SN74AHCT244 具有三态输出的八路缓冲器/驱动器

SN74AHCT244 描述

These octal buffers/drivers are designed specifically to improve both the performance and density of 3-state memory-address drivers, clock drivers, and bus-oriented receivers and transmitters.

The ’AHCT244 devices are organized as two 4-bit buffers/line drivers with separate output-enable (OE)\ inputs. When OE\ is low, the device passes data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state.

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

SN54AHCT244 SN74AHCT244
Voltage Nodes(V) 5   5  
Vcc range(V) 4.5 to 5.5   4.5 to 5.5  
Logic True   True  
Input Level TTL   TTL  
Output Level CMOS   CMOS  
Output Drive(mA) -8/8   -8/8  
No. of Outputs 8   8  
tpd max(ns) 9.5   9.5  
Static Current 0.04   0.04  
Rating Military   Catalog  
Technology Family AHCT   AHCT
SN74AHCT244 特性
SN74AHCT244 芯片订购指南
器件 状态 温度 价格(美元) 封装 | 引脚 封装数量 | 封装载体 丝印标记
SN74AHCT244DW ACTIVE -40 to 85 0.28 | 1ku SOIC (DW) | 20 25 | TUBE AHCT244
SN74AHCT244DWE4 ACTIVE -40 to 85 0.28 | 1ku SOIC (DW) | 20 25 | TUBE AHCT244
SN74AHCT244DWG4 ACTIVE -40 to 85 0.28 | 1ku SOIC (DW) | 20 25 | TUBE AHCT244
SN74AHCT244 质量与无铅数据
器件 环保计划* 铅/焊球涂层 MSL 等级/回流焊峰 环保信息与无铅 (Pb-free) DPPM / MTBF / FIT 率
SN74AHCT244DW Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AHCT244DW SN74AHCT244DW
SN74AHCT244DWE4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AHCT244DWE4 SN74AHCT244DWE4
SN74AHCT244DWG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM SN74AHCT244DWG4 SN74AHCT244DWG4
SN74AHCT244 应用技术支持与电子电路设计开发资源下载
  1. SN74AHCT244 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器缓冲器、驱动器/收发器产品选型与价格 . xls
  3. CMOS 非缓冲反向器在振荡器电路中的使用 (PDF 951 KB)
  4. Semiconductor Packing Methodology (PDF 3005 KB)
  5. 逻辑产品选择指南 2006/2007 (修订版 Z)(4462KB)
  6. 标准线性和逻辑产品 5 分钟指南 (786KB)
  7. 了解和解释标准逻辑数据表
  8. LOGIC Pocket Data Book (PDF 6001 KB)
  9. HiRel Unitrode Power Management Brochure (PDF 206 KB)
  10. Logic Cross-Reference (PDF 2938 KB)