Part number: W77C32
ROM Type: ROMless
ROM: -
RAM: 1K+256
I/O Pins: 36
External Memory Space: 64K
SPEED MHz: 40
Timer/ Counter: 3
Int: 12
Special Function: -4 clocks / machine cycle -Dual UARTs and DPTRs-Wait-state control signal-WDT -On-chip 1K Bytes MOVX SRAM -Extra I/O port
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W77C516
ROM Type: Mask
ROM: 64K
RAM: 1K+256
I/O Pins: 36
External Memory Space: 64K
SPEED MHz: 40
Timer/ Counter: 3
Int: 12
Special Function: -4 clocks / machine cycle -Dual UARTs and DPTRs -Wait-state control signal-WDT -On-chip 1K Bytes MOVX SRAM-Extra I/O port
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W77C58
ROM Type: Mask
ROM: 32K
RAM: 1K+256
I/O Pins: 36
External Memory Space: 64K
SPEED MHz: 40
Timer/ Counter: 3
Int: 12
Special Function: -4 clocks / machine cycle -Dual UARTs and DPTRs -Wait-state control signal-WDT -On-chip 1K Bytes MOVX SRAM-Extra I/O port
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W77E58
ROM Type: Flash EPROM
ROM: 32K
RAM: 1K+256
I/O Pins: 36
External Memory Space: 64K
SPEED MHz: 40
Timer/ Counter: 3
Int: 12
Special Function: -4 clocks / machine cycle -Dual UARTs and DPTRs -Wait-state control signal-WDT -On-chip 1K Bytes MOVX SRAM -Extra I/O port
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W77IC32
ROM Type: ROMless
ROM: -
RAM: 1K+256
I/O Pins: 32
External Memory Space: 64 K
SPEED MHz: 5.5V ~ 2.7V
Timer/ Counter: 3
Int: 6
Special Function: -4 clocks / machine cycle-Dual UARTs and DPTRs -Wait-state control signal-WDT -On-chip 1K Bytes MOVX SRAM -Extra I/O port
Package PDIP: 40
Package PLCC: 44
Package PQFP: -
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Part number: W77IE58
ROM Type: Flash EPROM
ROM: 32K
RAM: 1K+256
I/O Pins: 32/36
External Memory Space: 64 K
SPEED MHz: 5.5V ~ 2.7V
Timer/ Counter: 3+watchdog Timer
Int: 13
Special Function: -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
Package PDIP: 40
Package PLCC: 44
Package PQFP: -
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Part number: W77L32
ROM Type: ROMless
ROM: -
RAM: 1K+256
I/O Pins: 36
External Memory Space: 64K
SPEED MHz: 25
Timer/ Counter: 3
Int: 12
Special Function: -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
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W77LE58
ROM Type: Flash EPROM
ROM: 32K
RAM: 1K+256
I/O Pins: 36
External Memory Space: 64K
SPEED MHz: 25
Timer/ Counter: 3
Int: 12
Special Function: -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
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78C32C
ROM Type: ROMless
ROM: -
RAM: 256
I/O Pins: 32
External Memory Space: 64 K
SPEED MHz: 40
Timer/ Counter: 3
Int: 6
Special Function: CMOS General purpose
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78C438C
ROM Type: ROMless
ROM: -
RAM: 256
I/O Pins: 40
External Memory Space: 1 M
SPEED MHz: 40
Timer/ Counter: 3
Int: 8
Special Function: -5 pure ports I/O expanded-1 MB external memory space -Additional INT2, INT3
Package PDIP: -
Package PLCC: 84
Package PQFP: 100
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Part number: W78C516
ROM Type: Mask
ROM: 64K
RAM: 512
I/O Pins: 32/36
External Memory Space: 64 K
SPEED MHz: 40
Timer/ Counter: 3
Int: 6/8
Special Function: - 64 KB Mask ROM size - Extra I/O Port, / INT2, /INT3
