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Renesas 7204L12SOG8
- Part No.:
- 7204L12SOG8
- Manufacturer:
- Renesas
- Category:
- FIFOs Memory
- Package:
- 28-SOIC (0.345", 8.77mm Width)
- Datasheet:
-
7204L12SOG8.pdf
- Description:
- IC FIFO ASYNC 4KX9 12NS 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:849
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Product details
Overview
IDT7204L12SOG8 from Integrated Device Technology is a 4,096 x 9-bit asynchronous CMOS FIFO memory buffer with 12 ns access time, 5 V supply operation, and industrial temperature range (–40°C to +85°C). It supports simultaneous read/write, features Empty/Full/Half-Full status flags, and enables retransmit functionality for data replay in buffering applications such as serial protocol bridging.
For engineers reviewing the IDT7204L12SOG8 datasheet, IDT7204L12SOG8 pinout, IDT7204L12SOG8 application, or IDT7204L12SOG8 equivalent, key selection criteria include its 12 ns access timing, 9-bit data width with parity/control bit option, dual-port asynchronous interface, industrial-grade reliability, and SOIC-28 package compatibility with legacy board layouts.
Technical Context
The IDT7204L12SOG8 implements a true dual-port FIFO architecture with independent read and write pointers, enabling fully asynchronous data flow without clock domain synchronization. Its internal RAM array stores 4,096 words of 9-bit data, with status flag logic (EF, FF, XO/HF) driven directly by pointer comparison and edge-triggered control inputs (W, R, RS, FL/RT).
It operates in Single Device Mode when XI is grounded, supporting retransmit (RT pulse) to reset the read pointer without affecting the write pointer. The device is not compatible with Depth Expansion Mode when RT is active, and HF flag behavior is defined only in single-device configuration with precise timing relative to write edges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Depth × Width | 4,096 × 9 bits - provides 4K-word deep buffering with one bit available for parity or control signaling |
| Access Time (tA) | 12 ns max - enables high-speed data transfer up to ~50 MHz shift frequency in commercial/industrial conditions |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V TTL/CMOS logic rails and tolerant of ±10% variation |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments including factory automation and motor control systems |
| Active Power Consumption | 660 mW max - low enough for dense PCB layouts without forced air cooling |
| Status Flags | EF, FF, XO/HF - hardware-generated real-time indicators for empty, full, and half-full conditions to prevent overflow/underflow |
| Retransmit Function | FL/RT pin - resets read pointer to start address on LOW pulse while preserving write pointer position |
Pinout & Package
Package: SOIC-28 (SO28-3), surface-mount, 300 mil width, RoHS-compliant green finish (G8 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D0–D8 | Data Input Bus | 9-bit parallel input path for FIFO loading; latched on falling edge of W |
| Q0–Q8 | Data Output Bus | 9-bit parallel output path; three-state controlled by R (HIGH = high-Z) |
| W | Write Enable | Falling-edge triggered write strobe; inhibited when FF = LOW |
| R | Read Enable | Falling-edge triggered read strobe; inhibited when EF = LOW |
| RS | Reset | Active-LOW synchronous reset of both read and write pointers to address zero |
| FL/RT | First Load / Retransmit | Dual-function: LOW pulse retransmits from start; HIGH enables normal operation |
| EF | Empty Flag | Open-drain output LOW when read pointer = write pointer |
| FF | Full Flag | Open-drain output LOW when FIFO contains 4,096 valid words |
| XO/HF | Expansion Out / Half-Full Flag | In single-device mode: LOW when ≥2,048 words stored; in expansion: pulse signal to next stage |
| XI | Expansion In | GND = single-device mode; tied to XO of prior device in depth expansion |
| VCC, GND | Power Supply | Single 5 V rail; decoupling required per high-speed CMOS layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Asynchronous Dual-Port Operation | Independent read/write clocks not required - eliminates clock domain crossing logic and simplifies interface design |
| Hardware Status Flag Logic | EF, FF, and HF flags generated internally with guaranteed timing - removes need for external pointer tracking or FPGA-based status generation |
| Retransmit Capability | FL/RT pin allows deterministic replay of buffered data without host CPU intervention or memory reload |
| Expandable Architecture | Pin-compatible family (IDT7203–7208) supports depth/width expansion - enables scalable buffer sizing without redesign |
| MIL-STD-883 Qualified Variant | Same functional design available in military-grade version (e.g., IDT7204L12D) - supports drop-in qualification upgrades |
Applications
| Serial Protocol Bridging | Industrial Motion Control |
|---|---|
Use Scenario: Bridging UART-to-USB or RS-485-to-CAN interfaces where transmit/receive rates differ and burst traffic must be absorbed. IC Role / Device Role / Timing Role: Asynchronous FIFO buffer absorbing rate mismatches between host processor and peripheral transceivers. Use Value: Prevents data loss during bus arbitration gaps; enables deterministic latency via EF/FF flag handshaking at 12 ns resolution. | Use Scenario: Buffering position feedback (encoder pulses) and motion command streams in servo drive modules. IC Role / Device Role / Timing Role: Real-time data staging between FPGA motion controller and analog output stage. Use Value: Guarantees no dropped encoder counts under transient load; HF flag triggers preemptive DMA fetch before buffer depletion. |
| Legacy System Interfacing | Test Equipment Data Capture |
Use Scenario: Integrating modern microcontrollers with older parallel-bus peripherals (e.g., ISA-style I/O cards) requiring handshake timing isolation. IC Role / Device Role / Timing Role: Synchronizing asynchronous control signals (STB, ACK) across voltage/logic families using EF/FF handshaking. Use Value: Eliminates metastability risk in level-shifted control paths; 12 ns tA ensures compatibility with 20 MHz ISA timing budgets. | Use Scenario: Capturing high-speed digital stimulus-response sequences in automated test equipment (ATE) pattern generators. IC Role / Device Role / Timing Role: First-stage acquisition buffer capturing bursts from DUT before streaming to DDR memory. Use Value: Enables gapless capture at up to 50 MHz shift rate; retransmit function allows repeat playback of captured waveforms for verification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FIFO memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74V293-12PAG | 4,096 × 18-bit, 12 ns, 3.3 V supply - wider data path, lower voltage, different pinout | Requires level-shifting for 5 V systems; suited for newer 3.3 V designs with wider bus needs | Select when 18-bit width and 3.3 V operation are mandatory; not pin-compatible with IDT7204L12SOG8 |
| IDT7204L15SOG8 | Same 4,096 × 9 organization and SOIC-28 package, but 15 ns access time - relaxed timing, identical footprint | Lower performance margin; suitable where 12 ns is unnecessary and cost optimization is prioritized | Select for cost-sensitive industrial designs where 15 ns timing suffices and existing layout reuse is critical |
Compared with SN74V293-12PAG and IDT7204L15SOG8, the IDT7204L12SOG8 uniquely delivers 12 ns access at 5 V in SOIC-28 while retaining full retransmit and half-full flag functionality - making it optimal for legacy 5 V systems requiring maximum throughput and deterministic replay.
