ATMEGA128A-16AU ATMEL Corporation, ATMEGA128A-16AU Datasheet
ATMEGA128A-16AU
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ATMEGA128A-16AU Summary of contents
Page 1
... Global Pull-up Disable • I/O and Packages – 53 Programmable I/O Lines – 64-lead TQFP and 64-pad QFN/MLF • Operating Voltages – 2.7 - 5.5V for ATmega128A • Speed Grades – MHz for ATmega128A ® 8-bit Microcontroller (1) 8-bit Microcontroller with 128K Bytes In-System Programmable Flash ...
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... Figure 1-1. Note: 2. Overview 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. ...
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... GENERAL PURPOSE REGISTERS ALU STATUS REGISTER DATA REGISTER DATA DIR. PORTB REG. PORTB PORTB DRIVERS PB0 - PB7 ATmega128A PC0 - PC7 PORTC DRIVERS DATA REGISTER DATA DIR. PORTC REG. PORTC 8-BIT DATA BUS CALIB. OSC INTERNAL OSCILLATOR OSCILLATOR WATCHDOG TIMER OSCILLATOR ...
Page 4
... Atmel ATmega128A is a powerful microcontroller that provides a highly flexible and cost effective solution to many embedded control applications. The ATmega128A AVR is supported with a full suite of program and system development tools including: C compilers, macro assemblers, program debugger/simulators, in-circuit emulators, and evaluation kits. ...
Page 5
... As inputs, Port A pins that are externally pulled low will source current if the pull-up resistors are activated. The Port A pins are tri-stated when a reset condition becomes active, even if the clock is not running. Port A also serves the functions of various special features of the ATmega128A as listed on page 73. ...
Page 6
... As inputs, Port E pins that are externally pulled low will source current if the pull-up resistors are activated. The Port E pins are tri-stated when a reset condition becomes active, even if the clock is not running. Port E also serves the functions of various special features of the ATmega128A as listed on page 81. ...
Page 7
... By holding this pin low during a Power-on Reset, the device will enter the SPI Serial Pro- gramming mode. PEN has no function during normal operation. 8151DS–AVR–07/09 324. Shorter pulses are not guaranteed to generate a reset. , even if the ADC is not used. If the ADC is used, it should be connected ATmega128A “System and Reset CC 7 ...
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... Resources A comprehensive set of development tools, application notes, and datasheets are available for download on http://www.atmel.com/avr. ATmega128A/L rev characterization is found in the ATmega128A Appendix B. Note: 4. Data Retention Reliability Qualification results show that the projected data retention failure rate is much less than 1 PPM over 20 years at 85°C or 100 years at 25°C. ...
Page 9
... RWWSRE BLBSET – – – – – – – – PORTG4 PORTG3 – – DDG4 DDG3 – – PING4 PING3 ATmega128A Bit 2 Bit 1 Bit 0 – – – – – – – – – – – – UCSZ11 UCSZ10 UCPOL1 UPE1 U2X1 ...
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... ACBG ACO ACI ACIE REFS0 ADLAR MUX4 MUX3 ADSC ADFR ADIF ADIE ADC Data Register High Byte ADC Data Register Low byte PORTE6 PORTE5 PORTE4 PORTE3 ATmega128A Bit 2 Bit 1 Bit 0 PORTF2 PORTF1 PORTF0 DDF2 DDF1 DDF0 – – – – ...
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... I/O register, writing a one back into any flag read as set, thus clearing the flag. The CBI and SBI instructions work with registers $00 to $1F only. 8151DS–AVR–07/09 Bit 6 Bit 5 Bit 4 Bit 3 DDE6 DDE5 DDE4 DDE3 PINE6 PINE5 PINE4 PINE3 PINF6 PINF5 PINF4 PINF3 ATmega128A Bit 2 Bit 1 Bit 0 DDE2 DDE1 DDE0 PINE2 PINE1 PINE0 PINF2 PINF1 PINF0 Page ...
