榆林大量回收瑞昱进口芯片 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 LSM6DS3TR STLM20DD9F LM317D2T-TR STL8N6F7 ESDA6V1SC6 M24LR04E-RMN6T/2 LF120CDT-TR M24LR04E-RDW6T/2 ST1S32PUR VN7016AJTR STM6510SCACDG6F LM135 MUN5211T1G M24C02-FDW6TP TS3431ILT FDV303 STX616-AP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。