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Renesas 7134SA55P
- Part No.:
- 7134SA55P
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-DIP (0.600", 15.24mm)
- Datasheet:
-
7134SA55P.pdf
- Description:
- IC SRAM 32KBIT PARALLEL 48DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,906
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Product details
Overview
IDT7134SA55P from Integrated Device Technology is a high-speed 4K × 8 dual-port static RAM with 55 ns maximum read cycle time, TTL-compatible 5 V ±10% operation, and independent asynchronous left/right port access. It features 700 mW typical active power, 5 mW standby power, and is packaged in a 48-pin plastic DIP (P48-1) for use in real-time interprocessor communication systems requiring zero-wait-state data exchange.
For engineers reviewing the IDT7134SA55P datasheet, IDT7134SA55P pinout, IDT7134SA55P application, or IDT7134SA55P equivalent, key selection criteria include dual-port arbitration-free timing, military-grade temperature support (–55°C to +125°C), CMOS-level full-standby current (1.0 mA), and compatibility with legacy 5 V bus architectures in avionics and test equipment.
Technical Context
The IDT7134SA55P implements fully asynchronous dual-port architecture with separate address, control, and bidirectional I/O pins per port-no on-chip arbitration logic required. Each port operates independently with dedicated CE, OE, R/W, and address lines, enabling concurrent read/write operations when accessing different memory locations.
It uses CMOS high-performance fabrication for low-power operation and supports TTL-level input thresholds (VIH = 2.2 V min, VIL = 0.8 V max) and output drive (VOH = 2.4 V min at –4 mA, VOL = 0.4 V max at 6 mA). Power-down is controlled per port via chip enable (CE), with full standby mode activated when both CE inputs exceed VCC – 0.2 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 4K × 8 bits (32 Kbit total); enables byte-wide parallel data transfer per port |
| Read Cycle Time (tRC) | 55 ns max; defines minimum interval between successive reads on same port |
| Access Time (tAA) | 55 ns max; determines latency from address valid to stable output data |
| Supply Voltage | 5.0 V ±10%; ensures interoperability with standard 5 V TTL/CMOS logic families |
| Operating Temperature | –55°C to +125°C; qualified per MIL-PRF-38535 QML for ruggedized military systems |
| Active Current (ICC) | 140 mA typ (both ports active); enables predictable thermal design in dense PCB layouts |
| Standby Current (ISB3) | 1.0 mA typ (full CMOS standby); reduces system power during idle intervals without battery backup |
Pinout & Package
Package: 48-pin plastic dual in-line package (P48-1), body dimensions ≈ 0.55 in × 2.43 in × 0.18 in, through-hole mounting, lead finish Sn/Pb.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A11L | Left port address inputs | 12-bit address bus for left-side memory access; must be stable before CE/L assertion |
| I/O0L–I/O7L | Left port bidirectional data | 8-bit data path; direction controlled by R/WL and OEL; high-impedance when OEL = VIH |
| CEL, OEL, R/WL | Left port controls | Chip enable (active low), output enable (active low), read/write select (high = read) |
| A0R–A11R | Right port address inputs | Independent 12-bit address bus; no electrical or timing dependency on left port |
| I/O0R–I/O7R | Right port bidirectional data | Electrically isolated 8-bit path; supports simultaneous but non-contentious access |
| CER, OER, R/WR | Right port controls | Functionally identical to left-side controls; enables hardware arbitration external to device |
| VCC, GND | Power supply | All VCC pins must be decoupled locally; all GND pins tied to common ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Fully asynchronous dual-port operation | Enables deterministic zero-wait-state communication between two independent processors or buses without shared clock or arbitration logic |
| 55 ns read cycle with 55 ns address access | Supports sustained 18.2 MHz random read throughput per port in military temperature range |
| TTL-compatible 5 V interface | Eliminates level-shifting circuitry when interfacing with legacy microcontrollers, FPGAs, or ASICs using standard 5 V logic |
| MIL-PRF-38535 QML qualification | Guarantees reliability, screening, and traceability for aerospace, defense, and high-reliability industrial deployments |
| Per-port power-down control | Reduces dynamic power by disabling unused port circuitry while maintaining data integrity in active port |
Applications
| Avionics Data Bus Interface | Real-Time Test Equipment |
|---|---|
|
Use Scenario: Dual-processor architecture where flight control processor writes sensor data to shared memory while navigation processor concurrently reads for position calculation. IC Role / Device Role / Timing Role: Asynchronous dual-port SRAM acting as contention-managed shared buffer with deterministic 55 ns read latency per port. Use Value: Eliminates wait states and software arbitration overhead, enabling sub-millisecond response in closed-loop flight control loops. |
Use Scenario: Automated test system with master controller and stimulus generator operating on separate clocks, exchanging waveform parameters and measurement results. IC Role / Device Role / Timing Role: Hardware-synchronized memory conduit supporting simultaneous write (stimulus config) and read (acquisition status) without CPU intervention. Use Value: Achieves 100% bus utilization across independent clock domains, reducing test cycle time by up to 35% versus single-port alternatives. |
| Radar Signal Processing | Military Communications Terminal |
|
Use Scenario: Digital signal processor (DSP) writes processed radar returns into memory while field-programmable gate array (FPGA) reads for display rendering and target tracking. IC Role / Device Role / Timing Role: High-reliability dual-port buffer enabling real-time pipelined processing under extended temperature extremes (–55°C to +125°C). Use Value: Maintains data coherency and timing predictability in mission-critical radar subsystems where failure is not an option. |
