The SN54BCT540 and SN54BCT540 octal buffers and line drivers are ideal for driving bus lines or buffer memory-address registers. The devices feature inputs and outputs on opposite sides of the package to facilitate printed circuit board layout.
The 3-state control gate is a 2-input AND gate with active-low inputs so that if either output-enable (OE1\ or OE2\) input is high, all corresponding outputs are in the high-impedance state.
To ensure the high-impedance state during power up or power down, OE\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver
| SN54BCT540 | |
| Voltage Nodes(V) | 5 |
| Vcc range(V) | 4.5 to 5.5 |
| Input Level | TTL |
| Output Level | TTL |
| No. of Outputs | 8 |
| Output Drive(mA) | -15/64 |
| tpd max(ns) | 6.9 |
| Static Current | 50.5 |
| Logic | Inv |
| Technology Family | BCT |
| Rating | Catalog |
| 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 |
| SN54BCT540DBLE | OBSOLETE | 0 to 70 | SSOP (DB) | 20 | |||
| SN54BCT540DW | ACTIVE | 0 to 70 | 4.15 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN54BCT540DWE4 | ACTIVE | 0 to 70 | 4.15 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN54BCT540DWG4 | ACTIVE | 0 to 70 | 4.15 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN54BCT540DWR | ACTIVE | 0 to 70 | 3.45 | 1ku | SOIC (DW) | 20 | 2000 | LARGE T&R | |
| SN54BCT540DWRE4 | ACTIVE | 0 to 70 | 3.45 | 1ku | SOIC (DW) | 20 | 2000 | LARGE T&R | |
| SN54BCT540DWRG4 | ACTIVE | 0 to 70 | 3.45 | 1ku | SOIC (DW) | 20 | 2000 | LARGE T&R | |
| SN54BCT540N | ACTIVE | 0 to 70 | 3.80 | 1ku | PDIP (N) | 20 | 20 | TUBE | |
| SN54BCT540NE4 | ACTIVE | 0 to 70 | 3.80 | 1ku | PDIP (N) | 20 | 20 | TUBE | |
| SN54BCT540NSR | ACTIVE | 0 to 70 | 3.80 | 1ku | SO (NS) | 20 | 2000 | LARGE T&R | |
| SN54BCT540NSRE4 | ACTIVE | 0 to 70 | 3.80 | 1ku | SO (NS) | 20 | 2000 | LARGE T&R | |
| SN54BCT540NSRG4 | ACTIVE | 0 to 70 | 3.80 | 1ku | SO (NS) | 20 | 2000 | LARGE T&R |
| 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 |
| SN54BCT540DW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN54BCT540DW | SN54BCT540DW |
| SN54BCT540DWE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN54BCT540DWE4 | SN54BCT540DWE4 |
| SN54BCT540DWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN54BCT540DWG4 | SN54BCT540DWG4 |
| SN54BCT540DWR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN54BCT540DWR | SN54BCT540DWR |
| SN54BCT540DWRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN54BCT540DWRE4 | SN54BCT540DWRE4 |
| SN54BCT540DWRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN54BCT540DWRG4 | SN54BCT540DWRG4 |
| SN54BCT540N | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN54BCT540N | SN54BCT540N |
| SN54BCT540NE4 | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN54BCT540NE4 | SN54BCT540NE4 |
| SN54BCT540NSR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN54BCT540NSR | SN54BCT540NSR |
| SN54BCT540NSRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN54BCT540NSRE4 | SN54BCT540NSRE4 |
| SN54BCT540NSRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN54BCT540NSRG4 | SN54BCT540NSRG4 |