ADUC847BS32-3 Analog Devices Inc, ADUC847BS32-3 Datasheet - Page 2

• Manufacturer Part Number: ADUC847BS32-3
• Description: IC FLASH MCU W/24BIT ADC 52-MQFP
• Manufacturer: Analog Devices Inc
• Series: MicroConverter® ADuC8xxr

Specifications of ADUC847BS32-3

• Core Processor: 8052
• Core Size: 8-Bit
• Speed: 12.58MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: POR, PSM, PWM, Temp Sensor, WDT
• Number Of I /o: 34
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 2.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 10x24b; D/A 1x12b, 2x16b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 52-MQFP, 52-PQFP
• For Use With: EVAL-ADUC847QSZ - KIT DEV QUICK START FOR ADUC847
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

ADuC845/ADuC847/ADuC848
TABLE OF CONTENTS
Specifications..................................................................................... 4
Abosolute Maximum Ratings ....................................................... 10
Pin Configurations and Function Descriptions ......................... 11
General Description ....................................................................... 15
Functional Description .................................................................. 20
Typical Performance Characteristics ........................................... 37
Functional Description .................................................................. 39
ESD Caution................................................................................ 10
8052 Instruction Set ................................................................... 18
Timer Operation......................................................................... 18
ALE............................................................................................... 18
External Memory Access........................................................... 18
Complete SFR Map .................................................................... 19
8051 Instruction Set ................................................................... 20
Memory Organization ............................................................... 22
Special Function Registers (SFRs)............................................ 24
ADC Circuit Information.......................................................... 26
Auxiliary ADC (ADuC845 Only) ............................................ 32
Reference Inputs ......................................................................... 32
Burnout Current Sources .......................................................... 32
Reference Detect Circuit ........................................................... 33
Sinc Filter Register (SF) ............................................................. 33
Σ-∆ Modulator ............................................................................ 33
Digital Filter ................................................................................ 33
ADC Chopping........................................................................... 34
Calibration................................................................................... 34
Programmable Gain Amplifier................................................. 35
Bipolar/Unipolar Configuration .............................................. 35
Data Output Coding .................................................................. 36
Excitation Currents .................................................................... 36
ADC Power-On .......................................................................... 36
Rev. B | Page 2 of 108
Hardware Design Considerations ................................................ 87
ADC SFR Interface..................................................................... 39
ADCSTAT (ADC Status Register) ........................................... 40
ADCMODE (ADC Mode Register)......................................... 41
ADC0CON1 (Primary ADC Control Register)..................... 43
ADC0CON2 (Primary ADC Channel Select Register) ........ 44
ADC1CON (Auxiliary ADC Control Register) (ADuC845
Only) ............................................................................................ 45
SF (ADC Sinc Filter Control Register) .................................... 46
ICON (Excitation Current Sources Control Register) .......... 47
Nonvolatile Flash/EE Memory Overview ............................... 48
Flash/EE Program Memory ...................................................... 49
User Download Mode (ULOAD)............................................. 50
Using Flash/EE Data Memory.................................................. 51
Flash/EE Memory Timing ........................................................ 52
DAC Circuit Information.......................................................... 53
Pulse-Width Modulator (PWM).............................................. 55
On-Chip PLL (PLLCON).......................................................... 60
I
SPI Serial Interface ..................................................................... 64
Using the SPI Interface .............................................................. 66
Dual Data Pointers ..................................................................... 67
Power Supply Monitor ............................................................... 68
Watchdog Timer......................................................................... 69
Time Interval Counter (TIC).................................................... 70
8052-Compatible On-Chip Peripherals .................................. 73
Timers/Counters ........................................................................ 75
UART Serial Interface................................................................ 80
Interrupt System ......................................................................... 85
Interrupt Priority........................................................................ 86
Interrupt Vectors ........................................................................ 86
External Memory Interface....................................................... 87
2
C Serial Interface ..................................................................... 61