IS42S16400E-7TL

Product Overview

The IS42S16400E-7TL from ISSI, Integrated Silicon Solution Inc is a 64Mbit SDRAM memory IC intended for volatile main memory or data buffering tasks. It uses a 4M x 16 memory organization and an LVTTL interface, with a 143 MHz clock frequency and 5.4 ns access time. The device operates from a 3V to 3.6V supply and is offered in a 54-TSOP II surface-mount package with 0.400 inch, 10.16 mm width.

Key Features

• 64Mbit volatile DRAM memory with SDRAM technology and a 4M x 16 organization.
• LVTTL memory interface supports 3V to 3.6V supply operation.
• 143 MHz clock frequency with 5.4 ns access time.
• Surface-mount 54-TSOP II package, 54-TSOP with 0.400 inch, 10.16 mm width.
• Rated for 0°C to 70°C (TA) operating temperature.

Applications

• Embedded systems that require volatile DRAM for temporary data storage or system memory.
• Consumer electronic devices using an LVTTL memory bus and SDRAM interface.
• Equipment designs where a 3V to 3.6V supply and 54-TSOP II footprint fit the board layout.

Design & Procurement Notes

When selecting the IS42S16400E-7TL, confirm that the host memory controller supports a 4M x 16 SDRAM organization, 143 MHz clocking, and LVTTL signaling. The 3V to 3.6V supply range should match the board's memory rail, and the 0°C to 70°C (TA) temperature range should be checked against the expected ambient conditions. The 5.4 ns access time and 143 MHz clock frequency are relevant for timing closure and bus setup/hold considerations. For mechanical layout, use the 54-TSOP II surface-mount footprint with 0.400 inch, 10.16 mm package width.