Features • High Performance, Low Power AVR® 8-Bit Microcontroller • Advanced RISC Architecture • • • • • • • – 123 Powerful Instructions – Most Single Clock Cycle Execution – 32 x 8 General Purpose Working Registers – Fully Static Operation Non-volatile Program and Data Memories – 2/4/8K Byte of In-System Programmable Program Memory Flash (ATtiny261/461/861) Endurance: 10,000 Write/Erase Cycles – 128/256/512 Bytes In-System Programmable EEPROM (ATtiny261/461/861) Endurance: 100,000 Write/Erase Cycles – 128/256/512 Bytes Internal SRAM (ATtiny261/461/861) – Programming Lock for Self-Programming Flash Program and EEPROM Data Security Peripheral Features – 8/16-bit Timer/Counter with Prescaler – 8/10-bit High Speed Timer/Counter with Separate Prescaler 3 High Frequency PWM Outputs with Separate Output Compare Registers Programmable Dead Time Generator – Universal Serial Interface with Start Condition Detector – 10-bit ADC 11 Single Ended Channels 16 Differential ADC Channel Pairs 15 Differential ADC Channel Pairs with Programmable Gain (1x, 8x, 20x, 32x) – Programmable Watchdog Timer with Separate On-chip Oscillator – On-chip Analog Comparator Special Microcontroller Features – debugWIRE On-chip Debug System – In-System Programmable via SPI Port – External and Internal Interrupt Sources – Low Power Idle, ADC Noise Reduction, and Power-down Modes – Enhanced Power-on Reset Circuit – Programmable Brown-out Detection Circuit – Internal Calibrated Oscillator I/O and Packages – 16 Programmable I/O Lines – 20-pin SOIC, 32-pad MLF and 20-lead TSSOP Operating Voltage: – 2.7 - 5.5V for ATtiny261/461/861 Speed Grade: – ATtiny261/461/861: 0 - 8 MHz @ 2.7 - 5.5V, 0 - 16 MHz @ 4.5 - 5.5V – Operating temperature: Automotive (-40°C to +125°C) Low Power Consumption – Active Mode: 1 MHz, 2.7V: 380μA – Power-down Mode: 0.1μA at 2.7V 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash ATtiny261 ATtiny461 ATtiny861 Automotive Preliminary Summary 7753BS–AVR–08/08 1. Pin Configurations Figure 1-1. Pinout ATtiny261/461/861 SOIC / TSSOP 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 PA0 (ADC0/DI/SDA/PCINT0) PA1 (ADC1/DO/PCINT1) PA2 (ADC2/INT1/USCK/SCL/PCINT2) PA3 (AREF/PCINT3) AGND AVCC PA4 (ADC3/ICP0/PCINT4) PA5 (ADC4/AIN2/PCINT5) PA6 (ADC5/AIN0/PCINT6) PA7 (ADC6/AIN1/PCINT7) 32 31 30 29 28 27 26 25 PB2 (SCK/USCK/SCL/OC1B/PCINT10) PB1 (MISO/DO/OC1A/PCINT9) PB0 (MOSI/DI/SDA/OC1A/PCINT8) NC NC NC PA0 (ADC0/DI/SDA/PCINT0) PA1 (ADC1/DO/PCINT1) (MOSI/DI/SDA/OC1A/PCINT8) PB0 (MISO/DO/OC1A/PCINT9) PB1 (SCK/USCK/SCL/OC1B/PCINT10) PB2 (OC1B/PCINT11) PB3 VCC GND (ADC7/OC1D/CLKI/XTAL1/PCINT12) PB4 (ADC8/OC1D/CLKO/XTAL2/PCINT13) PB5 (ADC9/INT0/T0/PCINT14) PB6 (ADC10/RESET/PCINT15) PB7 1 2 3 4 5 6 7 8 QFN/MLF 24 23 22 21 20 19 18 17 NC PA2 (ADC2/INT1/USCK/SCL/PCINT2) PA3 (AREF/PCINT3) AGND NC NC AVCC PA4 (ADC3/ICP0/PCINT4) NC (ADC9/INT0/T0/PCINT14) PB6 (ADC10/RESET/PCINT15) PB7 NC (ADC6/AIN1/PCINT7) PA7 (ADC5/AIN0/PCINT6) PA6 (ADC4/AIN2/PCINT5) PA5 NC 9 10 11 12 13 14 15 16 NC (OC1B/PCINT11) PB3 NC VCC GND NC (ADC7/OC1D/CLKI/XTAL1/PCINT12) PB4 (ADC8/OC1D/CLKO/XTAL2/PCINT13) PB5 Note: 2 The large center pad underneath the QFN/MLF package should be soldered to ground on the board to ensure good mechanical stability. ATtiny261/461/861 7753BS–AVR–08/08 ATtiny261/461/861 1.1 Disclaimer Typical values contained in this data sheet are based on simulations and characterization of other AVR microcontrollers manufactured on the same process technology. Min and Max values will be available after the device is characterized. 1.2 Automotive Quality Grade The ATtiny261/461/861 have been developed and manufactured according to the most stringent requirements of the international standard ISO-TS 16949. This data sheet contains limit values extracted from the results of extensive characterization (Temperature and Voltage). The quality and reliability of the ATtiny261/461/861 have been verified during regular product qualification as per AEC-Q100 grade 1. As indicated in the ordering information paragraph, the product is available in only one temper ture grade, Table 1-2. Table 1-1. Temperature Grade Identification for Automotive Products Temperature -40; +125 Temperature Identifier Z Comments Full Automotive Temperature Range 3 7753BS–AVR–08/08 2. Overview The ATtiny261/461/861 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 ATtiny261/461/861 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed. Block Diagram Block Diagram GND Figure 2-1. VCC 2.1 Watchdog Timer Watchdog Oscillator Oscillator Circuits / Clock Generation Power Supervision POR / BOD & RESET debugWIRE Flash SRAM PROGRAM LOGIC CPU EEPROM AVCC AGND AREF Timer/Counter1 USI Analog Comp. A/D Conv. DATABUS Timer/Counter0 Internal Bandgap 3 PORT B (8) 11 PORT A (8) RESET XTAL[1..2] PB[0..7] 4 PA[0..7] ATtiny261/461/861 7753BS–AVR–08/08 ATtiny261/461/861 The AVR core combines a rich instruction set with 32 general purpose working registers. All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers. The ATtiny261/461/861 provides the following features: 2/4/8K byte of In-System Programmable Flash, 128/256/512 bytes EEPROM, 128/256/512 bytes SRAM, 6 general purpose I/O lines, 32 general purpose working registers, one 8-bit Timer/Counter with compare modes, one 8-bit high speed Timer/Counter, Universal Serial Interface, Internal and External Interrupts, a 4-channel, 10-bit ADC, a programmable Watchdog Timer with internal Oscillator, and three software selectable power saving modes. The Idle mode stops the CPU while allowing the SRAM, Timer/Counter, ADC, Analog Comparator, and Interrupt system to continue functioning. The Power-down mode saves the register contents, disabling all chip functions until the next