My Inquiry
My Account
Renesas 7133LA25PFGI8
- Part No.:
- 7133LA25PFGI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 100-LQFP
- Datasheet:
-
7133LA25PFGI8.pdf
- Description:
- IC SRAM 32KBIT PARALLEL 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,562
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
7133LA25PFGI8 from IDT (Integrated Device Technology) is a high-speed 2K × 16 dual-port static RAM configured as a MASTER device with on-chip arbitration logic, 25 ns maximum access time, industrial temperature range (–40°C to +85°C), and low-power LA variant consuming 1050 mW active / 1 mW standby power. It enables error-free 32-bit+ memory expansion when paired with IDT7143 SLAVE devices in real-time embedded control systems.
For engineers reviewing the 7133LA25PFGI8 datasheet, 7133LA25PFGI8 pinout, 7133LA25PFGI8 application, or 7133LA25PFGI8 equivalent, key selection considerations include BUSY arbitration timing (tBAA ≤ 25 ns), byte-selectable write control (R/WLUB/R/WLLB), battery backup data retention at 2 V, TTL-compatible 5 V ±10% operation, and 68-pin PLCC package compatibility.
Technical Context
The 7133LA25PFGI8 implements fully asynchronous dual-port architecture with independent left/right address, control, and I/O buses-enabling concurrent read/write operations without internal synchronization. Its on-chip arbitration logic resolves port-to-port contention by asserting open-drain BUSYL/BUSYR flags, requiring external pull-up resistors for proper operation.
As a MASTER device, it supports width expansion via BUSY-driven cascading with IDT7143 SLAVE units: BUSY output from 7133LA25PFGI8 serves as write-inhibit input to SLAVEs, eliminating "busy lock-out" in multi-chip 32-bit systems. The LA variant integrates CMOS low-power design enabling 2 V data retention during battery backup mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 2K × 16 (32,768 bits), dual-port SRAM with independent left/right access paths |
| Access Time (max) | 25 ns - guarantees deterministic read latency for real-time control loops at 40 MHz effective throughput |
| Supply Voltage | 5.0 V ±10% - TTL-compatible single-supply operation; no level-shifting required in legacy 5 V systems |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments including motor drives and PLCs |
| Power Consumption | Active: 1050 mW typ.; Standby: 1 mW typ. - enables energy-sensitive applications with fast wake-up from CE-controlled sleep |
| Data Retention | 2 V minimum VCC - maintains memory state during main power loss using backup battery or capacitor |
| Arbitration Logic | On-chip BUSY flag generation (BUSYL/BUSYR) - hardware-enforced contention resolution without external logic |
Pinout & Package
7133LA25PFGI8 is packaged in a 68-pin Plastic Leaded Chip Carrier (PLCC), body size ≈ 24.2 mm × 24.2 mm × 3.9 mm, with dual-row gull-wing leads. Both VCC and GND pins must be connected to ensure reliable operation per datasheet Note 1–2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0L–A10L, A0R–A10R | Address Inputs (Left/Right) | 11-bit address per port selects one of 2K locations; fully independent addressing enables simultaneous access to different addresses |
| I/O0L–I/O15L, I/O0R–I/O15R | Bidirectional Data Bus (Left/Right) | 16-bit parallel data path per port; high-impedance tri-state control via OEL/OER allows bus sharing |
| CEL, CER | Chip Enable (Left/Right) | Active-low enables respective port; CE HIGH places port in ultra-low ISB3 standby (0.2 mA typ.) |
| R/WLUB, R/WLLB, R/WRUB, R/WRLB | Byte Write Enable (Upper/Lower) | Independent upper/lower byte write control per port enables 8-bit sub-word updates without masking logic |
| OEL, OER | Output Enable (Left/Right) | Active-low enables data output drivers; OE HIGH disables outputs to prevent bus conflicts |
| BUSYL, BUSYR | Busy Flag (Open-Drain Output) | Indicates port contention; requires external pull-up resistor; used for arbitration or interrupt signaling |
Key Features
| Feature | Design Value |
