8-bit 8051 Microcontrollers


Standard 8051


All ICs are RoHS compliant.

* Status: P - mass production, S - samples, UD - under development, N - not recommended for new design.

Chip Description Application Flash SRAM Data FlashLoader FlashProgramm.
methods		Clock
  frequency  		Supply
  voltage  
[V]		Operating
temperature
[°C]		   Package   Status *
N78E055A
  • 6T/12T per machine cycle
  • application Flash memory programmed in ISP mode
  • 1 external crystal oscillator and 2 internal RC oscillators
  • up to 40 I/O pins - five 8-bit ports
  • 5 x 8-bit PWM outputs
  • 3 x 16-bit timers/counters
  • Watchdog
  • UART, SPI interfaces
  • 11 interrupts
  • 4-level BOD
  • power saving modes: Idle, Power-down
  • temperature range: industrial
16 KB256 B + 1 KB4 KB2.5 KBISPExt. crystal:
4 - 40 MHz

Int. RC:
22.1184 MHz (1%)
&
22.1184 or 11.0592 MHz		2.4 – 5.5-40 – +85PDIP-40
PLCC-44
PQFP-44
LQFP-48		P
N78E059A32 KB256 B + 1 KB4 KB2.5 KBISPExt. crystal:
4 - 40 MHz

Int. RC:
22.1184 MHz (1%)
&
22.1184 or 11.0592 MHz		2.4 – 5.5-40 – +85PDIP-40
PLCC-44
PQFP-44
LQFP-48		P
N78E366A64 KB256 B + 1 KB-2.5 KBISPExt. crystal:
4 - 40 MHz

Int. RC:
22.1184 MHz (1%)
&
22.1184 or 11.0592 MHz		2.4 – 5.5-40 – +85PDIP-40
PLCC-44
PQFP-44
LQFP-48		P
N78E517A64 KB256 B + 1 KBconfigurable2.5 KBISPExt. crystal:
4 - 40 MHz

Int. RC:
22.1184 MHz (1%)
&
22.1184 or 11.0592 MHz		2.4 – 5.5-40 – +85PDIP-40
PLCC-44
PQFP-44
LQFP-48
TQFP-44		P
N79E352R
  • 4T per machine cycle
  • application Flash memory programmed in ICP mode
  • 1 external crystal oscillator and 2 internal RC oscillators
  • up to 38 I/O pins with LED drive capability
  • 2 x 8-bit PWM outputs
  • 3 x 16-bit timers/counters
  • Watchdog
  • UART, I2C interfaces
  • 11 interrupts
  • keyboard interface
  • 3-level LVD
  • power saving modes: Economy, Idle, Power-down
  • temperature range: industrial
8 KB256 B128-ISPExt. crystal:
4 - 24 MHz