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78C51D
ROM Type: Mask
ROM: 4K
RAM: 128
I/O Pins: 32
External Memory Space: 64 K
SPEED MHz: 40
Timer/ Counter: 2
Int: 5
Special Function: CMOS General purpose
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78C52D
ROM Type: Mask
ROM: 8K
RAM: 256
I/O Pins: 32
External Memory Space: 64 K
SPEED MHz: 40
Timer/ Counter: 3
Int: 6
Special Function: CMOS General purpose
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78C54
ROM Type: Mask
ROM: 16K
RAM: 256
I/O Pins: 32/36
External Memory Space: 64 K
SPEED MHz: 40
Timer/ Counter: 3
Int: 6/8
Special Function: -16 KB Mask ROM size-Extra I/O Port, / INT2, /INT3
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78C58
ROM Type: Mask
ROM: 32K
RAM: 256
I/O Pins: 32/36
External Memory Space: 64 K
SPEED MHz: 40
Timer/ Counter: 3
Int: 6/8
Special Function: - 32 KB Mask ROM size-Extra I/O Port, / INT2, /INT3
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78C801
ROM Type: Mask
ROM: 4K
RAM: 256
I/O Pins: 36
External Memory Space: 64K
SPEED MHz: 40
Timer/ Counter: 2
Int: 12
Special Function: -Extra I/O Port -Wake-up the Power-Down mode -from Port1 interrupt -WDT
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78E516B
ROM Type: Flash EPROM
ROM: 64K
RAM: 512
I/O Pins: 32/36
External Memory Space: 64K
SPEED MHz: 40
Timer/ Counter: 3
Int: 6/8
Special Function: -Multiple-Time Programmable -In-system Programming -Extra I/O Port, / INT2, /INT3
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78E51B
ROM Type: Flash EPROM
ROM: 4K
RAM: 128
I/O Pins: 32
External Memory Space: 64 K
SPEED MHz: 40
Timer/ Counter: 2
Int: 5/7
Special Function: -Multiple-Time Programmable -Extra I/O Port, / INT2, /INT3-WDT
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78E52B
ROM Type: Flash EPROM
ROM: 8K
RAM: 256
I/O Pins: 32
External Memory Space: 64 K
SPEED MHz: 40
Timer/ Counter: 3
Int: 6/8
Special Function: -Multiple-Time Programmable-Extra I/O Port, / INT2, /INT3-WDT
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78E54B
ROM Type: Flash EPROM
ROM: 16K
RAM: 256
I/O Pins: 32/36
External Memory Space: 64 K
SPEED MHz: 40
Timer/ Counter: 3
Int: 6/8
Special Function: -Multiple-Time Programmable-Extra I/O Port, / INT2, /INT3-WDT
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78E58B
ROM Type: Flash EPROM
ROM: 32K
RAM: 256
I/O Pins: 32/36
External Memory Space: 64 K
SPEED MHz: 40
Timer/ Counter: 3
Int: 6/8
Special Function: -Multiple-Time Programmable -In-system Programming-Extra I/O Port, / INT2, /INT3
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78E858
ROM Type: Flash EPROM
ROM: 32K
RAM: 768
I/O Pins: 32/36
External Memory Space: 64K
SPEED MHz: 40
Timer/ Counter: 3
Int: 6/8
Special Function: -Multiple-Time Programmable-In-system Programming-128 bytes EEPROM-Extra I/O Port, / INT2, /INT3, 4 channels PWM
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78IE52
ROM Type: Flash EPROM
ROM: 8K
RAM: 256
I/O Pins: 32/36
External Memory Space: 64 K
SPEED MHz: 5.5V ~ 2.4V
Timer/ Counter: 3+watchdog Timer
Int: 6/8
Special Function: -Multiple-Time Programmable-Extra I/O Port, / INT2, /INT3, WDT
Package PDIP: 40
Package PLCC: 44
Package PQFP: -
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Part number: W78IE54
ROM Type: Flash EPROM
ROM: 16K
RAM: 256
I/O Pins: 32/36
