Encyclopedia Entry: 74ABT899DB,112

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic Device
• Characteristics: High-Speed, Low-Power, BiCMOS Technology
• Package: Dual-In-Line Package (DIP)
• Essence: 8-bit Universal Shift/Storage Register with Parallel I/O
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 4.5V to 5.5V
• Input Voltage Levels: CMOS/TTL Compatible
• Operating Temperature Range: -40°C to +85°C
• Output Drive Capability: ±24mA at 4.5V
• Propagation Delay: 3.5ns (typical)
• Number of Pins: 20

Detailed Pin Configuration

1. GND (Ground)
2. Q0 (Serial Output)
3. Q1 (Serial Output)
4. Q2 (Serial Output)
5. Q3 (Serial Output)
6. Q4 (Serial Output)
7. Q5 (Serial Output)
8. Q6 (Serial Output)
9. Q7 (Serial Output)
10. SER (Serial Data Input)
11. SCK (Serial Clock Input)
12. RCK (Register Clock Input)
13. OE (Output Enable)
14. MR (Master Reset)
15. D0 (Parallel Data Input/Output)
16. D1 (Parallel Data Input/Output)
17. D2 (Parallel Data Input/Output)
18. D3 (Parallel Data Input/Output)
19. VCC (Power Supply)
20. GND (Ground)

Functional Features

• Universal shift register with parallel input/output capability
• Serial data input with synchronous clocking
• Parallel data input/output for easy interfacing
• Output enable control for tri-state outputs
• Master reset for clearing the register
• High-speed operation with low power consumption
• BiCMOS technology for improved performance

Advantages and Disadvantages

Advantages: - Versatile functionality for various applications - High-speed operation allows for quick data processing - Low-power consumption for energy-efficient designs - Easy interfacing with parallel data input/output - Tri-state outputs provide flexibility in bus systems

Disadvantages: - Limited number of parallel data input/output pins (4 bits) - Requires external clock signals for proper operation - Not suitable for applications requiring higher bit capacity

Working Principles

The 74ABT899DB,112 is an 8-bit universal shift/storage register with parallel I/O capability. It operates based on a serial-in, parallel-out shift register principle. The serial data input (SER) is synchronized with the serial clock input (SCK), allowing the data to be shifted into the register. The parallel data input (D0-D3) can be loaded directly into the register when the register clock input (RCK) is activated.

The stored data can be read out through the serial output pins (Q0-Q7) or the parallel output pins (D0-D3). The output enable (OE) pin controls the tri-state outputs, enabling or disabling the output drivers. The master reset (MR) pin clears the register, setting all outputs to a known state.

Detailed Application Field Plans

The 74ABT899DB,112 is widely used in various digital systems and applications, including but not limited to:

1. Data communication systems
2. Microprocessor-based systems
3. Industrial control systems
4. Automotive electronics
5. Test and measurement equipment
6. Consumer electronics

Its versatility and high-speed operation make it suitable for applications that require data storage, shifting, and parallel input/output capabilities.

Detailed and Complete Alternative Models

1. 74HC595: 8-bit shift register with serial input and parallel output
2. CD4021B: 8-bit static shift register with parallel input and serial output
3. SN74LS164N: 8-bit serial-in/parallel-out shift register
4. MC74HC165AN: 8-bit parallel-in/serial-out shift register

These alternative models offer similar functionality to the 74ABT899DB,112 and can be considered as replacements depending on specific application requirements.

In conclusion, the 74ABT899DB,112 is a versatile digital logic device that provides an 8-bit universal shift/storage register with parallel I/O capability. Its high-speed operation, low-power consumption, and easy interfacing make it suitable for various applications in different fields.