Renesas 72V223L7-5BC

Overview

72V223L7-5BC from Integrated Device Technology is a 3.3 V, high-density SuperSync II™ narrow bus FIFO memory with 512 × 18 or 1,024 × 9 organization, supporting up to 166 MHz clock operation, x9/x18 bus-matching on both read and write ports, and configurable IDT Standard or First Word Fall Through (FWFT) timing modes. It serves as a depth- and width-expandable data buffer in network packet processing, video frame synchronization, and telecom line interface units.

For engineers reviewing the 72V223L7-5BC datasheet, 72V223L7-5BC pinout, 72V223L7-5BC application, or 72V223L7-5BC equivalent, key selection considerations include its dual-clock asynchronous/synchronous port flexibility, programmable almost-empty/almost-full flags with eight default offsets, zero-latency retransmit capability, and BGA-specific JTAG boundary scan support.

Technical Context

The 72V223L7-5BC implements independent synchronous/asynchronous read and write ports controlled by RCLK/RD and WCLK/WR respectively, with no frequency ratio constraint between clocks. Its RAM array supports flexible bus-matching via IW and OW pins during master reset, enabling x9↔x9, x9↔x18, x18↔x9, or x18↔x18 configurations.

Flag logic includes EF/OR, FF/IR, HF, PAE, and PAF outputs, with PAE/PAF programmable via serial (SEN+LD+WCLK) or parallel (WEN+LD+WCLK) methods and configurable synchronous/asynchronous timing via PFM. Retransmit (RT) with zero-latency mode (RM-controlled) and Big-Endian/Little-Endian data formatting (BE-controlled) further define its real-time buffering behavior.

Key Specifications

Pinout & Package

72V223L7-5BC is housed in a 100-pin Ball Grid Array (BGA) package with 1 mm pitch and 11 mm × 11 mm footprint, featuring dedicated JTAG (TCK/TMS/TDO/TDI/TRST), asynchronous port control (ASYR/ASYW), and flag configuration pins (FSEL0/FSEL1/PFM/IP) not present in TQFP variants.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72V233L7-5BC and IDT72V255LA-5PF, the 72V223L7-5BC uniquely balances industrial temperature support, BGA-based JTAG testability, and full asynchronous port configurability within its 512-word class - making it optimal for space-constrained, test-critical industrial gateways.

Availability

72V223L7-5BC is available at Aetrix Electronics and suitable for network packet buffering, video frame synchronization, telecom line interface units, and industrial protocol gateways requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 72V223L7-5BC 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 sensor signal conditioning solutions for communications, computing, and industrial markets.

The IDT72V2xx family was designed to deliver high-density, low-latency, multi-mode FIFO buffering for systems requiring clock domain crossing, bus-width adaptation, and real-time data streaming - particularly in networking and video infrastructure.

FAQ

What memory organization does the 72V223L7-5BC support?

The 72V223L7-5BC supports two configurable memory organizations: 512 words × 18 bits or 1,024 words × 9 bits. This dual-mode architecture is selected at master reset using the IW (Input Width) and OW (Output Width) pins, enabling flexible bus-matching between x9 and x18 interfaces without external logic. The 72V223L7-5BC does not support larger depths like 2K or 4K - those are implemented in higher-numbered variants such as 72V233L7-5BC or 72V243L7-5BC.

Does the 72V223L7-5BC support asynchronous read and write operations?

Yes, the 72V223L7-5BC supports user-selectable asynchronous operation on both read and write ports - but only in the BGA package. During master reset, ASYR = LOW configures asynchronous read (using RD strobe), and ASYW = LOW configures asynchronous write (using WR strobe). When enabled, asynchronous mode requires the FIFO to operate in IDT Standard timing mode, and OE must be used for output tri-state control. This capability is absent in TQFP-packaged variants.

How is the First Word Fall Through (FWFT) mode configured on the 72V223L7-5BC?

FWFT mode is selected by driving the FWFT/SI pin LOW during master reset (MRS assertion). Once configured, FWFT mode causes the first word written to an empty FIFO to appear on the Q-bus after exactly three RCLK rising edges - without requiring REN activation. Subsequent reads still require REN assertion. The 72V223L7-5BC retains this setting until next MRS; PRS does not alter the timing mode. FWFT reduces effective latency in display and audio streaming applications.

What JTAG functionality does the 72V223L7-5BC provide?

The 72V223L7-5BC includes a fully compliant IEEE 1149.1 JTAG boundary scan interface accessible only on its BGA package via TCK, TMS, TDO, TDI, and TRST pins. This enables automated PCB test, interconnect verification, and in-system debugging without requiring physical probe access. JTAG operation is independent of FIFO functional mode and remains active even during power-down states. The TQFP variant lacks these pins entirely.

Can the 72V223L7-5BC be used in industrial temperature environments?

Yes, the 72V223L7-5BC is rated for industrial temperature operation from –40°C to +85°C, as confirmed in the device's DC electrical characteristics table and ordering information. It uses high-performance submicron CMOS technology and meets JEDEC JESD8-A compliance at 3.3 V supply. This makes the 72V223L7-5BC suitable for deployment in base stations, industrial gateways, and outdoor video encoders where ambient thermal stress exceeds commercial grade limits.