbit dual-port RAM or cascaded in MASTER/SLAVE configuration using the M/S pin - where M/S = H configures BUSYL/BUSYR as outputs (master), and M/S = L configures them as inputs (slave) to enable error-free 16-bit-or-wider memory expansion without external logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 8K × 8 bits (64 Kbit total), true dual-port architecture with independent read/write capability per port |
| Access Time (tAA) | 20 ns max - guarantees full-speed memory access for both ports under commercial/industrial/military temperature ranges |
| Supply Voltage | 5.0 V ±10% - single TTL-compatible rail; no separate I/O or core voltage required |
| Power Consumption | Active: 160 mA typ (ICC); Standby (ISB1): 20 mA typ - enables low-power operation with CE-controlled power-down |
| Operating Temperature | −40°C to +85°C (industrial grade) - validated for extended thermal stability in embedded control environments |
| Package | 64-pin thin quad flatpack (TQFP), 14 mm × 14 mm × 1.4 mm - surface-mount compatible with automated PCB assembly |
| Data Retention | 2 V minimum VCC - maintains stored data during brownout or backup battery operation |
Pinout & Package
7005S20PF is housed in a 64-pin thin quad flatpack (TQFP) with 0.5 mm pitch, compliant with JEDEC MO-159. All VCC pins require decoupling; all GND pins must be connected to system ground. Pin numbering follows standard TQFP top-view orientation (pin 1 at top-left corner).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A12L | Left-port address inputs | 13-bit address bus for left port; selects one of 8K locations independently of right port |
| A0R–A12R | Right-port address inputs | 13-bit address bus for right port; fully asynchronous with left port address transitions |
| I/O0L–I/O7L | Left-port bidirectional data | 8-bit data path for reads/writes; tri-stated when OEL = H or CEL = H |
| I/O0R–I/O7R | Right-port bidirectional data | 8-bit data path for reads/writes; tri-stated when OER = H or CER = H |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; controls power-down mode when deasserted |
| R/WL / R/WR | Read/write control (left/right) | Active-low write enable; when high and OEL/OER active, enables read output drive |
| OEL / OER | Output enable (left/right) | Active-low enables data bus drivers; overrides R/W state for read-only control |
| SEML / SEMR | Semaphore enable (left/right) | Active-low enables access to 8 semaphore flags via I/O0–I/O7 using A0–A2 |
| INTL / INTR | Interrupt flag (left/right) | Open-drain (push-pull) output indicating pending interrupt; cleared by writing to address 1FFE/1FFF |
| BUSYL / BUSYR | Busy flag (left/right) | Push-pull output (master) or input (slave); signals port contention during simultaneous access to same address |
| M/S | Master/Slave select | H = master (BUSY outputs); L = slave (BUSY inputs); enables cascaded 16-bit memory expansion |
| VCC / GND | Power supply | Multiple VCC/GND pins distributed across package for low-noise, stable power delivery |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port memory cells | Enables simultaneous reads from both ports to identical memory locations - eliminates arbitration delay in shared-buffer applications |
| On-chip semaphore logic | Eight hardware semaphore flags accessible via A0–A2 and I/O0–I/O7 - provides atomic resource locking without external logic or software overhead |
| Full port-to-port arbitration | BUSY flag generation resolves contention based on address match or CE timing - ensures deterministic write priority in real-time systems |
| Master/Slave cascade support | M/S pin configures device as master (BUSY outputs) or slave (BUSY inputs) - enables seamless 16-bit data bus expansion with no glue logic |
| Battery backup data retention | Operates down to 2 V VCC while retaining data - supports fail-safe operation during power interruption in industrial controllers |
Applications
| Digital Signal Processing Buffer | Real-Time Communication Controller |
|---|---|
Use Scenario: Dual-core DSP system where one core writes processed audio frames while the other reads for playback or transmission. IC Role / Device Role / Timing Role: Shared memory buffer with concurrent left/right port access; BUSY arbitration prevents overwrites during frame handoff. Use Value: Eliminates software-managed semaphores and reduces inter-core latency by enabling hardware-synchronized memory sharing at 20 ns access speed. |
Use Scenario: Industrial Ethernet controller managing packet buffering between MAC and application processor. IC Role / Device Role / Timing Role: Dual-port RAM acts as FIFO interface; left port handles DMA writes from PHY, right port serves CPU reads. Use Value: Prevents packet loss during burst traffic by decoupling write/read timing - supported by independent CE/R/W/OE controls per port. |
| Avionics Flight Management Unit | Medical Imaging Data Pipeline |
Use Scenario: Redundant flight control computer exchanging sensor fusion results and actuator commands across isolated processing channels. IC Role / Device Role / Timing Role: Master/slave configured 7005S20PF pair provides synchronized 16-bit shared memory with hardware arbitration. Use Value: Ensures deterministic inter-processor communication under −55°C to +125°C military-grade thermal stress without software arbitration overhead. |
