My Inquiry
My Account
Renesas 7130SA55TFI
- Part No.:
- 7130SA55TFI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7130SA55TFI.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,661
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
7130SA55TFI from IDT is a high-speed 1K × 8 dual-port static RAM configured as a MASTER device with on-chip arbitration logic, 55 ns maximum read/write cycle time, TTL-compatible 5V ±10% supply, and industrial temperature range (–40°C to +85°C). It enables error-free 16-bit-or-wider memory expansion when paired with IDT7140 SLAVE devices in real-time embedded control systems.
For engineers reviewing the 7130SA55TFI datasheet, 7130SA55TFI pinout, 7130SA55TFI application, or 7130SA55TFI equivalent, this page delivers verified timing parameters, port arbitration behavior, BUSY/INT flag operation, and package-specific DC/AC electrical characteristics required for deterministic dual-ported memory integration in avionics data buffers, industrial PLC I/O modules, and telecom line card controllers.
Technical Context
The 7130SA55TFI implements fully asynchronous dual-port access with independent left/right address, control, and I/O buses - supporting simultaneous read/write operations across ports without external logic. Its on-chip arbitration logic resolves contention via BUSY output assertion (open-drain, requires pull-up) and priority set-up time (tAPS = 5 ns).
It features port-to-port interrupt signaling (INTL/INTR), battery-backed data retention capability (not applicable - LA variant only), and four standby current modes (ISB1–ISB4) controlled by CE-level and input voltage thresholds, enabling precise power management in mixed-signal systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 1K × 8 bits (1024 words × 8-bit wide), dual independent ports |
| Access Time (max) | 55 ns - defines minimum read/write cycle time for guaranteed data validity |
| Supply Voltage | 4.5 V to 5.5 V - supports standard TTL-compatible 5V rail with ±10% tolerance |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded applications |
| Standby Current (ISB1) | 20 mA max (both ports disabled, TTL-level inputs) - critical for low-power sleep states |
| Dynamic Current (ICC) | 110 mA typ (both ports active, f = fMAX) - determines thermal design and regulator sizing |
| BUSY Timing (tBAA) | 30 ns max - delay from address valid to BUSY assertion during port contention |
Pinout & Package
7130SA55TFI is packaged in a 64-pin STQFP (Small Thin Quad Flat Package), body size 10 mm × 10 mm × 1.4 mm, lead pitch 0.5 mm, RoHS-compliant and green-qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 33, 47) | Ground reference | Two dedicated ground pins reduce ground bounce and improve noise immunity |
| VCC (Pins 32, 46) | Power supply | Dual VCC pins ensure stable core voltage delivery under dynamic load |
| CEL / CER | Chip Enable (Left/Right) | Active-low enables respective port; controls ISB1–ISB4 standby modes |
| OEL / OER | Output Enable (Left/Right) | Active-low enables I/O drivers; high-Z when deasserted |
| R/WL / R/WR | Read/Write Control (Left/Right) | High = read, low = write; determines direction of data flow per port |
| BUSYL / BUSYR | Arbitration Flag Output (Left/Right) | Open-drain outputs indicating port contention; require external pull-up resistors |
| INTL / INTR | Interrupt Flag (Left/Right) | Active-high flags signal inter-port communication events (e.g., address match at 3FE/3FF) |
| A0L–A9L / A0R–A9R | Address Inputs (Left/Right) | 10-bit address buses (0–1023) - no A10 needed for 1K depth |
| I/O0L–I/O7L / I/O0R–I/O7R | Data I/O (Left/Right) | Bidirectional 8-bit data buses - shared between read and write operations per port |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Eliminates need for external glue logic in MASTER/SLAVE configurations, reducing BOM count and layout complexity |
| Open-drain BUSY outputs | Enables wired-OR arbitration across multiple MASTER devices sharing a common BUSY bus |
| Port-to-port interrupt signaling | Supports deterministic handshaking (e.g., INTL set at A=3FE, INTR reset at A=3FF) without polling overhead |
| Four-tier standby current control | Allows fine-grained power optimization: ISB1 (both CE high), ISB2 (one CE low), ISB3/ISB4 (CMOS-level inputs) |
| TTL-compatible interface | Direct connection to legacy 5V microcontrollers and FPGAs without level-shifting circuitry |
Applications
| Avionics Data Buffering | Industrial PLC I/O Module |
|---|---|
Use Scenario: Real-time acquisition and buffering of sensor telemetry (e.g., ADC samples, IMU data) while simultaneously servicing host CPU read requests. IC Role / Device Role / Timing Role: MASTER dual-port SRAM acts as a zero-latency, contention-managed FIFO between ADC controller (left port) and ARM Cortex-M7 host (right port). Use Value: 55 ns access ensures sub-microsecond data handoff; BUSY arbitration prevents corrupted writes during concurrent access. | Use Scenario: Isolating field I/O scan logic from HMI update cycles in modular programmable logic controllers. IC Role / Device Role / Timing Role: Dual-port RAM serves as shared memory between safety-critical I/O processor (left port) and non-safety HMI co-processor (right port). Use Value: INTL/INTR flags enable lock-free synchronization; industrial temp rating ensures reliability in cabinet-mounted control units. |
| Telecom Line Card Controller | Medical Imaging Frame Store |
