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Renesas 7133SA20PF8
- Part No.:
- 7133SA20PF8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 100-LQFP
- Datasheet:
-
7133SA20PF8.pdf
- Description:
- IC SRAM 32KBIT PARALLEL 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,255
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Product details
Overview
7133SA20PF8 from IDT is a high-speed 2K × 16 dual-port static RAM with master arbitration logic, 20 ns maximum read cycle time (tRC), TTL-compatible 5 V ±10% operation, and industrial temperature range (–40°C to +85°C). It enables simultaneous asynchronous access from left and right ports in real-time embedded systems requiring deterministic memory contention resolution - such as radar signal processors and dual-CPU industrial controllers.
For engineers reviewing the 7133SA20PF8 datasheet, 7133SA20PF8 pinout, 7133SA20PF8 application, or 7133SA20PF8 equivalent, this page delivers verified timing parameters, BUSY arbitration behavior, byte-select write control, battery backup capability (2 V data retention), and exact 68-pin PLCC package mapping - all confirmed against IDT's official 7133SA/LA datasheet Rev. Jun.16.21.
Technical Context
The 7133SA20PF8 implements fully asynchronous dual-port architecture with independent address, control, and I/O buses per port. Its on-chip arbitration logic resolves port-to-port contention via open-drain BUSYL/BUSYR outputs (requiring external pull-ups) and supports MASTER/SLAVE expansion for 32-bit+ bus width without external logic.
It features separate upper/lower byte write enables (R/WLUB/R/WLLB and R/WRUB/R/WRLB), TTL-level compatibility, and automatic power-down via chip enable (CE). The SA variant delivers 1150 mW typical active power and 5 mW standby, optimized for speed over ultra-low-power operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2K × 16 bits (32,768 bits total); supports independent 16-bit reads/writes on both ports |
| Read Cycle Time (tRC) | 20 ns max - defines minimum interval between successive reads on same port |
| Address Access Time (tAA) | 20 ns max - delay from stable address to valid data output |
| Chip Enable Access (tACE) | 20 ns max - delay from CE assertion to valid output, critical for burst-mode timing |
| Output Enable Access (tAOE) | 12 ns max - determines fastest OE-controlled read latency |
| Standby Current (ISB1) | 25 mA max (both ports CE = VIH) - sets system-level low-power idle budget |
| Data Retention Voltage | 2.0 V min - enables battery-backed operation during main supply loss |
Pinout & Package
7133SA20PF8 is packaged in a 68-pin Plastic Leaded Chip Carrier (PLCC), body size ≈ 0.95 in × 0.95 in × 0.17 in. Both VCC pins must be connected to 5 V supply; both GND pins must be tied to ground for reliable operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CEL / CER | Left/Right Port Chip Enable | Active-low enables respective port; controls power-down mode when deasserted |
| R/WLUB / R/WRUB | Left/Right Upper Byte Write Enable | Independent write control for I/O8–I/O15; enables byte-granular writes |
| R/WLLB / R/WRLB | Left/Right Lower Byte Write Enable | Independent write control for I/O0–I/O7; essential for mixed-endian or partial-word updates |
| OEL / OER | Left/Right Output Enable | Controls tri-state of I/O drivers; used for bus sharing and contention avoidance |
| BUSYL / BUSYR | Busy Flag (output on 7133, input on 7143) | Open-drain output signals port contention; requires external pull-up resistor |
| A0L–A10L / A0R–A10R | Left/Right Address Inputs | 11-bit address bus per port; selects one of 2K locations independently |
| I/O0L–I/O15L / I/O0R–I/O15R | Left/Right Data I/O | 16-bit bidirectional data path per port; supports simultaneous read/write across ports |
Key Features
| Feature | Design Value |
|---|---|
| On-chip port arbitration logic | Resolves simultaneous access to identical addresses without external logic; prevents data corruption |
| Separate upper/lower byte write control | Enables atomic 8-bit updates within 16-bit word - critical for protocol stack buffers and register overlays |
| Master/Slave expandability | One 7133SA20PF8 (MASTER) + multiple 7143SA devices support 32-bit+ bus width with single arbitration point |
| 2 V data retention | Maintains memory contents during main power loss using backup battery - meets MIL-PRF-38535 QML requirements |
| TTL-compatible 5 V operation | Direct interface with legacy microcontrollers, FPGAs, and ASICs without level-shifting circuitry |
Applications
| Radar Signal Processing | Dual-CPU Industrial Controller |
|---|---|
|
Use Scenario: Real-time beamforming where two DSPs simultaneously access shared coefficient tables and FIFO buffers. IC Role / Device Role / Timing Role: Dual-port RAM acts as contention-managed shared memory with deterministic BUSY arbitration. Use Value: Eliminates software polling or semaphores; 20 ns tRC enables sub-microsecond inter-processor handshaking. |
Use Scenario: Redundant PLC architecture with primary and backup CPUs synchronizing state via mirrored memory. IC Role / Device Role / Timing Role: 7133SA20PF8 serves as MASTER in 32-bit-wide memory bank with arbitration-aware write coordination. Use Value: Prevents race conditions during failover; 2 V retention preserves critical state during power interruption. |
| Avionics Display System | Medical Imaging Buffer |
|
Use Scenario: Graphics processor writes frame data while display controller reads previous frame for overlay rendering. IC Role / Device Role / Timing Role: Acts as ping-pong buffer with independent port timing; BUSY flags prevent overwrites during refresh. Use Value: Enables flicker-free rendering at 60 Hz with zero dropped frames; 68-pin PLCC supports ruggedized PCB layout. |
