Technical Summary: K4F660411C DRAM Component

Overview

The K4F660411C is a high-performance Dynamic Random-Access Memory (DRAM) component designed for applications requiring reliable and efficient memory storage. This component is part of a family of DRAM devices that include variations in refresh cycles and voltage specifications. The K4F660411C is optimized for systems requiring 5.0V operation and supports both 4K and 8K refresh cycles, depending on the specific part number. Its architecture includes integrated sense amplifiers, I/O buffers, and advanced control logic to ensure high-speed data access and low power consumption.

Features

• Voltage Compatibility: Operates at 5.0V, making it suitable for legacy and industrial applications.
• Refresh Cycle Options: Available in 4K and 8K refresh cycle variants (e.g., K4F640411C for 4K, K4F660411C for 8K).
• Integrated Sense Amplifiers: Enhances data read/write accuracy and speed.
• Advanced Control Logic: Includes refresh timer, refresh counter, and address buffers for efficient memory management.
• High-Speed Data I/O: Features dedicated data in/out buffers (DQ0 to DQ3) for reliable data transfer.
• Low-Power Design: Incorporates a VBB generator for reduced power consumption during standby.
• Robust Addressing: Equipped with row and column decoders for precise memory cell selection.

Applications

The K4F660411C is designed for a wide range of applications, particularly those requiring dependable and high-speed memory solutions. Key application areas include:

• Industrial Control Systems: Used in programmable logic controllers (PLCs) and automation equipment.
• Embedded Systems: Ideal for microcontroller-based systems requiring volatile memory.
• Legacy Computing: Suitable for older computer systems and peripherals operating at 5.0V.
• Telecommunications: Supports buffering and temporary storage in networking hardware.
• Consumer Electronics: Used in devices such as printers, set-top boxes, and gaming consoles.

Electrical Characteristics

Absolute Maximum Ratings

• Supply Voltage (VCC): -0.5V to +7.0V
• Input Voltage (VI): -0.5V to VCC + 0.5V
• Operating Temperature Range: 0°C to +70°C (commercial), -40°C to +85°C (industrial)
• Storage Temperature Range: -55°C to +150°C

Recommended Operating Conditions

• Supply Voltage (VCC): 4.5V to 5.5V
• Input High Voltage (VIH): 2.4V min (at VCC = 4.5V)
• Input Low Voltage (VIL): 0.8V max (at VCC = 4.5V)
• Refresh Cycle Time: 16ms (for 4K variant), 64ms (for 8K variant)

DC Characteristics

• Standby Current (ISB): 10µA max (at VCC = 5.5V, T = 25°C)
• Operating Current (ICC): 50mA max (at VCC = 5.5V, f = 1MHz)
• Output High Voltage (VOH): 2.4V min (at IOH = -2.0mA)
• Output Low Voltage (VOL): 0.4V max (at IOL = 2.0mA)

AC Characteristics

• Access Time (tAA): 70ns max (from address valid to data out)
• Row Address Setup Time (tRAS): 100ns min
• Column Address Hold Time (tCAH): 20ns min
• Write Pulse Width (tWP): 50ns min
• Data Hold Time (tDH): 10ns min

Package Information

The K4F660411C is available in multiple package options, tailored to different application requirements. Below are the key package details:

JC Package (Plastic SOJ)

• Package Type: 400-mil SOJ (Small Outline J-Lead)
• Pin Count: 28 pins
• Dimensions: 18.41mm x 10.16mm x 3.81mm (L x W x H)
• Pitch: 1.27mm
• Operating Temperature: 0°C to +70°C (commercial)

TC Package (TSOP)

• Package Type: 400-mil TSOP (Thin Small Outline Package)
• Pin Count: 28 pins
• Dimensions: 18.41mm x 10.16mm x 1.2mm (L x W x H)
• Pitch: 0.8mm
• Operating Temperature: -40°C to +85°C (industrial)

Handling and Storage

To ensure the longevity and reliability of the K4F660411C, adhere to the following handling and storage guidelines:

• Store in an anti-static bag or container to prevent electrostatic discharge (ESD) damage.
• Avoid exposure to moisture; use dry storage conditions with relative humidity below 60%.
• Follow standard reflow soldering profiles for surface-mount packages (JC and TC).
• Avoid mechanical stress during assembly to prevent damage to leads or solder joints.

Conclusion

The K4F660411C DRAM component is a versatile and reliable memory solution for a variety of applications, offering high performance, low power consumption, and flexible packaging options. Its robust electrical characteristics and wide operating temperature range make it suitable for both commercial and industrial environments. Whether used in legacy systems or modern embedded designs, the K4F660411C delivers consistent performance and durability.