Int. RC:
22.1184 MHz (2%)
&
22.1184 or 11.0592 MHz		2.4 – 5.5-40 – +85PDIP-40
LQFP-48		P
W77C032A
  • 4T per machine cycle
  • 1 external crystal oscillator
  • up to 36 I/O pins - four 8-bit ports and one extra 4-bit port
  • 3 x 16-bit timers/counters
  • Watchdog
  • 2 x UART, EBI (External Bus Interface)
  • 2 x DPTR
  • 12 interrupts
  • power saving modes: Economy, Idle, Power-down
  • commercial temperature range
-256 B + 1 KB---40 MHz4.5 – 5.50 – +70DIP-40
PLCC-44
PQFP-44		P
W77E058A
  • 4T per machine cycle
  • 1 external crystal oscillator
  • up to 36 I/O pins - four 8-bit ports and one extra 4-bit port
  • 3 x 16-bit timers/counters
  • Watchdog
  • 2 x UART
  • 2 x DPTR
  • 12 interrupts
  • power saving modes: Economy, Idle, Power-down
  • commercial temperature range
32 KB256 B + 1 KB---40 MHz4.5 – 5.50 – +70DIP-40
PLCC-44
PQFP-44		P
W77E516A
  • 4T per machine cycle
  • application Flash memory programmed in ISP mode
  • 1 external crystal oscillator
  • up to 36 I/O pins - four 8-bit ports and one extra 4-bit port
  • 3 x 16-bit timers/counters
  • Watchdog
  • 2 x UART
  • 2 x DPTR
  • 12 interrupts
  • power saving modes: Economy, Idle, Power-down
  • commercial temperature range
64 KB256 B + 1 KB-4 KBISP40 MHz4.5 – 5.50 – +70DIP-40
PLCC-44
PQFP-44		P
W77E532A128 KB256 B + 1 KB-4 KBISP40 MHz4.5 – 5.50 – +70DIP-40
PLCC-44
PQFP-44		P
W77L032A
  • 4T per machine cycle
  • 1 external crystal oscillator
  • up to 36 I/O pins - four 8-bit ports and one extra 4-bit port
  • 3 x 16-bit timers/counters
  • Watchdog
  • 2 x UART
  • 2 x DPTR
  • 12 interrupts
  • power saving modes: Economy, Idle, Power-down
  • commercial temperature range
-256 B + 1 KB---20 MHz2.7 – 5.50 – +70PLCC-44
PQFP-44		P
W77L058A
  • 4T per machine cycle
  • 1 external crystal oscillator
  • up to 36 I/O pins - four 8-bit ports and one extra 4-bit port
  • 3 x 16-bit timers/counters
  • Watchdog
  • 2 x UART
  • 2 x DPTR
  • 12 interrupts
  • power saving modes: Economy, Idle, Power-down
  • commercial temperature range
32 KB256 B + 1 KB---20 MHz2.7 – 5.50 – +70DIP-40
PLCC-44
PQFP-44		P
W77L516A
  • 4T per machine cycle
  • application Flash memory programmed in ISP mode
  • 1 external crystal oscillator
  • up to 36 I/O pins - four 8-bit ports and one extra 4-bit port
  • 3 x 16-bit timers/counters
  • Watchdog
  • 2 x UART
  • 2 x DPTR
  • 12 interrupts
  • power saving modes: Economy, Idle, Power-down
  • commercial temperature range
64 KB256 B + 1 KB-4 KBISP20 MHz2.7 – 5.50 – +70DIP-40
PLCC-44
PQFP-44		P
W77L532A128 KB256 B + 1 KB-4 KBISP20 MHz2.7 – 5.50 – +70DIP-40
PLCC-44
PQFP-44		P
W78C032
  • 12T per machine cycle
  • 1 external crystal oscillator
  • up to 32 I/O pins - four 8-bit ports
  • 3 x 16-bit timers/counters
  • Watchdog
  • UART
  • 6 interrupts
  • power saving modes: Idle, Power-down
  • commercial temperature range
-256 B---40 MHz4.5 – 5.50 – +70PDIP-40
PQFP-44
PLCC-44		P
W78C438
  • 12T per machine cycle
  • 1 external crystal oscillator
  • up to 40 I/O pins - five 8-bit ports
  • 3 x 16-bit timers/counters
  • Watchdog
  • UART, EBI (External Bus Interface)
  • DPTR
  • 8 interrupts
  • power saving modes: Idle, Power-down
  • commercial temperature range
-256 B---40 MHz4.5 – 5.50 – +70PQFP-100P
W78E052D
