ADUC841BSZ62-5 Analog Devices Inc, ADUC841BSZ62-5 Datasheet - Page 59
![IC ADC/DAC 12BIT W/MCU 52-MQFP](/photos/6/65/66517/505-52-mqfp_sml.jpg)
ADUC841BSZ62-5
Manufacturer Part Number
ADUC841BSZ62-5
Description
IC ADC/DAC 12BIT W/MCU 52-MQFP
Manufacturer
Analog Devices Inc
Series
MicroConverter® ADuC8xxr
Datasheet
1.EVAL-ADUC842QS.pdf
(88 pages)
Specifications of ADUC841BSZ62-5
Core Size
8-Bit
Program Memory Size
62KB (62K x 8)
Core Processor
8052
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
DMA, PSM, PWM, Temp Sensor, WDT
Number Of I /o
32
Program Memory Type
FLASH
Ram Size
2.25K x 8
Voltage - Supply (vcc/vdd)
4.75 V ~ 5.25 V
Data Converters
A/D 8x12b, D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
52-MQFP, 52-PQFP
Controller Family/series
(8051) 8052
No. Of I/o's
32
Ram Memory Size
2.25KB
Cpu Speed
20MIPS
No. Of Timers
3
No. Of Pwm Channels
2
Embedded Interface Type
UART
Rohs Compliant
Yes
Cpu Family
ADuC8xx
Device Core
8052
Device Core Size
8b
Frequency (max)
20MHz
Interface Type
I2C/SPI/UART
Total Internal Ram Size
2.25KB
# I/os (max)
34
Number Of Timers - General Purpose
3
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (max)
5.25V
Operating Supply Voltage (min)
4.75V
On-chip Adc
8-chx12-bit
On-chip Dac
2-chx12-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
52
Package Type
MQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
EVAL-ADUC841QSZ - KIT DEV FOR ADUC841 QUICK START
Eeprom Size
-
Lead Free Status / Rohs Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ADUC841BSZ62-5
Manufacturer:
Analog Devices Inc
Quantity:
135
Company:
Part Number:
ADUC841BSZ62-5
Manufacturer:
Analog Devices Inc
Quantity:
10 000
MOSI is shared with P3.3 and, as such, has the same
configuration as the one shown in Figure 61.
BITS
SFR
MCO
MDE
I2C M
MCI
(MASTER/SLAVE)
SPE = 0 (I
HARDWARE SPI
Figure 64. SDATA/MOSI Pin I/O Functional Equivalent in SPI Mode
Figure 65. SDATA/MOSI Pin I/O Functional Equivalent in I
HARDWARE I
SPE = 0 (I
(SLAVE ONLY)
Figure 63. SCLOCK Pin I/O Functional Equivalent in I
HARDWARE I
(SLAVE ONLY)
BITS
MCO
I2C M
SFR
SPE = 1 (SPI ENABLE)
2
C ENABLE)
2
C ENABLE)
REJECTION FILTER
2
C
50ns GLITCH
REJECTION FILTER
2
C
50ns GLITCH
Q1
Q3
DV
DV
Q1
(OFF)
Q 3
DD
DD
Q2 (OFF)
Q4 (OFF)
DV
Q1
(OFF)
Q3
Q 2
Q 4
DD
SCLOCK
PIN
2
Q 2
Q 4
C Mode
SDATA/
2
MOSI
SDATA/
C Mode
PIN
MOSI
PIN
Rev. 0 | Page 59 of 88
Read-Modify-Write Instructions
Some 8051 instructions that read a port read the latch while
others read the pin. The instructions that read the latch rather
than the pins are the ones that read a value, possibly change it,
and then rewrite it to the latch. These are called read-modify-
write instructions, which are listed below. When the destination
operand is a port or a port bit, these instructions read the latch
rather than the pin.
Table 27. Read-Write-Modify Instructions
Instruction
ANL
ORL
XRL
JBC
CPL
INC
DEC
DJNZ
MOV PX.Y, C
CLR PX.Y
SETB PX.Y
1
Read-modify-write instructions are directed to the latch rather
than to the pin to avoid a possible misinterpretation of the
voltage level of a pin. For example, a port pin might be used to
drive the base of a transistor. When 1 is written to the bit, the
transistor is turned on. If the CPU then reads the same port bit
at the pin rather than the latch, it reads the base voltage of the
transistor and interprets it as a Logic 0. Reading the latch rather
than the pin returns the correct value of 1.
These instructions read the port byte (all 8 bits), modify the addressed bit,
and then write the new byte back to the latch.
1
1
1
Description
Logical AND, e.g., ANL P1, A
(Logical OR, e.g., ORL P2, A
(Logical EX-OR, e.g., XRL P3, A
Jump if Bit = 1 and clear bit, e.g., JBC P1.1,
LABEL
Complement bit, e.g., CPL P3.0
Increment, e.g., INC P2
Decrement, e.g., DEC P2
Decrement and Jump if Not Zero, e.g., DJNZ
P3, LABEL
Move Carry to Bit Y of Port X
Clear Bit Y of Port X
Set Bit Y of Port X
ADuC841/ADuC842/ADuC843