|---|---|
| MASTER/SLAVE width expansion | Enables seamless 32-bit+ memory systems using one 7133LA25PFGI8 MASTER and multiple IDT7143 SLAVEs without discrete arbitration logic |
| Byte-selectable write control | Separate R/WLUB/R/WLLB and R/WRUB/R/WRLB signals allow atomic 8-bit writes to either half of 16-bit word - eliminates read-modify-write overhead |
| Hardware BUSY arbitration | On-chip logic asserts BUSYL/BUSYR within 25 ns (tBAA) to stall contending ports - prevents data corruption during simultaneous access to same address |
| Battery backup retention | Maintains stored data at VCC ≥ 2 V with ICCDR ≤ 4000 µA (industrial grade) - supports fail-safe state preservation during power interruption |
| Low-power LA variant | Reduces standby current to 1 mW typ. vs. SA variant's 5 mW - extends battery life in portable or energy-constrained systems |
Applications
| Industrial Motion Controller | Digital Signal Processor Interface |
|---|---|
Use Scenario: Real-time servo loop execution where FPGA and DSP simultaneously access shared coefficient and status memory. IC Role / Device Role / Timing Role: MASTER dual-port RAM providing synchronized, contention-free data exchange between control FPGA (left port) and DSP (right port). Use Value: 25 ns access time ensures loop timing closure; BUSY arbitration prevents race conditions during parameter updates mid-cycle. |
Use Scenario: High-throughput FFT buffer in radar signal processing, requiring concurrent DMA fill and algorithm read access. IC Role / Device Role / Timing Role: Dual-port SRAM acting as ping-pong buffer - left port accepts ADC stream via DMA, right port feeds FFT engine. Use Value: Independent 16-bit buses enable full bandwidth utilization; byte write enables precise coefficient patching without disturbing active data. |
| Redundant PLC Memory Module | Avionics Data Logger |
Use Scenario: Fault-tolerant programmable logic controller with hot-swappable CPU modules sharing configuration and I/O image. IC Role / Device Role / Timing Role: MASTER RAM holding mirrored process image; BUSY logic coordinates write access between primary and backup CPUs. Use Value: On-chip arbitration eliminates external glue logic; 2 V data retention preserves critical state during switchover or brownout. |
Use Scenario: Flight data recorder capturing sensor streams and system events under DO-160 environmental stress. IC Role / Device Role / Timing Role: Dual-port buffer isolating ARINC 429 receiver (left port) from flash write controller (right port) to prevent data loss during erase cycles. Use Value: Industrial temp rating (–40°C to +85°C) and MIL-PRF-38535 QML compliance ensure reliability in avionics 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 |
|---|---|---|---|
| IDT7143LA25PFGI8 | SLAVE-only variant; BUSY pins are inputs (not outputs); no on-chip arbitration logic | Used only in width-expanded systems with 7133LA25PFGI8 MASTER; cannot operate standalone as arbitration node | Select when building 32-bit+ memory arrays requiring BUSY-driven write inhibition across multiple chips |
| CY7C133-25JC | 2K × 16 dual-port SRAM from Cypress; 25 ns access; no built-in BUSY arbitration; requires external logic for contention management | Suitable for simpler dual-CPU systems without strict real-time arbitration needs; lacks MASTER/SLAVE expansion capability | Choose for cost-sensitive designs where external arbitration is acceptable and board space permits discrete logic |
Compared with IDT7143LA25PFGI8, the 7133LA25PFGI8 provides essential MASTER arbitration functionality and BUSY output capability; compared with CY7C133-25JC, it delivers integrated hardware arbitration and lower standby power, reducing BOM count and improving system-level determinism.
Availability
7133LA25PFGI8 is available at Aetrix Electronics and suitable for industrial motion controllers, avionics data loggers, redundant PLC modules, and digital signal processor interfaces requiring stable component supply across extended product lifecycles.
