ST72321J7 STMicroelectronics, ST72321J7 Datasheet - Page 190
ST72321J7
Manufacturer Part Number
ST72321J7
Description
8-BIT MCU WITH NESTED INTERRUPTS, FLASH,10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C INTERFACE
Manufacturer
STMicroelectronics
Datasheet
1.ST72321J7.pdf
(193 pages)
Specifications of ST72321J7
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
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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
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