View ATMEGA168PB_9008823.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

8-bit avr microcontroller atmega48pb/88pb/168pb datasheet summary introduction atmel ? atmega48pb/88pb/168pb 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 atmega48pb/88pb/168pb achieves throughputs approaching 1mips/mhz, allowing the system designer to optimize power consumption versus processing speed. features ? advanced risc architecture C 131 instructions C most single clock cycle execution C 32 x 8 general purpose working registers C fully static operation C up to 20mips throughput at 20mhz C on-chip 2-cycle multiplier ? high endurance non-volatile memory segments C 4/8/16kbytes of in-system self-programmable flash program memory C 256/512/512bytes eeprom C 512/1k/1kbytes internal sram C write/erase cycles: 10,000 flash/100,000 eeprom C data retention: 20 years at 85c/100 years at 25c C optional boot code section with independent lock bits ? in-system programming by on-chip boot program ? true read-while-write (rww) operation C programming lock for software security ? atmel ? qtouch ? library support C capacitive touch buttons, sliders and wheels C qtouch and qmatrix ? acquisition C up to 64 sense channels ? peripheral features C two 8-bit timer/counters (tc) with separate prescaler and compare mode atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 this is a summary document. a complete document is available on our web site at www.atmel.com
C 16-bit timer/counter with separate prescaler, compare mode, and capture mode C real time counter (rtc) with separate oscillator C six pulse width modulation (pwm) channels C 8-channel 10-bit analog-to-digital converter (adc) with temperature measurement C programmable serial usart with start-of-frame detection C master/slave serial interface (spi) C byte-oriented two-wire serial interface (twi), philips i 2 c compatible C programmable watchdog timer (wdt) with separate on-chip oscillator C on-chip analog comparator (ac) C interrupt and wake-up on pin change ? 256-channel capacitive touch and proximity sensing ? special microcontroller features C power-on reset (por) and programmable brown-out detection (bod) C internal calibrated oscillator C external and internal interrupt sources C six sleep modes: idle, adc noise reduction, power-save, power-down, standby, and extended standby C unique device id ? i/o C 27 programmable i/o pins ? packages C 32-pin tqfp, vfqfn ? operating voltage C 1.8v C 5.5v ? temperature range C -40c to 105c ? speed grades C 0 - 4mhz at 1.8-5.5v C 0 - 10mhz at 2.7-5.5.v C 0 - 20mhz at 4.5-5.5v ? power consumption at 1mhz, 1.8v, 25c C active mode: 0.35ma C power-down mode: 0.23a C power-save mode: <1.4a (including 32khz rtc) atmel atmega48pb/88pb/168pb [datasheet] atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 2
table of contents introduction......................................................................................................................1 features.......................................................................................................................... 1 1. description.................................................................................................................4 2. configuration summary............................................................................................. 5 3. ordering information..................................................................................................6 3.1. atmega48pb............................................................................................................................... 6 3.2. atmega88pb............................................................................................................................... 6 3.3. ATMEGA168PB ............................................................................................................................ 7 4. block diagram........................................................................................................... 8 5. pin configurations..................................................................................................... 