AT89S8253-24AU 데이터 시트보기 (PDF) - Atmel Corporation

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AT89S8253-24AU

8-bit Microcontroller with 12 Kbyte Flash

Atmel Corporation 

2.3 44J – 44-lead PLCC

(MOSI) P1.5 7

(MISO) P1.6 8

(SCK) P1.7 9

RST 10

(RXD) P3.0 11

NC 12

(TXD) P3.1 13

(INT0) P3.2 14

(INT1) P3.3 15

(T0) P3.4 16

(T1) P3.5 17

39 P0.4 (AD4)

38 P0.5 (AD5)

37 P0.6 (AD6)

36 P0.7 (AD7)

35 EA/VPP

34 NC

33 ALE/PROG

32 PSEN

31 P2.7 (A15)

30 P2.6 (A14)

29 P2.5 (A13)

AT89S8253

2.4 42PS6 – PDIP

RST 1

(RXD) P3.0 2

(TXD) P3.1 3

(INT0) P3.2 4

(INT1) P3.3 5

(T0) P3.4 6

(T1) P3.5 7

(WR) P3.6 8

(RD) P3.7 9

XTAL2 10

XTAL1 11

GND 12

PWRGND 13

(A8) P2.0 14

(A9) P2.1 15

(A10) P2.2 16

(A11) P2.3 17

(A12) P2.4 18

(A13) P2.5 19

(A14) P2.6 20

(A15) P2.7 21

42 P1.7 (SCK)

41 P1.6 (MISO)

40 P1.5 (MOSI)

39 P1.4 (SS)

38 P1.3

37 P1.2

36 P1.1 (T2EX)

35 P1.0 (T2)

34 VDD

33 PWRVDD

32 P0.0 (AD0)

31 P0.1 (AD1)

30 P0.2 (AD2)

29 P0.3 (AD3)

28 P0.4 (AD4)

27 P0.5 (AD5)

26 P0.6 (AD6)

25 P0.7 (AD7)

24 EA/VPP

23 ALE/PROG

22 PSEN

3. Pin Description

3.1 VCC

Supply voltage (all packages except 42-PDIP).

3.2 GND

Ground (all packages except 42-PDIP; for 42-PDIP GND connects only the logic core and the

embedded program/data memories).

3.3 VDD

Supply voltage for the 42-PDIP which connects only the logic core and the embedded pro-

gram/data memories.

3.4 PWRVDD

Supply voltage for the 42-PDIP which connects only the I/O Pad Drivers. The application board

must connect both VDD and PWRVDD to the board supply voltage.

3

3286P–MICRO–3/10

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