张家界大量回收英飞凌场效应管 181+2470一起1558 微芯同号 STM32F207VCT6
STM32F051C8T6
STM32L052K8U6TR
STM32F051C8T6
STM32P100R8SODTR
STM32P100R8S0DTR
STM32P10SODTR
STM32P10S0DTR
STM32F103R6H6
STM32L151R8H6
74VHC595MTCX
YDA174-QZE2
TJA1042T/CM
XC4VSX55-11FF1148I
XC4VSX55-10FF1148I
M25P64-VMF6TP
AT24C64D-SSHM-T
KMK7X000VM-B314
PIC18F25K80-I/SS
HCS300-I/SN
IRF7317TRPBF
CM108B
IRFB7537PBF
ATTINY45-20SU
LAN9514-JXZ
MCP3201-BI/SN
C2M0080120D TCA9555RTWR TRS3253EIRSMR INA240A1PWR INA240A2PWR ADS1112IDGSR ADS7953SRHBR DAC7611U TS3A27518ERTWR INA282AIDR DRV8832DGQR TL4242DRJR UC3710T UCC27712DR UCC27524ADR TRF7962ARHBR TRF7970ARHBR TRF7964ARHBR TPS54478RTER TPS74901RGWR OPA4197IDR另一种称为动态ram（dynamic ram/dram），dram保留数据的时间很短，速度也比sram慢，不过它还是比的rom都要快，但从价格上来说dram相比sram要便宜很多，计算机内存就是dram的。