9 5.1. pin descriptions..........................................................................................................................10 6. i/o multiplexing........................................................................................................ 13 7. comparison between processors........................................................................... 14 8. resources................................................................................................................15 9. data retention.........................................................................................................16 10. about code examples.............................................................................................17 11. capacitive touch sensing....................................................................................... 18 11.1. qtouch library........................................................................................................................... 18 12. packaging information.............................................................................................19 12.1. 32a............................................................................................................................................. 19 12.2. 32ms1........................................................................................................................................ 20 13. errata.......................................................................................................................21 13.1. errata atmega48pb...................................................................................................................21 13.2. errata atmega88pb...................................................................................................................22 13.3. errata ATMEGA168PB.................................................................................................................23
1. description 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 atmega48pb/88pb/168pb provides the following features: 4/8/16kbytes of in-system programmable flash with read-while-write capabilities, 256/512/512 bytes eeprom, 512/1k/1kbytes sram, 27 general purpose i/o lines, 32 general purpose working registers, three flexible timer/counters with compare modes, internal and external interrupts, a serial programmable usart, a byte-oriented 2- wire serial interface (i2c), an spi serial port, a 6-channel 10-bit adc (8 channels in tqfp and vfqfn packages), a programmable watchdog timer with internal oscillator, and six software selectable power saving modes. the idle mode stops the cpu while allowing the sram, timer/counters, usart, 2-wire serial interface, spi port, and interrupt system to continue functioning. the power-down mode saves the register contents but freezes the oscillator, disabling all other chip functions until the next interrupt or hardware reset. in power-save mode, the asynchronous timer continues to run, allowing the user to maintain a timer base while the rest of the device is sleeping. the adc noise reduction mode stops the cpu and all i/o modules except asynchronous timer and adc, to minimize switching noise during adc conversions. in standby mode, the crystal/resonator oscillator is running while the rest of the device is sleeping. this allows very fast start-up combined with low power consumption. atmel ? offers the qtouch ? library for embedding capacitive touch buttons, sliders and wheels functionality into avr ? microcontrollers. the patented charge-transfer signal acquisition offers robust sensing and includes fully debounced reporting of touch keys and includes adjacent key suppression ? (aks ? ) technology for unambiguous detection of key events. the easy-to-use qtouch composer allows you to explore, develop and debug your own touch applications. the device is manufactured using atmels high density non-volatile memory technology. the on-chip isp flash allows the program memory to be reprogrammed in-system through an spi serial interface, by a conventional non-volatile memory programmer, or by an on-chip boot program running on the avr core. the boot program can use any interface to download the application program in the application flash memory. software in the boot flash section will continue to run while the application flash section is updated, providing true read-while-write operation. by combining an 8-bit risc cpu with in-system self-programmable flash on a monolithic chip, the atmel atmega48pb/88pb/168pb is a powerful microcontroller that provides a highly flexible and cost effective solution to many embedded control applications. the atmega48pb/88pb/168pb 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. atmel atmega48pb/88pb/168pb [datasheet] atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 4
