SN74F244 具有三态输出的八路缓冲器/驱动器
SN74F244 描述
These octal buffers and line 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. Taken together with the 'F240 and 'F241, these devices provide the choice of selected combinations of inverting and noninverting outputs, symmetrical 
(active-low output-enable) inputs, and complementary OE and inputs.
The 'F244 is organized as two 4-bit buffers/line drivers with separate output enable () inputs. When is low, the device passes data from the A inputs to the Y outputs. When is high, the outputs are in the high-impedance state.
The SN74F244 is available in TI's shrink small-outline package (DB), which provides the same I/O pin count and functionality of standard small-outline packages in less than half the printed-circuit-board area
| SN54F244 | SN74F244 | |
| 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 | TTL | TTL |
| Output Drive(mA) | -15/64 | |
| No. of Outputs | 8 | 8 |
| tpd max(ns) | 6.5 | |
| Static Current | 75 | |
| Rating | Military | Catalog |
| Technology Family | F | F |
SN74F244 特性
- 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers
- Package Options Include Plastic Small-Outline (SOIC) and Shrink Small-Outline (SSOP) Packages, Ceramic Chip Carriers, and Plastic and Ceramic DIPs
SN74F244 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 |
| SN74F244DW | ACTIVE | 0 to 70 | 0.55 | 1ku | SOIC (DW) | 20 | 25 | TUBE | F244 |
| SN74F244DWE4 | ACTIVE | 0 to 70 | 0.55 | 1ku | SOIC (DW) | 20 | 25 | TUBE | F244 |
| SN74F244DWG4 | ACTIVE | 0 to 70 | 0.55 | 1ku | SOIC (DW) | 20 | 25 | TUBE | F244 |
SN74F244 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 |
| SN74F244DW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74F244DW | SN74F244DW |
| SN74F244DWE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74F244DWE4 | SN74F244DWE4 |
| SN74F244DWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74F244DWG4 | SN74F244DWG4 |
SN74F244 应用技术支持与电子电路设计开发资源下载
- SN74F244 数据资料 dataSheet 下载.PDF
- TI 德州仪器缓冲器、驱动器/收发器产品选型与价格 . xls
- CMOS 非缓冲反向器在振荡器电路中的使用 (PDF 951 KB)
- Semiconductor Packing Methodology (PDF 3005 KB)
- 逻辑产品选择指南 2006/2007 （修订版 Z）(4462KB)
- 标准线性和逻辑产品 5 分钟指南 (786KB)
- 了解和解释标准逻辑数据表
- LOGIC Pocket Data Book (PDF 6001 KB)
- HiRel Unitrode Power Management Brochure (PDF 206 KB)
- Logic Cross-Reference (PDF 2938 KB)