ST72321AR6 STMicroelectronics, ST72321AR6 Datasheet - Page 190

• Manufacturer Part Number: ST72321AR6
• Description: 8-BIT MCU WITH NESTED INTERRUPTS, FLASH,10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C INTERFACE
• Manufacturer: STMicroelectronics

Specifications of ST72321AR6

• Hdflash Endurance: 100 cycles, data retention
• Clock Sources: crystal/ceramic resonator oscillators, internal RC oscillator, clock security system 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

To identify these parts, check the internal sales
type on the box label or the trace code marking on
the package.
Rev
Rev Q
Rev S
Rev 9 (full
spec)
Internal Salestype Trace Code
72F321xxx$A2
72F321xxx$U2
72F321xxx$A8
72F321xxx$U8
72F321xxx$A3
72F321xxx$U3
813xxxQ
813xxxQ
813xxxS
813xxxS
813xxx9
813xxx9
15.4
DEVICES
15.4.1 LVD Operation
Depending on the operating conditions, especially
the V
in some cases the LVD may not start. When this
occurs, the MCU may operate outside the guaran-
teed functional area (see datasheet Figure 76)
without being forced into reset state.
In this case, proper use of the watchdog may
make it possible to recover through a watchdog re-
set and allow normal operations to resume.
Consequently, the LVD function is not guaranteed
in the current silicon revision. For complete securi-
ty, an external reset circuit must be added.
DD
ST72321Rx ST72321ARx ST72321Jx
LIMITATIONS
ramp up speed and ambient temperature,
SPECIFIC
TO
190/193
ROM