ST6232BQ3 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

ST6232BQ3

8-BIT OTP/EPROM MCUs WITH A/D CONVERTER, 16-BIT AUTO-RELOAD TIMER, EEPROM, SPI AND UART

STMicroelectronics 

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ST62T32B ST62E32B

CLOCK SYSTEM (Cont’d)

Figure 12. Clock Circuit Block Diagram

POR

MAIN

OSCILLATOR

OSG

LFAO

: 13

Core

TIMER 1

M

U

fINT

: 12

Watchdog

X

M

U ADC

:6

X

:1

ARTIMER 16

Main Oscillator off

Figure 13. Maximum Operating Frequency (fMAX) versus Supply Voltage (VDD)

Maximum FREQUENCY (MHz)

8

7

6

4

5

4

3

fOSG

2

fOSG Min

3

2

1

1

2.5

3

3.5

4

4.5

5

5.5

6

SUPPLY VOLTAGE (VDD)

VR01807

Notes:

1. In this area, operation is guaranteed at the quartz crystal frequency.

2. When the OSG is disabled, operation in this area is guaranteed at the crystal frequency. When the OSG

is enabled, operation in this area is guaranteed at a frequency of at leastOfSG Min.

3. When the OSG is disabled, operation in this area is guaranteed at the quartz crystal frequency. When

the OSG is enabled, access to this area is prevented. The internal frequency is kept aOfSG.

4. When the OSG is disabled, operation in this area is not guaranteed

When the OSG is enabled, access to this area is prevented. The internal frequency is kept atOfSG.

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