  • 6T/12T per machine cycle
  • application Flash memory programmed in ISP mode
  • 1 external crystal oscillator
  • up to 36 I/O pins - four 8-bit ports and one extra 4-bit port
  • 3 x 16-bit timers/counters
  • Watchdog
  • UART
  • DPTR
  • 8 interrupts
  • power saving modes: Idle, Power-down
  • temperature range: industrial
8 KB256 B-2 KBISP40 MHz2.4 – 5.5-40 – +85PDIP-40
PQFP-44
LQFP-48
PLCC-44
TQFP-44		P
W78E054D16 KB256 B-2 KBISP40 MHz2.4 – 5.5-40 – +85PDIP-40
PQFP-44
LQFP-48
PLCC-44
TQFP-44		P
W78E058D32 KB512 B-4 KBISP40 MHz2.4 – 5.5-40 – +85PDIP-40
PQFP-44
LQFP-48
PLCC-44		P
W78E516D64 KB512 B-4 KBISP40 MHz2.4 – 5.5-40 – +85PDIP-40
PQFP-44
LQFP-48
PLCC-44		P
W78E858A
  • 12T per machine cycle
  • application Flash memory programmed in ISP mode
  • 128 B EEPROM
  • 1 external crystal oscillator
  • up to 36 I/O pins - four 8-bit ports and one extra 4-bit port
  • 3 x 16-bit timers/counters
  • Watchdog
  • UART
  • DPTR
  • 14 interrupts
  • power saving modes: Idle, Power-down
  • commercial temperature range
32 KB768 B-4 KBISP40 MHz4.5 – 5.50 – +70PDIP-40
PQFP-44
PLCC-44		P
W78ERD2A
  • 6T/12T per machine cycle
  • application Flash memory programmed in ISP mode
  • 1 external crystal oscillator
  • up to 36 I/O pins - four 8-bit ports and one extra 4-bit port with interrupt and Chip-Select functions
  • 3 x 16-bit timers/counters
  • UART
  • 9 interrupts
  • PCA (Programmable Counter Array) with 5 x 8-bit PWM, 5 x 16-bit Capture and Watchdog functions
  • data protection
  • power managements modes: normal, Idle, Power-down
  • temperature range: commercial
64 KB256 B + 1 KB-4 KBISP40 MHz4.5 – 5.50 – +70PDIP-40
PQFP-44
PLCC-44		P
W78IRD2A
  • 6T/12T per machine cycle
  • application Flash memory programmed in ISP mode
  • 1 external crystal oscillator
  • up to 36 I/O pins - four 8-bit ports and one extra 4-bit port with interrupt and Chip-Select functions
  • 3 x 16-bit timers/counters
  • UART
  • 9 interrupts
  • PCA (Programmable Counter Array) with 5 x 8-bit PWM, 5 x 16-bit Capture and Watchdog functions
  • data protection
  • power managements modes: normal, Idle, Power-down
  • temperature range: industrial
64 KB256 B + 1 KB-4 KBISP40 MHz2.7 – 5.5-40 – +85PDIP-40
PLCC-44		P
W79E632A
  • 4T per machine cycle
  • application Flash memory programmed in ISP mode
  • 1 external crystal oscillator
  • up to 36 I/O pins - four 8-bit ports and one extra 4-bit port with Chip-Select function
  • 3 x 16-bit timers/counters
  • 6 x 8-bit PWM outputs
  • UART
  • Watchdog
  • 7 interrupts/li>
  • data protection
  • power managements modes: normal, Idle, Power-down
  • temperature range: commercial
128 KB256 B + 1 KB-4 KBISP36.8 MHz4.5 – 5.50 – +70PLCC-44
PQFP-44		P
W79E633A
  • 4T per machine cycle
  • application Flash memory programmed in ISP mode
  • 1 external crystal oscillator
  • up to 36 I/O pins - four 8-bit ports and one extra 4-bit port with boot and Chip-Select functions
  • 3 x 16-bit timers/counters
  • 6 x 8-bit PWM outputs
  • UART, 2 x I2C
  • 4 x 10-bit ADC (up to 96 ksps)
  • Watchdog
  • 10 interrupts
  • data protection
  • power managements modes: normal, Idle, Power-down
  • temperature range: commercial
128 KB256 B + 1 KB-4 KBISP40 MHz4.5 – 5.50 – +70PLCC-44
PQFP-44		P
W79E658A
  • 4T per machine cycle
