Micro controller IC

Part No. ROM Type ROM RAM I/O Pins External Memory Space SPEED MHz Timer/ Counter Int Special Function PACKAGE PDIP PLCC PQFP W78C32C ROMless - 256 32 64 K 40 3 6 CMOS General purpose 40 44 44 W78E51B Flash EPROM 4K 128 32 64 K 40 2 5/7 -Multiple-Time Programmable -Extra I/O Port, / INT2, /INT3-WDT 40 44 44 W78E52B Flash EPROM 8K 256 32 64 K 40 3 6/8 -Multiple-Time Programmable-Extra I/O Port, / INT2, /INT3-WDT 40 44 44 W78E54B Flash EPROM 16K 256 32/36 64 K 40 3 6/8 -Multiple-Time Programmable-Extra I/O Port, / INT2, /INT3-WDT 40 44 44 W78E58B Flash EPROM 32K 256 32/36 64 K 40 3 6/8 -Multiple-Time Programmable -In-system Programming-Extra I/O Port, / INT2, /INT3 40 44 44 W78E516B Flash EPROM 64K 512 32/36 64K 40 3 6/8 -Multiple-Time Programmable -In-system Programming -Extra I/O Port, / INT2, /INT3 40 44 44 W78E858 Flash EPROM 32K 768 32/36 64K 40 3 6/8 -Multiple-Time Programmable-In-system Programming-128 bytes EEPROM-Extra I/O Port, / INT2, /INT3, 4 channels PWM 40 44 44 W78C51D Mask 4K 128 32 64 K 40 2 5 CMOS General purpose 40 44 44 W78C52D Mask 8K 256 32 64 K 40 3 6 CMOS General purpose 40 44 44 W78C54 Mask 16K 256 32/36 64 K 40 3 6/8 -16 KB Mask ROM size-Extra I/O Port, / INT2, /INT3 40 44 44 W78C58 Mask 32K 256 32/36 64 K 40 3 6/8 - 32 KB Mask ROM size-Extra I/O Port, / INT2, /INT3 40 44 44 W78C516 Mask 64K 512 32/36 64 K 40 3 6/8 - 64 KB Mask ROM size - Extra I/O Port, / INT2, /INT3 40 44 44 W78C801 Mask 4K 256 36 64K 40 2 12 -Extra I/O Port -Wake-up the Power-Down mode -from Port1 interrupt -WDT 40 44 44 W78C438C ROMless - 256 40 1 M 40 3 8 -5 pure ports I/O expanded-1 MB external memory space -Additional INT2, INT3 - 84 1