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Datasheet Replacement Marking Code
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25LC128
AT89C51R (54)AT89C51 (181)AT89C5 (195)AT89C (220)AT89 (400)AT8 (261)
Atmel

AT89C51RC-24JU

8051 89C Microcontroller IC 8-Bit 24MHz 32KB (32K x 8) FLASH 44-PLCC (16.59x16.59)
Atmel

AT89C51RD2-SLRUM

80C51 89C Microcontroller IC 8-Bit 60MHz 64KB (64K x 8) FLASH 44-PLCC (16.59x16.59)
Atmel

AT89C51RB2-SLSUM

80C51 89C Microcontroller IC 8-Bit 60MHz 16KB (16K x 8) FLASH 44-PLCC (16.59x16.59)
Atmel

AT89C51RC2-SLSUM

80C51 89C Microcontroller IC 8-Bit 60MHz 32KB (32K x 8) FLASH 44-PLCC (16.59x16.59)
Atmel

AT89C51RD2-SLSUM

80C51 89C Microcontroller IC 8-Bit 60MHz 64KB (64K x 8) FLASH 44-PLCC (16.59x16.59)
Atmel

AT89C51RD2-RLTUM

80C51 89C Microcontroller IC 8-Bit 60MHz 64KB (64K x 8) FLASH 44-VQFP (10x10)
Atmel

AT89C51RC-24PU

8051 89C Microcontroller IC 8-Bit 24MHz 32KB (32K x 8) FLASH 40-PDIL
Atmel

AT89C51RB2-RLTUM

80C51 89C Microcontroller IC 8-Bit 60MHz 16KB (16K x 8) FLASH 44-VQFP (10x10)
Atmel

AT89C51RC2-RLTUM

80C51 89C Microcontroller IC 8-Bit 60MHz 32KB (32K x 8) FLASH 44-VQFP (10x10)
Atmel

AT89C51RC2-RLTUL

80C51 89C Microcontroller IC 8-Bit 40MHz 32KB (32K x 8) FLASH 44-VQFP (10x10)
Atmel

AT89C51RC2-SLSUL

80C51 89C Microcontroller IC 8-Bit 40MHz 32KB (32K x 8) FLASH 44-PLCC (16.59x16.59)
Atmel

AT89C51RC-24AU

8051 89C Microcontroller IC 8-Bit 24MHz 32KB (32K x 8) FLASH 44-TQFP (10x10)
Atmel

AT89C51RB2-SLSUL

80C51 89C Microcontroller IC 8-Bit 40MHz 16KB (16K x 8) FLASH 44-PLCC (16.59x16.59)
Atmel

AT89C51RB2-RLRUL

80C51 89C Microcontroller IC 8-Bit 40MHz 16KB (16K x 8) FLASH 44-VQFP (10x10)
Atmel

AT89C51RB2-SLRUM

80C51 89C Microcontroller IC 8-Bit 60MHz 16KB (16K x 8) FLASH 44-PLCC (16.59x16.59)
Atmel

AT89C51RB2-SLRUL

80C51 89C Microcontroller IC 8-Bit 40MHz 16KB (16K x 8) FLASH 44-PLCC (16.59x16.59)
Atmel

AT89C51RB2-RLTUL

80C51 89C Microcontroller IC 8-Bit 40MHz 16KB (16K x 8) FLASH 44-VQFP (10x10)
Atmel

AT89C51RD2-RLRUM

80C51 89C Microcontroller IC 8-Bit 60MHz 64KB (64K x 8) FLASH 44-VQFP (10x10)
Atmel

AT89C51RC2-SLRUM

80C51 89C Microcontroller IC 8-Bit 60MHz 32KB (32K x 8) FLASH 44-PLCC (16.59x16.59)
Atmel

AT89C51RC2-RLRIL

80C51 89C Microcontroller IC 8-Bit 40MHz 32KB (32K x 8) FLASH 44-VQFP (10x10)
Atmel

AT89C51RC2-3CSUM

80C51 89C Microcontroller IC 8-Bit 60MHz 32KB (32K x 8) FLASH 40-PDIL
Atmel

AT89C51RB2-3CSUM

80C51 89C Microcontroller IC 8-Bit 60MHz 16KB (16K x 8) FLASH 40-PDIL
Atmel

AT89C51RC-24AC

8051 89C Microcontroller IC 8-Bit 24MHz 32KB (32K x 8) FLASH 44-TQFP (10x10)
Atmel

AT89C51RC-24AI

8051 89C Microcontroller IC 8-Bit 24MHz 32KB (32K x 8) FLASH 44-TQFP (10x10)
Atmel

