SAB80C537-N Infineon Technologies, SAB80C537-N Datasheet - Page 35

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SAB80C537-N

Manufacturer Part Number
SAB80C537-N
Description
IC MIRCROCONTROLLER 8BIT 84PLCC
Manufacturer
Infineon Technologies
Datasheet

Specifications of SAB80C537-N

Core Processor
8051
Core Size
8-Bit
Speed
12MHz
Connectivity
EBI/EMI, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
56
Program Memory Type
ROMless
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 12x8b
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Package / Case
84-LCC (J-Lead)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
Q1612975

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Multiplication/Division Unit
This on-chip arithmetic unit provides fast 32-bit division, 16-bit multiplication as well as shift and
normalize features. All operations are integer operations.
Operation
32-bit/16-bit
16-bit/16-bit
16-bit 16-bit
32-bit normalize
32-bit shift left/right
1)
2)
The MDU consists of six registers used for operands and results and one control register.
Operation of the MDU can be divided in three phases:
Figure 10
Operation of the MDU
To start an operation, register MD0 to MD5 (or ARCON) must be written to in a certain
sequence according to table 5 or 6. The order the registers are accessed determines the type
of the operation. A shift operation is started by a final write operation to register ARCON (see
also the register description).
Semiconductor Group
1
The maximal shift speed is 6 shifts/cycle.
t
cy = 1 s @ 12 MHz oscillator frequency.
Result
32-bit
16-bit
32-bit
34
Remainder
16-bit
16-bit
SAB 80C517/80C537
Execution Time
6 t
4
4 t
6 t
6 t
t cy
cy
cy
cy
cy
1
2
2
)
)
)