My Inquiry
My Account
Renesas 7205L15TPGI
- Part No.:
- 7205L15TPGI
- Manufacturer:
- Renesas
- Category:
- FIFOs Memory
- Package:
- 28-DIP (0.300", 7.62mm)
- Datasheet:
-
7205L15TPGI.pdf
- Description:
- IC FIFO ASYNC 8KX9 15NS 28DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,207
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
IDT7205L15TPGI from Integrated Device Technology is a high-speed CMOS asynchronous FIFO memory IC with 8,192 × 9-bit depth-width organization, 15 ns access time, and industrial temperature range (–40°C to +85°C). It supports simultaneous independent read/write operations, features Empty/Full/Half-Full status flags, and enables retransmit functionality for data replay in buffering applications such as serial protocol bridging and DSP interface synchronization.
For engineers reviewing the IDT7205L15TPGI datasheet, IDT7205L15TPGI pinout, IDT7205L15TPGI application, or IDT7205L15TPGI equivalent, key selection criteria include its 9-bit data width with parity/control bit flexibility, dual-port asynchronous timing, power-down current of 8 mA max, and compatibility within the IDT720x family for scalable depth/width expansion.
Technical Context
The IDT7205L15TPGI implements a true dual-port FIFO architecture with independent write and read pointers managed by internal logic, enabling fully asynchronous operation without clock domain constraints. Its status flag generation (EF, FF, XO/HF) is synchronized to control signal edges-not clocks-ensuring deterministic boundary detection during overflow/underflow conditions.
It supports three primary operating modes: Single Device (XI grounded), Depth Expansion (daisy-chained via XI/XO), and Width Expansion (parallel devices sharing R/W/RS). Retransmit (RT) resets only the read pointer while preserving write pointer position, and is disabled in Depth Expansion mode per functional specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 8,192 × 9-bit (73,728 bits total; 9th bit usable for parity or control) |
| Access Time (tA) | 15 ns max - defines minimum time between valid address/data setup and stable output |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V TTL/CMOS logic rails |
| Active Power Consumption | 120 mA max ICC1 - corresponds to ~600 mW at 5 V, enabling thermal budgeting in dense PCB layouts |
| Power-Down Current | 8 mA max ICC3 - reduces standby power by >93% vs active mode for energy-sensitive systems |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments including factory automation and motor drives |
| Status Flags | EF (Empty), FF (Full), XO/HF (Expansion Out / Half-Full) - enable hardware flow control without CPU polling |
Pinout & Package
Package: 28-pin Plastic Thin DIP (TP), lead finish SnPb (EOL per PDN# SP-17-02), through-hole mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8, 9 | D0–D8 | 9-bit parallel data inputs; accept TTL/CMOS logic levels; used for write-side data loading |
| 14, 15, 16, 17, 18, 19, 20, 21, 22 | Q0–Q8 | 9-bit parallel data outputs; three-state controlled by Read Enable (R); high-impedance when R = HIGH |
| 10 | FF | Active-low Full Flag; asserts LOW when FIFO contains 8,192 words, blocking further writes |
| 11 | XI | Expansion In; grounded for Single Device Mode; tied to XO of prior device in Depth Expansion |
| 12 | GND | Signal ground reference for all I/O and power pins |
| 13 | EF | Active-low Empty Flag; asserts LOW when read pointer = write pointer, blocking further reads |
| 23 | XO/HF | Dual-function: Half-Full Flag (Single Mode) or Expansion Out pulse (Depth Mode); open-drain output |
| 24 | VCC | +5 V supply input; decoupling capacitor required near pin for noise immunity |
| 25 | FL/RT | First Load / Retransmit; LOW pulse resets read pointer to start address without affecting write pointer |
| 26 | RS | Reset; synchronous active-low input that initializes both read and write pointers to zero |
| 27 | W | Write Enable; falling edge initiates write cycle if FF = HIGH; data sampled on rising edge |
| 28 | R | Read Enable; falling edge initiates read cycle if EF = HIGH; Q0–Q8 enabled on falling edge |
Key Features
| Feature | Design Value |
|---|---|
| Asynchronous Dual-Port Operation | Enables independent read/write timing with no shared clock-critical for bridging mismatched data rates (e.g., UART-to-DSP) |
