My Inquiry
My Account
Renesas 7130SA55PF
- Part No.:
- 7130SA55PF
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7130SA55PF.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,931
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
7130SA55PF from IDT (Integrated Device Technology) is a high-speed 1K × 8 dual-port static RAM configured as a MASTER device with on-chip arbitration logic, 55 ns maximum access time, TTL-compatible 5V ±10% supply, and industrial temperature range (–40°C to +85°C). It enables simultaneous independent read/write access from left and right ports in real-time interprocessor communication systems.
For engineers reviewing the 7130SA55PF datasheet, 7130SA55PF pinout, 7130SA55PF application, or 7130SA55PF equivalent, key selection criteria include BUSY flag timing (tBAA ≤ 55 ns), port-to-port arbitration priority setup (tAPS = 5 ns), open-drain BUSY output requiring pullup, and compatibility with IDT7140SLAVE devices for 16-bit expansion.
Technical Context
The 7130SA55PF implements fully asynchronous dual-port operation with separate address, control, and I/O buses per port. Its on-chip arbitration logic resolves contention when both ports access the same memory location, asserting BUSYL/BUSYR outputs to stall the later-arriving write.
It supports R/W-controlled and CE-controlled write cycles, features INTL/INTR interrupt flags for interport signaling, and requires external pullup resistors on BUSY pins due to open-drain output structure. The device operates only from a single 5V supply and enters low-power standby when CE is deasserted.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1K × 8 bits (1024 words × 8 data lines) - provides compact dual-access buffer for embedded control handshaking. |
| Access Time | 55 ns max (industrial grade) - guarantees deterministic latency for real-time interprocessor data exchange. |
| Supply Voltage | 5.0 V ±10% - compatible with legacy TTL and 5V microcontroller buses without level translation. |
| Operating Temp | –40°C to +85°C - qualified for industrial automation, motor control, and avionics subsystems. |
| Active Current | 155 mA typ (both ports active) - defines power budget for continuous dual-port operation at full speed. |
| Standby Current | 65 mA typ (TTL-level CE high) - determines quiescent power in idle interprocessor wait states. |
| BUSY Timing | tBAA ≤ 55 ns - sets minimum response delay for arbitration resolution during address collision. |
Pinout & Package
7130SA55PF is supplied in a 48-pin ceramic flatpack (FP48) package measuring approximately 0.75 in × 0.75 in × 0.11 in, with through-hole mounting and hermetic sealing suitable for high-reliability applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24) | Ground reference | Both pins must be connected to system ground plane to ensure signal integrity and EMI control. |
| VCC (Pin 25) | Power supply | Single 5V ±10% supply input; decoupling capacitor required within 1 cm of pin. |
| CEL / CER | Chip enable (left/right) | Active-low enables respective port; deassertion places port in standby (ISB1/ISB2). |
| OEL / OER | Output enable (left/right) | Active-low controls I/O bus drivers; high-Z state prevents bus contention during idle. |
| R/WL / R/WR | Read/write direction (left/right) | High = read, low = write; determines data flow direction on associated I/O bus. |
| BUSYL / BUSYR | Arbitration status (open-drain) | Low indicates write contention on that port; requires external 4.7kΩ pullup to VCC. |
| INTL / INTR | Interrupt flag (open-drain) | Low indicates pending interport interrupt; requires external pullup for proper logic level. |
| A0L–A9L / A0R–A9R | Address inputs (left/right) | 10-bit address buses select one of 1024 memory locations independently per port. |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O (bidirectional) | 8-bit parallel data path per port; driven during writes, tri-stated or output during reads. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Resolves simultaneous access to same address without external logic, eliminating race conditions in dual-CPU systems. |
| Open-drain BUSY outputs | Enable wired-OR arbitration signaling across multiple dual-port RAMs in shared-memory topologies. |
| Port-to-port interrupt flags | INTL/INTR support hardware-triggered event notification between processors without polling overhead. |
| Asynchronous dual-port operation | Allows independent clock domains or unclocked microcontrollers to share memory without synchronization logic. |
| TTL-compatible interface | Direct connection to 5V MCUs, FPGAs, and ASICs without level-shifting circuitry. |
Applications
| Real-Time Interprocessor Communication | Digital Signal Processor (DSP) Co-Processing |
|---|---|
Use Scenario: Two microcontrollers exchange sensor fusion data and control commands via shared memory in an automotive ADAS domain controller. IC Role / Device Role / Timing Role: 7130SA55PF acts as MASTER dual-port RAM, providing deterministic 55 ns access and BUSY-flagged arbitration to prevent data corruption during concurrent access. Use Value: Eliminates software semaphores and reduces inter-CPU latency by enabling hardware-enforced atomic memory updates. | Use Scenario: A host MCU offloads FFT computation to a dedicated DSP, sharing input buffers and result arrays in real time. IC Role / Device Role / Timing Role: 7130SA55PF serves as low-latency shared memory with independent left/right ports mapped to MCU and DSP data buses. Use Value: Enables zero-copy data transfer between processing units, avoiding DMA bottlenecks and reducing total system power. |
| Industrial PLC Backplane Interface | Military Avionics Data Concentrator |
