Renesas 72V03L15JG8

Overview

IDT72V03L15JG8 from Renesas Electronics (formerly IDT) is a 3.3 V CMOS asynchronous FIFO memory with 2,048 × 9-bit depth and width, 15 ns access time, industrial temperature range (–40°C to +85°C), and 32-pin PLCC package. It supports simultaneous read/write, auto-retransmit, and status flags (Empty, Full, Half-Full), used in rate-matching buffers between mismatched data streams in telecom and embedded control systems.

For engineers reviewing the IDT72V03L15JG8 datasheet, IDT72V03L15JG8 pinout, IDT72V03L15JG8 application, or IDT72V03L15JG8 equivalent, key selection criteria include its 15 ns t_A, 2,048-word depth, dual-port asynchronous operation, low-power active/standby current (60 mA / 5 mA), and compatibility with 720x-family timing interfaces.

Technical Context

This FIFO implements ring-pointer-based sequential data flow without external address lines, using independent write (W) and read (R) strobes to toggle data in/out of a 2,048 × 9-bit RAM array. Its architecture supports single-device mode (XI grounded) and depth/width expansion via XO/HF and FL/RT pins.

All timing parameters-including t_A = 15 ns, t_RC = 25 ns, t_WC = 25 ns, and t_RS = 15 ns-are specified at V_CC = 3.3 V ± 0.3 V across –40°C to +85°C, with VIH = 2.0 V min and VOL = 0.4 V max under I_OL = 8 mA load conditions.

Key Specifications

Pinout & Package

Package: 32-pin Plastic Leaded Chip Carrier (PLCC), J32-1 outline, SnPb lead finish (EOL as of June 15, 2018).

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72V03L15JG8, the IDT72V03L25JG8 offers identical functionality at reduced speed and potentially lower cost, while the SN74V283-15PAG requires board-level redesign and loses key features like retransmit and half-full indication-making it a functional alternative only with engineering trade-offs.

Availability

IDT72V03L15JG8 is available at Aetrix Electronics and suitable for telecom data buffering, industrial PLC communication interfaces, medical imaging pipelines, and test equipment pattern memory requiring stable component supply and long-term industrial-grade reliability.

Supply support for IDT72V03L15JG8 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 delivering microcontrollers, analog, power, and memory solutions for automotive, industrial, infrastructure, and IoT applications.

IDT72V03L15JG8 belongs to Renesas' legacy IDT asynchronous FIFO product line, designed specifically for high-reliability, low-latency data buffering in mixed-timing-domain systems where clock domain crossing and burst mitigation are critical.

FAQ

What is the memory organization of the IDT72V03L15JG8?

The IDT72V03L15JG8 implements a 2,048 × 9-bit first-in/first-out memory array. This means it stores 2,048 words, each 9 bits wide-supporting 8-bit data plus 1 parity or control bit. The architecture uses internal ring pointers, eliminating the need for external address generation logic during read/write operations.

Does the IDT72V03L15JG8 support retransmission of stored data?

Yes, the IDT72V03L15JG8 supports retransmission via its FL/RT pin. When configured in single-device mode (XI grounded), pulsing FL/RT low resets the internal read pointer to the first memory location while leaving the write pointer unchanged. This enables repeated reading from the start without reloading data-useful in protocol retry or test pattern replay scenarios.

What is the operating temperature range for the IDT72V03L15JG8?

The IDT72V03L15JG8 is rated for industrial temperature operation from –40°C to +85°C. All DC and AC electrical specifications-including 15 ns access time, 60 mA active current, and flag timing-are guaranteed across this full range when powered at V_CC = 3.3 V ± 0.3 V.

Can multiple IDT72V03L15JG8 devices be cascaded for greater depth?

Yes, the IDT72V03L15JG8 supports depth expansion via its XI and XO/HF pins. By connecting XO of one device to XI of the next and grounding FL on the first device, users can build FIFOs with arbitrary depth (e.g., 6,144 × 9 using three devices). Note that EF/FF must be OR-combined externally, and HF/RT functions are disabled in depth expansion mode.

Is the IDT72V03L15JG8 pin-compatible with older 5 V FIFOs like the IDT7203?

No, the IDT72V03L15JG8 is not pin-compatible with the 5 V IDT7203. While functionally compatible (same pin functions and logic behavior), it operates at 3.3 V only and uses different voltage thresholds (VIH = 2.0 V min vs. 5 V TTL levels). Direct replacement requires level-shifting or redesign-though PCB layout may be reused if PLCC-32 footprint matches.