2. configuration summary table 2-1.?configuration summary atmega48pb atmega88pb ATMEGA168PB pin count 32 32 32 flash (kb) 4 8 16 sram (bytes) 512 1024 1024 eeprom (bytes) 256 512 512 max i/o pins 27 spi 1 twi (i 2 c) 1 usart 1 adc 10-bit 15ksps adc channels 8 ac 1 8-bit timer/counters 2 16-bit timer/counters 1 pwm channels 6 operating voltage 1.8v - 5.5v max operating frequency 20mhz temperature range -40c to +105c atmel atmega48pb/88pb/168pb [datasheet] atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 5
3. ordering information 3.1. atmega48pb speed [mhz] (3) power supply [v] ordering code (2) package (1) operational range 20 1.8 - 5.5 atmega48pb-au atmega48pb-aur (4) atmega48pb-mu atmega48pb-mur (4) 32a 32a 32ms1 32ms1 industrial (-40c to +85c) atmega48pb-an atmega48pb-anr (4) atmega48pb-mn atmega48pb-mnr (4) 32a 32a 32ms1 32ms1 industrial (-40c to +105c) note: 1. this device can also be supplied in wafer form. 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. see speed grades on page 304. 4. tape & reel. package type 32a 32-lead, thin (1.0mm) plastic quad flat package (tqfp) 32ms1 32-pad, 5.0x5.0x0.9mm body, lead pitch 0.50mm, very-thin fine pitch, quad flat no lead package (vfqfn) 3.2. atmega88pb speed [mhz] (3) power supply [v] ordering code (2) package (1) operational range 20 1.8 - 5.5 atmega88pb-au atmega88pb-aur (4) atmega88pb-mu atmega88pb-mur (4) 32a 32a 32ms1 32ms industrial (-40c to +85c) atmega88pb-an atmega88pb-anr (4) atmega88pb-mn atmega88pb-mnr (4) 32a 32a 32ms1 32ms1 industrial (-40c to +105c) note: 1. this device can also be supplied in wafer form. 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. see speed grades on page 304. atmel atmega48pb/88pb/168pb [datasheet] atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 6
4. tape & reel. package type 32a 32-lead, thin (1.0mm) plastic quad flat package (tqfp) 32ms1 32-pad, 5.0x5.0x0.9mm body, lead pitch 0.50mm, very-thin fine pitch, quad flat no lead package (vfqfn) 3.3. ATMEGA168PB speed [mhz] power supply [v] ordering code (2) package (1) operational range 20 1.8 - 5.5 ATMEGA168PB-au ATMEGA168PB-aur (3) ATMEGA168PB-mu ATMEGA168PB-mur (3) 32a 32a 32ms1 32ms1 industrial (-40c to +85c) ATMEGA168PB-an ATMEGA168PB-anr (3) ATMEGA168PB-mn ATMEGA168PB-mnr (3) 32a 32a 32ms1 32ms1 industrial (-40c to +105c) note: 1. this device can also be supplied in wafer form. 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. tape & reel. package type 32a 32-lead, thin (1.0mm) plastic quad flat package (tqfp) 32ms1 32-pad, 5.0x5.0x0.9mm body, lead pitch 0.50mm, very-thin fine pitch, quad flat no lead package (vfqfn) atmel atmega48pb/88pb/168pb [datasheet] atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 7
4. block diagram figure 4-1.?block diagram cpu usart 0 adc adc[7:0] aref rxd0 txd0 xck0 i/o ports d a t a b u s gpior[2:0] sram ocd extint flash nvm programming debugwire i n / o u t d a t a b u s tc 0 (8-bit) spi ac ain0 ain1 aco adcmux eeprom eepromif tc 1 (16-bit) oc1a/b t1 icp1 tc 2 (8-bit async) twi sda scl internal reference watchdog timer power management and clock control vcc gnd clock generation 8mhz calib rc 128khz int osc 32.768khz xosc external clock power supervision por/bod & reset xtal2 / tosc2 reset xtal1 / tosc1 16mhz lp xosc int[1:0] pcint[23:16], pcint[14:0] oc0a oc0b t0 miso mosi sck ss oc2a oc2b pb[7:0] pc[6:0] pd[7:0] pe[3:0] spiprog parprog atmel atmega48pb/88pb/168pb [datasheet] atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 8
