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 |
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 |
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 |