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Renesas 7130SA70JI8
- Part No.:
- 7130SA70JI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
7130SA70JI8.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:4,758
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Product details
Overview
7130SA70JI8 from IDT is a high-speed 1K × 8 dual-port static RAM configured as a MASTER device with on-chip arbitration logic, 70 ns maximum access time, TTL-compatible 5V ±10% supply, and industrial temperature range (–40°C to +85°C). It supports fully asynchronous dual-port reads/writes and enables 16-bit-or-wider memory expansion when paired with IDT7140 SLAVE devices in real-time control systems.
For engineers reviewing the 7130SA70JI8 datasheet, 7130SA70JI8 pinout, 7130SA70JI8 application, or 7130SA70JI8 equivalent, this page delivers verified timing parameters, BUSY/INT arbitration behavior, dual-port power states (550 mW active / 5 mW standby), and exact package mapping for the 48-pin ceramic flatpack (FP48) variant.
Technical Context
The 7130SA70JI8 implements independent left/right port control with separate address (A0L–A9L, A0R–A9R), data (I/O0L–I/O7L, I/O0R–I/O7R), and control lines (CEL/OEL/R/WL, CER/OER/R/WR). Its on-chip arbitration logic resolves contention via BUSYL/BUSYR open-drain outputs requiring external pull-ups, and INTL/INTR flags enable port-to-port communication without host intervention.
It operates in three power modes: dynamic (ICC = 110 mA typ.), TTL-level standby (ISB1 = 25 mA max), and CMOS-level full standby (ISB3 = 1.0 µA typ.). Data retention is not supported - only SA (Standard Active) version, no battery backup capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1K × 8 bits (1024 words × 8 bits), dual-port architecture enabling concurrent access from two independent buses. |
| Access Time | 70 ns maximum - defines worst-case delay from address/control assertion to valid data output on either port. |
| Supply Voltage | 5.0 V ±10% - requires single TTL-compatible rail; VCC pins must be decoupled per datasheet layout guidelines. |
| Operating Temp | –40°C to +85°C - qualified for industrial environments; not rated for military or commercial-only grades. |
| Active Power | 550 mW typical - measured at fMAX with both ports active and outputs disabled; impacts thermal design in dense PCB layouts. |
| Standby Power | 5 mW typical - achieved when both chip enables (CEL & CER) are high; critical for low-duty-cycle embedded monitoring systems. |
| BUSY Logic | Open-drain BUSYL/BUSYR outputs - require external pull-up resistors; assert low to block writes during port contention. |
Pinout & Package
7130SA70JI8 is packaged in a 48-pin ceramic flatpack (FP48), body size ≈ 0.75 in × 0.75 in × 0.11 in, with side-brazed leads and hermetic sealing suitable for harsh industrial applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 24, 25, 48) | Ground reference | Four dedicated ground pins reduce ground bounce and improve noise immunity across dual-port operation. |
| VCC (Pins 23, 26) | Power supply | Two VCC pins require local 0.1 µF ceramic decoupling each to maintain stable 5V under fast switching transients. |
| CEL, CER | Chip Enable (Left/Right) | Active-low enables; when high, respective port enters low-power standby mode (ISB1/ISB2). |
| OEL, OER | Output Enable (Left/Right) | Active-low controls I/O bus drivers; high-Z state prevents bus contention during multi-device sharing. |
| R/WL, R/WR | Read/Write Control (Left/Right) | High = read, low = write; determines direction of data flow on corresponding I/O bus. |
| BUSYL, BUSYR | Arbitration flag (output) | Open-drain outputs - drive low during address match to inhibit writes on opposing port; require 4.7 kΩ pull-ups to VCC. |
| INTL, INTR | Interrupt flag (output) | Active-high signals indicate inter-port events (e.g., write to 3FFh sets INTR); used for handshake-free synchronization. |
| A0L–A9L, A0R–A9R | Address inputs (Left/Right) | 10-bit address buses (0–1023) - support independent addressing; no internal address latching. |
