STM8AH5X67TAY datasheet(2/100 Pages) STMICROELECTRONICS

Part #	STM8AH5X67TAY

Description	Automotive 8-bit MCU, with up to 128 Kbytes Flash, EEPROM, 10-bit ADC, timers, LIN, CAN, USART, SPI, I2C, 3 V to 5.5 V

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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2 / 100 page

Contents

STM8AF61xx, STM8AF51xx

2/100

Contents

1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3

Product line-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4

Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5

Product overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5.1

Central processing unit STM8A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5.1.1

Architecture and registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5.1.2

Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5.1.3

Instruction set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5.2

Single wire interface module (SWIM) and debug module . . . . . . . . . . . . 13

5.2.1

SWIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.2.2

Debug module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.3

Interrupt controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.4

Non-volatile memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.4.1

Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.4.2

Write protection (WP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.4.3

Read-out protection (ROP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.4.4

Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.5

Low-power operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.6

Clock and clock controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.6.1

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.6.2

Internal 16 MHz RC oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.6.3

Internal 128 kHz RC oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.6.4

Internal high-speed crystal oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.6.5

External clock input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.6.6

Clock security system (CSS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.7

Timers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.7.1

Watchdog timers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.7.2

Auto wake-up counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.7.3

Multipurpose and PWM timers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

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