CD74HCT244 具有三态输出的高速 CMOS 逻辑反向八路缓冲器/线路驱动器
CD74HCT244 描述
The ’HC240 and ’HCT240 are inverting three-state buffers having two active-low output enables. The CD74HC240, ’HCT241, ’HC244 and ’HCT244 are non-inverting three-state buffers that differ only in that the 241 has one active-high and one active-low output enable, and the 244 has two active-low output enables. All three types have identical pinouts.
|
CD74HCT244 |
| Voltage Nodes(V) |
6, 5, 2 |
| Vcc range(V) |
2.0 to 6.0 |
| Input Level |
True |
| Output Level |
CMOS |
| No. of Outputs |
CMOS |
| Output Drive(mA) |
-6/6 |
| tpd max(ns) |
8 |
| Static Current |
28 |
| Logic |
0.08 |
| Technology Family |
Catalog |
| Rating |
HC |
CD74HCT244 特性
- HC/ HCT240 Inverting
- HC/ HCT241 Non-Inverting
- HC/ HCT244 Non-Inverting
- Typical Propagation Delay = 8ns at VCC = 5V, CL = 15pF, TA = 25°C for HC240
- Three-State Outputs
- Buffered Inputs
- High-Current Bus Driver Outputs
- Fanout (Over Temperature Range)
- Standard Outputs . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . 15 LSTTL Loads
- Wide Operating Temperature Range . . . –55°C to 125°C
- Balanced Propagation Delay and Transition Times
- Significant Power Reduction Compared to LSTTL Logic ICs
- HC Types
- 2V to 6V Operation
- High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
- HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min)
- CMOS Input Compatibility, Il
1µA at VOL, VOH
CD74HCT244 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 |
| CD74HCT244E |
ACTIVE |
-55 to 125 |
0.60 | 1ku |
PDIP (N) | 20 |
20 | TUBE |
|
| CD74HCT244EE4 |
ACTIVE |
-55 to 125 |
0.60 | 1ku |
PDIP (N) | 20 |
20 | TUBE |
|
| CD74HCT244M |
ACTIVE |
-55 to 125 |
0.65 | 1ku |
SOIC (DW) | 20 |
25 | TUBE |
|
| CD74HCT244M96 |
ACTIVE |
-55 to 125 |
0.55 | 1ku |
SOIC (DW) | 20 |
2000 | LARGE T&R |
|
| CD74HCT244M96E4 |
ACTIVE |
-55 to 125 |
0.55 | 1ku |
SOIC (DW) | 20 |
2000 | LARGE T&R |
|
| CD74HCT244M96G4 |
ACTIVE |
-55 to 125 |
0.55 | 1ku |
SOIC (DW) | 20 |
2000 | LARGE T&R |
|
| CD74HCT244ME4 |
ACTIVE |
-55 to 125 |
0.65 | 1ku |
SOIC (DW) | 20 |
25 | TUBE |
|
| CD74HCT244MG4 |
ACTIVE |
-55 to 125 |
0.65 | 1ku |
SOIC (DW) | 20 |
25 | TUBE |
|
CD74HCT244 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 |
| CD74HCT244E |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
CD74HCT244E |
CD74HCT244E |
| CD74HCT244EE4 |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
CD74HCT244EE4 |
CD74HCT244EE4 |
| CD74HCT244M |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
CD74HCT244M |
CD74HCT244M |
| CD74HCT244M96 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
CD74HCT244M96 |
CD74HCT244M96 |
| CD74HCT244M96E4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
CD74HCT244M96E4 |
CD74HCT244M96E4 |
| CD74HCT244M96G4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
CD74HCT244M96G4 |
CD74HCT244M96G4 |
| CD74HCT244ME4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
CD74HCT244ME4 |
CD74HCT244ME4 |
| CD74HCT244MG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
CD74HCT244MG4 |
CD74HCT244MG4 |
CD74HCT244 应用技术支持与电子电路设计开发资源下载
- CD74HCT244 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)
