ST72361J4-AUTO View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST72361J4-AUTO

8-bit MCU for automotive with Flash or ROM, 10-bit ADC, 5 timers, SPI, LINSCI™

STMicroelectronics 

Electrical characteristics

ST72361xx-Auto

19.5.2

PLL characteristics

Operating conditions: VDD 3.8 to 5.5V @ TA 0 to 70°C(a) or VDD 4.5 to 5.5V @ TA -40 to

125°C

Table 97. PLL characteristics

Symbol

Parameter

Conditions

Min

TA = 0 to +70°C

3.8

VDD(PLL) PLL Voltage Range TA = -40 to +125°C

4.5

fOSC

PLL input frequency

range

2

fCPU/fCPU PLL jitter(1)

fOSC = 4 MHz, VDD = 4.5 to

5.5V

fOSC = 2 MHz, VDD = 4.5 to

5.5V

1. Data characterized but not tested.

2. Under characterization.

Typ Max Unit

5.5

4 MHz

See note(2)

%

Figure 101. PLL jitter vs signal frequency(1)

0.8

0.7

0.6

PLL ON

0.5

PLL OFF

0.4

0.3

0.2

0.1

0

2000

1000

500

250

125

Application Signal Frequency (KHz)

1. Measurement conditions: fCPU = 4 MHz, TA = 25°C

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 is impacted by the PLL jitter.

Figure 124 shows the PLL jitter integrated on application signals in the range 125 kHz to

2 MHz. At frequencies of less than 125 kHz, the jitter is negligible.

a. Data characterized but not tested

236/279

Doc ID 12468 Rev 3

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