ATMEGA128A 데이터 시트보기 (PDF) - Atmel Corporation

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ATMEGA128A

8-Bit AVR Microcontroller with 128K Bytes In-System Programmable Flash

Atmel Corporation 

1. Pin Configurations

Figure 1-1. Pinout ATmega128A

PEN 1

RXD0/(PDI) PE0 2

(TXD0/PDO) PE1 3

(XCK0/AIN0) PE2 4

(OC3A/AIN1) PE3 5

(OC3B/INT4) PE4 6

(OC3C/INT5) PE5 7

(T3/INT6) PE6 8

(ICP3/INT7) PE7 9

(SS) PB0 10

(SCK) PB1 11

(MOSI) PB2 12

(MISO) PB3 13

(OC0) PB4 14

(OC1A) PB5 15

(OC1B) PB6 16

ATmega128A

48 PA3 (AD3)

47 PA4 (AD4)

46 PA5 (AD5)

45 PA6 (AD6)

44 PA7 (AD7)

43 PG2(ALE)

42 PC7 (A15)

41 PC6 (A14)

40 PC5 (A13)

39 PC4 (A12)

38 PC3 (A11)

37 PC2 (A10)

36 PC1 (A9)

35 PC0 (A8)

34 PG1(RD)

33 PG0(WR)

2. Overview

Note: The Pinout figure applies to both TQFP and MLF packages. The bottom pad under the QFN/MLF

package should be soldered to ground.

The ATmega128A is a low-power CMOS 8-bit microcontroller based on the AVR enhanced

RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega128A

achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize

power consumption versus processing speed.

19

8151GS–AVR–07/10

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