Interrupt or Hardware Reset. The ADC Noise Reduction mode stops the CPU and all I/O modules except ADC, to minimize switching noise during ADC conversions. The device is manufactured using Atmel’s high density non-volatile memory technology. The On-chip ISP Flash allows the Program memory to be re-programmed In-System through an SPI serial interface, by a conventional non-volatile memory programmer or by an On-chip boot code running on the AVR core. The ATtiny261/461/861 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. 5 7753BS–AVR–08/08 3. Instruction Set Summary Mnemonics Operands Description Operation Flags #Clocks ARITHMETIC AND LOGIC INSTRUCTIONS ADD Rd, Rr Add two Registers Rd ← Rd + Rr Z,C,N,V,H ADC Rd, Rr Add with Carry two Registers Rd ← Rd + Rr + C Z,C,N,V,H 1 1 ADIW Rdl,K Add Immediate to Word Rdh:Rdl ← Rdh:Rdl + K Z,C,N,V,S 2 SUB Rd, Rr Subtract two Registers Rd ← Rd - Rr Z,C,N,V,H 1 SUBI Rd, K Subtract Constant from Register Rd ← Rd - K Z,C,N,V,H 1 SBC Rd, Rr Subtract with Carry two Registers Rd ← Rd - Rr - C Z,C,N,V,H 1 SBCI Rd, K Subtract with Carry Constant from Reg. Rd ← Rd - K - C Z,C,N,V,H 1 SBIW Rdl,K Subtract Immediate from Word Rdh:Rdl ← Rdh:Rdl - K Z,C,N,V,S 2 1 AND Rd, Rr Logical AND Registers Rd ← Rd • Rr Z,N,V ANDI Rd, K Logical AND Register and Constant Rd ← Rd • K Z,N,V 1 OR Rd, Rr Logical OR Registers Rd ← Rd v Rr Z,N,V 1 ORI Rd, K Logical OR Register and Constant Rd ← Rd v K Z,N,V 1 EOR Rd, Rr Exclusive OR Registers Rd ← Rd ⊕ Rr Z,N,V 1 COM Rd One’s Complement Rd ← 0xFF − Rd Z,C,N,V 1 NEG Rd Two’s Complement Rd ← 0x00 − Rd Z,C,N,V,H 1 SBR Rd,K Set Bit(s) in Register Rd ← Rd v K Z,N,V 1 CBR Rd,K Clear Bit(s) in Register Rd ← Rd • (0xFF - K) Z,N,V 1 INC Rd Increment Rd ← Rd + 1 Z,N,V 1 DEC Rd Decrement Rd ← Rd − 1 Z,N,V 1 1 TST Rd Test for Zero or Minus Rd ← Rd • Rd Z,N,V CLR Rd Clear Register Rd ← Rd ⊕ Rd Z,N,V 1 SER Rd Set Register Rd ← 0xFF None 1 Relative Jump PC ← PC + k + 1 None 2 Indirect Jump to (Z) PC ← Z None 2 Relative Subroutine Call PC ← PC + k + 1 None 3 ICALL Indirect Call to (Z) PC ← Z None 3 RET Subroutine Return PC ← STACK None 4 RETI Interrupt Return PC ← STACK I 4 BRANCH INSTRUCTIONS RJMP k IJMP RCALL k CPSE Rd,Rr Compare, Skip if Equal if (Rd = Rr) PC ← PC + 2 or 3 None CP Rd,Rr Compare Rd − Rr Z, N,V,C,H 1/2/3 CPC Rd,Rr Compare with Carry Rd − Rr − C Z, N,V,C,H 1 CPI Rd,K Compare Register with Immediate Rd − K Z, N,V,C,H 1 1 SBRC Rr, b Skip if Bit in Register Cleared if (Rr(b)=0) PC ← PC + 2 or 3 None 1/2/3 SBRS Rr, b Skip if Bit in Register is Set if (Rr(b)=1) PC ← PC + 2 or 3 None 1/2/3 SBIC P, b Skip if Bit in I/O Register Cleared if (P(b)=0) PC ← PC + 2 or 3 None 1/2/3 SBIS P, b Skip if Bit in I/O Register is Set if (P(b)=1) PC ← PC + 2 or 3 None 1/2/3 BRBS s, k Branch if Status Flag Set if (SREG(s) = 1) then PC←PC+k + 1 None 1/2 BRBC s, k Branch if Status