Pin Assignments

PTA2

PTA3

PTA4

PTA5

PTA6

PTA7

PTB0/ATD0

PTB1/ATD1

PTB2/ATD2

PTB3/ATD3

PTB4/ATD4

PTB5/ATD5

PTB6/ATD5

PTB7/ATD7

PTC0/ATD8

VDDAD

VSSAD/VREFL

VREFH

PTC2

PTC3

PTC4

PTC5

PTC6

PTD0/FAULT1

PTD1/FAULT2

PTD2/FAULT3

PTD3/FAULT4

PTD4/IS1

1

56

2

55

3

54

4

53

5

52

6

51

7

50

8

49

9

48

10

47

11

46

12

45

13

44

14

43

15

42

16

41

17

40

18

39

19

38

20

37

21

36

22

35

23

34

24

33

25

32

26

31

27

30

28

29

PTA1

PTA0

VSSA

OSC2

OSC1

CGMXFC

VDDA

RST

IRQ

PTF5/TxD

PTF4/RxD

VSS

VDD

PTE7/TCH3A

PTE6/TCH2A

PTE5/TCH1A

PTE4/TCH0A

PTE3/TCLKA

NC

PWM6

PWM5

PWMGND

PWM4

PWM3

PWM2

PWM1

PTD6/IS3

PTD5/IS2

Note:

PTC1, PTE0, PTE1, PTE2, PTF0, PTF1, PTF2, and PTF3 are removed from this package.

Figure 1-3. 56-Pin SDIP Pin Assignments

MC68HC908MR32 • MC68HC908MR16 Data Sheet, Rev. 6.1

Freescale Semiconductor

21

Page 21
Image 21
Freescale Semiconductor MC68HC908MR16, MC68HC908MR32 manual Pin Sdip Pin Assignments

MC68HC908MR16, MC68HC908MR32 specifications

Freescale Semiconductor's MC68HC908MR32 and MC68HC908MR16 microcontrollers are part of the popular HC08 family, designed primarily for embedded applications. These microcontrollers are particularly favored in automotive, industrial, and consumer product sectors due to their reliability and versatility.

One of the standout features of the MC68HC908MR series is its CMOS technology, which enhances performance while minimizing power consumption. This makes these microcontrollers suitable for battery-operated devices. They operate at a maximum clock frequency of 2 MHz and offer a 16-bit architecture, providing a solid balance between processing power and efficiency.

The MC68HC908MR32 variant is equipped with 32KB of flash memory, which allows for the storage of complex programs and extensive data handling. In contrast, the MC68HC908MR16 features 16KB of flash memory, making it ideal for simpler applications. Both microcontrollers also come with 1KB of RAM, enabling efficient data processing and real-time operations.

Another significant characteristic of these microcontrollers is their integrated peripherals. They come with multiple input/output (I/O) pins, which allow for connectivity with various sensors and actuators. The built-in timer systems offer precise timing control for automotive and industrial applications, while the Analog-to-Digital Converter (ADC) provides essential conversion capabilities for various analog signals.

For communication purposes, the MC68HC908MR series includes a serial communication interface, enabling easy integration with other devices and systems. This versatility facilitates the development of complex systems that require interaction with external components.

Security is another crucial aspect of these microcontrollers. They have built-in fail-safe mechanisms to ensure reliable operation under various conditions, making them suitable for critical systems. Additionally, their robust architecture helps to safeguard against potential disruptions or attacks.

In summary, Freescale Semiconductor's MC68HC908MR32 and MC68HC908MR16 microcontrollers are key players in the embedded systems landscape. Their blend of power efficiency, integrated features, and scalability ensures they remain relevant for a wide array of applications, making them a favored choice among engineers and developers looking for dependable solutions in a competitive market.