Texas Instruments SN74V273-10GGM

Overview

SN74V273-10GGM from Texas Instruments is a 16384 × 18 / 32768 × 9, 3.3-V CMOS first-in, first-out (FIFO) memory with independent read/write clocks, 166-MHz operation, 6-ns read/write cycle time, and user-selectable ×9/×18 bus sizing - deployed in high-throughput DSP interfacing and telecom data buffering.

For engineers reviewing the SN74V273-10GGM datasheet, SN74V273-10GGM pinout, SN74V273-10GGM application, or SN74V273-10GGM equivalent, key selection criteria include FWFT vs. standard timing mode configuration, programmable almost-empty/full flag offsets, big/little-endian byte ordering, zero-latency retransmit capability, and 5-V-tolerant input compatibility with legacy logic interfaces.

Technical Context

This FIFO implements dual-clock asynchronous architecture with fully independent RCLK and WCLK domains operating up to 166 MHz, enabling simultaneous read/write without arbitration. Its RAM array supports two configurable memory organizations: 16384 × 18 (32,768 words × 9-bit) or 32768 × 9 (32,768 words × 9-bit), selected via IW/OW pins during master reset.

Flag logic includes five status outputs - EF/OR, FF/IR, HF, PAE, PAF - with PAE/PAF programmable via serial or parallel loading of 8-bit offset registers. Retransmit functionality resets the read pointer to address zero on RT assertion, with latency mode (zero or normal) set by RM pin at master reset.

Key Specifications

Pinout & Package

SN74V273-10GGM is packaged in a 100-pin ball grid array (BGA) with GGM suffix, compliant with JEDEC MO-220, 12 mm × 12 mm body size, 0.8 mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72V273 and NB3N502, SN74V273-10GGM uniquely combines 16K-word depth, 5-V-tolerant inputs, zero-latency retransmit, and fully programmable PAE/PAF flags - making it the only option for robust, mixed-voltage, high-reliability data streaming in telecom and DSP infrastructure.

Availability

SN74V273-10GGM is available at Aetrix Electronics and suitable for network packet buffering, DSP data interfacing, and video frame synchronization requiring stable component supply across long-lifecycle industrial deployments.

Supply support for SN74V273-10GGM 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with over 90 years of innovation in high-performance timing and interface ICs.

The SN74V273-10GGM belongs to TI's high-speed FIFO memory product line, engineered specifically for low-latency, high-bandwidth data buffering in DSP, telecom, and video infrastructure where clock domain isolation and deterministic timing are critical.

FAQ

What memory organization does SN74V273-10GGM support?

SN74V273-10GGM supports two selectable configurations: 16384 × 18 (16K words × 18 bits) or 32768 × 9 (32K words × 9 bits), determined by the states of IW and OW pins during master reset. This dual-organization flexibility allows optimal matching to asymmetric data paths in systems such as TI C6000 DSP interfaces and TDM telecom controllers - and the SN74V273-10GGM maintains full 166-MHz operation in both modes.

Does SN74V273-10GGM support 5-V logic inputs?

Yes, SN74V273-10GGM features 5-V-tolerant inputs on all control and data pins (WEN, REN, WCLK, RCLK, D0–D17, etc.), allowing direct connection to 5-V TTL or CMOS logic without external level shifters. This capability is explicitly confirmed in the SCAS669D datasheet and makes SN74V273-10GGM ideal for upgrading legacy 5-V systems to 3.3-V core operation - a key advantage over alternatives like IDT72V273 which require voltage translation. The SN74V273-10GGM retains full functionality at 3.3-V VCC while accepting 5-V signaling.

How does the First-Word Fall-Through (FWFT) mode work in SN74V273-10GGM?

In FWFT mode - enabled by asserting FWFT/SI high during master reset - the first word written to an empty SN74V273-10GGM appears on Q0–Q17 outputs after exactly three RCLK rising edges, without requiring REN assertion. Subsequent words still require REN activation. This eliminates initial read latency in burst-oriented applications like packet header extraction or DSP instruction prefetching. The SN74V273-10GGM's FWFT behavior is deterministic and independent of clock frequency, and OR/IR flags replace EF/FF to indicate data readiness and space availability.

Can SN74V273-10GGM be used for zero-latency retransmission?

Yes, SN74V273-10GGM supports zero-latency retransmit when RM is held low during master reset. In this mode, asserting RT low on a rising RCLK edge causes the first retransmitted word to appear on Q outputs synchronized to that same RCLK edge - no additional clock cycles are needed. This feature is critical for real-time protocol recovery and deterministic retry sequences. The SN74V273-10GGM implements this via dedicated internal pointer reset logic that bypasses normal read pipeline stages, and it operates identically in both FWFT and standard timing modes.

What packaging options are available for SN74V273-10GGM?

SN74V273-10GGM is exclusively offered in a 100-pin plastic ball grid array (PBGA) package with GGM suffix - JEDEC MO-220 compliant, 12 mm × 12 mm body, 0.8 mm ball pitch, and Pb-free (RoHS-compliant) construction. This BGA variant provides superior thermal performance and signal integrity for high-speed 166-MHz operation compared to the 80-pin TQFP option used by other family members (e.g., SN74V273-10PZ). The SN74V273-10GGM's GGM package is optimized for dense, high-layer-count PCBs common in telecom line cards and DSP carrier boards.