SAB80C537-N Infineon Technologies, SAB80C537-N Datasheet - Page 26

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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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Compare/Capture Unit (CCU)
The compare capture unit is a complex timer/register array for applications that require high
speed I/O, pulse width modulation and more timer/counter capabilities. The CCU contains
– one 16-bit timer/counter (timer 2) with 2-bit prescaler, reload capability and a max. clock
– one 16-bit timer (compare timer) with 8-bit prescaler, reload capability and a max. clock
– thirteen 16-bit compare registers.
– five of which can be used as 16-bit capture registers.
– up to 21 output lines controlled by the CCU.
– seven interrupts which can be generated by CCU-events.
Figure 5 shows a block diagram of the CCU. Eight compare registers (CM0 to CM7) can
individually be assigned to either timer 2 or the compare timer. Diagrams of the two timers are
shown in figures 6 and 7. The four compare/capture registers and the compare/reload/capture
register are always connected to timer 2. Dependent on the register type and the assigned
timer two compare modes can be selected. Table 3 illustrates possible combinations and the
corresponding output lines.
Table 3
CCU Configuration
Assigned Timer
Timer 2
Compare timer
Semiconductor Group
frequency of f
frequency of f
OSC
OSC
Compare Register
CRCH/CRCL
CC1H/CC1L
CC2H/CC2L
CC3H/CC3L
CC4H/CC4L
CC4H/CC4L
CC4H/CC4L
CM0H/CM0L
CM7H/CM7L
CM0H/CM0L
CM7H/CM7L
/2 (6 MHz with a 12 MHz crystal).
/12 (1 MHz with a 12 MHz crystal).
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Compare Output at Possible Modes
P1.0/INT3/CC0
P1.0/INT4/CC1
P1.0/INT5/CC2
P1.0/INT6/CC3
P1.0/INT2/CC4
P5.0/CCM0
P5.7/CCM7
P4.0/CM0
P4.7/CM7
P4.0/CM0
P4.7/CM7
25
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:
:
:
Comp. mode 0, 1 + Reload
Comp. mode 0, 1
Comp. mode 0, 1
Comp. mode 0, 1
Comp. mode 0, 1
Comp. mode 1
Comp. mode 1
Comp. mode 1
Comp. mode 1
Comp. mode 0
(with add. latches)
Comp. mode 0
(with shadow latches)
SAB 80C517/80C537
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