My Inquiry
My Account
Renesas 7134SA20P
- Part No.:
- 7134SA20P
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 48-DIP (0.600", 15.24mm)
- Datasheet:
-
7134SA20P.pdf
- Description:
- IC SRAM 32KBIT PARALLEL 48DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,733
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
IDT7134SA20P from Integrated Device Technology is a high-speed 4K × 8 (32 Kbit) dual-port static RAM with asynchronous, independent left/right port access, 20 ns read cycle time, standard power consumption (700 mW active, 5 mW standby), and TTL-compatible 5 V ±10% operation - used in real-time inter-processor communication, video frame buffers, and military avionics data exchange systems.
For engineers reviewing the IDT7134SA20P datasheet, IDT7134SA20P pinout, IDT7134SA20P application, or IDT7134SA20P equivalent, key selection considerations include dual-port arbitration-free timing, military-grade temperature range (–55°C to +125°C), 48-pin plastic DIP package compatibility, and SRAM retention without external battery backup.
Technical Context
The IDT7134SA20P implements fully asynchronous dual-port architecture with separate address, control, and I/O buses per port - enabling concurrent read/write operations without on-chip arbitration logic. It uses CMOS high-performance fabrication for low noise and stable DC/AC timing across temperature extremes.
Each port features independent chip enable (CEL/CER), output enable (OEL/OER), and read/write (R/WL/R/WR) controls, with automatic power-down when CE is high. The device supports TTL-level inputs and outputs, and guarantees 20 ns read cycle time (tRC) and 20 ns write cycle time (tWC) under commercial conditions (0°C to +70°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 4K × 8 bits (32 Kbit), fully random-access dual-port SRAM |
| Read Cycle Time (tRC) | 20 ns max - enables 50 MHz sustained data throughput per port |
| Write Cycle Time (tWC) | 20 ns max - supports synchronized write-to-read handshaking between ports |
| Supply Voltage | 5.0 V ±10% - compatible with legacy 5 V TTL logic families and industrial power rails |
| Active Power (ICC) | 170 mA typ. at fMAX - translates to ~700 mW typical active dissipation |
| Standby Current (ISB1) | 25 mA max (both ports disabled) - ensures low quiescent draw during idle arbitration windows |
| Operating Temperature | –55°C to +125°C - qualified to MIL-PRF-38535 QML for ruggedized military deployment |
Pinout & Package
Package: 48-pin plastic DIP (P48-1), 0.600-inch width, through-hole mounting, RoHS-compliant green variant available (suffix PDG).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A11L | Left port address inputs | 12-bit address bus for left-side memory access; non-multiplexed, fully decoded |
| I/O0L–I/O7L | Left port bidirectional data lines | 8-bit parallel data path; high-impedance when OEL = VIH or CEL = VIH |
| CEL | Left port chip enable | Active-low; disables left port logic and enters ISB2/ISB4 standby mode when high |
| OEL | Left port output enable | Active-low; enables I/O drivers only during read cycles when CEL = VIL |
| R/WL | Left port read/write control | High = read, low = write; must be stable before tAS and held for tWP duration |
| A0R–A11R | Right port address inputs | Independent 12-bit address space; no electrical or timing coupling to left port addresses |
| I/O0R–I/O7R | Right port bidirectional data lines | Electrically isolated from left I/O; contention management handled externally |
| CER | Right port chip enable | Active-low; independently gates right port power and access - critical for asymmetric arbitration |
| OER | Right port output enable | Enables right-side outputs only when CER = VIL; prevents bus conflicts during mixed-mode access |
| R/WR | Right port read/write control | Functionally identical to R/WL but electrically isolated; supports simultaneous opposite-mode operations |
| VCC | Power supply | All VCC pins (multiple) must be decoupled locally; 5 V ±10% tolerance required for timing compliance |
| GND | Ground reference | All GND pins (multiple) must connect to common system ground plane to minimize noise-induced timing skew |
Key Features
| Feature | Design Value |
|---|---|
| Fully asynchronous dual-port operation | Enables deterministic, wait-state-free inter-processor communication without arbitration logic overhead |
| 20 ns read/write cycle time (commercial grade) | Supports 50 MHz real-time data exchange between FPGA and DSP subsystems in radar signal processing |
| MIL-PRF-38535 QML qualification | Guarantees reliability and parametric stability under shock, vibration, and extended thermal cycling in flight-critical systems |
| Independent per-port power-down control | Allows dynamic power gating of unused port (e.g., disable right port during sensor acquisition, retain left for host interface) |
| TTL-compatible I/O with 5 V supply | Eliminates level-shifting components in legacy 5 V embedded systems - reduces BOM count and layout complexity |
Applications
| Real-Time Inter-Processor Communication | Video Frame Buffering |
|---|---|
Use Scenario: Two microcontrollers exchange telemetry and command packets via shared memory without software arbitration or polling delays. IC Role / Device Role / Timing Role: Dual-port SRAM acts as zero-latency handshake buffer; left port serves CPU-A, right port serves CPU-B, with hardware-enforced mutual exclusion via CE sequencing. Use Value: Eliminates 3–5 µs software arbitration overhead per transaction, enabling sub-10 µs deterministic message latency. |
Use Scenario: Digital video encoder writes progressive scan frames while decoder reads previous frame for display output. IC Role / Device Role / Timing Role: IDT7134SA20P provides ping-pong frame storage with independent write/read clocks - no FIFO depth constraints or clock domain crossing logic required. Use Value: Sustains 60 fps @ 720p (1280×720×2 bytes/frame) with 20 ns access enabling full-bandwidth pixel streaming without line buffering. |