| Retransmit Capability | Hardware-level read pointer reset via FL/RT pin allows deterministic data replay without software intervention or memory copy |
| Expandable Architecture | Supports unlimited depth expansion (daisy-chain) and width expansion (parallel) using only standard control signals-no external glue logic needed |
| Industrial Temperature Range | Qualified from –40°C to +85°C in plastic package-meets requirements for non-military industrial control and instrumentation |
| Status Flag Logic | EF/FF flags provide immediate hardware flow control, eliminating need for software status polling and reducing CPU overhead |
Applications
| Serial Protocol Bridging | DSP Interface Buffering |
|---|---|
Use Scenario: Interfacing a 115.2 kbps RS-232 UART with a 50 MHz DSP bus where data arrival is bursty and unpredictable. IC Role / Device Role / Timing Role: Asynchronous FIFO buffer absorbing rate mismatch; isolates UART timing domain from DSP clock domain. Use Value: Prevents UART overrun/underrun by decoupling data transfer timing; 8K×9 capacity accommodates worst-case burst without loss. | Use Scenario: Streaming sensor data from an ADC into a TI C6000 DSP for real-time FFT processing, with variable processing latency. IC Role / Device Role / Timing Role: Decoupling buffer between ADC controller and DSP DMA engine; absorbs jitter in DMA request timing. Use Value: Eliminates pipeline stalls caused by ADC-DSP timing misalignment; Half-Full flag triggers early DMA prefetch to minimize latency. |
| Motor Control Command Queuing | Legacy Bus Translation |
Use Scenario: Storing motion commands from a PLC over Modbus RTU before execution by a servo drive microcontroller. IC Role / Device Role / Timing Role: Command queue holding up to 8,192 9-bit instructions; EF/FF flags gate Modbus receive and command fetch logic. Use Value: Ensures deterministic command delivery despite variable PLC scan times and drive execution delays. | Use Scenario: Adapting a legacy 8-bit ISA peripheral to a modern 16-bit PCI Express host via FPGA bridge logic. IC Role / Device Role / Timing Role: Width-expanded FIFO (two IDT7205L15TPGI in parallel) providing 16-bit data path with synchronized status signaling. Use Value: Enables seamless bit-width conversion without custom ASIC; family pin compatibility simplifies FPGA I/O mapping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FIFO memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74V293-15PGG | 32K × 9 organization, 15 ns access, 3.3 V supply only; no industrial temp grade in TSSOP package | Requires level-shifting for 5 V systems; unsuitable for existing 5 V designs or extended temperature operation | Select only if migrating to 3.3 V system with higher depth requirement and board redesign is acceptable |
| IDT7205L15JGI | Same 8K × 9 organization and 15 ns speed, but in 32-pin PLCC package (J) with military temp range (–55°C to +125°C) | Higher reliability and extended temperature coverage; surface-mount vs through-hole; different footprint and rework profile | Choose for aerospace/defense applications requiring MIL-STD-883 qualification and surface-mount assembly |
Compared with SN74V293-15PGG and IDT7205L15JGI, the IDT7205L15TPGI uniquely balances industrial temperature support, 5 V compatibility, and through-hole packaging-making it optimal for legacy industrial controllers where voltage, thermal, and assembly constraints preclude alternatives.
Availability
IDT7205L15TPGI is available at Aetrix Electronics and suitable for serial protocol bridging, DSP interface buffering, motor control command queuing, and legacy bus translation requiring stable component supply across long-lifecycle industrial programs.
Supply support for IDT7205L15TPGI 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) is a fabless semiconductor company specializing in timing, memory interface, RF, and high-performance interconnect solutions, acquired by Renesas Electronics in 2019.
The IDT720x family was designed specifically for high-reliability asynchronous data buffering in industrial, telecom, and military systems-emphasizing deterministic flag behavior, expandability, and wide temperature operation without external clock dependencies.
