SCLS334J March 1996 – October 2014 SN74AHCT16244
PRODUCTION DATA.
- 1 Features
- 2 Applications
- 3 Description
- 4 Simplified Schematic
- 5 Revision History
- 6 Pin Configuration and Functions
- 7 Specifications
- 8 Parameter Measurement Information
- 9 Detailed Description
- 10Application and Implementation
- 11Power Supply Recommendations
- 12Layout
- 13Device and Documentation Support
- 14Mechanical, Packaging, and Orderable Information
封装选项
请参考 PDF 数据表获取器件具体的封装图。
机械数据 (封装 | 引脚)
- DGG|48
- DL|48
- DGV|48
散热焊盘机械数据 (封装 | 引脚)
订购信息
9 Detailed Description
9.1 Overview
The SN74AHCT16244 device is a 16-bit buffer and line driver specifically designed to improve the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. This device can be used as a four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. It provides true outputs and symmetrical active-low output-enable (OE) inputs. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor. The minimum value of the resistor is determined by the current-sinking capability of the driver. The SN74AHCT16244 is characterized for operation from –40°C to 125°C.
9.2 Functional Block Diagram
9.3 Feature Description
- VCC is optimized at 5 V
- Allows up voltage translation from 3.3 V to 5 V
- Inputs accept VIH levels of 2 V
- Slow edge rates minimize output ringing
- Inputs are TTL-voltage compatible
9.4 Device Functional Modes
Table 1. Function Table
(Each 4-bit Buffer/Driver)
| INPUTS | OUTPUT Y |
|
|---|---|---|
| OE | A | |
| L | H | H |
| L | L | L |
| H | X | Z |