Use Scenario: Multiple I/O modules communicate with a central controller over a ruggedized backplane using shared memory for status and command exchange. IC Role / Device Role / Timing Role: 7130SA55PF functions as MASTER RAM with industrial temp rating and ceramic FP48 package for vibration resistance. Use Value: Provides reliable, EMI-immune inter-module communication without serial protocol overhead or timing skew. | Use Scenario: Flight control and navigation computers share telemetry and health-monitoring data in a MIL-PRF-38535-compliant avionics unit. IC Role / Device Role / Timing Role: 7130SA55PF operates as MASTER dual-port SRAM with military-grade reliability and open-drain BUSY for fail-safe arbitration. Use Value: Meets QML Class V requirements and ensures deterministic memory access under extreme thermal and radiation conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port RAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C024AV-55AXC | 55 ns access, 2K × 16 organization, 3.3V supply, TQFP-64 package | Higher density and lower voltage; requires level translation for 5V systems | Select when migrating to 3.3V architecture and needing wider data bus without external multiplexing |
| IDT7142SA55PF | 55 ns, 2K × 8, SLAVE-only device with no arbitration logic or BUSY output | Designed exclusively for expansion with MASTER 7130; cannot operate standalone | Use only as companion SLAVE to expand to 16-bit word width; not a functional substitute for 7130SA55PF |
Compared with CY7C024AV-55AXC and IDT7142SA55PF, the 7130SA55PF uniquely combines MASTER arbitration, 5V TTL compatibility, and ceramic FP48 packaging-making it irreplaceable in legacy industrial and military 5V dual-CPU designs requiring hermetic reliability and hardware-enforced memory coherency.
Availability
7130SA55PF is available at Aetrix Electronics and suitable for real-time interprocessor communication, industrial PLC backplanes, military avionics data concentrators, and digital signal processor co-processing applications requiring stable component supply across extended product lifecycles.
Supply support for 7130SA55PF 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 memory, timing, and interface solutions, now part of Renesas Electronics.
The IDT7130 family was designed specifically for deterministic, low-latency shared-memory architectures in dual-processor systems-emphasizing hardware arbitration, interrupt signaling, and robust 5V operation for industrial and defense applications.
FAQ
What is the maximum access time specification for the 7130SA55PF?
The 7130SA55PF has a maximum access time of 55 ns across the full industrial temperature range (–40°C to +85°C), measured as tAA (address access time), tACE (chip enable access time), and tAOE (output enable access time) under specified load and voltage conditions. This value is production-tested and guaranteed per the IDT datasheet revision Jul.12.21.
Does the 7130SA55PF require external pullup resistors on its BUSY pins?
Yes, the 7130SA55PF BUSYL and BUSYR pins are open-drain outputs and require external pullup resistors to VCC. The datasheet specifies a typical 4.7 kΩ resistor value to ensure valid HIGH logic levels during arbitration idle states. Failure to install pullups will prevent correct BUSY flag assertion and cause write contention failures.
Can the 7130SA55PF operate as a standalone dual-port RAM without a companion SLAVE device?
Yes, the 7130SA55PF is designed to operate as a standalone 8-bit dual-port RAM. Its MASTER functionality-including on-chip arbitration logic, BUSY outputs, and interrupt flags-is fully self-contained. The SLAVE IDT7140 is optional and used only when expanding to 16-bit or wider data paths in multi-RAM configurations.
What is the operating supply voltage range for the 7130SA55PF?
The 7130SA55PF operates from a single 5.0 V supply with a tolerance of ±10%, i.e., 4.5 V to 5.5 V. This TTL-compatible voltage range allows direct interfacing with legacy 5V microcontrollers, FPGAs, and peripheral ICs without level-shifting circuitry. Operation outside this range may cause functional failure or permanent damage.
How does the 7130SA55PF handle simultaneous access to the same memory address from both ports?
The 7130SA55PF uses on-chip arbitration logic to resolve simultaneous access: the port with earlier address and control setup (determined by tAPS = 5 ns) wins, while the later port asserts its BUSY output to stall the write. This hardware mechanism prevents data corruption without software intervention and is intrinsic to the 7130SA55PF's MASTER architecture.
7130SA55PF 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:
- 8Kbit
- Memory Organization:
- 1K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 55ns
- Access Time:
- 55 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)
7130SA55PF FAQ
1.How can I place an order for 7130SA55PF through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130SA55PF 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 7130SA55PF reliable?
The price and inventory of 7130SA55PF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130SA55PF is usually 5 days.
3.What payment methods are accepted for 7130SA55PF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130SA55PF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130SA55PF?
7130SA55PF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130SA55PF 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 7130SA55PF?
For technical support, including 7130SA55PF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130SA55PF requirements.
6.How does Aetrix verify that 7130SA55PF is sourced from the original manufacturer or authorized distributors?
All 7130SA55PF 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 7130SA55PF meets industry standards.
7.What is the process for return or replacement of 7130SA55PF?
All 7130SA55PF units undergo pre-shipment inspection (PSI). If there is an issue with 7130SA55PF, 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 7130SA55PF part is unused and in its original packaging.
Return procedure for 7130SA55PF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130SA55PF 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…