5. pin configurations figure 5-1.?32 tqfp pinout atmega48pb/88pb/168pb 1 2 3 4 32 31 30 29 28 27 26 5 6 7 8 24 23 22 21 20 19 18 17 25 9 10 11 12 13 14 15 16 pd0 (rxd/pcint16) pd1 (txd/pcint17) pd2 (int0/pcint18) pc6 (reset/pcint14) pc2 (adc2/pcint10) pc3 (adc3/pcint11) pc4 (adc4/sda/pcint12) pc5 (adc5/scl/pcint13) pc0 (adc0/pcint8) pc1 (adc1/pcint9) gnd pe2 (adc6) avcc pb5 (sck/pcint5) aref pe3 (adc7) (pcint20/xck/t0) pd4 gnd vcc (aco) pe0 pe1 (pcint6/xtal1/tosc1) pb6 (pcint7/xtal2/tosc2) pb7 (pcint23/ain1) pd7 (pcint1/oc1a) pb1 (pcint2/ss/oc1b) pb2 (pcint4/miso) pb4 (pcint19/oc2b/int1) pd3 (pcint21/oc0b/t1) pd5 (pcint22/oc0a/ain0) pd6 (pcint0/clko/icp1) pb0 (pcint3/mosi/oc2a) pb3 atmel atmega48pb/88pb/168pb [datasheet] atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 9
figure 5-2.?32 vqfn pinout atmega48pb/88pb/168pb 1 2 3 4 32 31 30 29 28 27 26 5 6 7 8 24 23 22 21 20 19 18 17 25 9 10 11 12 13 14 15 16 note: bottom pad should be soldered to ground (pcint21/oc0b/t1) pd5 (pcint22/oc0a/ain0) pd6 (pcint23/ain1) pd7 (pcint0/clko/icp1) pb0 (pcint1/oc1a) pb1 (pcint2/ss/oc1b) pb2 (pcint3/mosi/oc2a) pb3 (pcint4/miso) pb4 (pcint19/oc2b/int1) pd3 (pcint20/xck/t0) pd4 gnd vcc (aco) pe0 pe1 (pcint6/xtal1/tosc1) pb6 (pcint7/xtal2/tosc2) pb7 pd0 (rxd/pcint16) pd1 (txd/pcint17) pd2 (int0/pcint18) pc6 (reset/pcint14) pc2 (adc2/pcint10) pc3 (adc3/pcint11) pc4 (adc4/sda/pcint12) pc5 (adc5/scl/pcint13) pc0 (adc0/pcint8) pc1 (adc1/pcint9) gnd pe2 (adc6) avcc pb5 (sck/pcint5) aref pe3 (adc7) 5.1. pin descriptions 5.1.1. vcc digital supply voltage. 5.1.2. gnd ground. atmel atmega48pb/88pb/168pb [datasheet] atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 10
5.1.3. port b (pb[7:0]) xtal1/xtal2/tosc1/tosc2 port b is an 8-bit bi-directional i/o port with internal pull-up resistors (selected for each bit). the port b output buffers have symmetrical drive characteristics with both high sink and source capability. as inputs, port b pins that are externally pulled low will source current if the pull-up resistors are activated. the port b pins are tri-stated when a reset condition becomes active, even if the clock is not running. depending on the clock selection fuse settings, pb6 can be used as input to the inverting oscillator amplifier and input to the internal clock operating circuit. depending on the clock selection fuse settings, pb7 can be used as output from the inverting oscillator amplifier. if the internal calibrated rc oscillator is used as chip clock source, pb[7:6] is used as tosc[2:1] input for the asynchronous timer/counter2 if the as2 bit in assr is set. 5.1.4. port c (pc[5:0]) port c is a 7-bit bi-directional i/o port with internal pull-up resistors (selected for each bit). the pc[5:0] output buffers have symmetrical drive characteristics with both high sink and source capability. as inputs, port c pins that are externally pulled low will source current if the pull-up resistors are activated. the port c pins are tri-stated when a reset condition becomes active, even if the clock is not running. 5.1.5. pc6/reset if the rstdisbl fuse is programmed, pc6 is used as an i/o pin. note that the electrical characteristics of pc6 differ from those of the other pins of port c. if the rstdisbl fuse is unprogrammed, pc6 is used as a reset input. a low level on this pin for longer than the minimum pulse length will generate a reset, even if the clock is not running. shorter pulses are not guaranteed to generate a reset. the various special features of port c are elaborated in the alternate functions of port c section. 5.1.6. port d (pd[7:0]) port d is an 8-bit bi-directional i/o port with internal pull-up resistors (selected for each bit). the port d output buffers have symmetrical drive characteristics with both high sink and source capability. as inputs, port d pins that are externally pulled low will source current if the pull-up resistors are activated. the port d pins are tri-stated when a reset condition becomes active, even if the clock is not running. 5.1.7. port e (pe[3:0]) port e is an 4-bit bi-directional i/o port with internal pull-up resistors (selected for each bit). the port e output buffers have symmetrical drive characteristics with both high sink and source capability. 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. 5.1.8. av cc av cc is the supply voltage pin for the a/d converter, pc[3:0], and pe[3:2]. it should be externally connected to v cc , even if the adc is not used. if the adc is used, it should be connected to v cc through a low-pass filter. note that pc[6:4] use digital supply voltage, v cc . 5.1.9. aref aref is the analog reference pin for the a/d converter. atmel atmega48pb/88pb/168pb [datasheet] atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 11
