ZHCSR91E September 2006 – December 2022 SN74LVC1T45-Q1
PRODUCTION DATA
请参考 PDF 数据表获取器件具体的封装图。
Table 8-2 shows data transmission from SYSTEM-1 to SYSTEM-2 and then from SYSTEM-2 to SYSTEM-1.
STATE | DIR CTRL | I/O-1 | I/O-2 | DESCRIPTION |
---|---|---|---|---|
1 | H | Out | In | SYSTEM-1 data to SYSTEM-2 |
2 | H | Hi-Z | Hi-Z | SYSTEM-2 is getting ready to send data to SYSTEM-1. I/O-1 and I/O-2 are disabled. The bus-line state depends on pullup or pulldown.(1) |
3 | L | Hi-Z | Hi-Z | DIR bit is flipped. I/O-1 and I/O-2 still are disabled. The bus-line state depends on pullup or pulldown.(1) |
4 | L | Out | In | SYSTEM-2 data to SYSTEM-1 |