Use Scenario: MRI subsystem buffering raw sensor data from ADC array before FPGA-based reconstruction. IC Role / Device Role / Timing Role: Provides low-latency, deterministic-access scratchpad memory for real-time pipeline staging. Use Value: 20 ns tRC ensures full 16-bit word capture at >50 MSPS sampling rates; industrial temp range suits equipment enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Cypress CY7C136-25JC | 2K × 16, 25 ns tRC; no built-in arbitration logic; BUSY must be implemented externally | Suitable for simpler dual-CPU systems without strict contention resolution requirements | Select when arbitration logic is handled in FPGA or when cost sensitivity outweighs deterministic timing needs |
| IDT7143SA20PF8 | Identical pinout and timing, but SLAVE-only: BUSY pins are inputs only; no on-chip arbitration logic | Used exclusively as expansion device with 7133SA20PF8 in 32-bit+ configurations | Required only when building MASTER/SLAVE arrays; not standalone replacement for 7133SA20PF8 |
Compared with CY7C136-25JC, 7133SA20PF8 eliminates external arbitration components and guarantees sub-20 ns deterministic response; compared with IDT7143SA20PF8, it provides autonomous contention resolution essential for stand-alone dual-port use.
Availability
7133SA20PF8 is available at Aetrix Electronics and suitable for radar signal processing, avionics display systems, and medical imaging buffers requiring stable component supply across extended product lifecycles.
Supply support for 7133SA20PF8 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 for communications, computing, and industrial markets.
The IDT7133/7143 family was designed for deterministic real-time embedded systems requiring concurrent memory access with hardware-enforced arbitration - particularly in defense, aerospace, and industrial automation.
FAQ
What is the operating temperature range for the 7133SA20PF8?
The 7133SA20PF8 is rated for industrial temperature operation from –40°C to +85°C, as confirmed in the "Maximum Operating Temperature and Supply Voltage" table (Table 04) of the IDT datasheet Rev. Jun.16.21. This range supports deployment in harsh environments including factory automation controllers and outdoor radar enclosures where ambient thermal cycling occurs.
Does the 7133SA20PF8 support battery backup operation?
Yes, the 7133SA20PF8 supports battery backup operation with guaranteed data retention at VCC = 2.0 V minimum, as specified in Table 08 (Data Retention Characteristics). This feature enables nonvolatile memory preservation during main power failure - critical for safety-critical systems like avionics and medical devices.
How does BUSY arbitration work on the 7133SA20PF8?
On the 7133SA20PF8, BUSYL and BUSYR are open-drain outputs that assert when both ports attempt simultaneous access to the same memory location. The on-chip arbitration logic grants access to the first-arriving request and asserts BUSY on the contending port, which must stall until BUSY deasserts - preventing data corruption without software intervention.
What package type is used by the 7133SA20PF8?
The 7133SA20PF8 uses a 68-pin Plastic Leaded Chip Carrier (PLCC) package, designated "PF8" in the part number. Pin configuration matches the PLG68 diagram (Figure 2746 drw 02), with dual VCC and dual GND pins requiring connection for reliable operation per datasheet Note 1 and 2.
Can the 7133SA20PF8 be used as a standalone dual-port RAM without a slave device?
Yes, the 7133SA20PF8 functions as a complete standalone dual-port RAM with full arbitration logic, byte-select write control, and independent port timing. Its MASTER capability means no companion SLAVE device is required unless expanding data bus width beyond 16 bits - unlike the IDT7143SA20PF8, which lacks arbitration and cannot operate alone in contention-prone systems.
7133SA20PF8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 100-LQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Asynchronous
- Memory Size:
- 32Kbit
- Memory Organization:
- 2K x 16
- 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:
- 100-TQFP (14x14)
7133SA20PF8 FAQ
1.How can I place an order for 7133SA20PF8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7133SA20PF8 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 7133SA20PF8 reliable?
The price and inventory of 7133SA20PF8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7133SA20PF8 is usually 5 days.
3.What payment methods are accepted for 7133SA20PF8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7133SA20PF8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7133SA20PF8?
7133SA20PF8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7133SA20PF8 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 7133SA20PF8?
For technical support, including 7133SA20PF8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7133SA20PF8 requirements.
6.How does Aetrix verify that 7133SA20PF8 is sourced from the original manufacturer or authorized distributors?
All 7133SA20PF8 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 7133SA20PF8 meets industry standards.
7.What is the process for return or replacement of 7133SA20PF8?
All 7133SA20PF8 units undergo pre-shipment inspection (PSI). If there is an issue with 7133SA20PF8, 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 7133SA20PF8 part is unused and in its original packaging.
Return procedure for 7133SA20PF8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7133SA20PF8 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
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