  • application Flash memory programmed in ISP mode via the JTAG interface
  • 1 external crystal oscillator
  • up to 60 I/O pins - seven 8-bit ports and one extra 4-bit port with boot and Chip-Select functions
  • 3 x 16-bit timers/counters
  • 6 x 8-bit PWM outputs
  • UART, 2 x I2C
  • 8 x 10-bit ADC (up to 96 ksps)
  • Watchdog
  • 10 interrupts
  • data protection
  • power managements modes: normal, Idle, Power-down
  • temperature range: commercial
128 KB256 B + 1 KB-4 KBISP40 MHz4.5 – 5.50 – +70PQFP-100P
W79E659A
  • 4T per machine cycle
  • application Flash memory programmed in ISP mode via the JTAG interface
  • 1 external crystal oscillator
  • up to 60 I/O pins - seven 8-bit ports and one extra 4-bit port with boot and Chip-Select functions
  • 3 x 16-bit timers/counters
  • 6 x 8-bit PWM outputs
  • UART, 2 x I2C
  • 8 x 10-bit ADC (up to 96 ksps)
  • Watchdog
  • 10 interrupts
  • data protection
  • power managements modes: normal, Idle, Power-down
  • temperature range: commercial
32 KB256 B + 1 KB-4 KBISP40 MHz4.5 – 5.50 – +70PQFP-100P
W79L632A
  • 4T per machine cycle
  • application Flash memory programmed in ISP mode
  • 1 external crystal oscillator
  • up to 36 I/O pins - four 8-bit ports and one extra 4-bit port with Chip-Select function
  • 3 x 16-bit timers/counters
  • 6 x 8-bit PWM outputs
  • UART
  • 4 x 10-bit ADC (up to 96 ksps)
  • Watchdog
  • 7 interrupts
  • data protection
  • power managements modes: normal, Idle, Power-down
  • temperature range: commercial
128 KB256 B + 1 KB-4 KBISP20 MHz3.3 – 5.50 – +70PLCC-44
PQFP-44		P
W79L633A
  • 4T per machine cycle
  • application Flash memory programmed in ISP mode
  • 1 external crystal oscillator
  • up to 36 I/O pins - four 8-bit ports and one extra 4-bit port with boot and Chip-Select functions
  • 3 x 16-bit timers/counters
  • 6 x 8-bit PWM outputs
  • UART, 2 x I2C
  • 4 x 10-bit ADC (up to 96 ksps)
  • Watchdog
  • 10 interrupts
  • data protection
  • power managements modes: normal, Idle, Power-down
  • temperature range: commercial
128 KB256 B + 1 KB-4 KBISP25 MHz3.0 – 4.50 – +70PLCC-44
PQFP-44		P
W79L658A
  • 4T per machine cycle
  • application Flash memory programmed in ISP mode via the JTAG interface
  • 1 external crystal oscillator
  • up to 60 I/O pins - seven 8-bit ports and one extra 4-bit port with boot and Chip-Select functions
  • 3 x 16-bit timers/counters
  • 6 x 8-bit PWM outputs
  • UART, 2 x I2C
  • 8 x 10-bit ADC (up to 96 ksps)
  • Watchdog
  • 10 interrupts
  • data protection
  • power managements modes: normal, Idle, Power-down
  • temperature range: commercial
128 KB256 B + 1 KB-4 KBISP25 MHz3.0 – 4.50 – +70PQFP-100P
W79L659A
  • 4T per machine cycle
  • application Flash memory programmed in ISP mode via the JTAG interface
  • 1 external crystal oscillator
  • up to 60 I/O pins - seven 8-bit ports and one extra 4-bit port with boot and Chip-Select functions
  • 3 x 16-bit timers/counters
  • 6 x 8-bit PWM outputs
  • UART, 2 x I2C
  • 8 x 10-bit ADC (up to 96 ksps)
  • Watchdog
  • 10 interrupts
  • data protection
  • power managements modes: normal, Idle, Power-down
  • temperature range: commercial
32 KB256 B + 1 KB-4 KBISP25 MHz3.0 – 4.50 – +70PQFP-100P


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