Availability
IDT7204L12SOG8 is available at Aetrix Electronics and suitable for serial protocol bridging, industrial motion control, and legacy system interfacing requiring stable component supply, long-term industrial temperature support, and proven FIFO reliability.
Supply support for IDT7204L12SOG8 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, is a fabless semiconductor company specializing in timing, memory interface, RF, and high-performance interconnect solutions.
The IDT7204L12SOG8 belongs to the IDT720x family of asynchronous FIFOs, designed specifically for rate-matching and data buffering in industrial, communications, and test equipment where deterministic latency and hardware-managed flow control are essential.
FAQ
What is the operating voltage range for the IDT7204L12SOG8?
The IDT7204L12SOG8 operates over a supply voltage range of 4.5 V to 5.5 V, with typical performance specified at 5.0 V ±10%. This 5 V tolerance ensures compatibility with legacy TTL and CMOS logic families and accommodates common power rail variations in industrial power supplies without requiring additional regulation.
Does the IDT7204L12SOG8 support retransmit functionality, and how is it activated?
Yes, the IDT7204L12SOG8 supports retransmit via the FL/RT pin. When FL/RT is pulsed LOW while R and W are HIGH, the internal read pointer resets to address zero without altering the write pointer. This enables deterministic replay of buffered data - a feature confirmed in the datasheet's Signal Descriptions and Truth Tables sections for IDT7204L12SOG8.
What package type is used for the IDT7204L12SOG8, and is it RoHS-compliant?
The IDT7204L12SOG8 uses a SOIC-28 (SO28-3) package, 300 mil width, with green (lead-free) finish indicated by the "G8" suffix. It complies with RoHS Directive 2011/65/EU and is part of IDT's green product initiative, as confirmed in the Ordering Information section of the official datasheet.
How does the Half-Full Flag (XO/HF) behave in the IDT7204L12SOG8?
In the IDT7204L12SOG8, the XO/HF pin functions as the Half-Full Flag when Expansion In (XI) is grounded (Single Device Mode). It goes LOW after the 2,048th write and remains LOW until the difference between write and read pointers falls to ≤2,048 words, then resets on the rising edge of R - behavior explicitly defined in the Signal Descriptions and Figure 9 timing diagram for IDT7204L12SOG8.
Is the IDT7204L12SOG8 pin-compatible with other members of the IDT720x family?
Yes, the IDT7204L12SOG8 is pin- and functionally compatible across the IDT720x family (IDT7203–IDT7208) in the same package variant. This allows direct substitution for depth scaling - e.g., replacing IDT7204L12SOG8 with IDT7205L12SOG8 increases depth to 8,192 × 9 - provided the PCB layout supports the shared SOIC-28 footprint and signal routing.
7204L12SOG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 7200
- Package/Case:
- 28-SOIC (0.345", 8.77mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Size:
- 36K (4K x 9)
- Function:
- Asynchronous
- Data Rate:
- 50MHz
- Access Time:
- 12ns
- 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:
- 0°C ~ 70°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-SOIC
7204L12SOG8 FAQ
1.How can I place an order for 7204L12SOG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7204L12SOG8 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 7204L12SOG8 reliable?
The price and inventory of 7204L12SOG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7204L12SOG8 is usually 5 days.
3.What payment methods are accepted for 7204L12SOG8?
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Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7204L12SOG8?
7204L12SOG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7204L12SOG8 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 7204L12SOG8?
For technical support, including 7204L12SOG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7204L12SOG8 requirements.
6.How does Aetrix verify that 7204L12SOG8 is sourced from the original manufacturer or authorized distributors?
All 7204L12SOG8 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 7204L12SOG8 meets industry standards.
7.What is the process for return or replacement of 7204L12SOG8?
All 7204L12SOG8 units undergo pre-shipment inspection (PSI). If there is an issue with 7204L12SOG8, 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 7204L12SOG8 part is unused and in its original packaging.
Return procedure for 7204L12SOG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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