My Inquiry
My Account
Renesas 7200L12SOG8
- Part No.:
- 7200L12SOG8
- Manufacturer:
- Renesas
- Category:
- FIFOs Memory
- Package:
- 28-SOIC (0.345", 8.77mm Width)
- Datasheet:
-
7200L12SOG8.pdf
- Description:
- IC FIFO ASYNC 256X9 12NS 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,256
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
IDT7200L12SOG8 from Renesas Electronics (formerly IDT) is a 256 × 9-bit asynchronous CMOS FIFO memory IC designed for rate-matching, data buffering, and protocol bridging in dual-clock domain systems. It features 12 ns access time, ultra-low active power (440 mW max), and status flags (Empty, Full, Half-Full) for overflow/underflow protection - deployed in industrial communications controllers and legacy military avionics interfaces.
For engineers reviewing the IDT7200L12SOG8 datasheet, IDT7200L12SOG8 pinout, IDT7200L12SOG8 application, or IDT7200L12SOG8 equivalent, key selection criteria include its 9-bit data width with parity support, retransmit capability for error recovery, single-device or expandable depth/width configurations, and compliance with MIL-STD-883 Class B for harsh-environment operation.
Technical Context
This FIFO implements ring-pointer-based sequential read/write without external address logic, using independent W (write) and R (read) control lines to enable true asynchronous, simultaneous operations. Its internal RAM array is organized as 256 × 9 bits, with dedicated flag logic generating EF, FF, and XO/HF outputs based on pointer comparison.
The device supports three operating modes: Single Device (XI grounded), Depth Expansion (daisy-chained via XI/XO), and Width Expansion (parallel data buses). Retransmit (RT) resets the read pointer to zero without affecting the write pointer - critical for deterministic retransmission in serial link protocols.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 256 × 9-bit (2,304 bits total); supports parity bit insertion in 9-bit bus |
| Access Time (tA) | 12 ns max - enables ≤50 MHz shift frequency in commercial/industrial temp ranges |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V TTL/CMOS logic families |
| Power Consumption | Active: 440 mW max (80 mA @ 5 V); Power-down: 28 mW max (5 mA) |
| Operating Temperature | –40°C to +85°C - industrial grade; also available in military (–55°C to +125°C) variant |
| Status Flags | EF (Empty), FF (Full), XO/HF (Half-Full or Expansion Out) - real-time buffer occupancy monitoring |
| Retransmit Function | Pulse RT low to reset read pointer to start - enables deterministic data replay without write interruption |
Pinout & Package
Package: 28-pin SOIC (SO28-3), surface-mount, green (Pb-free) compliant, 300 mil width.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| W | Write Enable Input | Falling-edge-triggered write strobe; initiates storage of D0–D8 into FIFO when FF = HIGH |
| R | Read Enable Input | Falling-edge-triggered read strobe; outputs Q0–Q8 when EF = HIGH |
| D0–D8 | Data Inputs | 9-bit parallel input bus; supports parity bit assignment per system requirement |
| Q0–Q8 | Data Outputs | 3-state outputs enabled only during active read; high-impedance when R = HIGH |
| RS | Reset Input | Active-low synchronous reset; sets both read/write pointers to location zero at power-up |
| FL/RT | First Load / Retransmit Input | In single mode: RT input; pulse LOW to reset read pointer. In depth expansion: FL select for first device |
| EF | Empty Flag Output | Open-drain output LOW when read pointer = write pointer - prevents underflow reads |
| FF | Full Flag Output | Open-drain output LOW when write pointer = (read pointer – 1) mod 256 - prevents overflow writes |
| XO/HF | Expansion Out / Half-Full Flag | In single mode: HF output LOW when ≥128 locations filled. In depth expansion: daisy-chain signal to next device |
| XI | Expansion In Input | Grounded for single-device mode; tied to XO of prior device in depth expansion chain |
| VCC, GND | Power Supply | Single 5 V supply; decoupling required per high-speed CMOS layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Asynchronous Dual-Port Operation | Independent W and R clocks allow seamless data transfer between mismatched timing domains (e.g., UART ↔ microcontroller) |
| Expandable Architecture | Depth expansion (up to 64k × 9 via daisy-chain) and width expansion (e.g., 256 × 18 using two devices) without external address logic |
| Retransmit Capability | RT pulse resets read pointer to zero while preserving write pointer - essential for ARQ protocols and deterministic replay |
| 9-Bit Data Bus with Parity Support | Extra bit enables hardware parity generation/checking in serial communication links (e.g., RS-422/485, MIL-STD-1553) |
| MIL-STD-883 Class B Compliance | Qualified for military applications including avionics and ground vehicle systems requiring extended temperature and reliability validation |
Applications
| Industrial Serial Gateway | Military Avionics Interface |
|---|---|
Use Scenario: Buffering data between a 1 Mbps RS-422 fieldbus and a 25 MHz ARM-based controller with non-aligned clock domains. IC Role / Device Role / Timing Role: Asynchronous FIFO providing clock domain isolation and burst absorption during CPU interrupt latency. Use Value: Eliminates data loss during variable-latency software servicing; 256-word depth accommodates worst-case 10 ms interrupt delay at 1 Mbps. |
Use Scenario: Interfacing a MIL-STD-1553B remote terminal (RT) to a mission computer with deterministic retransmission requirements. IC Role / Device Role / Timing Role: Rate-matching FIFO with RT-triggered pointer reset for guaranteed message replay after CRC failure. Use Value: Enables hardware-level retransmission within <12 ns timing budget; avoids software intervention and latency jitter. |
| Legacy Telecom Line Card | Test Equipment Data Capture |
Use Scenario: Capturing T1/E1 frame sync pulses and payload in telecom line interface cards with jitter-prone clock sources. IC Role / Device Role / Timing Role: Synchronizing incoming framed data to local system clock using EF/FF handshaking. Use Value: Prevents frame slip during clock drift; Half-Full flag triggers early DMA fetch to minimize buffer management overhead. |