| Military Avionics Data Exchange | Digital Signal Processing Co-Processing |
Use Scenario: Flight control computer and inertial measurement unit (IMU) share sensor fusion results and actuator commands in safety-critical loop. IC Role / Device Role / Timing Role: IDT7134SA20P operates across –55°C to +125°C with MIL-qualified timing margins; dual ports isolate mission-critical IMU writes from FCU reads. Use Value: Meets DO-254 Level A timing assurance requirements with guaranteed 20 ns tRC and tWC over full military temperature range. |
Use Scenario: FPGA-based FFT accelerator writes processed spectral data into shared memory while host ARM processor reads results for classification. IC Role / Device Role / Timing Role: IDT7134SA20P serves as high-throughput staging buffer; left port connects to FPGA Avalon-MM, right port to ARM AXI bus via bridge. Use Value: Enables 1.2 GB/s aggregate bandwidth (2 × 600 MB/s) - exceeds PCIe Gen2 x1 throughput, avoiding bottleneck in real-time spectrum analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C133-25JC | 25 ns read cycle (slower), 5 V only, 44-pin PLCC package - no 48-pin DIP option | Limited to commercial temp (0°C to +70°C); lacks MIL-PRF-38535 qualification | Use only in cost-sensitive commercial systems where 5 ns timing margin is acceptable and DIP footprint not required. |
| IDT7133SA20P | Same 20 ns speed, identical 48-pin DIP package, but 2K × 8 (16 Kbit) density - half capacity | Insufficient for full frame buffering or multi-channel telemetry; requires two devices for 4K × 8 functionality | Select when memory depth can be partitioned or when board area allows dual-device layout with shared control lines. |
Compared with CY7C133-25JC and IDT7133SA20P, the IDT7134SA20P uniquely delivers military-qualified 20 ns performance in a through-hole 48-pin DIP - enabling drop-in replacement in legacy avionics without PCB redesign or thermal derating.
Availability
IDT7134SA20P is available at Aetrix Electronics and suitable for real-time inter-processor communication, video frame buffering, and military avionics data exchange requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for IDT7134SA20P 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, designs high-performance timing, memory, and interface solutions for communications, computing, and industrial markets.
IDT7134SA20P belongs to IDT's legacy dual-port SRAM product line, engineered specifically for deterministic, arbitration-free data sharing in safety-critical and high-reliability embedded systems.
FAQ
What is the maximum operating temperature range for IDT7134SA20P?
IDT7134SA20P is rated for –55°C to +125°C operation and is manufactured to MIL-PRF-38535 QML Class V standards. This military-grade temperature range ensures reliable timing and data integrity in avionics, missile guidance, and downhole drilling electronics where ambient extremes exceed industrial limits.
Does IDT7134SA20P support battery backup for data retention?
No - IDT7134SA20P is the standard-power (SA) variant and does not support battery backup. Only the LA variant (e.g., IDT7134LA20P) provides 2 V data retention capability. The SA version draws 5 mW typical standby current but requires continuous 5 V supply to maintain memory state.
Is IDT7134SA20P pin-compatible with other IDT7134 speed grades?
Yes - all IDT7134SA variants (e.g., IDT7134SA25P, IDT7134SA35P) share identical 48-pin plastic DIP pinout and electrical interface. Speed differences affect only AC timing parameters (tRC, tWC); no PCB or firmware changes are needed when upgrading within the SA family.
What is the meaning of "P" in IDT7134SA20P?
The final "P" in IDT7134SA20P denotes plastic DIP (P48-1) packaging. This distinguishes it from ceramic DIP (C), PLCC (J), LCC (L48), or flatpack (F) variants - all sharing identical internal silicon but differing in thermal, mechanical, and soldering characteristics.
How does IDT7134SA20P handle simultaneous access to the same memory location from both ports?
IDT7134SA20P does not resolve contention internally - it is the user's responsibility to manage simultaneous left/right port access to identical addresses. Uncoordinated writes may cause data corruption; external arbitration (e.g., semaphore logic or priority encoder) is required to guarantee data integrity in such cases.
7134SA20P 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:
- 20ns
- Access Time:
- 20 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
7134SA20P FAQ
1.How can I place an order for 7134SA20P through Aetrix?
Please submit a Request for Quotation (RFQ) for 7134SA20P 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 7134SA20P reliable?
The price and inventory of 7134SA20P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7134SA20P is usually 5 days.
3.What payment methods are accepted for 7134SA20P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7134SA20P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7134SA20P?
7134SA20P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7134SA20P 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 7134SA20P?
For technical support, including 7134SA20P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7134SA20P requirements.
6.How does Aetrix verify that 7134SA20P is sourced from the original manufacturer or authorized distributors?
All 7134SA20P 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 7134SA20P meets industry standards.
7.What is the process for return or replacement of 7134SA20P?
All 7134SA20P units undergo pre-shipment inspection (PSI). If there is an issue with 7134SA20P, 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 7134SA20P part is unused and in its original packaging.
Return procedure for 7134SA20P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7134SA20P 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…
