ST10F269Z2QX View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST10F269Z2QX

16-BIT MCU WITH MAC UNIT, 256K BYTE FLASH MEMORY AND 12K BYTE RAM

STMicroelectronics 

ST10F269Z2Qx

Figure 62 : Simplified Powerdown Exit Circuitry

enter

PowerDown

VDD

DQ

Q1

cdQ

stop pll

stop oscillator

VDD

Pull-up

external

interrupt

reset

VDD

DQ

Q2

cdQ

System clock

RPD

Weak Pull-down

(~ 200µA)

CPU and Peripherals clocks

Figure 63 : Powerdown Exit Sequence When Using an External Interrupt (PLL x 2)

XTAL1

CPU clk

Internal

Powerdown

signal

External

Interrupt

RPD

ExitPwrd

(internal)

delay for oscillator/pll

stabilization

~ 2.5 V

116/161

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