st10f272z2 STMicroelectronics, st10f272z2 Datasheet - Page 101

• Manufacturer Part Number: st10f272z2
• Description: 16-bit Mcu With 256 Kbyte Flash Memory And 20 Kbyte Ram
• Manufacturer: STMicroelectronics

ST10F272Z2
Figure 31. System reset circuit
Figure 32. Internal (simplified) reset circuitry
Internal
Reset
Signal
ST10F272
EINIT Instruction
RSTIN
RPD
Reset State
Machine
V
V
+
Clock
DD
DD
Clr
Trigger
R2
R0
C0
Asynchronous
Reset
Reset Sequence
(512 CPU Clock Cycles)
D1
External Hardware
Set
Clr
From/to Exit
Powerdown
Circuit
Open Drain Inverter
Q
o.d.
SRST instruction
watchdog overflow
BDRSTEN
External
Reset Source
D2
V
+
DD
V
V
R1
C1
DD
DD
Weak Pulldown
(~200µA)
RSTOUT
System reset
RSTIN
RPD
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