ST62T03CM3 STMicroelectronics, ST62T03CM3 Datasheet - Page 41

• Manufacturer Part Number: ST62T03CM3
• Description: IC MCU 8BIT W/ADC 16-SOP
• Manufacturer: STMicroelectronics
• Series: ST6r

Specifications of ST62T03CM3

• Core Processor: ST6
• Core Size: 8-Bit
• Speed: 8MHz
• Peripherals: LVD, POR, WDT
• Number Of I /o: 9
• Program Memory Size: 1KB (1K x 8)
• Program Memory Type: OTP
• Ram Size: 64 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 16-SOIC (0.300", 7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Other names: 497-8232; ST62T03CM3

8 ON-CHIP PERIPHERALS
8.1 WATCHDOG TIMER (WDG)
8.1.1 Introduction
The Watchdog timer is used to detect the occur-
rence of a software fault, usually generated by ex-
ternal interference or by unforeseen logical condi-
tions, which causes the application program to
abandon its normal sequence. The Watchdog cir-
cuit generates an MCU reset on expiry of a pro-
grammed time period, unless the program refresh-
es the counter’s contents before the SR bit be-
comes cleared.
Figure 25. Watchdog Block Diagram
f
int /12
bit 7
T0
WATCHDOG REGISTER (WDGR)
T1
7-BIT DOWNCOUNTER
T2
Doc ID 4563 Rev 5
CLOCK DIVIDER
T3
256
T4
8.1.2 Main Features
■
■
■
■
Programmable timer (64 steps of 3072 clock
cycles)
Software reset
Reset (if watchdog activated) when the SR bit
reaches zero
Hardware or software watchdog activation
selectable by option bit (Refer to the option
bytes section)
T5
SR
RESET
bit 0
ST6200C ST6201C ST6203C
C
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