IDT72T40108L5BB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Memory controller
• Characteristics:
  • High-speed performance
  • Low power consumption
  • Compact size
• Package: LQFP (Low-profile Quad Flat Package)
• Essence: Efficient memory control for various applications
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Memory Type: Synchronous Dynamic Random Access Memory (SDRAM)
• Memory Size: 1 Megabyte (MB)
• Data Bus Width: 8 bits
• Clock Frequency: 100 MHz
• Operating Voltage: 3.3 Volts (V)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The IDT72T40108L5BB has a total of 100 pins, which are assigned as follows:

• Pins 1-8: Data Input/Output (DQ0-DQ7)
• Pins 9-12: Address Inputs (A0-A3)
• Pins 13-16: Bank Select Inputs (BA0-BA3)
• Pins 17-20: Column Address Strobe (CAS) Inputs
• Pins 21-24: Row Address Strobe (RAS) Inputs
• Pins 25-28: Write Enable (WE) Inputs
• Pins 29-32: Chip Select (CS) Inputs
• Pins 33-36: Clock (CLK) Inputs
• Pins 37-40: Power Supply (VDD, VSS) Connections
• Pins 41-44: No Connect (NC)
• Pins 45-48: Data Mask (DM) Inputs
• Pins 49-52: Output Enable (OE) Inputs
• Pins 53-56: Burst Address Inputs (BA0-BA3)
• Pins 57-60: Burst Length Inputs (BL0-BL3)
• Pins 61-64: Burst Type Inputs (BT0-BT3)
• Pins 65-68: Burst Stop (BS) Inputs
• Pins 69-72: Clock Enable (CKE) Inputs
• Pins 73-76: DLL Reset (DLLRST) Inputs
• Pins 77-80: DLL Enable (DLLEN) Inputs
• Pins 81-84: DLL Output (DLLOUT) Outputs
• Pins 85-88: DLL Feedback (DLLFB) Inputs
• Pins 89-92: DLL Reference (DLLREF) Inputs
• Pins 93-96: DLL Clock (DLLCLK) Inputs
• Pins 97-100: No Connect (NC)

Functional Features

• Efficient memory control for high-speed data processing
• Support for various SDRAM modules
• Automatic refresh and self-timed precharge functions
• Programmable burst length and burst type
• Power-saving modes for reduced energy consumption
• Error correction and detection capabilities

Advantages

• High-speed performance enables faster data processing
• Low power consumption helps conserve energy
• Compact size allows for space-efficient designs
• Versatile compatibility with different SDRAM modules
• Error correction and detection enhance data reliability

Disadvantages

• Limited memory size (1MB)
• Requires external components for complete memory system implementation
• Relatively higher cost compared to lower-capacity memory controllers

Working Principles

The IDT72T40108L5BB is a memory controller designed to efficiently manage the operation of synchronous dynamic random access memory (SDRAM). It interfaces between the host system and the SDRAM module, providing control signals and managing data transfers.

The controller receives commands from the host system and translates them into appropriate control signals for the SDRAM module. It handles functions such as row and column addressing, data input/output, refresh cycles, and timing control.

By synchronizing the data transfers with the clock signal, the controller ensures efficient and reliable communication between the host system and the SDRAM module.

Detailed Application Field Plans

The IDT72T40108L5BB memory controller finds applications in various fields, including:

1. Computer Systems:

   • Desktop computers
   • Laptops
   • Servers

2. Networking Equipment:

   • Routers
   • Switches
   • Network Attached Storage (NAS) devices

3. Consumer Electronics:

   • Smartphones
   • Tablets
   • Gaming consoles

4. Industrial Control Systems:

   • Programmable Logic Controllers (PLCs)
   • Human-Machine Interfaces (HMIs)
   • Data acquisition systems

Detailed and Complete Alternative Models

1. Micron Technology Inc. - MT48LC16M16A2P-75
2. Samsung Electronics Co., Ltd. - K4S561632H-UC60
3. Nanya Technology Corporation - NT5DS32M8