AT89C51RC-24JC

8051 89C Microcontroller IC 8-Bit 24MHz 32KB (32K x 8) FLASH 44-PLCC (16.59x16.59)
Atmel

AT89C51RC-24JI

8051 89C Microcontroller IC 8-Bit 24MHz 32KB (32K x 8) FLASH 44-PLCC (16.59x16.59)
Atmel

AT89C51RC-24PC

8051 89C Microcontroller IC 8-Bit 24MHz 32KB (32K x 8) FLASH 40-PDIL
Atmel

AT89C51RC-24PI

8051 89C Microcontroller IC 8-Bit 24MHz 32KB (32K x 8) FLASH 40-PDIL
Atmel

AT89C51RB2-3CSIM

80C51 89C Microcontroller IC 8-Bit 60MHz 16KB (16K x 8) FLASH 40-PDIL
Atmel

AT89C51RB2-RLTIM

80C51 89C Microcontroller IC 8-Bit 60MHz 16KB (16K x 8) FLASH 44-VQFP (10x10)
Atmel

AT89C51RB2-SLSIL

80C51 89C Microcontroller IC 8-Bit 40MHz 16KB (16K x 8) FLASH 44-PLCC (16.59x16.59)
Atmel

AT89C51RB2-SLSIM

80C51 89C Microcontroller IC 8-Bit 60MHz 16KB (16K x 8) FLASH 44-PLCC (16.59x16.59)
Atmel

AT89C51RC2-3CSIM

80C51 89C Microcontroller IC 8-Bit 60MHz 32KB (32K x 8) FLASH 40-PDIL
Atmel

AT89C51RC2-RLTIM

80C51 89C Microcontroller IC 8-Bit 60MHz 32KB (32K x 8) FLASH 44-VQFP (10x10)
Atmel

AT89C51RC2-SLSIM

80C51 89C Microcontroller IC 8-Bit 60MHz 32KB (32K x 8) FLASH 44-PLCC (16.59x16.59)
Atmel

AT89C51RD2-RLTIM

80C51 89C Microcontroller IC 8-Bit 60MHz 64KB (64K x 8) FLASH 44-VQFP (10x10)
Atmel

AT89C51RD2-SLSIM

80C51 89C Microcontroller IC 8-Bit 60MHz 64KB (64K x 8) FLASH 44-PLCC (16.59x16.59)
Atmel

AT89C51RC2-SLRIM

80C51 89C Microcontroller IC 8-Bit 60MHz 32KB (32K x 8) FLASH 44-PLCC (16.59x16.59)
Atmel

AT89C51RD2-SLRIM

80C51 89C Microcontroller IC 8-Bit 60MHz 64KB (64K x 8) FLASH 44-PLCC (16.59x16.59)
Atmel

AT89C51RB2-SLRIM

80C51 89C Microcontroller IC 8-Bit 60MHz 16KB (16K x 8) FLASH 44-PLCC (16.59x16.59)
Atmel

AT89C51RB2-SLRIL

80C51 89C Microcontroller IC 8-Bit 40MHz 16KB (16K x 8) FLASH 44-PLCC (16.59x16.59)
Atmel

AT89C51RC2-SLRIL

80C51 89C Microcontroller IC 8-Bit 40MHz 32KB (32K x 8) FLASH 44-PLCC (16.59x16.59)
Atmel

AT89C51RB2-RLRIM

80C51 89C Microcontroller IC 8-Bit 60MHz 16KB (16K x 8) FLASH 44-VQFP (10x10)
Atmel

AT89C51RB2-RLRIL

80C51 89C Microcontroller IC 8-Bit 40MHz 16KB (16K x 8) FLASH 44-VQFP (10x10)
Atmel

AT89C51RC2-RLRIM

80C51 89C Microcontroller IC 8-Bit 60MHz 32KB (32K x 8) FLASH 44-VQFP (10x10)
Atmel

AT89C51RD2-RLRIM

80C51 89C Microcontroller IC 8-Bit 60MHz 64KB (64K x 8) FLASH 44-VQFP (10x10)
Atmel

AT89C51RC2-SLRUL

80C51 89C Microcontroller IC 8-Bit 40MHz 32KB (32K x 8) FLASH 44-PLCC (16.59x16.59)
Atmel

AT89C51RE2-SLSUM

80C51 89C Microcontroller IC 8-Bit 60MHz 128KB (128K x 8) FLASH 44-PLCC (16.59x16.59)
Atmel

AT89C51RB2-3CSUL

80C51 89C Microcontroller IC 8-Bit 40MHz 16KB (16K x 8) FLASH 40-PDIL
Atmel

AT89C51RE2-RLTUM

80C51 89C Microcontroller IC 8-Bit 60MHz 128KB (128K x 8) FLASH 44-VQFP (10x10)
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