st10f269z1 STMicroelectronics, st10f269z1 Datasheet - Page 124
st10f269z1
Manufacturer Part Number
st10f269z1
Description
St10f269 16-bit Mcu With Mac Unit, 256k Byte Flash Memory And 12k Byte Ram
Manufacturer
STMicroelectronics
Datasheet
1.ST10F269Z1.pdf
(184 pages)
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19 - POWER REDUCTION MODES
Figure 62 : Simplified Powerdown Exit Circuitry
Figure 63 :
124/184
XTAL1
CPU clk
Internal
Powerdown
signal
External
Interrupt
RPD
ExitPwrd
(internal)
Powerdown Exit Sequence When Using an External Interrupt (PLL x 2)
enter
PowerDown
external
interrupt
reset
V
DD
V
DD
D Q
D Q
Q1
Q2
cd
cd
Q
Q
System clock
delay for oscillator/pll
stop pll
stop oscillator
stabilization
CPU and Peripherals clocks
V
DD
Weak Pull-down
(~ 200 A)
Pull-up
RPD
~ 2.5 V
ST10F269
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