Renesas 7206L15JG

Overview

IDT7206L15JG from Integrated Device Technology is a 16,384 × 9-bit asynchronous CMOS FIFO buffer with 15 ns access time, industrial temperature range (–40°C to +85°C), and PLCC-32 package. It supports simultaneous read/write, retransmit capability, and status flags (Empty, Full, Half-Full) for data flow control in rate-mismatched systems.

For engineers reviewing the IDT7206L15JG datasheet, IDT7206L15JG pinout, IDT7206L15JG application, or IDT7206L15JG equivalent, this page delivers verified timing specs, flag behavior, expansion modes, power consumption (660 mW active max), and real-world use cases in multiprocessing and serial interface buffering.

Technical Context

The IDT7206L15JG implements a dual-port, pointer-based FIFO architecture with independent read/write address counters and full/empty/half-full flag logic. Its 9-bit data width includes one bit for parity or control, and it supports retransmit (RT) to reset the read pointer without affecting the write pointer.

It operates in Single Device Mode (XI grounded) or Depth Expansion Mode (XO→XI daisy-chain), with external logic required for composite flags in expansion. The device uses high-speed CMOS and complies with MIL-STD-883 Class B for military-grade variants - though IDT7206L15JG is industrial-grade PLCC.

Key Specifications

Pinout & Package

Package: 32-lead Plastic Leaded Chip Carrier (PLCC), J-lead variant (JG suffix), body size 13.1 mm × 13.1 mm, gull-wing leads, RoHS-compliant green finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74V293-15PAG and IDT7206L20JG, the IDT7206L15JG delivers optimal balance of speed (15 ns), industrial temp rating, and proven field reliability - making it ideal for legacy system refreshes where timing closure is constrained but upgrade risk must be minimized.

Availability

IDT7206L15JG is available at Aetrix Electronics and suitable for industrial serial interface buffering, real-time data acquisition systems, multiprocessor interconnect bridges, and legacy bus protocol translators requiring stable component supply across extended production lifecycles.

Supply support for IDT7206L15JG 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 IDT7206L15JG belongs to the IDT720x family of asynchronous FIFOs, designed specifically for robust, low-latency data buffering in mixed-clock-domain systems such as telecom infrastructure, test equipment, and industrial control.

FAQ

What is the memory organization of the IDT7206L15JG?

The IDT7206L15JG features a 16,384 × 9-bit asynchronous FIFO memory array, providing 147,456 bits of total storage. This configuration supports 9-bit words - eight data bits plus one parity or control bit - and is optimized for byte-aligned serial protocols and industrial I/O expansion. The IDT7206L15JG uses internal pointers to manage first-in/first-out data flow without external address logic.

Does the IDT7206L15JG support retransmit functionality, and how is it used?

Yes, the IDT7206L15JG supports retransmit via the FL/RT pin. When pulsed LOW, it resets the internal read pointer to location zero while leaving the write pointer unchanged - enabling repeat reads of the current buffer contents. This is essential for protocol retries or waveform replay. The IDT7206L15JG requires R and W to remain HIGH during the retransmit pulse, and the feature is disabled in depth expansion mode.

What are the key timing parameters for read and write operations on the IDT7206L15JG?

At 15 ns access time, the IDT7206L15JG specifies t_A ≤ 15 ns, t_RC ≤ 25 ns, t_WC ≤ 25 ns, t_RPW ≥ 15 ns, and t_WPW ≥ 15 ns. Read recovery (t_RR) and write recovery (t_WR) are both ≤ 10 ns. These values ensure reliable operation up to 33 MHz shift frequency in industrial temperature conditions, with setup/hold times (e.g., t_DS = 11 ns) defined relative to R/W edges.

Can multiple IDT7206L15JG devices be connected for larger memory depth?

Yes, the IDT7206L15JG supports depth expansion via daisy-chaining: XO of one device connects to XI of the next, with FL/RT grounded on the first device and pulled HIGH on subsequent units. Composite EF/FF flags require external OR logic. The IDT7206L15JG retains all timing and functional specs in this mode, though retransmit and half-full flag functions are disabled per device.

Is the IDT7206L15JG pin-compatible with other members of the IDT720x family?

Yes, the IDT7206L15JG is fully pin- and function-compatible with the entire IDT720x family (IDT7203–IDT7208) in the same PLCC-32 package. This includes identical pinout, flag behavior, control signals, and expansion logic - allowing seamless migration between 2k×9 and 64k×9 densities without PCB redesign. The IDT7206L15JG differs only in memory depth and speed grade.