Flag Cleared if (SREG(s) = 0) then PC←PC+k + 1 None 1/2 BREQ k Branch if Equal if (Z = 1) then PC ← PC + k + 1 None 1/2 BRNE k Branch if Not Equal if (Z = 0) then PC ← PC + k + 1 None 1/2 BRCS k Branch if Carry Set if (C = 1) then PC ← PC + k + 1 None 1/2 BRCC k Branch if Carry Cleared if (C = 0) then PC ← PC + k + 1 None 1/2 BRSH k Branch if Same or Higher if (C = 0) then PC ← PC + k + 1 None 1/2 BRLO k Branch if Lower if (C = 1) then PC ← PC + k + 1 None 1/2 BRMI k Branch if Minus if (N = 1) then PC ← PC + k + 1 None 1/2 BRPL k Branch if Plus if (N = 0) then PC ← PC + k + 1 None 1/2 BRGE k Branch if Greater or Equal, Signed if (N ⊕ V= 0) then PC ← PC + k + 1 None 1/2 BRLT k Branch if Less Than Zero, Signed if (N ⊕ V= 1) then PC ← PC + k + 1 None 1/2 BRHS k Branch if Half Carry Flag Set if (H = 1) then PC ← PC + k + 1 None 1/2 BRHC k Branch if Half Carry Flag Cleared if (H = 0) then PC ← PC + k + 1 None 1/2 BRTS k Branch if T Flag Set if (T = 1) then PC ← PC + k + 1 None 1/2 BRTC k Branch if T Flag Cleared if (T = 0) then PC ← PC + k + 1 None 1/2 BRVS k Branch if Overflow Flag is Set if (V = 1) then PC ← PC + k + 1 None 1/2 BRVC k Branch if Overflow Flag is Cleared if (V = 0) then PC ← PC + k + 1 None 1/2 BRIE k Branch if Interrupt Enabled if ( I = 1) then PC ← PC + k + 1 None 1/2 BRID k Branch if Interrupt Disabled if ( I = 0) then PC ← PC + k + 1 None 1/2 BIT AND BIT-TEST INSTRUCTIONS SBI P,b Set Bit in I/O Register I/O(P,b) ← 1 None 2 CBI P,b Clear Bit in I/O Register I/O(P,b) ← 0 None 2 LSL Rd Logical Shift Left Rd(n+1) ← Rd(n), Rd(0) ← 0 Z,C,N,V 1 LSR Rd Logical Shift Right Rd(n) ← Rd(n+1), Rd(7) ← 0 Z,C,N,V 1 ROL Rd Rotate Left Through Carry Rd(0)←C,Rd(n+1)← Rd(n),C←Rd(7) Z,C,N,V 1 6 ATtiny261/461/861 7753BS–AVR–08/08 ATtiny261/461/861 Mnemonics Operands Description Operation Flags #Clocks ROR Rd Rotate Right Through Carry Rd(7)←C,Rd(n)← Rd(n+1),C←Rd(0) Z,C,N,V 1 ASR Rd Arithmetic Shift Right Rd(n) ← Rd(n+1), n=0..6 Z,C,N,V 1 SWAP Rd Swap Nibbles Rd(3..0)←Rd(7..4),Rd(7..4)←Rd(3..0) None 1 BSET s Flag Set SREG(s) ← 1 SREG(s) 1 BCLR s Flag Clear SREG(s) ← 0 SREG(s) 1 BST Rr, b Bit Store from Register to T T ← Rr(b) T 1 BLD Rd, b Bit load from T to Register Rd(b) ← T None 1 SEC Set Carry C←1 C 1 CLC Clear Carry C←0 C 1 SEN Set Negative Flag N←1 N 1 CLN Clear Negative Flag N←0 N 1 SEZ Set Zero Flag Z←1 Z 1 CLZ Clear Zero Flag Z←0 Z 1 SEI Global Interrupt Enable I←1 I 1 CLI Global Interrupt Disable I←0 I 1 SES Set Signed Test Flag S←1 S 1 CLS Clear Signed Test Flag S←0 S 1 SEV Set Twos Complement Overflow. V←1 V 1 CLV Clear Twos Complement Overflow V←0 V 1 SET Set T in SREG T←1 T 1 CLT Clear T in SREG T←0 T 1 SEH CLH Set Half Carry Flag in SREG Clear Half Carry Flag in SREG H←1 H←0 H H 1 None 1 None 1 1 DATA TRANSFER INSTRUCTIONS MOV Rd, Rr Move Between Registers MOVW Rd, Rr Copy Register Word Rd ← Rr Rd+1:Rd ← Rr+1:Rr LDI Rd, K Load Immediate Rd ← K None 1 LD Rd, X Load Indirect Rd ← (X) None 2 LD Rd, X+ Load Indirect and Post-Inc. Rd ← (X), X ← X + 1 None 2 LD Rd, - X Load Indirect and Pre-Dec. X ← X - 1, Rd ← (X) None 2 2 LD Rd, Y Load Indirect Rd ← (Y) None LD Rd, Y+ Load Indirect and Post-Inc. Rd ← (Y), Y ← Y + 1 None 2 LD Rd, - Y Load Indirect and Pre-Dec. Y ← Y - 1, Rd ← (Y) None 2 LDD Rd,Y+q Load Indirect with Displacement Rd ← (Y + q) None 2 LD Rd, Z Load Indirect Rd ← (Z) None 2 LD Rd, Z+ Load Indirect and Post-Inc. Rd ← (Z), Z ← Z+1 None 2 LD Rd, -Z Load Indirect and Pre-Dec. Z ← Z - 1, Rd ← (Z) None 2 LDD Rd, Z+q Load Indirect with Displacement Rd ← (Z + q) None 2 LDS Rd, k Load Direct from SRAM Rd ← (k) None 2 ST X, Rr Store Indirect (X) ← Rr None 2 ST X+, Rr Store Indirect and Post-Inc. (X) ← Rr, X ← X + 1 None 2 ST - X, Rr Store Indirect and Pre-Dec. X ← X - 1, (X) ← Rr None 2 ST Y, Rr Store Indirect (Y) ← Rr None 2 ST Y+, Rr Store Indirect and Post-Inc. (Y) ← Rr, Y ← Y + 1 None 2 ST - Y, Rr Store Indirect and Pre-Dec. Y ← Y - 1, (Y) ← Rr None 2 STD Y+q,Rr Store Indirect with Displacement (Y + q) ← Rr None 2 ST Z, Rr Store Indirect (Z) ← Rr None 2 ST Z+, Rr Store Indirect and Post-Inc. (Z) ← Rr, Z ← Z + 1 None 2 ST -Z, Rr Store Indirect and Pre-Dec. Z ← Z - 1, (Z) ← Rr None 2 STD Z+q,Rr Store Indirect with Displacement (Z + q) ← Rr None 2 STS k, Rr Store Direct to SRAM (k) ← Rr None 2 Load Program Memory R0 ← (Z) None 3 LPM LPM Rd, Z Load Program Memory Rd ← (Z) None 3 LPM Rd, Z+ Load Program Memory and Post-Inc Rd ← (Z), Z ← Z+1 None 3 Store Program Memory (z) ← R1:R0 None SPM IN Rd, P In Port Rd ← P None OUT P, Rr Out Port P ← Rr None 1 1 PUSH Rr Push Register on Stack STACK ← Rr None 2 POP Rd Pop Register from Stack Rd ← STACK None 2 MCU CONTROL INSTRUCTIONS NOP No Operation None 1 SLEEP Sleep (see specific descr. for Sleep function) None 1 WDR BREAK Watchdog Reset Break (see specific descr. for WDR/Timer) For On-chip Debug Only None None 1 N/A 7 7753BS–AVR–08/08 4. Ordering Information Table 4-1. Ordering Code(2) Speed (MHz)(3) Power Supply (V) Package(1) Operation Range ATtiny261-ESSZ 16 2.7 - 5.5 TG Automotive (-40° to +125°C) ATtiny261-ESMZ 16 2.7 - 5.5 PN Automotive (-40° to +125°C) ATtiny261-ESXZ 16 2.7 - 5.5 6G Automotive (-40° to +125°C) ATtiny461-ESSZ 16 2.7 - 5.5 TG Automotive (-40° to +125°C) ATtiny461-ESMZ 16 2.7 - 5.5 PN Automotive (-40° to +125°C) ATtiny461-ESXZ 16 2.7 - 5.5 6G Automotive (-40° to +125°C) ATtiny861-ESSZ 16 2.7 - 5.5 TG Automotive (-40° to +125°C) ATtiny861-ESMZ 16 2.7 - 5.5 PN Automotive (-40° to +125°C) ATtiny861-ESXZ 16 2.7 - 5.5 6G Automotive (-40° to +125°C) Table 4-2. Available Product Offering Ordering Code(2) Speed (MHz)(3) Power Supply (V) Package(1) Operation Range ATtiny261-15SZ 16 2.7 - 5.5 TG Automotive (-40° to +125°C) ATtiny261-15MZ 16 2.7 - 5.5 PN Automotive (-40° to +125°C) ATtiny261-15XZ 16 2.7 - 5.5 6G Automotive (-40° to +125°C) ATtiny461-15SZ 16 2.7 - 5.5 TG Automotive (-40° to +125°C) ATtiny461-15MZ 16 2.7 - 5.5 PN Automotive (-40° to +125°C) ATtiny461-15XZ 16 2.7 - 5.5 6G Automotive (-40° to +125°C) ATtiny861-15SZ 16 2.7 - 5.5 TG Automotive (-40° to +125°C) ATtiny861-15MZ 16 2.7 - 5.5 PN Automotive (-40° to +125°C) ATtiny861-15XZ 16 2.7 - 5.5 6G Automotive (-40° to +125°C) Notes: 8 Engineering Samples Delivery only 1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering information and minimum quantities. 2. Pb-free packaging, complies to the European Directive for Restriction of Hazardous Substances (RoHS directive). Also Halide free and fully Green. 3. For Speed vs. VCC,see Figure 23.3 on page 189 ATtiny261/461/861 7753BS–AVR–08/08 ATtiny261/461/861 Package Type PN 32-pad, 5.0 x 5.0 mm Body, Lead Pitch 0.50 mm, Quad Flat No Lead Package (QFN) TG 20-lead, 0.300" Wide Body Lead, Plastic Gull Wing Small Outline Package (SOIC) 6G 20-leads, 4.4x6.5mm body - 0.65mm Pitch - Lead Length: 0.6mm Thin Shrink Small Outline Package (TSSOP) 9 7753BS–AVR–08/08 5. Packaging Information 5.1 10 PN ATtiny261/461/861 7753BS–AVR–08/08 ATtiny261/461/861 5.2 TG 11 7753BS–AVR–08/08 12 ATtiny261/461/861 7753BS–AVR–08/08 ATtiny261/461/861 5.3 6G 13 7753BS–AVR–08/08 6. Errata 6.1 Errata ATtiny261 The revision letter in this section refers to the revision of the ATtiny261 device. 6.1.1 Rev A No known errata. 6.2 Errata ATtiny461 The revision letter in this section refers to the revision of the ATtiny461 device. 6.2.1 Rev B No known errata. 6.3 Errata ATtiny861 The revision letter in this section refers to the revision of the ATtiny861 device. 6.3.1 Rev B No known errata. 14 ATtiny261/461/861 7753BS–AVR–08/08 ATtiny261/461/861 7. Datasheet Revision History 7.1 Rev. 7753A – 11/07 1. 7.2 First Datasheet Draft - Initial Automotive Version. Started from Industrial Datasheet doc2588 rev.B - 01/07 Rev. 7753B – 08/08 1. Added 6G product offering to Ordering Information. 15 7753BS–AVR–08/08 Headquarters International Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131 USA Tel: 1(408) 441-0311 Fax: 1(408) 487-2600 Atmel Asia Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimshatsui East Kowloon Hong Kong Tel: (852) 2721-9778 Fax: (852) 2722-1369 Atmel Europe Le Krebs 8, Rue Jean-Pierre Timbaud BP 309 78054 Saint-Quentin-enYvelines Cedex France Tel: (33) 1-30-60-70-00 Fax: (33) 1-30-60-71-11 Atmel Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan Tel: (81) 3-3523-3551 Fax: (81) 3-3523-7581 Technical Support [email protected] Sales Contact www.atmel.com/contacts Product Contact Web Site www.atmel.com Literature Requests www.atmel.com/literature Disclaimer: The information in this document is provided in connection with Atmel products. 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