存储器主要用于存储系统程序、用户程序及工作数据。存放系统软件的存储器称为系统程序存储器,存放应用软件的存储器为用户程序存储器,存放工作数据的存储器称为数据存储器,常用的存储器有RAM,EPROM和EEPROM,RAM是一种可进行读写操作的随机存储器存放用户程序,生成用户数据区,存放在RAM中的用户程序可方便地修改,RAM存储器是一种高密度,低功耗,性价比高的半导体存储器,可用锂电池做备用电源,掉电时,可有效的保存存储的信息EPROM EEPROM都是只读存储器,用这些类型存储器固化系统管理程序和应用程序。 Density Org. Temp. Vcc(V) Speed(ns) C/S Option Package Packing Status P/N 1Mbit 128K x 8 Industrial 3.3 45/55 2C/S 32sTSOP1/32TSOP1/32SOP Tray MP VTI501NB08 1Mbit 128K x 8 Industrial 5.0 45/55 2C/S 32sTSOP1/32TSOP1/32SOP Tray MP VTI501HB08 1Mbit 64K x 16 Industrial 3.3 45/55 1C/S 44TSOP2/48BGA Tray MP VTI501NL16 1Mbit 64K x 16 Industrial 5.0 45/55 1C/S 44TSOP2/48BGA Tray MP VTI501HL16 2Mbit 256K x 8 Industrial 3.3 45/55 1C/S 36BGA Tray MP VTI502NL08 2Mbit 256K x 8 Industrial 3.3 45/55 2C/S 32sTSOP1/32TSOP1/32TSOP2/32SOP Tray MP VTI502NB08 2Mbit 256K x 8 Industrial 5.0 45/55 2C/S 32sTSOP1/32TSOP1/32TSOP2/32SOP Tray MP VTI502HB08 2Mbit 128K x 16 Industrial 3.3 45/55 1C/S 44TSOP2/48BGA Tray MP VTI502NL16 2Mbit 128K x 16 Industrial 3.3 45/55 2C/S 48BGA Tray MP VTI502NB16 2Mbit 128K x 16 Industrial 5.0 45/55 1C/S 44TSOP2 Tray MP VTI502HL16 4Mbit 512K x 8 Industrial 3.3 45/55 1C/S 32sTSOP1/32TSOP1/32TSOP2/32SOP Tray MP VTI504NL08 4Mbit 512K x 8 Industrial 5.0 45/55 1C/S 32sTSOP1/32TSOP1/32TSOP2/32SOP Tray MP VTI504HL08 4Mbit 256K x 16 Industrial 3.3 45/55 1C/S 44TSOP2/48BGA Tray MP VTI504NL16 4Mbit 256K x 16 Industrial 3.3 45/55 2C/S 44TSOP2/48BGA Tray MP VTI504NB16 4Mbit 256K x 16 Industrial 5.0 45/55 1C/S 44TSOP2 Tray MP VTI504HL16 4Mbit 256K x 16 Industrial 5.0 45/55 2C/S 44TSOP2 Tray MP VTI504HB16 8Mbit 1M x 8 Industrial 3.3 45/55 2C/S 44TSOP2/48BGA Tray MP VTI508NB08 8Mbit 1M x 8 Industrial 5.0 45/55 2C/S 44TSOP2/48BGA Tray MP VTI508HB08 8Mbit 512K x 16 Industrial 3.3 45/55 1C/S 44TSOP2/48BGA Tray MP VTI508NL16 8Mbit 512K x 16 Industrial 3.3 45/55 2C/S 44TSOP2/48BGA Tray MP VTI508NB16 8Mbit 512K x 16 Industrial 5.0 45/55 1C/S 44TSOP2/48BGA Tray MP VTI508HL16 8Mbit 512K x 16 Industrial 5.0 45/55 2C/S 48BGA Tray MP VTI508HB16 16Mbit 1M x 16 Industrial 3.3 45/55 2C/S 48BGA Tray MP VTI516NB16