SN74ALS638A-1 八路总线收发器
SN74ALS638A-1 描述
These octal bus transceivers are designed for asynchronous two-way communication between open-collector and 3-state buses. The devices transmit data from the A bus (open-collector) to the B bus (3 state) or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (
) input can be used to disable the device so the buses are isolated.
The -1 version of SN74ALS638A-1A is identical to the standard version, except that the recommended maximum IOL is increased to 48 mA.
The SN74ALS638A, SN74ALS639A, SN74AS638A, and SN74AS639 are characterized for operation from 0°C to 70°C.
| SN74ALS638A-1 | |
| Voltage Nodes(V) | 5 |
| Rating | Catalog |
| Technology Family | ALS |
SN74ALS638A-1 特性
- Bidirectional Bus Transceivers in High-Density 20-Pin Packages
- Choice of True or Inverting Logic
- A-Bus Outputs Are Open Collector; B-Bus Outputs Are 3 State
- Package Options Include Plastic Small-Outline (DW) Packages and Standard Plastic (N) 300-mil DIPs
SN74ALS638A-1 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 |
| SN74ALS638A-1NSR | ACTIVE | 0 to 70 | 7.95 | 1ku | SO (NS) | 20 | 2000 | LARGE T&R | |
| SN74ALS638A-1NSRE4 | ACTIVE | 0 to 70 | 7.95 | 1ku | SO (NS) | 20 | 2000 | LARGE T&R | |
| SN74ALS638A-1NSRG4 | ACTIVE | 0 to 70 | 7.95 | 1ku | SO (NS) | 20 | 2000 | LARGE T&R |
SN74ALS638A-1 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 |
| SN74ALS638A-1NSR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS638A-1NSR | SN74ALS638A-1NSR |
| SN74ALS638A-1NSRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS638A-1NSRE4 | SN74ALS638A-1NSRE4 |
| SN74ALS638A-1NSRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS638A-1NSRG4 | SN74ALS638A-1NSRG4 |
SN74ALS638A-1 应用技术支持与电子电路设计开发资源下载
- SN74ALS638A-1 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
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- Logic Cross-Reference (PDF 2938 KB)