The SN74FB2031 is a 9-bit transceiver designed to translate signals between TTL and backplane transceiver logic (BTL) environments. The device is designed specifically to be compatible with IEEE Std 1194.1-1991.
The B\ port operates at BTL-signal levels. The open-collector B\ ports are specified to sink 100 mA. Two output enables (OEB and OEB\) are provided for the B\ outputs. When OEB is low, OEB\ is high, or VCC is less than 2.1 V, the B\ port is turned off.
The A port operates at TTL signal levels. The A outputs reflect the inverse of the data at the B\ port when the A-port output enable (OEA) is high. When OEA is low or VCC is less than 2.1 V, the A outputs are in the high-impedance state.
Pins are allocated for the four-wire IEEE Std 1149
| SN74FB2031 | |
| Voltage Nodes(V) | 5 |
| Vcc range(V) | TTL |
| Bus Drive(ma) | BTL |
| No. of Outputs | -3/100 |
| No. of Bits | 9 |
| Logic | 0.9 |
| Static Current | 2.8 |
| tpd max(ns) | 78 |
| Rating | Catalog |
| Technology Family | FB |
| 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 |
| SN74FB2031RC | ACTIVE | 0 to 70 | 18.70 | 1ku | QFP (RC) | 52 | 96 | JEDEC TRAY (5+1) | |
| SN74FB2031RCR | ACTIVE | 0 to 70 | 15.60 | 1ku | QFP (RC) | 52 | 500 | 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 |
| SN74FB2031RC | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-240C-1 YEAR | SN74FB2031RC | SN74FB2031RC |
| SN74FB2031RCR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-240C-1 YEAR | SN74FB2031RCR | SN74FB2031RCR |