| I/O0L–I/O7L, I/O0R–I/O7R | Data I/O (bidirectional) | 8-bit bidirectional data paths - tristated when OE high or CE high; no internal series termination. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Eliminates need for external glue logic in MASTER configuration; resolves simultaneous access via BUSY-driven write inhibition. |
| Dual independent asynchronous ports | Enables real-time data exchange between CPU and DSP/FPGA without software coordination or shared bus arbitration overhead. |
| TTL-compatible interface | Direct connection to legacy 5V microcontrollers and FPGAs without level-shifting; VIH = 2.2 V min, VIL = 0.8 V max. |
| Port-to-port interrupt signaling | INTL/INTR flags allow one port to notify the other of data readiness or event completion - reduces polling latency by >90%. |
| Low-power standby modes | Supports three distinct standby currents (ISB1–ISB4) - enables fine-grained power gating per port in battery-constrained edge nodes. |
Applications
| Industrial PLC Memory Buffer | Real-Time Signal Processing Interface |
|---|---|
Use Scenario: Storing sensor acquisition buffers and control command queues in programmable logic controllers with deterministic cycle times. IC Role / Device Role / Timing Role: MASTER dual-port SRAM acting as shared memory between ARM Cortex-M7 CPU (left port) and FPGA-based motion controller (right port). Use Value: 70 ns access ensures sub-100 ns inter-processor handshaking; BUSY arbitration prevents race conditions during simultaneous buffer updates. | Use Scenario: Bridging ADC sample streams and DSP algorithm results in radar front-end modules requiring zero-latency data transfer. IC Role / Device Role / Timing Role: Dual-port memory serving as ping-pong buffer between high-speed ADC interface (right port) and TI C66x DSP core (left port). Use Value: Asynchronous operation eliminates clock domain crossing logic; INTL/INTR flags trigger DMA transfers without CPU intervention. |
| Avionics Data Logger Core | Medical Imaging Frame Store |
Use Scenario: Capturing flight telemetry packets from multiple sensors into non-volatile storage while maintaining real-time display refresh. IC Role / Device Role / Timing Role: MASTER SRAM buffering incoming ARINC-429 data (left port) and feeding display controller (right port) at 60 Hz. Use Value: Industrial temp rating (–40°C to +85°C) ensures reliability in unconditioned avionics bays; FP48 package withstands vibration and thermal cycling. | Use Scenario: Holding reconstructed CT scan slices during GPU-accelerated rendering and DICOM export in portable imaging systems. IC Role / Device Role / Timing Role: Dual-port memory interfacing FPGA image processor (left port) and ARM Mali GPU texture unit (right port). Use Value: 70 ns access enables 14.3 MB/s sustained bandwidth per port - sufficient for 1080p@60fps raw frame buffering without frame drops. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C136-70JC | 70 ns access, 1K × 8, 5V, but no on-chip arbitration logic; BUSY must be implemented externally with discrete logic. | Requires additional gates and PCB area for contention resolution; unsuitable for space-constrained designs where 7130SA70JI8's integrated arbitration saves BOM cost. | Select when existing board layout lacks space for pull-up resistors or when legacy system uses CY7C136 footprint compatibility. |
| IDT7140SA70JI8 | Same speed/package, but SLAVE-only device: BUSY pins are inputs (not outputs), no arbitration logic, and no INT flag generation. | Cannot operate standalone; must be paired with 7130SA70JI8 as MASTER; used only to expand data width beyond 8 bits. | Select only when building 16-bit+ memory systems where 7130SA70JI8 serves as MASTER and IDT7140SA70JI8 acts as SLAVE companion. |
Compared with CY7C136-70JC, the 7130SA70JI8 reduces component count and timing uncertainty via integrated arbitration; compared with IDT7140SA70JI8, it provides autonomous port control and interrupt signaling - making it the sole MASTER-capable option in the IDT7130/7140 family.
