Renesas 7203L15JGI

Overview

IDT7203L15JGI 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 pointer reset-used in rate-matching interfaces between mismatched clock domains in industrial control and communications systems.

For engineers reviewing the IDT7203L15JGI datasheet, IDT7203L15JGI pinout, IDT7203L15JGI application, or IDT7203L15JGI equivalent, key selection criteria include its 15 ns access time, 9-bit data width with parity option, dual-port asynchronous operation, industrial-grade reliability, and compatibility within the IDT720x family for depth/width expansion.

Technical Context

The IDT7203L15JGI 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 interface requires no common clock, enabling seamless data transfer between independent bus systems.

Status flag generation (EF, FF, XO/HF) is synchronized to control signal edges-not clocks-and the Retransmit (RT) function resets only the read pointer while preserving the write pointer, supporting repeat-read protocols without data loss or external address management.

Key Specifications

Pinout & Package

Package: 32-pin Plastic Leaded Chip Carrier (PLCC), J-lead, body size 11.43 mm × 13.97 mm, compliant with JEDEC MS-026.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74V293-15PAG and IDT7203L15PGI, the IDT7203L15JGI uniquely combines PLCC-32 surface-mount compatibility, industrial temperature rating, and dedicated retransmit functionality-making it optimal for space-constrained, high-reliability embedded systems requiring repeat-read capability.

Availability

IDT7203L15JGI is available at Aetrix Electronics and suitable for industrial motion control, telecom line card buffering, and medical imaging data acquisition requiring stable component supply across extended product lifecycles.

Supply support for IDT7203L15JGI 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 IDT7203L15JGI belongs to the IDT720x family of asynchronous FIFOs, designed specifically for rate-matching and data buffering in mixed-clock-domain systems across industrial, telecom, and test equipment applications.

FAQ

What is the maximum operating frequency supported by the IDT7203L15JGI?

The IDT7203L15JGI does not operate on a clock signal-it is asynchronous. Its performance is defined by access time (15 ns max) and shift frequency (33.3 MHz max under specified conditions). This means it supports effective data throughput up to ~33 million words per second when interfaced with appropriately timed control signals, not a fixed system clock.

Does the IDT7203L15JGI support power-down mode, and how much current does it draw?

Yes, the IDT7203L15JGI supports power-down mode when R = W = RS = FL/RT = VIH. In this state, ICC3 is guaranteed ≤2 mA (10 mW at 5 V), making it suitable for low-power standby in battery-backed or energy-conscious industrial systems. Full functionality resumes within nanoseconds upon exit from power-down.

How does the Half-Full Flag (XO/HF) behave in single-device mode on the IDT7203L15JGI?

In single-device mode (XI grounded), the XO/HF pin functions as an active-LOW Half-Full Flag. It asserts LOW after half the memory (1,024 words) is written and remains asserted until the difference between write and read pointers falls to ≤1,024. It deasserts on the rising edge of the next read operation-providing early warning for flow control before Full/Empty thresholds are reached.

Can the IDT7203L15JGI be used in depth-expansion configurations, and what limitations apply?

Yes, the IDT7203L15JGI supports depth expansion by cascading multiple units via XI/XO connections. However, in depth-expansion mode, the Retransmit (RT) function and Half-Full Flag (HF) are disabled. Composite EF/FF must be generated externally using OR logic across all devices' flags, and FL/RT must be configured as First Load for the first device and HIGH for others.

Is the IDT7203L15JGI pin-compatible with other members of the IDT720x family?

Yes-the entire IDT720x family (IDT7203 through IDT7208) is pin- and functionally compatible across all packages and speed grades. The IDT7203L15JGI shares identical PLCC-32 pinout, control interface, and flag behavior with IDT7204L15JGI, IDT7205L15JGI, etc., differing only in memory depth (2K vs 4K vs 8K, etc.), allowing drop-in upgrades without PCB changes.