IS42S16160B-7TLI

The IS42S16160B-7TLI is a 256 Mbit synchronous DRAM organized as 16M × 16 with a parallel memory interface and a 54-pin TSOP-II package. It implements a fully synchronous, quad-bank architecture with pipeline operation to support high-speed, burst-oriented data transfers in 3.3 V memory systems.

Designed for systems that require deterministic, high-throughput memory operations, this device offers programmable burst lengths and CAS latency options, power-saving refresh modes, and an industrial operating temperature range for use in temperature-constrained applications.

Key Features

• Memory Architecture  256 Mbit SDRAM organized as 16M × 16 with internal quad-bank configuration to support concurrent bank operations and hidden row precharge.
• Performance  Clock rate up to 143 MHz (‑7 speed grade) with an access time from clock of 5.4 ns (CAS latency = 3), and programmable CAS latency of 2 or 3 clocks for performance tuning.
• Burst and Access Modes  Programmable burst length (1, 2, 4, 8, full page) and burst sequence (sequential/interleave), supporting burst read/write and burst read/single write operations with burst termination options.
• Refresh and Power Management  Auto Refresh and Self Refresh support with 8K refresh cycles every 64 ms, plus a power-down mode to reduce standby power.
• Interface  Fully synchronous operation with all signals referenced to the positive clock edge and LVTTL-compatible inputs/outputs for standard 3.3 V memory system integration.
• Voltage and Temperature  Operating supply range of 3.0 V to 3.6 V and an industrial operating temperature range of -40 °C to 85 °C.
• Package  54-pin TSOP-II (0.400", 10.16 mm width) package; the device family is also offered in 54-ball BGA (x16 only) and available in lead-free options.

Typical Applications

• 3.3 V Memory Subsystems  Used as synchronous DRAM memory in 3.3 V system architectures where deterministic burst transfers and CAS latency control are required.
• Embedded Systems  Provides 256 Mbit of volatile storage for embedded controllers and processors that require pipelined, high-speed parallel memory access.
• Industrial Equipment  Suitable for industrial designs that need extended temperature operation (‑40 °C to 85 °C) while maintaining SDRAM performance.

Unique Advantages

• Synchronous Pipeline Architecture: Registered inputs and outputs referenced to the clock edge enable predictable, high-speed burst transfers.
• Flexible Performance Tuning: Programmable CAS latency and selectable burst lengths/sequence allow designers to match memory timing to system requirements.
• Bank Interleaving and Hidden Precharge: Internal multi-bank design hides row-access/precharge time to improve effective throughput in random-access patterns.
• Power-saving Modes: Auto Refresh, Self Refresh and power-down reduce standby power in duty-cycled or low-activity systems.
• Industrial-grade Operating Range: Wide operating temperature and standard 3.0–3.6 V supply compatibility simplify integration into industrial and harsh-environment designs.
• Standard Packaging Options: 54-pin TSOP-II package provides a compact, board-level solution with lead-free availability for manufacturing flexibility.

Why Choose IS42S16160B-7TLI?

The IS42S16160B-7TLI positions itself as a deterministic, high-speed SDRAM option for designs that demand programmable burst behavior, selectable CAS latency, and robust refresh/power modes. Its 16M × 16 organization and quad-bank architecture deliver the memory density and internal concurrency needed for sustained burst transfers in 3.3 V systems.

This device is well suited for engineers specifying memory for embedded and industrial applications where extended temperature range, predictable timing (5.4 ns access time @ CL=3), and standard TSOP-II packaging are required. The combination of configurable timing, bank interleaving, and refresh capabilities provides long-term design flexibility and operational reliability.

Request a quote or submit a pricing and availability inquiry to discuss lead times, package options, and volume pricing for the IS42S16160B-7TLI.