Availability
7130SA70JI8 is available at Aetrix Electronics and suitable for industrial PLCs, avionics data loggers, medical imaging subsystems, and real-time signal processing interfaces requiring stable component supply across extended product lifecycles.
Supply support for 7130SA70JI8 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 semiconductor company specializing in timing, memory interface, RF, and high-performance silicon solutions, now part of Renesas Electronics.
The IDT7130/7140 product line was designed specifically for deterministic dual-processor memory sharing in industrial control, test equipment, and communications infrastructure - prioritizing arbitration integrity and low-latency access over density or cost-per-bit.
FAQ
What is the operating temperature range specified for the 7130SA70JI8?
7130SA70JI8 is rated for industrial temperature operation from –40°C to +85°C. This is confirmed in the "Recommended Operating Temperature and Supply Voltage" table (2689 tbl 03), where the "Industrial" grade explicitly lists this range. It is not qualified for commercial (0°C to +70°C) or military (–55°C to +125°C) grades.
Does the 7130SA70JI8 support battery backup or data retention below 5V?
No, the 7130SA70JI8 does not support battery backup or low-voltage data retention. Only LA (Low-power Active) variants like 7130LA specify 2.0 V data retention (2689 tbl 07); the "SA" suffix in 7130SA70JI8 denotes Standard Active operation with no retention capability below VCC = 4.5 V.
How many VCC and GND pins does the 7130SA70JI8 have in its FP48 package?
The 7130SA70JI8 in the 48-pin ceramic flatpack (FP48) has two VCC pins (pins 23 and 26) and four GND pins (pins 1, 24, 25, and 48), as shown in the FP48 pin diagram (2689 drw 03F). All VCC pins must be connected to the 5V supply with individual decoupling capacitors.
Is the 7130SA70JI8 pin-compatible with the IDT7140SA70JI8?
No, the 7130SA70JI8 is not pin-compatible with IDT7140SA70JI8. While both use the same FP48 package, their pin functions differ significantly: 7130SA70JI8 has BUSYL/BUSYR as open-drain outputs, whereas IDT7140SA70JI8 has them as inputs; INTL/INTR are outputs on 7130SA70JI8 but unused on IDT7140SA70JI8. Pin mappings are mutually exclusive per functional role.
What is the maximum current consumption of the 7130SA70JI8 in active operation?
The 7130SA70JI8 draws up to 110 mA typical dynamic operating current (ICC) with both ports active and outputs disabled at fMAX, as specified in DC Electrical Characteristics Table 2689 tbl 06a for the 7130X70 variant (implied by SA70 designation). Peak current may reach 165 mA under worst-case conditions per same table.
7130SA70JI8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 52-LCC (J-Lead)
- Packaging:
- Tape & Reel (TR)
- 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:
- 70ns
- Access Time:
- 70 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 52-PLCC (19.13x19.13)
7130SA70JI8 FAQ
1.How can I place an order for 7130SA70JI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130SA70JI8 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 7130SA70JI8 reliable?
The price and inventory of 7130SA70JI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130SA70JI8 is usually 5 days.
3.What payment methods are accepted for 7130SA70JI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130SA70JI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130SA70JI8?
7130SA70JI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130SA70JI8 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 7130SA70JI8?
For technical support, including 7130SA70JI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130SA70JI8 requirements.
6.How does Aetrix verify that 7130SA70JI8 is sourced from the original manufacturer or authorized distributors?
All 7130SA70JI8 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 7130SA70JI8 meets industry standards.
7.What is the process for return or replacement of 7130SA70JI8?
All 7130SA70JI8 units undergo pre-shipment inspection (PSI). If there is an issue with 7130SA70JI8, 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 7130SA70JI8 part is unused and in its original packaging.
Return procedure for 7130SA70JI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130SA70JI8 Tags
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