MC68HC908EY16 Datasheet, PDF(232/278 Page) Motorola, Inc – Microcontrollers

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MC68HC908EY16 Datasheet, PDF (232/278 Pages) Motorola, Inc – Microcontrollers

◁

Development Support

N.C.

1 ÂµF

1 ÂµF

DB9

2

3

MAX232

VDD

1 C1+

+

3 C1â

VCC 16

GND 15

+

1 ÂµF

1 ÂµF

+

4 C2+

+

5 C2â

7

8

V+ 2

Vâ 6

10

9

1 ÂµF

+

74HC125

6

5

74HC125

2

3

4

9.8304-MHz CLOCK

1 kâ¦

VDD

9.1 V

10 kâ¦

5

1

MC68HC908EY16

VDD

RST

OSC1

VDD

VDDA

0.1 ÂµF

VDD

10 k

PTB4

IRQ

PTA0

10 k

PTB3

10 k

PTA1

VSSA

VSS

Figure 19-9. Normal Monitor Mode Circuit

N.C.

1 ÂµF

1 ÂµF

DB9

2

3

MAX232

VDD

1 C1+

+

3 C1â

VCC 16

GND 15

+

1 ÂµF

1 ÂµF

+

4 C2+

+

5 C2â

7

8

V+ 2

Vâ 6

10

9

1 ÂµF

+

74HC125

6

5

74HC125

2

3

4

9.8304-MHz CLOCK

N.C.

VDD

10 kâ¦

5

1

MC68HC908EY16

RST

VDD

VDDA

OSC1

VDD

0.1 ÂµF

IRQ

PTA0

PTB4

N.C.

PTB3

N.C.

10 k

PTA1

VSSA

VSS

Figure 19-10. Forced Monitor Mode (IRQ = VDD)

MC68HC908EY16 â¢ MC68HC908EY8 Data Sheet, Rev. 10

232

Freescale Semiconductor

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