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ST72E121 Fiches technique(PDF) 34 Page - STMicroelectronics

No de pièce ST72E121
Description  8-BIT MCU WITH 8 TO 16K OTP/EPROM, 384 TO 512 BYTES RAM, WDG, SCI, SPI AND 2 TIMERS
PDF  92 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72E121 Fiches technique(HTML) 34 Page - STMicroelectronics

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ST72E121 ST72T121
16-BIT TIMER (Cont’d)
Figure 21. Timer Block Diagram
MCU-PERIPHERAL INTERFACE
COUNTER
ALTERNATE
REGIST ER
OUTPUT
COMPARE
REGISTER
OUTPUT COMPARE
EDGE DETECT
OVERFLOW
DETECT
CIRCUIT
1/2
1/4
1/8
8-bit
buffer
ST7 INTERNAL BUS
LATCH1
OCMP1
ICAP1
EXTCLK
fCPU
TIMER INTERRUPT
ICF2
ICF1
0
0
0
OCF2
OCF1 TOF
PWM
OC1E
EXEDG
IEDG2
CC0
CC1
OC2E OPM
FOLV2
ICIE
OLVL1
IEDG1
OLVL2
FOLV1
OCIE TOIE
ICAP2
LATCH2
OCMP2
8
8
8 low
16
8 high
16
16
16
16
CR1
CR2
SR
6
16
88
8
8
88
EXEDG
TIMER INTERNAL BUS
CIRCUIT1
EDGE DETECT
CIRCUIT2
CIRCUIT
1
OUTPUT
COMPARE
REGIST ER
2
INPUT
CAPTURE
REGISTER
1
INPUT
CAPTURE
REGISTER
2
CC1 CC0
16 BIT
FREE RUNNING
COUNTER
34



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