ST52T440F3M6 STMicroelectronics, ST52T440F3M6 Datasheet - Page 45

• Manufacturer Part Number: ST52T440F3M6
• Description: MCU 8-Bit ST52 CISC 8KB EPROM 5V 20-Pin SO
• Manufacturer: STMicroelectronics

Specifications of ST52T440F3M6

• Package: 20SO
• Family Name: ST52
• Maximum Speed: 20 MHz
• Ram Size: 256 Byte
• Program Memory Size: 8 KB
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Program Memory Type: EPROM
• Number Of Programmable I/os: 13
• On-chip Adc: 6-chx12-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 1

Figure 5.4 HALT Flow Chart
OSCILLATOR
PERIPHERALS CLOCK
CPU CLOCK
1000000 CPU CLOCK
USER PROGRAM
CYCLES DELAY
AND RESTART
HALT INSTRUCTION
NO
RESET CPU
RESET
SKIPPED
YES
OSCILLATOR
PERIPHERALS CLOCK
CPU CLOCK
YES
ON
ON
ON
NO
HALT INSTRUCTION
WATCHDOG
INTERRUPT ROUTINE
INTERRUPT
RESTART PROGRAM
EXTERNAL
ENABLED
LOWER PRIORITY
SERVICING THE
NO
OSCILLATOR
PERIPHERALS CLOCK
CPU CLOCK
NO
YES
OFF
OFF
OFF
4096 CPU CLOCK
CYCLES DELAY
INTERRUPT
EXTERNAL
ENABLED
ST52T400/T440/E440/T441
INTERRUPT ROUTINE
RESTART PROGRAM
SERVICING THE
YES
EXTERNAL
ON
ON
ON
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