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LC87F2708AUMD-AH Folha de dados(PDF) 3 Page - ON Semiconductor

Nome de Peças LC87F2708AUMD-AH
Descrição Electrónicos  8-bit Microcontroller
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Fabricante Electrônico  ONSEMI [ON Semiconductor]
Página de início  http://www.onsemi.com
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LC87F2708A
No.A1335-3/24
■ Analog Comparator
- Sends output to the P32/CMPO port (polarity selectable).
- Edge detection function (shared with INTC and also allows the selection of the noise filter function)
■ Watchdog Timer
- Can generate the internal reset signal on a timer overflow monitored by the WDT-dedicated low-speed
RC oscillation clock (30kHz).
- Allows selection of continue, stop, or hold mode operation of the counter on entry into the HALT/
HOLD mode.
■ Interrupt Source Flags
- 16 sources, 10 vector addresses
1) Provides three levels (low (L), high (H), and highest (X)) of multiplex interrupt control. Any
interrupt requests of the level equal to or lower than the current interrupt are not accepted.
2) When interrupt requests to two or more vector addresses occur at the same time, the interrupt of the
highest level takes precedence over the other interrupts. For interrupts of the same level, the interrupt
into the smallest vector address takes precedence.
No.
Vector Address
Level
Interrupt Source
1
00003H
X or L
INTA
2
0000BH
X or L
INTB
3
00013H
H or L
INTC/T0L/INTE
4
0001BH
H or L
INTD/INTF
5
00023H
H or L
T0H/SIO7
6
0002BH
H or L
T1L/T1H
7
00033H
H or L
HCT1
8
0003BH
H or L
HCT2
9
00043H
H or L
ADC/HPWM automatic stop/HPWM cycle
10
0004BH
H or L
None
- Priority levels X > H > L
- Of interrupts of the same level, the one with the smallest vector address takes precedence.
■ Subroutine Stack Levels: 256 levels maximum (The stack is allocated in RAM.)
■ High-speed Multiplication/Division Instructions
- 16 bits × 8 bits
(5 tCYC execution time)
- 24 bits × 16 bits
(12 tCYC execution time)
- 16 bits ÷ 8 bits
(8 tCYC execution time)
- 24 bits ÷ 16 bits
(12 tCYC execution time)
■ Oscillation Circuits
- Medium speed RC oscillation circuit (internal): For system clock
(1MHz)
- Low speed RC oscillation circuit (internal):
For watchdog timer (30kHz)
- High speed RC oscillation circuit (internal):
For system clock
(20MHz or 40MHz)
1) 2 source oscillation frequencies (20MHz or 40MHz) selectable for the high-speed RC oscillation
circuit by optional configuration.
■ System Clock Divider Function
- Can run on low current.
- The minimum instruction cycle selectable from 300ns, 600ns, 1.2
s, 2.4s, 4.8s, 9.6s, 19.2s,
38.4
s, and 76.8s (when high speed RC oscillation is selected for system clock.).


Nº de peça semelhante - LC87F2708AUMD-AH

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logo
ON Semiconductor
LC87F2708AUMD-AH ONSEMI-LC87F2708AUMD-AH Datasheet
235Kb / 24P
   8-bit Microcontroller
September, 2014 Ver. 1.02
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