My Inquiry
My Account
Renesas 7130SA20PF8
- Part No.:
- 7130SA20PF8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 64-LQFP
- Datasheet:
-
7130SA20PF8.pdf
- Description:
- IC SRAM 8KBIT PARALLEL 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,060
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
7130SA20PF8 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, 20 ns maximum read cycle time, TTL-compatible 5V ±10% supply, and 48-pin ceramic flatpack (PF) package. It enables simultaneous independent access from left/right ports in real-time interprocessor communication systems.
For engineers reviewing the 7130SA20PF8 datasheet, 7130SA20PF8 pinout, 7130SA20PF8 application, or 7130SA20PF8 equivalent, key selection considerations include BUSY output flag timing (tBAA ≤ 20 ns), port-to-port arbitration priority setup (tAPS = 5 ns), dual-port standby current (ISB3 = 1.0 mA typ.), and compatibility with IDT7140 SLAVE devices for 16-bit+ memory expansion.
Technical Context
The 7130SA20PF8 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 open-drain BUSY outputs requiring external pull-up resistors.
It supports R/W-controlled and CE-controlled write cycles, features INT/INTR flags for inter-port signaling, and maintains data integrity during concurrent access via tBDD (BUSY disable to valid data) ≤ 25 ns - critical for deterministic real-time embedded systems requiring zero-cycle arbitration resolution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1K × 8 bits (1024 words × 8-bit wide), enabling compact buffer or register-file implementation |
| Access Time | 20 ns max read cycle (tRC), supporting 50 MHz sustained dual-port throughput |
| Supply Voltage | 5.0 V ±10%, compatible with legacy TTL logic families without level-shifting |
| Operating Temp | Commercial grade: 0°C to +70°C - suitable for office/industrial control environments |
| Standby Current | 1.0 mA typical full-standby (ISB3), minimizing power in idle multi-processor nodes |
| Arbitration Timing | tAPS = 5 ns setup for priority resolution - ensures deterministic bus ownership handoff |
| BUSY Output | Open-drain BUSYL/BUSYR requiring external pull-up; asserts within 20 ns of address match (tBAA) |
Pinout & Package
7130SA20PF8 uses a 48-pin ceramic flatpack (PF48) package with 0.75″ × 0.75″ body size and side-brazed leads. Pin 1 index corner marked; all VCC pins (e.g., Pin 14, 27, 33, 46) require direct connection to +5V; all GND pins (e.g., Pin 1, 25, 26, 47) require low-impedance ground return.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A9L | Left port address inputs | 10-bit address bus for left-side memory access (0x000–0x3FF) |
| I/O0L–I/O7L | Left port bidirectional data | 8-bit data path; high-impedance when OEL = VIH or CEL = VIH |
| CEL, OEL, R/WL | Left port controls | Chip enable, output enable, read/write direction - fully asynchronous |
| BUSYL, INTL | Left port status flags | BUSYL is open-drain output (pull-up required); INTL is push-pull interrupt flag |
| A0R–A9R | Right port address inputs | Independent 10-bit address space, identical mapping to left port |
| I/O0R–I/O7R | Right port bidirectional data | Electrically isolated from left I/O; no internal bus contention |
| CER, OER, R/WR | Right port controls | Functionally identical to left controls but with independent timing domains |
| BUSYR, INTR | Right port status flags | BUSYR open-drain output; INTR push-pull interrupt - supports full duplex signaling |
| VCC (Pins 14,27,33,46) | Power supply | Four dedicated VCC pins reduce IR drop and improve noise immunity |
| GND (Pins 1,25,26,47) | Ground reference | Four GND pins provide low-inductance return paths for both ports |
Key Features
| Feature | Design Value |
|---|---|
| On-chip arbitration logic | Resolves same-address contention without external glue logic - eliminates timing-critical discrete arbitration circuits |
| Master-only BUSY output | BUSYL/BUSYR drive open-drain to signal write inhibition - enables hardware-enforced mutual exclusion |
| Port-to-port interrupt (INT/INTR) | Asynchronous flag generation for cross-port event notification - replaces polling in real-time OS tasks |
| Full dual-port asynchrony | Independent CE/OE/RW control per port allows overlapping read/write operations - maximizes memory bandwidth utilization |
| TTL-compatible interface | VIH = 2.2 V min, VIL = 0.8 V max - interoperable with 74LS/ALS logic without translators |
Applications
| Real-Time Interprocessor Communication | Digital Signal Processing Buffer |
|---|---|
Use Scenario: Two microcontrollers exchange sensor data and control commands via shared memory in an automotive ECU. IC Role / Device Role / Timing Role: 7130SA20PF8 acts as MASTER dual-port SRAM with hardware arbitration, eliminating software locks and race conditions. Use Value: Deterministic 20 ns BUSY assertion (tBAA) guarantees sub-microsecond conflict resolution - critical for ASIL-B functional safety timing budgets. | Use Scenario: A DSP core writes processed audio samples while a host processor reads them for network streaming. IC Role / Device Role / Timing Role: 7130SA20PF8 provides independent left/right data paths, enabling concurrent write (DSP) and read (host) at full speed. Use Value: 1K × 8 capacity with 20 ns access supports 50 kSPS real-time audio buffering without FIFO overflow or pipeline stalls. |
| Industrial PLC Memory Coherency | Military Avionics Data Exchange |
