ST72321BR9 STMicroelectronics, ST72321BR9 Datasheet - Page 147

• Manufacturer Part Number: ST72321BR9
• Description: 8-bit MCU
• Manufacturer: STMicroelectronics

Specifications of ST72321BR9

• Hdflash Endurance: 100 cycles, data retention
• Clock Sources: crystal/ceramic resonator oscillators, internal RC oscillator and bypass for external clock
• Four Power Saving Modes: Halt, Active-Halt, Wait and Slow
• Main Clock Controller With: Real time base, Beep and Clock-out capabilities
• Two 16-bit Timers With: 2 input captures, 2 output compares, external clock input on one timer, PWM and pulse generator modes
• 8-bit Pwm Auto-reload Timer With: 2 input captures, 4 PWM outputs, output compare and time base interrupt, external clock with event detector

Figure 74. Typical Application with a Crystal or Ceramic Resonator
Figure 75
1
WHEN RESONATOR WITH
INTEGRATED CAPACITORS
WHEN RESONATOR WITH
INTEGRATED CAPACITORS
.
Application with a Crystal or Ceramic Resonator for ROM (LQFP64 or any 48/60K ROM)
C
C
L2
L2
C
C
L1
L1
RESONATOR
RESONATOR
ST72321BRx, ST72321BARx ST72321BJx, ST72321BKx
OSC2
OSC1
OSC1
OSC2
R
F
V
Ref
DD
R
/2
F
i
AMPLIFIER
2
LINEAR
i
2
f
OSC
FEEDBACK
LOOP
POWER DOWN
ST72XXX
ST72XXX
f
OSC
LOGIC
147/187