Use Scenario: MRI subsystem transferring raw image data from ADC array to reconstruction engine with minimal latency. IC Role / Device Role / Timing Role: Left port receives parallel 8-bit samples from ADC; right port streams processed pixels to GPU via DMA. Use Value: Sustains >40 MB/s throughput using 20 ns access and full asynchronous operation - avoids pipeline stalls during high-resolution scan sequences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C024AV-20AXC | 20 ns access, 8K × 16 organization, 100-pin TQFP - wider data bus but larger footprint and no native M/S cascade logic | Best suited for systems requiring 16-bit native word width without cascading; lacks integrated semaphore arbitration | Select when 16-bit parallel interface is mandatory and external arbitration logic is acceptable |
| IDT70V25L20PF | 3.3 V supply, 8K × 8, 20 ns, LVDS-compatible - lower power (120 mA typ), but requires level-shifting for 5 V systems | Targeted at newer low-voltage designs; incompatible with legacy 5 V TTL buses without translation | Choose for power-sensitive 3.3 V platforms where voltage compatibility is confirmed |
Compared with CY7C024AV-20AXC and IDT70V25L20PF, the 7005S20PF uniquely combines 5 V TTL compatibility, hardware M/S cascade support, and integrated semaphore logic in a compact 64-pin TQFP - making it optimal for cost-sensitive, thermally demanding industrial upgrades requiring minimal board redesign.
Availability
7005S20PF is available at Aetrix Electronics and suitable for digital signal processing buffers, real-time communication controllers, avionics flight management units, and medical imaging data pipelines requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for 7005S20PF 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, now part of Renesas Electronics since 2019.
The 7005S20PF belongs to IDT's legacy high-speed dual-port SRAM product line, engineered for deterministic real-time systems where concurrent memory access, hardware arbitration, and industrial reliability are critical - including military, aerospace, and industrial control applications.
FAQ
What is the maximum operating temperature range certified for the 7005S20PF?
The 7005S20PF is rated for industrial temperature operation from −40°C to +85°C. This specification is explicitly validated in the datasheet for the 20 ns speed grade across commercial, industrial, and military variants - ensuring reliable performance in harsh embedded environments without derating.
Does the 7005S20PF support true simultaneous read operations from both ports to the same memory address?
Yes, the 7005S20PF implements true dual-port memory cells that allow simultaneous reads from both left and right ports to identical addresses without conflict or timing penalty. This capability is fundamental to its architecture and is confirmed in the Functional Block Diagram and Truth Table I of the official datasheet.
How does the M/S pin affect BUSY signal behavior in the 7005S20PF?
When M/S = H, the 7005S20PF operates as a master: BUSYL and BUSYR are push-pull outputs asserting contention status. When M/S = L, it operates as a slave: BUSYL and BUSYR become inputs that inhibit writes when driven low by a master - enabling hardware-coordinated cascading without external logic.
Can the 7005S20PF retain data during power interruption, and what is the minimum retention voltage?
Yes, the 7005S20PF supports battery backup data retention down to 2.0 V VCC, as specified in the Data Retention Characteristics table (Table 9). At this voltage, typical retention current is 100 µA, enabling reliable holdover during brownout or backup battery operation.
What package type is used for the 7005S20PF, and are all VCC/GND pins required to be connected?
The 7005S20PF uses a 64-pin thin quad flatpack (TQFP) per the Pin Configuration diagram (Drawing 2738 drw 03). All VCC and GND pins must be connected to their respective supply rails - the datasheet explicitly states "All VCC pins must be connected to power supply" and "All GND pins must be connected to ground supply" to ensure signal integrity and thermal stability.
7005S20PF 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-TQFP (14x14)
7005S20PF FAQ
1.How can I place an order for 7005S20PF through Aetrix?
Please submit a Request for Quotation (RFQ) for 7005S20PF 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 7005S20PF reliable?
The price and inventory of 7005S20PF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7005S20PF is usually 5 days.
3.What payment methods are accepted for 7005S20PF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7005S20PF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7005S20PF?
7005S20PF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7005S20PF 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 7005S20PF?
For technical support, including 7005S20PF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7005S20PF requirements.
6.How does Aetrix verify that 7005S20PF is sourced from the original manufacturer or authorized distributors?
All 7005S20PF 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 7005S20PF meets industry standards.
7.What is the process for return or replacement of 7005S20PF?
All 7005S20PF units undergo pre-shipment inspection (PSI). If there is an issue with 7005S20PF, 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 7005S20PF part is unused and in its original packaging.
Return procedure for 7005S20PF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7005S20PF Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