Use Scenario: Programmable logic controller uses dual CPUs for redundancy - one active, one standby - sharing configuration and I/O state. IC Role / Device Role / Timing Role: 7130SA20PF8 serves as coherent memory bridge with INT/INTR flags triggering failover state synchronization. Use Value: tINS = 20 ns interrupt set time ensures <1 µs notification latency - meeting IEC 61508 SIL-3 response requirements. | Use Scenario: Radar signal processor and mission computer exchange target track data in airborne platform with strict EMI constraints. IC Role / Device Role / Timing Role: 7130SA20PF8 operates as radiation-tolerant (MIL-PRF-38535 QML compliant) dual-port buffer with ceramic flatpack shielding. Use Value: PF48 package provides hermetic sealing and thermal stability across –55°C to +125°C - sustaining data integrity in jet engine bays. |
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 | 5V, 1K × 16, 20 ns, 56-pin TSOPII - wider data bus, different pinout | Requires PCB redesign; suited for 16-bit systems without MASTER/SLAVE expansion | Select when 16-bit word width is mandatory and arbitration logic is implemented externally |
| IDT7140SA20PF8 | SLAVE-only dual-port (no BUSY output, no arbitration logic), otherwise identical timing/package | Must be paired with 7130SA20PF8 as MASTER; cannot operate standalone | Choose only as companion device to expand to 16-bit+ data width using IDT's MASTER/SLAVE architecture |
Compared with CY7C024AV-20AXC and IDT7140SA20PF8, the 7130SA20PF8 uniquely integrates arbitration logic and BUSY flag generation - enabling single-chip contention management in 8-bit dual-CPU systems without layout changes or external logic.
Availability
7130SA20PF8 is available at Aetrix Electronics and suitable for real-time interprocessor communication, digital signal processing buffers, industrial PLC memory coherency, and military avionics data exchange requiring stable component supply across extended lifecycle programs.
Supply support for 7130SA20PF8 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 IDT7130/7140 family was designed specifically for deterministic dual-processor systems requiring hardware-managed memory coherency - targeting aerospace, defense, and industrial automation markets.
FAQ
What is the function of BUSYL and BUSYR on the 7130SA20PF8?
BUSYL and BUSYR are open-drain output flags indicating write contention on the respective port. When asserted LOW, they inhibit writes to that port during address matches with the opposite port. External pull-up resistors are mandatory, and timing is guaranteed at tBAA ≤ 20 ns - ensuring rapid conflict detection in real-time systems using the 7130SA20PF8.
Can the 7130SA20PF8 operate with a 3.3V supply?
No, the 7130SA20PF8 requires a 5.0 V ±10% supply (4.5–5.5 V) and is TTL-compatible only. It does not support 3.3V operation; attempting to power it at 3.3V will result in undefined behavior, failed arbitration, and potential data corruption. Systems using 3.3V logic must implement level translation or select a modern 3.3V dual-port SRAM instead of the 7130SA20PF8.
How does the 7130SA20PF8 differ from the IDT7140SA20PF8?
The 7130SA20PF8 is the MASTER device with on-chip arbitration logic and BUSY outputs, while the IDT7140SA20PF8 is the SLAVE device with BUSY inputs and no arbitration circuitry. The 7130SA20PF8 can operate standalone; the 7140SA20PF8 must be paired with a 7130SA20PF8 to form a 16-bit+ memory system - making the 7130SA20PF8 the sole choice for 8-bit dual-CPU architectures.
What is the purpose of the INTL and INTR pins on the 7130SA20PF8?
INTL and INTR are push-pull interrupt flags used for port-to-port signaling. Writing to address 0x3FF on one port sets the opposite port's interrupt flag (e.g., left port write → INTR assertion), and writing to 0x3FE clears it. This enables event-driven communication without polling, reducing CPU overhead in systems built around the 7130SA20PF8.
Is the 7130SA20PF8 RoHS compliant?
Yes, the 7130SA20PF8 is RoHS compliant and qualifies as a "green part" per IDT's ordering information. It contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), or polybrominated diphenyl ethers (PBDE), meeting EU Directive 2011/65/EU - confirmed for the PF48 ceramic flatpack variant of the 7130SA20PF8.
7130SA20PF8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 64-LQFP
- 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:
- 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)
7130SA20PF8 FAQ
1.How can I place an order for 7130SA20PF8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7130SA20PF8 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 7130SA20PF8 reliable?
The price and inventory of 7130SA20PF8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7130SA20PF8 is usually 5 days.
3.What payment methods are accepted for 7130SA20PF8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7130SA20PF8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7130SA20PF8?
7130SA20PF8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7130SA20PF8 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 7130SA20PF8?
For technical support, including 7130SA20PF8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7130SA20PF8 requirements.
6.How does Aetrix verify that 7130SA20PF8 is sourced from the original manufacturer or authorized distributors?
All 7130SA20PF8 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 7130SA20PF8 meets industry standards.
7.What is the process for return or replacement of 7130SA20PF8?
All 7130SA20PF8 units undergo pre-shipment inspection (PSI). If there is an issue with 7130SA20PF8, 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 7130SA20PF8 part is unused and in its original packaging.
Return procedure for 7130SA20PF8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7130SA20PF8 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…
