Micro controller IC

Part No. ROM Type ROM RAM I/O External Memory Space SPEED MHz Timer/ Counter Int Special Function PACKAGE PDIP PLCC PQFP W77C32 ROMless - 1K+256 36 64K 40 3 12 -4 clocks / machine cycle -Dual UARTs and DPTRs-Wait-state control signal-WDT -On-chip 1K Bytes MOVX SRAM -Extra I/O port 40 44 44 W77L32 ROMless - 1K+256 36 64K 25 3 12 -4 clocks / machine cycle -5.5V~2.7V Supply Voltage-Dual UARTs and DPTRs-Wait-state control signal-WDT -On-chip 1K Bytes MOVX SRAM -Extra I/O port 40 44 44 W77C58 Mask 32K 1K+256 36 64K 40 3 12 -4 clocks / machine cycle -Dual UARTs and DPTRs -Wait-state control signal-WDT -On-chip 1K Bytes MOVX SRAM-Extra I/O port 40 44 44 W77C516 Mask 64K 1K+256 36 64K 40 3 12 -4 clocks / machine cycle -Dual UARTs and DPTRs -Wait-state control signal-WDT -On-chip 1K Bytes MOVX SRAM-Extra I/O port 40 44 44 W77E58 Flash EPROM 32K 1K+256 36 64K 40 3 12 -4 clocks / machine cycle -Dual UARTs and DPTRs -Wait-state control signal-WDT -On-chip 1K Bytes MOVX SRAM -Extra I/O port 40 44 44 W77LE58 Flash EPROM 32K 1K+256 36 64K 25 3 12 -4 clocks / machine cycle -5.5V~2.7V Supply Voltage-Dual UARTs and DPTRs -Wait-state control signal-WDT-On-chip 1K Bytes MOVX SRAM -Extra I/O port 40 44 44