Use Scenario: Secure voice/data terminal with separate encryption engine and radio baseband processor sharing configuration tables and encrypted payload buffers. IC Role / Device Role / Timing Role: MIL-qualified memory resource providing tamper-resistant, electrically isolated access paths for cryptographic and RF subsystems. Use Value: Meets DoD TEMPEST and environmental requirements while enabling concurrent secure data loading and transmission scheduling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C133-55JC | 55 ns access, 4K × 8, 5 V, but uses JEDEC-standard PLCC-44 package (not DIP); higher ISB1 standby current (35 mA vs. 25 mA) | Requires PCB redesign for surface-mount assembly; better suited for space-constrained embedded modules than legacy through-hole systems | Select if migrating to SMT layout and requiring Cypress's long-term product continuity program |
| IDT7133SA55P | Same pinout, speed, and package, but single-port architecture (no right-port signals); lacks dual-port arbitration capability | Only supports unidirectional data flow; cannot replace IDT7134SA55P in systems requiring true concurrent read/write across two domains | Choose only for cost-sensitive applications where dual-port functionality is unnecessary and board layout reuse is critical |
Compared with CY7C133-55JC and IDT7133SA55P, the IDT7134SA55P uniquely delivers military-qualified dual-port operation in a through-hole DIP package-enabling drop-in replacement in legacy avionics and test gear without layout changes or voltage translation.
Availability
IDT7134SA55P is available at Aetrix Electronics and suitable for avionics data bus interfaces, real-time test equipment, radar signal processing, military communications terminals, and other applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for IDT7134SA55P 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
Integrated Device Technology (IDT), now part of Renesas Electronics, is a fabless semiconductor company specializing in timing, memory interface, and RF solutions for high-performance computing and communications infrastructure.
The IDT7134SA55P belongs to IDT's legacy Dual-Port SRAM product line, designed specifically for deterministic, arbitration-free interprocessor communication in military, aerospace, and industrial control systems demanding guaranteed timing and extreme environmental resilience.
FAQ
What is the maximum operating temperature range for the IDT7134SA55P?
The IDT7134SA55P is rated for –55°C to +125°C operation and is manufactured in compliance with MIL-PRF-38535 QML, making it suitable for deployment in harsh-environment military platforms such as airborne radar and missile guidance systems where thermal cycling and reliability are critical.
Does the IDT7134SA55P support battery backup data retention?
No-the IDT7134SA55P is the standard-power variant (SA suffix); only the LA variant (e.g., IDT7134LA55P) supports 2 V data retention. The IDT7134SA55P provides 5 mW typical standby power but requires continuous 5 V supply to retain data.
Can the left and right ports of the IDT7134SA55P operate at different clock frequencies?
Yes-the IDT7134SA55P has fully asynchronous ports with no shared clock requirement. Each port responds independently to its own CE, OE, and R/W signals, enabling operation with unrelated timing domains-a key feature for heterogeneous processor interconnects.
What package type does the IDT7134SA55P use, and are there footprint-compatible alternatives?
The IDT7134SA55P uses a 48-pin plastic DIP (P48-1) package. While IDT offered the same speed grade in LCC and PLCC variants (e.g., IDT7134SA55L, IDT7134SA55J), those require different footprints and are not mechanically interchangeable with the P-suffix DIP version.
How does the IDT7134SA55P handle simultaneous access to the same memory location from both ports?
The IDT7134SA55P does not resolve contention internally-the user must implement external arbitration logic. If both ports attempt read/write to the same address simultaneously, data integrity is not guaranteed; the device outputs reflect the last-write-wins behavior determined by signal propagation delays.
7134SA55P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 48-DIP (0.600", 15.24mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Asynchronous
- Memory Size:
- 32Kbit
- Memory Organization:
- 4K 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:
- Through Hole
- Supplier Device Package:
- 48-PDIP
7134SA55P FAQ
1.How can I place an order for 7134SA55P through Aetrix?
Please submit a Request for Quotation (RFQ) for 7134SA55P 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 7134SA55P reliable?
The price and inventory of 7134SA55P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7134SA55P is usually 5 days.
3.What payment methods are accepted for 7134SA55P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7134SA55P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7134SA55P?
7134SA55P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7134SA55P 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 7134SA55P?
For technical support, including 7134SA55P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7134SA55P requirements.
6.How does Aetrix verify that 7134SA55P is sourced from the original manufacturer or authorized distributors?
All 7134SA55P 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 7134SA55P meets industry standards.
7.What is the process for return or replacement of 7134SA55P?
All 7134SA55P units undergo pre-shipment inspection (PSI). If there is an issue with 7134SA55P, 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 7134SA55P part is unused and in its original packaging.
Return procedure for 7134SA55P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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