AT89C51AC2-RLTUM Atmel, AT89C51AC2-RLTUM Datasheet - Page 119

• Manufacturer Part Number: AT89C51AC2-RLTUM
• Description: IC 8051 MCU FLASH 32K 44VQFP
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C51AC2-RLTUM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 34
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 1.25K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Processor Series: AT89x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 1280 B
• Interface Type: UART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 34
• Number Of Timers: 3
• Operating Supply Voltage: 3 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• For Use With: AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4127H–8051–02/08
Operation Cross Memory Access ..................................................... 44
Sharing Instructions........................................................................... 45
In-System Programming (ISP)........................................................... 47
Serial I/O Port...................................................................................... 51
Timers/Counters ................................................................................. 57
Timer 2................................................................................................. 66
Watchdog Timer ................................................................................. 71
Programmable Counter Array (PCA) ................................................ 75
Registers............................................................................................................. 43
Flash Programming and Erasure........................................................................ 47
Boot Process ...................................................................................................... 48
Application Programming Interface..................................................................... 49
XROW Bytes....................................................................................................... 49
Hardware Security Byte ...................................................................................... 50
Automatic Address Recognition.......................................................................... 52
Given Address .................................................................................................... 53
Broadcast Address ............................................................................................. 53
Registers............................................................................................................. 54
Timer/Counter Operations .................................................................................. 57
Timer 0................................................................................................................ 57
Timer 1................................................................................................................ 60
Interrupt .............................................................................................................. 60
Registers............................................................................................................. 62
Programmable Clock-Output .............................................................................. 67
Registers............................................................................................................. 68
Watchdog Programming ..................................................................................... 72
Watchdog Timer During Power-down Mode and Idle ......................................... 73
PCA Timer .......................................................................................................... 75
PCA Modules...................................................................................................... 76
PCA Interrupt ...................................................................................................... 77
PCA Capture Mode............................................................................................. 77
16-bit Software Timer Mode ............................................................................... 78
High Speed Output Mode ................................................................................... 79
Pulse Width Modulator Mode.............................................................................. 79
PCA Watchdog Timer ......................................................................................... 80
PCA Registers .................................................................................................... 81
Framing Error Detection .................................................................................... 51
Auto-Reload Mode............................................................................................. 66
A/T89C51AC2
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