ST72345C4 STMicroelectronics, ST72345C4 Datasheet - Page 95

• Manufacturer Part Number: ST72345C4
• Description: 8-bit MCU
• Manufacturer: STMicroelectronics

Specifications of ST72345C4

• Up To 16 Kbytes Program Memory: single voltage extended Flash (XFlash) with readout and write protection, in-circuit and inapplication programming (ICP and IAP). 10K write/erase cycles guaranteed, data retention
• 256 Bytes Data Eeprom With Readout Protection. 300k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55 °C.
• Clock Sources: crystal/ceramic resonator oscillators, high-accuracy internal RC oscillator or external clock
• 5 Power-saving Modes: Slow, Wait, Halt, Auto-wakeup from Halt and Active-halt
• 16-bit Timer A With: 1 input capture, 1 output compares, external clock input, PWM and pulse generator modes
• 16-bit Timer B With: 2 input captures, 2 output compares, PWM and pulse generator modes

ST72344xx ST72345xx
Figure 42. Timer block diagram
1. If IC, OC and TO interrupt requests have separate vectors then the last OR is not present (See Device
EXTCLK
pin
Interrupt Vector Table).
TIMER INTERRUPT
f
CPU
ICIE
ICF1
CC[1:0]
OCIE TOIE
OCF1 TOF
1/2
1/4
1/8
EXEDG
(See note 1)
8 high
OVERFLOW
DETECT
CIRCUIT
FOLV2
ICF2
(Control/Status Register)
ALTERNATE
REGISTER
REGISTER
COUNTER
COUNTER
FOLV1
(Control Register 1) CR1
OCF2
buffer
8-bit
Doc ID 12321 Rev 5
TIMD
OLVL2
8 low
16
OUTPUT COMPARE
16
IEDG1
16-BIT TIMER PERIPHERAL INTERFACE
0
CIRCUIT
REGISTER
COMPARE
CSR
OUTPUT
0
TIMER INTERNAL BUS
OLVL1
8
1
6
16
INTERNAL BUS
8
OC1E
16
COMPARE
REGISTER
OUTPUT
OC2E OPM
8
2
8
REGISTER
EDGE DETECT
EDGE DETECT
CAPTURE
PWM
INPUT
CIRCUIT2
CIRCUIT1
8
1
CC1
(Control Register 2) CR2
LATCH1
LATCH2
8
On-chip peripherals
16
CC0
REGISTER
CAPTURE
INPUT
8
IEDG2
2
16
8
EXEDG
OCMP1
OCMP2
ICAP1
ICAP2
95/247
pin
pin
pin
pin