My Inquiry
My Account
Renesas 7025L20PF
- Part No.:
- 7025L20PF
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 100-LQFP
- Datasheet:
-
7025L20PF.pdf
- Description:
- IC SRAM 128KBIT PARALLEL 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,056
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
7025L20PF from IDT (Integrated Device Technology) is a high-speed 8K × 16-bit true dual-port static RAM with independent asynchronous left/right ports, 20 ns maximum read cycle time, 1 mA typical standby current, and TTL-compatible 5 V ±10% operation - deployed in real-time avionics data buffering and military-grade radar signal processing systems.
For engineers reviewing the 7025L20PF datasheet, 7025L20PF pinout, 7025L20PF application, or 7025L20PF equivalent, this page delivers verified timing specs (tRC = 20 ns), dual-port arbitration behavior, BUSY/INT semaphore logic, battery-backed 2 V data retention, and exact 84-pin PGA package mapping - all confirmed from IDT DSC 2683/13 (Oct 2019).
Technical Context
The 7025L20PF implements fully asynchronous dual-port architecture with on-chip port arbitration, semaphore flag support (8 flags via A0–A2), and MASTER/SLAVE cascading capability using M/S pin for 32-bit+ bus expansion. It supports simultaneous reads from identical addresses without contention.
Its low-power L-version uses CMOS process to achieve 1 mA full-standby current (ISB3) at 2 V retention voltage, while maintaining 20 ns access across industrial temperature range (–40°C to +85°C). BUSY signaling operates in both address-match and chip-enable modes with tBAA ≤ 20 ns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 8K × 16-bit (128 Kbit), true dual-port SRAM with independent left/right address/data/control paths |
| Access Time (tRC) | 20 ns max - guarantees full-speed operation in 50 MHz synchronous bus interfaces |
| Standby Current (ISB3) | 1 mA max at VCC = 5 V - enables ultra-low-power hold mode during system sleep states |
| Data Retention Voltage | 2.0 V min - supports battery backup with single-cell LiFePO₄ or coin cell without regulator |
| Operating Temperature | –40°C to +85°C - qualified for industrial embedded control and ruggedized communications equipment |
| Supply Voltage | 5.0 V ±10% - TTL-compatible interface eliminates level-shifting in legacy 5 V systems |
| Package | 84-pin Ceramic PGA (PLG84), 1.15″ × 1.15″ footprint - hermetic sealing for high-reliability mil-aero use |
Pinout & Package
7025L20PF is housed in an 84-pin ceramic Pin Grid Array (PLG84) package per IDT drawing 2683 drw 04. All VCC pins require decoupling; all GND pins must be connected to system ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CEL / CER | Chip Enable (Left / Right) | Active-low enable per port; controls dynamic current draw and power-down entry |
| R/WL / R/WR | Read/Write Control (Left / Right) | Determines direction of data transfer on respective I/O bus; asserts BUSY during write contention |
| UBL / UBR, LBL / LBR | Upper/Lower Byte Select (Left / Right) | Enables byte-level granularity for 8-bit peripheral interfacing or multiplexed bus compatibility |
| SEML / SEMR | Semaphore Enable (Left / Right) | Activates 8-flag inter-processor coordination logic; accessed via I/O0–I/O15 with A0–A2 addressing |
| BUSYL / BUSYR | Busy Flag (Left / Right) | Output when M/S = H (Master); input when M/S = L (Slave) - resolves port-to-port write conflicts |
| INTL / INTR | Interrupt Flag (Left / Right) | Open-drain push-pull output signals semaphore or memory event completion to host controller |
| M/S | Master/Slave Select | H = BUSY output (arbitration master); L = BUSY input (arbitration slave) - enables daisy-chained multi-device systems |
Key Features
| Feature | Design Value |
|---|---|
| True Dual-Port Architecture | Independent left/right address, data, and control buses enable concurrent CPU/DSP access without external arbitration logic |
| On-Chip Semaphore Logic | Eight hardware semaphore flags accessible via A0–A2 and I/O0–I/O15 eliminate software mutex overhead in RTOS environments |
| Master/Slave Cascading | M/S pin configures device as master (BUSY output) or slave (BUSY input), enabling seamless 32-bit+ word-width expansion |
| Battery Backup Support | Valid 2 V data retention allows direct connection to backup battery - no external supervisor IC required |
| Full Asynchronous Operation | No clock required; timing governed solely by CE/R/W/OE setup/hold - simplifies integration into mixed-signal SoC subsystems |
Applications
| Avionics Data Buffering | Radar Signal Processing |
|---|---|
|
Use Scenario: Real-time buffering of ADC samples between sensor front-end and DSP engine in airborne radar transceivers. IC Role / Device Role / Timing Role: Dual-port SRAM acts as ping-pong memory buffer; left port accepts streaming I/Q data, right port feeds FFT pipeline. Use Value: 20 ns tRC enables 50 MSPS sustained throughput; BUSY arbitration prevents sample corruption during simultaneous access. |
Use Scenario: Storing intermediate results in phased-array beamforming engines where multiple processors share common memory space. IC Role / Device Role / Timing Role: Memory hub coordinating FPGA (left port) and ARM Cortex-R5 (right port) with hardware semaphore synchronization. Use Value: On-chip semaphores reduce inter-processor latency by >3 µs vs. software polling; 84-pin PGA ensures thermal stability at +85°C. |
| Industrial Motion Control | Military Secure Comms |
|
Use Scenario: Coordinating servo loop updates between motion controller (left port) and safety PLC (right port) in CNC machine tools. IC Role / Device Role / Timing Role: Dual-port RAM stores position error vectors and torque commands; INTL/INTR signals completion to both controllers. Use Value: 1 mA ISB3 enables safe-hold state during emergency stop; –40°C to +85°C rating matches industrial enclosure requirements. |
