SN74HC244 具有三态输出的八路缓冲器和线路驱动器
SN74HC244 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. The ’HC244 devices are organized as two 4-bit buffers/drivers with separate output-enable (OE)\ inputs. When OE\ is low, the device passes noninverted data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state.
|
SN54HC244 |
SN74HC244 |
| Voltage Nodes(V) |
6, 5, 2 |
6, 4.5, 2 |
| Vcc range(V) |
2.0 to 6.0 |
2.0 to 6.0 |
| Logic |
True |
True |
| Input Level |
CMOS |
CMOS |
| Output Level |
CMOS |
CMOS |
| Output Drive(mA) |
|
-7.8/7.8 |
| No. of Gates |
|
|
| No. of Outputs |
8 |
8 |
| tpd max(ns) |
|
29 |
| Static Current |
|
0.08 |
| Rating |
Military |
Catalog |
| Technology Family |
HC |
HC |
SN74HC244 特性
- Wide Operating Voltage Range of 2 V to 6 V
- High-Current Outputs Drive Up To 15 LSTTL Loads
- 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers
- Low Power Consumption, 80-µA Max ICC
- Typical tpd = 11 ns
- ±6-mA Output Drive at 5 V
- Low Input Current of 1 µA Max
SN74HC244 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 |
| SN74HC244DW |
ACTIVE |
-40 to 85 |
0.28 | 1ku |
SOIC (DW) | 20 |
25 | TUBE |
HC244 |
| SN74HC244DWE4 |
ACTIVE |
-40 to 85 |
0.28 | 1ku |
SOIC (DW) | 20 |
25 | TUBE |
HC244 |
| SN74HC244DWG4 |
ACTIVE |
-40 to 85 |
0.28 | 1ku |
SOIC (DW) | 20 |
25 | TUBE |
HC244 |
SN74HC244 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 |
| SN74HC244DW |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74HC244DW |
SN74HC244DW |
| SN74HC244DWE4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74HC244DWE4 |
SN74HC244DWE4 |
| SN74HC244DWG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
SN74HC244DWG4 |
SN74HC244DWG4 |
SN74HC244 应用技术支持与电子电路设计开发资源下载
- SN74HC244 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)
