ST723246 datasheet(126/161 Pages) STMICROELECTRONICS

No de pièce	ST723246

Description	8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, 4 TIMERS, SPI, SCI INTERFACE

PDF	161 Pages

Scroll/Zoom	100%

Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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ST72324

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CLOCK AND TIMING CHARACTERISTICS (Cont’d)

Notes:

1. Resonator characteristics given by the ceramic resonator manufacturer.

2. tSU(OSC) is the typical oscillator start-up time measured between VDD=2.8V and the fetch of the first instruction (with a

quick VDD ramp-up from 0 to 5V (<50µs).

3. Resonators all have different characteristics. Contact the manufacturer to obtain the appropriate values of external

components and to verify oscillator performance.

4. 3rd overtone resonators require specific validation by the resonator manufacturer.

Oscil.

Typical Ceramic Resonators (information for guidance only)

CL1

[pF]

CL2

[pF]

tSU(osc)

[ms] 2)

Reference3)

Freq.

Characteristic 1)

CSA2.00MG

2MHz

∆f

OSC=[±0.5%tolerance,±0.3%

∆Ta,±0.3%aging,±x.x%correl]22

CSA4.00MG

4MHz

∆f

OSC=[±0.5%tolerance,±0.3%

∆Ta,±0.3%aging,±x.x%correl]22

CSA8.00MTZ

8MHz

∆f

OSC=[±0.5%tolerance,±0.5%

∆Ta,±0.3%aging,±x.x%correl]33

CSA16.00MXZ0404)

16MHz

∆f

OSC=[±0.5%tolerance,±0.3%

∆Ta,±0.3%aging,±x.x%correl] 33

0.7

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