Renesas 7203L15JGI8

Overview

IDT7203L15JGI8 from Integrated Device Technology is a 2,048 x 9-bit asynchronous CMOS FIFO memory buffer with 15 ns access time, industrial temperature range (–40°C to +85°C), and PLCC-32 package. It supports simultaneous 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 data rate matching.

For engineers reviewing the IDT7203L15JGI8 datasheet, IDT7203L15JGI8 pinout, IDT7203L15JGI8 application, or IDT7203L15JGI8 equivalent, key selection criteria include its 9-bit data width with parity/control bit option, 120 mA max active supply current, dual-purpose FL/RT and XO/HF pins, and compatibility with depth/width expansion architectures for scalable buffering.

Technical Context

The IDT7203L15JGI8 implements a first-in/first-out dual-port memory architecture using high-speed CMOS technology, with independent read and write pointers managed by internal logic. Its asynchronous operation allows independent clock domains on R and W inputs, eliminating synchronization overhead in multi-processor or mixed-speed interface designs.

Status flag generation (EF, FF, XO/HF) is tightly coupled to pointer positions and edge-triggered control signals (RS, RT, XI). The device supports three operating modes-Single Device, Depth Expansion, and Width Expansion-with FL/RT and XI pins determining mode configuration and enabling cascaded FIFO arrays up to 196,608 x 9 bits.

Key Specifications

Pinout & Package

Package: 32-lead Plastic Leaded Chip Carrier (PLCC), J32-1 code, body size 13.8 mm × 13.8 mm, 1.27 mm pitch, JEDEC MS-026 compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar FIFO memory applications.

Compared with SN74ACT2227N and ICS650MI-15LF, the IDT7203L15JGI8 uniquely combines industrial temperature operation, 9-bit width with parity flexibility, retransmit capability, and PLCC packaging - making it the only option qualified for ruggedized embedded buffering where reliability and feature completeness are mandatory.

Availability

IDT7203L15JGI8 is available at Aetrix Electronics and suitable for serial protocol bridging, data rate matching, and multiprocessor communication requiring stable component supply across industrial temperature ranges and long production lifecycles.

Supply support for IDT7203L15JGI8 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 real-time interconnect solutions for communications, computing, and industrial markets.

The IDT7203L15JGI8 belongs to the IDT720x family of asynchronous FIFOs, designed specifically for deterministic, low-latency data buffering in mixed-clock-domain systems where hardware-managed flow control is critical.

FAQ

What is the maximum operating frequency supported by the IDT7203L15JGI8?

The IDT7203L15JGI8 supports a maximum shift frequency of 33.3 MHz under industrial temperature conditions, derived from its 15 ns access time specification. This frequency assumes proper setup/hold timing compliance and is validated for continuous operation across –40°C to +85°C. The device does not require an external clock; timing is controlled by R and W signal edges.

Does the IDT7203L15JGI8 support retransmission of data, and how is it activated?

Yes, the IDT7203L15JGI8 supports retransmission via the FL/RT pin. When FL/RT is pulsed LOW while R and W are HIGH, the internal read pointer resets to the first memory location without altering the write pointer. This enables data replay for protocol recovery or debugging. Retransmit is disabled in depth expansion mode per datasheet Section 6.

What is the function of the XO/HF pin on the IDT7203L15JGI8?

The XO/HF pin on the IDT7203L15JGI8 is dual-function: in Single Device Mode (XI grounded), it outputs the Half-Full Flag (HF), going LOW when ≥50% of memory is filled; in Depth Expansion Mode (XI tied to prior XO), it outputs an Expansion Out pulse signaling boundary crossing to the next device in the chain.

Can the IDT7203L15JGI8 be used in width-expansion configurations, and what are the constraints?

Yes, the IDT7203L15JGI8 supports width expansion by connecting corresponding control signals (R, W, RS, FL/RT) across multiple devices while keeping data buses independent. Status flags (EF, FF, HF) may be monitored from any one device. Critical constraint: outputs must never be wired together - each device drives its own Q0–Q8 bus exclusively.

Is the IDT7203L15JGI8 RoHS-compliant, and what is its lead finish?

The IDT7203L15JGI8 uses a lead-free (Pb-free) finish compliant with RoHS Directive 2011/65/EU. Per IDT ordering information, the "G" suffix denotes green (halogen-free, Pb-free) construction. Legacy SnPb versions are discontinued; this part is manufactured exclusively with environmentally compliant terminations.