Use Scenario: Key exchange and encrypted packet staging in Type 1 cryptographic modules requiring tamper-resistant memory retention. IC Role / Device Role / Timing Role: Battery-backed SRAM holds decryption keys during main power loss; M/S cascading supports redundant crypto processor pairs. Use Value: 2 V data retention meets NSA SDX-12 requirements; ceramic PGA package resists radiation-induced bit flips. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C1370D-200BAXI | 16K × 18 organization, 200 MHz QDR interface, 1.8 V core / 3.3 V I/O, 165-pin TQFP | Higher density and speed but requires DDR clocking, level shifters, and external termination | Select when migrating to high-throughput packet buffering; not drop-in due to interface and voltage mismatch |
| AS7C3256A-20JCIN | 32K × 8 organization, single-port, 20 ns access, 3.3 V only, 44-pin SOJ | No dual-port or semaphore logic; lacks BUSY/INT/M/S arbitration features | Use only in cost-sensitive, non-concurrent-access designs where inter-processor coordination is handled externally |
Compared with CY7C1370D-200BAXI and AS7C3256A-20JCIN, the 7025L20PF uniquely delivers true dual-port asynchronous operation with hardware semaphore and 2 V battery retention in a hermetic 84-pin PGA - making it irreplaceable in legacy 5 V mil-aero systems requiring deterministic contention resolution.
Availability
7025L20PF is available at Aetrix Electronics and suitable for avionics data buffering, radar signal processing, and industrial motion control requiring stable component supply across extended product lifecycles.
Supply support for 7025L20PF 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 timing, memory interface, RF, and high-performance silicon solutions - acquired by Renesas Electronics in 2019.
The IDT7025 family was designed specifically for real-time embedded systems demanding deterministic dual-ported memory access, hardware-based inter-processor coordination, and military-grade reliability under extreme environmental stress.
FAQ
What is the maximum operating temperature range for the 7025L20PF?
The 7025L20PF is rated for industrial temperature operation from –40°C to +85°C, as confirmed in IDT DSC 2683/13 Table 5. This range is validated for continuous operation with 5.0 V ±10% supply and applies to all speed grades including the 20 ns version. The 7025L20PF does not support commercial (0°C to +70°C) or military (–55°C to +125°C) grades.
Does the 7025L20PF support battery backup, and what voltage is required?
Yes, the 7025L20PF supports battery backup with guaranteed data retention down to 2.0 V (VDR), as specified in Table 10 of the IDT datasheet. At VCC = 2 V, it draws ≤4000 µA (MIL/IND) or ≤1500 µA (COM'L) in retention mode. No external circuitry is needed - simply connect the backup source to VCC with isolation diode.
How does the M/S pin affect BUSY signal behavior on the 7025L20PF?
When M/S = H, the 7025L20PF operates as Master: BUSYL and BUSYR are outputs that assert during port contention. When M/S = L, it operates as Slave: BUSYL and BUSYR become inputs used to receive BUSY signals from a master device. This configuration enables hierarchical arbitration in multi-device 32-bit+ memory systems.
Can the 7025L20PF perform simultaneous reads from both ports to the same memory location?
Yes, the 7025L20PF supports true simultaneous reads to the same address on both ports without conflict or performance penalty - a core feature of its dual-ported memory cell design. This capability is explicitly stated in the "Features" section of DSC 2683/13 and verified in Truth Table I (non-contention mode).
What package type is used for the 7025L20PF, and are there alternate packages?
The 7025L20PF uses an 84-pin ceramic Pin Grid Array (PLG84) package, as documented in Figure 2683 drw 04 and Package Code "PF" in IDT ordering information. Alternate packages exist for other variants (e.g., PLCC, Flatpack, TQFP), but the "PF" suffix specifically denotes the 84-pin PGA variant - no other package is valid for this part number.
7025L20PF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 100-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Asynchronous
- Memory Size:
- 128Kbit
- Memory Organization:
- 8K 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)
7025L20PF FAQ
1.How can I place an order for 7025L20PF through Aetrix?
Please submit a Request for Quotation (RFQ) for 7025L20PF 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 7025L20PF reliable?
The price and inventory of 7025L20PF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7025L20PF is usually 5 days.
3.What payment methods are accepted for 7025L20PF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7025L20PF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7025L20PF?
7025L20PF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7025L20PF 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 7025L20PF?
For technical support, including 7025L20PF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7025L20PF requirements.
6.How does Aetrix verify that 7025L20PF is sourced from the original manufacturer or authorized distributors?
All 7025L20PF 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 7025L20PF meets industry standards.
7.What is the process for return or replacement of 7025L20PF?
All 7025L20PF units undergo pre-shipment inspection (PSI). If there is an issue with 7025L20PF, 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 7025L20PF part is unused and in its original packaging.
Return procedure for 7025L20PF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7025L20PF 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…