Supply support for 7133LA25PFGI8 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 timing, memory, and interface solutions, now part of Renesas Electronics.
The IDT7133/7143 family was designed specifically for real-time embedded systems requiring deterministic dual-port memory access, hardware arbitration, and industrial-grade reliability - targeting motion control, telecom infrastructure, and aerospace applications.
FAQ
What is the function of the BUSY pins on the 7133LA25PFGI8?
The BUSYL and BUSYR pins on the 7133LA25PFGI8 are open-drain outputs that signal port contention when both left and right ports attempt simultaneous access to the same memory location. They require external pull-up resistors and are used to stall the contending port or trigger an interrupt. This hardware arbitration is exclusive to the MASTER 7133 variant and is not present in SLAVE devices like IDT7143LA25PFGI8.
Can the 7133LA25PFGI8 operate with a 3.3 V supply?
No, the 7133LA25PFGI8 is specified for 5.0 V ±10% operation only (4.5 V to 5.5 V). It is TTL-compatible and not 3.3 V tolerant. Applying 3.3 V will result in undefined behavior, including failure to meet 25 ns access timing, incorrect logic thresholds, and potential data retention loss below the 2 V minimum retention voltage. Use level translators if interfacing with 3.3 V controllers.
How does the 7133LA25PFGI8 support battery backup operation?
The 7133LA25PFGI8 retains stored data at VCC ≥ 2.0 V with typical current draw of 100 µA (max 4000 µA in industrial grade). When main 5 V supply drops, a backup battery or capacitor maintains VCC above 2 V, preserving memory contents without refresh. This feature is intrinsic to the LA (low-power) variant and is validated per datasheet Table 08 under data retention characteristics.
Is the 7133LA25PFGI8 pin-compatible with the SA version (e.g., 7133SA25PFGI8)?
Yes, the 7133LA25PFGI8 shares identical pinout, package (68-pin PLCC), and AC/DC specifications with the SA variant except for power consumption: LA reduces active current to 1050 mW (typ.) and standby to 1 mW (typ.), versus SA's 1150 mW and 5 mW. All timing parameters (tRC = 25 ns, tBAA ≤ 25 ns) and functional behavior are identical - enabling direct substitution where lower power is required.
What is the purpose of separate upper and lower byte write enables on the 7133LA25PFGI8?
The R/WLUB/R/WLLB (left port) and R/WRUB/R/WRLB (right port) signals enable independent 8-bit writes to the upper or lower byte of the 16-bit data word. This eliminates the need for external byte masking logic or read-modify-write sequences when updating sub-word fields - critical for efficient register-mapped I/O, protocol header manipulation, or partial coefficient updates in real-time control firmware running on the 7133LA25PFGI8.
7133LA25PFGI8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 100-LQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 25ns
- Access Time:
- 25 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-TQFP (14x14)
7133LA25PFGI8 FAQ
1.How can I place an order for 7133LA25PFGI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7133LA25PFGI8 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 7133LA25PFGI8 reliable?
The price and inventory of 7133LA25PFGI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7133LA25PFGI8 is usually 5 days.
3.What payment methods are accepted for 7133LA25PFGI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7133LA25PFGI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7133LA25PFGI8?
7133LA25PFGI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7133LA25PFGI8 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 7133LA25PFGI8?
For technical support, including 7133LA25PFGI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7133LA25PFGI8 requirements.
6.How does Aetrix verify that 7133LA25PFGI8 is sourced from the original manufacturer or authorized distributors?
All 7133LA25PFGI8 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 7133LA25PFGI8 meets industry standards.
7.What is the process for return or replacement of 7133LA25PFGI8?
All 7133LA25PFGI8 units undergo pre-shipment inspection (PSI). If there is an issue with 7133LA25PFGI8, 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 7133LA25PFGI8 part is unused and in its original packaging.
Return procedure for 7133LA25PFGI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7133LA25PFGI8 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…
