NJM456508BTC74ACT74FTC74AC240F7820¥30去看看宇豪正品原装店发布了新NJM456508B ABT7820-30 TC74AC240F TC74ACT74F T丝印4565NJM456508BNJM4565JRC¥1.40去看看能良科技发布了丝印NJM4565V-1 NJM4565MXD NJM4565JRC NJM4565D-D NJM456508B