ST72324 datasheet(128/163 Pages) STMICROELECTRONICS

부품명	ST72324

상세설명	5V RANGE 8-BIT MCU WITH 8 TO 32K FLASH, 10-BIT ADC, 4 TIMERS, SPI, SCI INTERFACE

PDF	163 Pages

Scroll/Zoom	100%

제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

Logo

128 / 163 page

ST72324

128/163

CLOCK CHARACTERISTICS (Cont’d)

12.6.5 PLL Characteristics

Note:

1. Data characterized but not tested.

The user must take the PLL jitter into account in the application (for example in serial communication or

sampling of high frequency signals). The PLL jitter is a periodic effect, which is integrated over several

CPU cycles. Therefore the longer the period of the application signal, the less it will be impacted by the

PLL jitter.

Figure 68 shows the PLL jitter integrated on application signals in the range 125kHz to 2MHz. At frequen-

cies of less than 125KHz, the jitter is negligible.

Figure 68. Integrated PLL Jitter vs signal frequency1

Note 1: Measurement conditions: fCPU = 8MHz.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fOSC

PLL input frequency range

MHz

∆ f

CPU/ fCPU

Instantaneous PLL jitter 1)

Flash ST72F324,

fOSC = 4 MHz.

1.0

2.5

Flash ST72F324,

fOSC = 2 MHz.

2.5

4.0

0.2

0.4

0.6

0.8

1.2

4 MHz

2 MHz

1 MHz 500 kHz 250 kHz 125 kHz

Application Frequency

+/-Jitter (%)

FLASH typ

ROM max

ROM typ

ST72324 데이터시트(PDF) 128 Page - STMicroelectronics

ST72324 데이터시트(HTML) 128 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

데이터시트 다운로드

링크 URL