Pin
Figure 1. Pinout ATmega128
Configurations
PEN
RXD0/(PDI) PE0
(TXD0/PDO) PE1
(XCK0/AIN0) PE2
(OC3A/AIN1) PE3
(OC3B/INT4) PE4
(OC3C/INT5) PE5
(T3/INT6) PE6
1
2
3
4
5
6
7
8
9
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)
(ICP3/INT7) PE7
(SS) PB0 10
(SCK) PB1 11
(MOSI) PB2 12
(MISO) PB3 13
(OC0) PB4 14
(OC1A) PB5 15
(OC1B) PB6 16
Note:
The Pinout figure applies to both TQFP and MLF packages. The bottom pad under the QFN/MLF
package should be soldered to ground.
Overview
The ATmega128 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 ATmega128
achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize
power consumption versus processing speed.
2
ATmega128(L)
2467P–AVR–08/07
ATMEL [ ATMEL ]