External Memory Space: 64 K
SPEED MHz: 5.5V ~ 2.4V
Timer/ Counter: 3+watchdog Timer
Int: 8
Special Function: -Multiple-Time Programmable-Extra I/O Port, / INT2, /INT3, WDT
Package PDIP: 40
Package PLCC: 44
Package PQFP: -
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Part number: W78L32
ROM Type: ROMless
ROM: -
RAM: 256
I/O Pins: 32
External Memory Space: 64 K
SPEED MHz: 5.5V ~ 1.8V
Timer/ Counter: 3
Int: 6
Special Function: CMOS General purpose
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78L51
ROM Type: Mask
ROM: 4K
RAM: 128
I/O Pins: 32/36
External Memory Space: 64 K
SPEED MHz: 5.5V ~ 1.8V
Timer/ Counter: 2
Int: 7
Special Function: -Extra I/O Port, /INT2, /INT3, -WDT
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78L52
ROM Type: Mask
ROM: 8K
RAM: 256
I/O Pins: 32/36
External Memory Space: 64 K
SPEED MHz: 5.5V ~ 1.8V
Timer/ Counter: 3
Int: 8
Special Function: -Extra I/O Port, /INT2, /INT3, -WDT
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78L54
ROM Type: Mask
ROM: 16K
RAM: 256
I/O Pins: 32/36
External Memory Space: 64 K
SPEED MHz: 5.5V ~ 1.8V
Timer/ Counter: 3
Int: 8
Special Function: -16 KB Mask ROM size -Extra I/O Port, / INT2, /INT3 ,WDT
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78L801
ROM Type: Mask
ROM: 4K
RAM: 256
I/O Pins: 36
External Memory Space: 64K
SPEED MHz: 5.5V ~ 1.8V
Timer/ Counter: 2
Int: 12
Special Function: -Extra I/O Port-Wake-up the Power-Down mode from Port1 interrupt-WDT
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78LE51
ROM Type: Flash EPROM
ROM: 4K
RAM: 128
I/O Pins: 32/36
External Memory Space: 64 K
SPEED MHz: 5.5V ~ 2.4V
Timer/ Counter: 2
Int: 7
Special Function: -Multiple-Time Programmable -Extra I/O Port, / INT2, /INT3, WDT
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78LE516
ROM Type: Flash EPROM
ROM: 64K
RAM: 512
I/O Pins: 32/36
External Memory Space: 64 K
SPEED MHz: 5.5V ~ 2.4V
Timer/ Counter: 3
Int: 8
Special Function: -Multiple-Time Programmable-In-system Programming -Extra I/O Port, / INT2, /INT3
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78LE52
ROM Type: Flash EPROM
ROM: 8K
RAM: 256
I/O Pins: 32/36
External Memory Space: 64 K
SPEED MHz: 5.5V ~ 2.4V
Timer/ Counter: 3
Int: 8
Special Function: -Multiple-Time Programmable-Extra I/O Port, / INT2, /INT3, WDT
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78LE54
ROM Type: Flash EPROM
ROM: 16K
RAM: 256
I/O Pins: 32/36
External Memory Space: 64 K
SPEED MHz: 5.5V ~ 2.4V
Timer/ Counter: 3
Int: 8
Special Function: -Multiple-Time Programmable -Extra I/O Port, / INT2, /INT3, WDT
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78LE58
ROM Type: Flash EPROM
ROM: 32K
RAM: 256
I/O Pins: 32/36
External Memory Space: 64 K
SPEED MHz: 5.5V ~ 2.4V
Timer/ Counter: 3
Int: 8
Special Function: -Multiple-Time Programmable-In-system Programming -Extra I/O Port, / INT2, /INT3
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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Part number: W78LE812
ROM Type: Flash EPROM
ROM: 8K
RAM: 256
I/O Pins: 36
External Memory Space: 64K
SPEED MHz: 5.5V ~ 2.4V
Timer/ Counter: 3
Int: 14
Special Function: -Extra I/O Port-Wake-up the Power-Down mode from Port1 interrupt-WDT-UART
Package PDIP: 40
Package PLCC: 44
Package PQFP: 44
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