Use Scenario: Storing packet header metadata and status flags in high-density line cards where SERDES and MAC processors share memory resources. IC Role / Device Role / Timing Role: MASTER 7130SA55TFI interfaces with FPGA-based packet parser (left port) and ARM-based management CPU (right port). Use Value: tAPS = 5 ns priority setup guarantees deterministic arbitration under 100 Mbps traffic bursts; STQFP package supports dense PCB layouts. | Use Scenario: Temporary storage of digitized X-ray or ultrasound frames before compression and transfer to host system memory. IC Role / Device Role / Timing Role: Dual-port SRAM provides simultaneous capture (left port from ADC pipeline) and display rendering (right port to GPU framebuffer interface). Use Value: Fully asynchronous operation eliminates clock domain crossing logic; 55 ns access sustains >18 MB/s sustained bandwidth per port. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C1354V25 | 3.3V core, 25 ns access, QDR architecture with separate read/write ports | Requires level translation for 5V systems; optimized for burst-mode networking ASICs, not general-purpose MASTER/SLAVE expansion | Select when migrating to 3.3V infrastructure and requiring higher bandwidth than 7130SA55TFI's 18 MB/s/port |
| IDT71422S25YG | Same 5V family, 2K × 16 organization, 25 ns speed, integrated mailbox registers | Higher density and built-in inter-processor messaging; lacks BUSY arbitration - relies on software handshake | Choose for new designs needing larger memory footprint and simplified firmware-level sync over hardware arbitration |
Compared with CY7C1354V25 and IDT71422S25YG, the 7130SA55TFI uniquely delivers industrial-temperature-rated, 5V-compatible, hardware-arbitrated dual-port operation in a cost-optimized 1K × 8 MASTER configuration - making it irreplaceable in legacy 5V real-time control systems requiring guaranteed contention resolution without software overhead.
Availability
7130SA55TFI is available at Aetrix Electronics and suitable for avionics data buffering, industrial PLC I/O modules, and telecom line card controllers requiring stable component supply, long-term lifecycle support, and traceable sourcing for certified production programs.
Supply support for 7130SA55TFI 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, RF, and sensor solutions, now part of Renesas Electronics since 2019.
The IDT7130/7140 product line was designed specifically for deterministic, low-latency dual-ported memory expansion in real-time embedded systems - emphasizing hardware arbitration, interrupt signaling, and industrial/military temperature reliability over raw density or speed.
FAQ
What is the maximum operating temperature range for the 7130SA55TFI?
The 7130SA55TFI is rated for industrial temperature operation from –40°C to +85°C, validated across all AC and DC specifications in this range. This makes it suitable for deployment in harsh environments such as factory automation controllers and outdoor telecom equipment cabinets where ambient temperatures exceed commercial-grade limits.
Does the 7130SA55TFI support battery backup data retention?
No, the 7130SA55TFI does not support battery backup data retention. That feature is exclusive to the LA variant (e.g., 7130LA55TFI), which specifies VDR = 2.0 V and ICCDR ≤ 4000 µA under data retention conditions. The 'SA' suffix denotes standard active power profile, not low-power retention capability.
How does BUSY arbitration work on the 7130SA55TFI during simultaneous access?
When both ports attempt access to the same memory location, the 7130SA55TFI asserts BUSYL or BUSYR (open-drain) within tBAA ≤ 30 ns to block the later-arriving port. The winning port is determined by tAPS = 5 ns priority setup time - if met, the earlier port proceeds; if violated, arbitration outcome is undefined. External pull-up resistors are mandatory for BUSY functionality.
Can the 7130SA55TFI be used as a standalone 8-bit dual-port RAM without a SLAVE device?
Yes, the 7130SA55TFI functions fully as a standalone 8-bit dual-port SRAM. Its MASTER designation refers to its capability to coordinate with IDT7140 SLAVE devices for wider data buses (e.g., 16-bit), but it operates independently with complete left/right port control, arbitration, and interrupt logic - no SLAVE is required for basic dual-port use.
What package type is used for the 7130SA55TFI, and are there pin-compatible alternatives?
The 7130SA55TFI uses a 64-pin STQFP package (10 mm × 10 mm, 0.5 mm pitch). While IDT offered the same speed grade in PLCC and TQFP variants, the STQFP (TFI suffix) is not pin-compatible with those due to different pinouts and power/ground allocations - direct substitution requires PCB redesign and validation of thermal and signal integrity margins.
7130SA55TFI 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-TQFP (10x10)
7130SA55TFI FAQ
1.How can I place an order for 7130SA55TFI through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130SA55TFI 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 7130SA55TFI reliable?
The price and inventory of 7130SA55TFI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130SA55TFI is usually 5 days.
3.What payment methods are accepted for 7130SA55TFI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130SA55TFI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130SA55TFI?
7130SA55TFI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130SA55TFI 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 7130SA55TFI?
For technical support, including 7130SA55TFI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130SA55TFI requirements.
6.How does Aetrix verify that 7130SA55TFI is sourced from the original manufacturer or authorized distributors?
All 7130SA55TFI 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 7130SA55TFI meets industry standards.
7.What is the process for return or replacement of 7130SA55TFI?
All 7130SA55TFI units undergo pre-shipment inspection (PSI). If there is an issue with 7130SA55TFI, 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 7130SA55TFI part is unused and in its original packaging.
Return procedure for 7130SA55TFI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130SA55TFI 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…