5.1.10. adc[7:6] (tqfp and vfqfn package only) in the tqfp and vfqfn package, adc[7:6] serve as analog inputs to the a/d converter. these pins are powered from the analog supply and serve as 10-bit adc channels. atmel atmega48pb/88pb/168pb [datasheet] atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 12
6. i/o multiplexing each pin is by default controlled by the port as a general purpose i/o and alternatively it can be assigned to one of the peripheral functions. the following table describes the peripheral signals multiplexed to the port i/o pins. table 6-1.?port function multiplexing no pad extint pcint adc/ac osc t/c # 0 t/c # 1 usart i2c spi 1 pd[3] int1 pcint19 oc2b 2 pd[4] pcint20 t0 xck0 3 pe[0] pcint24 aco icp4 sda1 4 vcc 5 gnd 6 pe[1] pcint25 tc4 scl1 7 pb[6] pcint6 xtal1/tosc1 8 pb[7] pcint7 xtal2/tosc2 9 pd[5] pcint21 oc0b t1 10 pd[6] pcint22 ain0 oc0a 11 pd[7] pcint23 ain1 12 pb[0] pcint0 clko icp1 13 pb[1] pcint1 oc1a 14 pb[2] pcint2 oc1b ss0 15 pb[3] pcint3 oc2a txd1 mosi0 16 pb[4] pcint4 rxd1 miso0 17 pb[5] pcint5 xck0 sck0 18 avcc 19 pe[2] pcint26 adc6 icp3 ss1 20 aref 21 gnd 22 pe[3] pcint27 adc7 t3 mosi1 23 pc[0] pcint8 adc0 miso1 24 pc[1] pcint9 adc1 sck1 25 pc[2] pcint10 adc2 26 pc[3] pcint11 adc3 27 pc[4] pcint12 adc4 sda0 28 pc[5] pcint13 adc5 scl0 29 pc[6]/ reset pcint14 30 pd[0] pcint16 oc3a rxd0 31 pd[1] pcint17 oc4a txd0 32 pd[2] int0 pcint18 oc3b oc4b atmel atmega48pb/88pb/168pb [datasheet] atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 13
7. comparison between processors the atmega48pb/88pb/168pb differ only in memory sizes, boot loader support, and interrupt vector sizes. the table below summarizes the different memory and interrupt vector sizes for the devices. table 7-1.?memory size summary device flash eeprom ram interrupt vector size atmega48pb 4kbytes 256bytes 512bytes 1 instruction word/vector atmega88pb 8kbytes 512bytes 1kbytes 1 instruction word/vector ATMEGA168PB 16kbytes 512bytes 1kbytes 2 instruction words/vector atmega88pb/168pb support a real read-while-write self-programming mechanism (spm). the spm instruction can only execute from the separate boot loader section. in atmega48pb there is no read- while-write support and no separate boot loader section. the spm instruction can execute from the entire flash. atmel atmega48pb/88pb/168pb [datasheet] atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 14
8. resources a comprehensive set of development tools, application notes and datasheets are available for download on http://www.atmel.com/avr . atmel atmega48pb/88pb/168pb [datasheet] atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 15
9. data retention reliability qualification results show that the projected data retention failure rate is much less than 1 ppm over 20 years at 85c or 100 years at 25c. atmel atmega48pb/88pb/168pb [datasheet] atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 16
10. about code examples this documentation contains simple code examples that briefly show how to use various parts of the device. these code examples assume that the part specific header file is included before compilation. be aware that not all c compiler vendors include bit definitions in the header files and interrupt handling in c is compiler dependent. confirm with the c compiler documentation for more details. for i/o registers located in extended i/o map, in, out, sbis, sbic, cbi, and sbi instructions must be replaced with instructions that allow access to extended i/o. typically lds and sts combined with sbrs, sbrc, sbr, and cbr. atmel atmega48pb/88pb/168pb [datasheet] atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 17