Use Scenario: High-speed digital pattern capture in ATE systems where stimulus and response must be time-correlated across independent clocks. IC Role / Device Role / Timing Role: Dual FIFO pair (read/write flow-through mode) enabling real-time stimulus-response loopback with sub-20 ns latency. Use Value: Achieves deterministic 12 ns access time for pass/fail decision logic - critical for production test throughput. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FIFO memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MC100E131FN | ECL-based 256 × 9 FIFO; 3.3 V supply; 2.5 ns access time; requires negative bias supply | Better speed but higher power and complex biasing; suited for RF test equipment, not industrial controllers | Select only if sub-5 ns timing and ECL compatibility are mandatory; not drop-in for 5 V systems |
| Renesas IDT7202LA25SOG8 | 1,024 × 9 organization; 25 ns access time; same SOIC-28 package and pinout; higher depth, slower speed | Same footprint and control logic; ideal for applications needing >256-word buffering without redesign | Drop-in upgrade path when deeper buffering is required; retains identical interface and flag behavior |
Compared with IDT7200L12SOG8, MC100E131FN delivers faster timing but demands ECL infrastructure and consumes ~5× more power, whereas IDT7202LA25SOG8 offers 4× memory depth with identical pinout and control semantics - making it the preferred migration for capacity-limited designs.
Availability
IDT7200L12SOG8 is available at Aetrix Electronics and suitable for industrial communications gateways, military avionics interfaces, legacy telecom line cards, and automated test equipment requiring stable component supply amid end-of-life transitions.
Supply support for IDT7200L12SOG8 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
Renesas Electronics Corporation is a global semiconductor leader formed from the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, power, and timing solutions.
IDT7200L12SOG8 belongs to the legacy IDT72xx family of asynchronous FIFOs, engineered for robust, low-latency data buffering in mission-critical industrial and defense systems where clock domain isolation and deterministic retransmission are essential.
FAQ
What is the memory depth and data width of the IDT7200L12SOG8?
IDT7200L12SOG8 provides a fixed 256 × 9-bit memory organization - 256 words of 9-bit data. The ninth bit supports parity generation or control signaling, making it suitable for error-checked serial protocols. This configuration is immutable; depth expansion requires cascading multiple IDT7200L12SOG8 units using XI/XO signals.
Does the IDT7200L12SOG8 support retransmission, and how is it triggered?
Yes, IDT7200L12SOG8 supports hardware retransmission via the FL/RT pin. When operated in Single Device Mode (XI grounded), pulsing RT LOW resets the internal read pointer to location zero while leaving the write pointer unchanged. This enables deterministic replay of buffered data - critical for ARQ protocols - without disrupting ongoing write operations.
What package type and lead finish does the IDT7200L12SOG8 use?
IDT7200L12SOG8 is supplied in a 28-pin SOIC (SO28-3) package with green (Pb-free) lead finish, compliant with RoHS Directive 2011/65/EU. It replaces legacy SnPb versions discontinued per PDN# SP-17-02, with last-time-buy expired June 15, 2018. No leaded variants are currently available.
Can the IDT7200L12SOG8 be used in military temperature applications?
No - IDT7200L12SOG8 is rated for industrial temperature range (–40°C to +85°C) only. Military-grade operation (–55°C to +125°C) requires alternate part numbers such as IDT7200L12D (CERDIP) or IDT7200L12TD (Thin CERDIP), which are MIL-STD-883 Class B qualified and listed under Standard Military Drawings 5962-87531 and 5962-89536.
How does the Half-Full Flag (XO/HF) function in IDT7200L12SOG8?
In Single Device Mode (XI = GND), the XO/HF pin functions as the Half-Full Flag and goes LOW after the 128th write operation - indicating ≥50% buffer occupancy. It remains LOW until the difference between write and read pointers falls to ≤128, then resets HIGH on the rising edge of the next read. This enables proactive DMA or interrupt triggering before full saturation.
7200L12SOG8 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:
- 2.25K (256 x 9)
- Function:
- Asynchronous
- Data Rate:
- 50MHz
- Access Time:
- 12ns
- Voltage - Supply:
- 4.5 V ~ 5.5 V
- Current - Supply (Max):
- 80mA
- 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
7200L12SOG8 FAQ
1.How can I place an order for 7200L12SOG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 7200L12SOG8 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 7200L12SOG8 reliable?
The price and inventory of 7200L12SOG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7200L12SOG8 is usually 5 days.
3.What payment methods are accepted for 7200L12SOG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7200L12SOG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7200L12SOG8?
7200L12SOG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7200L12SOG8 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 7200L12SOG8?
For technical support, including 7200L12SOG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7200L12SOG8 requirements.
6.How does Aetrix verify that 7200L12SOG8 is sourced from the original manufacturer or authorized distributors?
All 7200L12SOG8 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 7200L12SOG8 meets industry standards.
7.What is the process for return or replacement of 7200L12SOG8?
All 7200L12SOG8 units undergo pre-shipment inspection (PSI). If there is an issue with 7200L12SOG8, 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 7200L12SOG8 part is unused and in its original packaging.
Return procedure for 7200L12SOG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7200L12SOG8 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…
