ST72F324BK6TAS STMicroelectronics, ST72F324BK6TAS Datasheet - Page 181

• Manufacturer Part Number: ST72F324BK6TAS
• Description: 8-BIT MCU
• Manufacturer: STMicroelectronics

ST72324B-Auto
Table 118. Option byte 1 bit description (continued)
Table 119. Package selection (OPT7)
OPT3:1 OSCRANGE[2:0]
OPT0
Bit
Version
K
J
PLL OFF
Name
Oscillator range
PLL activation
When the resonator oscillator type is selected, these option bits select
the resonator oscillator current source corresponding to the frequency
range of the used resonator. When the external clock source is
selected, these bits are set to medium power (2 ~ 4 MHz)
000: Typ. frequency range (LP) = 1 ~ 2 MHz
001: Typ. frequency range (MP) = 2 ~ 4 MHz
010: Typ. frequency range (MS) = 4 ~ 8 MHz
011: Typ. frequency range (HS) = 8 ~ 16 MHz
This option bit activates the PLL which allows multiplication by two of
the main input clock frequency. The PLL must not be used with the
internal RC oscillator. The PLL is guaranteed only with an input
frequency between 2 and 4 MHz.
0: PLL x2 enabled
1: PLL x2 disabled
Caution: The PLL can be enabled only if the “OSCRANGE” (OPT3:1)
bits are configured to “MP - 2~4 MHz”. Otherwise, the device
functionality is not guaranteed.
Doc ID13466 Rev 4
Selected package
Device configuration and ordering information
LQFP44
LQFP32
Function
PKG1
.
1
0
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