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... BRHS k Branch if Half Carry Flag Set BRHC k Branch if Half Carry Flag Cleared BRTS k Branch if T Flag Set BRTC k Branch if T Flag Cleared 8151DS–AVR–07/09 ATmega128A Operation Flags Rd ← Z,C,N,V,H Rd ← Z,C,N,V,H Rdh:Rdl ← Rdh:Rdl + K Z,C,N,V,S Rd ← Z,C,N,V,H Rd ← Z,C,N,V,H Rd ← Z,C,N,V,H Rd ← ...
Page 13
... SEZ Set Zero Flag CLZ Clear Zero Flag SEI Global Interrupt Enable CLI Global Interrupt Disable 8151DS–AVR–07/09 ATmega128A then PC ← None then PC ← None Operation Flags then PC ← None then PC ← None Rd ← ...
Page 14
... SEH Set Half Carry Flag in SREG CLH Clear Half Carry Flag in SREG MCU CONTROL INSTRUCTIONS NOP No Operation SLEEP Sleep WDR Watchdog Reset BREAK Break 8151DS–AVR–07/09 ATmega128A S ← ← Operation Flags V ← ← ← ← ← ...
Page 15
... Halide free and fully Green. 64A 64-lead 1.0 mm, Thin Profile Plastic Quad Flat Package (TQFP) 64M1 64-pad 1.0 mm, Quad Flat No-Lead/Micro Lead Frame Package (QFN/MLF) 8151DS–AVR–07/09 (2) Ordering Code Package ATmega128A-16AU 64A ATmega128A-16MU 64M1 Package Type ATmega128A (1) Operation Range Industrial ...
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... Orchard Parkway San Jose, CA 95131 R 8151DS–AVR–07/09 B PIN 1 IDENTIFIER TITLE 64A, 64-lead Body Size, 1.0 mm Body Thickness, 0.8 mm Lead Pitch, Thin Profile Plastic Quad Flat Package (TQFP) ATmega128A A2 A COMMON DIMENSIONS (Unit of Measure = mm) MIN MAX SYMBOL NOM A – – 1.20 A1 0.05 – ...
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... Option A Triangle 2 3 Option B Pin #1 Chamfer (C 0.30) Option C Pin #1 Notch e (0.20 R) TITLE 64M1, 64-pad 1.0 mm Body, Lead Pitch 0.50 mm, 5.40 mm Exposed Pad, Micro Lead Frame Package (MLF) ATmega128A C SEATING PLANE A1 A 0.08 C SIDE VIEW COMMON DIMENSIONS (Unit of Measure = mm) MIN MAX SYMBOL NOM NOTE A ...
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... Errata The revision letter in this section refers to the revision of the ATmega128A device. 9.1 ATmega128A Rev. U • Wrong value for Version in the JTAG Device Identification Register • First Analog Comparator conversion may be delayed • Interrupts may be lost when writing the timer registers in the asynchronous timer • ...
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... Update-DR. Problem Fix / Workaround – If ATmega128A is the only device in the scan chain, the problem is not visible. – Select the Device ID Register of the ATmega128A by issuing the IDCODE – If the Device IDs of all devices in the boundary scan chain must be captured 6 ...
Page 20
... Updated the last page with Atmel’s new addresses. Updated “Errata” on page 375. ATmega128A Rev. U. Updated view of “Typical Characteristics” on page 337 Editorial updates. Initial revision. (Based on the ATmega128/L datasheet 2467R-AVR-06/08) Changes done compared to the ATmega128/L datasheet 2467R-AVR-06/08: - Updated “ ...
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... Atmel products are not suitable for, and shall not be used in, automotive applications. Atmel’s products are not intended, authorized, or warranted for use as components in applications intended to support or sustain life. © 2009 Atmel Corporation. All rights reserved. Atmel trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others. International Atmel Asia Atmel Europe Unit 1-5 & ...