Texas Instruments SN74V273-6GGM

Overview

SN74V273-6GGM from Texas Instruments is a 16384 × 18 / 32768 × 9 high-speed CMOS FIFO memory with independent 3.3-V read/write clocks, 6-ns cycle time, and user-selectable ×9/×18 bus sizing - deployed in network buffering, DSP interfacing, and video data stream alignment where depth and low-latency retransmit are critical.

For engineers reviewing the SN74V273-6GGM datasheet, SN74V273-6GGM pinout, SN74V273-6GGM application, or SN74V273-6GGM 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 mixed-voltage systems.

Technical Context

This FIFO implements dual-clock asynchronous operation with fully independent RCLK and WCLK (0–166 MHz), enabling simultaneous read/write without arbitration logic. Its architecture supports configurable bus-matching via IW/OW pins and includes dedicated hardware for first-word fall-through (FWFT) timing with fixed 3-cycle latency to Q outputs.

Flag generation is programmable and mode-aware: EF/OR and FF/IR functions switch based on FWFT/SI state at master reset, while HF, PAE, and PAF operate continuously; PAE/PAF timing (synchronous/asynchronous) and offset values are set via FSEL0/FSEL1/LD during reset or loaded serially/parallel post-reset.

Key Specifications

Pinout & Package

SN74V273-6GGM is packaged in a 100-pin Ball Grid Array (BGA), GGM package, with 18-bit data I/O (D0–D17, Q0–Q17), dual clocks (WCLK, RCLK), enable controls (WEN, REN, OE), five status flags (EF/OR, FF/IR, HF, PAE, PAF), and configuration pins (IW, OW, BE, FWFT/SI, PFM, RM, IP, FSEL0/FSEL1, LD, MRS, PRS, SEN, RT).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74V273-6GGM, SN74V283-6GGM provides double the memory depth at identical speed and feature set, while IDT72V2115L15PF trades latency and advanced retransmit capability for JTAG debug integration - making SN74V273-6GGM optimal for latency-sensitive, high-throughput streaming where depth is constrained but determinism is essential.

Availability

SN74V273-6GGM is available at Aetrix Electronics and suitable for network packet buffering, DSP interfacing, video line synchronization, and telecom channel aggregation requiring stable component supply across long-life industrial and communications programs.

Supply support for SN74V273-6GGM 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 decades of leadership in high-speed interface and memory products.

The SN74V273-6GGM belongs to TI's high-speed FIFO family designed specifically for deterministic, low-latency data buffering in DSP, networking, and video infrastructure - emphasizing clock domain isolation, flexible bus matching, and robust flag-driven flow control.

FAQ

What memory organization does SN74V273-6GGM support?

SN74V273-6GGM supports two memory configurations: 16384 × 18 (18-bit wide, 16K deep) or 32768 × 9 (9-bit wide, 32K deep), selected dynamically via the IW (input width) and OW (output width) pins during master reset. This dual-mode architecture enables flexible data-path bridging without redesigning the PCB layout.

Does SN74V273-6GGM support 5-V logic inputs?

Yes, SN74V273-6GGM features 5-V-tolerant inputs on all control and data pins (D0–D17, WEN, REN, MRS, etc.), allowing direct interface with legacy 5-V microcontrollers or FPGAs without external level shifters - while maintaining full 3.3-V internal operation and signal integrity.

How is first-word latency handled in SN74V273-6GGM?

SN74V273-6GGM offers two latency modes: In FWFT mode, the first word written to an empty FIFO appears on Q outputs after exactly three RCLK rising edges - no REN assertion required. In standard mode, every read including the first requires active REN. The mode is selected by FWFT/SI at master reset.

Can SN74V273-6GGM perform zero-latency retransmit?

Yes, SN74V273-6GGM 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 - enabling instantaneous data replay for protocol recovery.

What packaging options are available for SN74V273-6GGM?

SN74V273-6GGM is offered exclusively in the 100-pin Ball Grid Array (BGA) package, designated GGM. This fine-pitch surface-mount package supports high-density routing and thermal performance required for sustained 166-MHz operation in compact telecom and video modules.