IS42S16400F-6TL

The IS42S16400F-6TL is a 64‑Mbit synchronous DRAM (SDRAM) organized as 1,048,576 × 16 × 4 banks. It provides a parallel memory interface with pipelined architecture and fully synchronous operation referenced to a positive clock edge.

Designed for systems that require a compact, board‑level SDRAM device, the IS42S16400F-6TL offers selectable burst operation, programmable CAS latency and refresh modes to match a range of synchronous memory timing requirements.

Key Features

• Memory Organization — 64 Mbit total organized as 4M × 16 with 4 internal banks for improved access concurrency.
• Performance — Clock frequency option includes 166 MHz for the -6 speed grade; access time from clock of 5.4 ns (CAS latency = 3).
• Programmable Burst & Latency — Programmable burst lengths (1, 2, 4, 8, full page) and selectable burst sequence (sequential/interleave); CAS latency programmable to 2 or 3 clocks.
• Refresh & Power Management — Supports self refresh and auto refresh (CBR); standard refresh of 4096 cycles every 64 ms (commercial grades) with other grades offering alternative refresh timing.
• Interface & Signaling — Fully synchronous operation with LVTTL signaling referenced to the rising clock edge; supports random column address every clock cycle and burst read/write operations.
• Supply Voltage — Single 3.3 V power supply (specified 3.0 V to 3.6 V).
• Package — 54‑pin TSOP II (0.400", 10.16 mm width) surface mount package (54‑TSOP II).
• Operating Range — Commercial temperature range: 0 °C to +70 °C (TA).

Typical Applications

• Embedded memory subsystems — Board‑level SDRAM for designs requiring a compact 64 Mbit parallel memory.
• System buffering — Synchronous burst capability and programmable CAS latency support high‑speed buffering and burst transfers in synchronous systems.
• Designs requiring legacy parallel SDRAM — Parallel interface and LVTTL signaling suit systems that use synchronous parallel DRAM architectures.
• Prototyping and board-level integration — Standard 54‑TSOP II package simplifies placement for prototype and production PCBs.

Unique Advantages

• Flexible timing control: Programmable CAS latency (2 or 3) and selectable burst lengths let designers optimize throughput and latency for target systems.
• High‑speed synchronous operation: 166 MHz clock option with 5.4 ns access time from clock (CAS = 3) supports fast, predictable memory cycles.
• Single‑supply simplicity: Operates from a single 3.3 V supply (3.0–3.6 V range), reducing power‑rail complexity on the board.
• Compact surface mount package: 54‑pin TSOP II package provides a small footprint for dense board designs while preserving parallel interface accessibility.
• Built‑in refresh and power modes: Self refresh and auto refresh support reduce controller overhead for maintaining data integrity over time.

Why Choose IS42S16400F-6TL?

The IS42S16400F-6TL delivers a straightforward, synchronous 64‑Mbit memory solution with configurable burst behavior and CAS latency to match a variety of timing requirements. Its 166 MHz speed grade, LVTTL interface and single 3.3 V supply make it suitable for designs that need predictable, clock‑referenced DRAM performance in a compact 54‑TSOP II package.

This device is appropriate for designers and procurement teams seeking a commercially rated, board‑level SDRAM component from Integrated Silicon Solution, Inc. where selectable timing, standard refresh modes and a small package profile are important for system integration and longevity.

Request a quote or submit a design inquiry to obtain pricing, lead time and availability for the IS42S16400F-6TL.