FAQ
What is the memory depth and width of the IDT7205L15TPGI?
The IDT7205L15TPGI provides 8,192 words of storage depth with a 9-bit data width (8,192 × 9), totaling 73,728 bits. The ninth bit is user-configurable for parity checking or control signaling, supporting flexible system-level error detection and protocol adaptation in applications like industrial fieldbus interfaces.
Does the IDT7205L15TPGI support simultaneous read and write operations?
Yes, the IDT7205L15TPGI supports fully asynchronous and simultaneous read and write operations using independent internal pointers. This eliminates timing conflicts between producer and consumer logic, making it ideal for use cases such as UART-to-microcontroller data buffering where transmit and receive paths operate independently.
What is the function of the FL/RT pin on the IDT7205L15TPGI?
The FL/RT (First Load / Retransmit) pin on the IDT7205L15TPGI serves a dual role: in Single Device Mode, a LOW pulse resets the read pointer to the first location without altering the write pointer-enabling hardware-triggered data replay. This feature is disabled in Depth Expansion Mode per datasheet specification.
Is the IDT7205L15TPGI compatible with 3.3 V logic systems?
No, the IDT7205L15TPGI is specified for 4.5 V to 5.5 V supply operation and requires TTL/CMOS 5 V input thresholds (VIH = 2.0 V min). Direct connection to 3.3 V logic requires level-shifting circuitry; for native 3.3 V operation, consider the IDT72V211 or SN74V293 families instead of the IDT7205L15TPGI.
What package type and lead finish does the IDT7205L15TPGI use?
The IDT7205L15TPGI uses a 28-pin Plastic Thin DIP (TP) package with SnPb lead finish. Per IDT PDN# SP-17-02, SnPb parts are in End-of-Life process with last-time-buy expiration on June 15, 2018-Aetrix Electronics maintains legacy inventory with full traceability and documentation for continued industrial support.
7205L15TPGI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 7200
- Package/Case:
- 28-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Size:
- 72K (8K x 9)
- Function:
- Asynchronous
- Data Rate:
- 40MHz
- Access Time:
- 15ns
- Voltage - Supply:
- 4.5 V ~ 5.5 V
- Current - Supply (Max):
- 120mA
- Bus Directional:
- Uni-Directional
- Expansion Type:
- Depth, Width
- Programmable Flags Support:
- No
- Retransmit Capability:
- Yes
- FWFT Support:
- No
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 28-PDIP
7205L15TPGI FAQ
1.How can I place an order for 7205L15TPGI through Aetrix?
Please submit a Request for Quotation (RFQ) for 7205L15TPGI 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 7205L15TPGI reliable?
The price and inventory of 7205L15TPGI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7205L15TPGI is usually 5 days.
3.What payment methods are accepted for 7205L15TPGI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7205L15TPGI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7205L15TPGI?
7205L15TPGI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7205L15TPGI 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 7205L15TPGI?
For technical support, including 7205L15TPGI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7205L15TPGI requirements.
6.How does Aetrix verify that 7205L15TPGI is sourced from the original manufacturer or authorized distributors?
All 7205L15TPGI 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 7205L15TPGI meets industry standards.
7.What is the process for return or replacement of 7205L15TPGI?
All 7205L15TPGI units undergo pre-shipment inspection (PSI). If there is an issue with 7205L15TPGI, 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 7205L15TPGI part is unused and in its original packaging.
Return procedure for 7205L15TPGI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7205L15TPGI Tags
-
7201LA15JGI
Renesas
-
7204L12JG
Renesas
-
72V82L15PAG8
Renesas
-
7205L15JGI
Renesas
-
7208L20JG
Renesas
-
72V2105L10PFG
Renesas
-
72V2111L15PFGI
Renesas
-
72V2113L6PFG
Renesas
-
72V36110L6PFG
Renesas
-
SN74ALVC7804-40DL
Texas Instruments
-
7202LA25JGI
Renesas
-
SN74V245-15PAG
Texas Instruments
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…