11. capacitive touch sensing 11.1. qtouch library the atmel ? qtouch ? library provides a simple to use solution to realize touch sensitive interfaces on most atmel avr ? microcontrollers. the qtouch library includes support for the atmel qtouch and atmel qmatrix ? acquisition methods. touch sensing can be added to any application by linking the appropriate atmel qtouch library for the avr microcontroller. this is done by using a simple set of apis to define the touch channels and sensors, and then calling the touch sensing apis to retrieve the channel information and determine the touch sensor states. the qtouch library is free and downloadable from the atmel website at the following location: http:// www.atmel.com/technologies/touch/ . for implementation details and other information, refer to the atmel qtouch library user guide - also available for download from the atmel website. atmel atmega48pb/88pb/168pb [datasheet] atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 18
12. packaging information 12.1. 32a title drawing no. rev. 32a, 32-lead, 7 x 7mm body size, 1.0mm body thickness, 0.8mm lead pitch, thin profile plastic quad flat package (tqfp) c 32a 2010-10-20 pin 1 identifier 0~7 pin 1 l c a1 a2 a d1 d e e1 e b notes: 1. this package conforms to jedec reference ms-026, variation aba. 2. dimensions d1 and e1 do not include mold protrusion. allowable protrusion is 0.25mm per side. dimensions d1 and e1 are maximum plastic body size dimensions including mold mismatch. 3. lead coplanarity is 0.10mm maximum. a C C 1.20 a1 0.05 C 0.15 a2 0.95 1.00 1.05 d 8.75 9.00 9.25 d1 6.90 7.00 7.10 note 2 e 8.75 9.00 9.25 e1 6.90 7.00 7.10 note 2 b 0.30 C 0.45 c 0.09 C 0.20 l 0.45 C 0.75 e 0.80 typ common dimensions (unit of measure = mm) symbol min nom max note atmel atmega48pb/88pb/168pb [datasheet] atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 19
12.2. 32ms1 drawing no. rev. title gpc 32ms1 a 12/4/13 32ms1, 32-pad 5.0x5.0x0.9 mm body, 0.50mm pitch, 3.1x3.1 mm exposed pad, saw singulated thermally enhanced plastic very-thin fine pitch, quad flat no lead package (vfqfn) zmf common dimensions (unit of measure = mm) symbol min typ max note a 0.80 - 0.90 a1 0.00 - 0.05 a3 0.20 ref b 0.18 0.25 0.30 2 d 4.90 5.00 5.10 d2 3.00 3.10 3.20 e 4.90 5.00 5.10 e2 3.00 3.10 3.20 e - 0.50 - l 0.30 0.40 0.50 k 0.20 - - package drawing contact: packagedrawings@atmel.com e 2 1 32 pin 1 id c 0.10 2x top view side view bottom view c seating plane c 0.08 a1 a c 0.10 e2 e 1 32 option b k (32x) b see option a,b 1 1 pin # 1 id chamfer pin # 1 id notch note: 1. refer to jedec drawing mo-220, variation vhhd-2 (figure 1/saw singulation) 2. dimension b applies to metalized terminal and is measured between 0.15mm and 0.30mm from the terminal tip. if the terminal has the optional radius on the other end of the terminal, the dimensions should not be measured in that radius area. e/2 pin 1 corner option a 32 32 (c 0.30) (r 0.20) d2 (32x) l 2x 0.10 c d a3 2 atmel atmega48pb/88pb/168pb [datasheet] atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 20
13. errata 13.1. errata atmega48pb the revision letter in this section refers to the revision of the atmega48pb device. 13.1.1. rev. a C wrong device id when using debugwire C power consumption in power save modes C usart start-up functionality not working C external capacitor on aref pin 1.) wrong device id when using debugwire the device id returned using debugwire is incorrect. problem fix/workaround none. 2.) power consumption in power save modes power consumption in power save modes will be higher due to improper control of internal power management. problem fix/workaround none. 3.) usart start-up functionality not working while in power save modes, the usart start bit detection logic fails to wakeup the device. problem fix/workaround none. 4.) external capacitor on aref pin if an external capacitor is used on the analog reference pin (aref), it should be equal to or larger than 100nf. smaller capacitor value can make the aref buffer unstable with large ringing which will reduce the accuracy of the adc. problem fix/workaround none. 13.1.2. rev. b C external capacitor on aref pin 1.) external capacitor on aref pin if an external capacitor is used on the analog reference pin (aref), it should be equal to or larger than 100nf. smaller capacitor value can make the aref buffer unstable with large ringing which will reduce the accuracy of the adc. problem fix/workaround none. atmel atmega48pb/88pb/168pb [datasheet] atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 21
13.1.3. rev. c no known errata. 13.1.4. rev. d to j not sampled. 13.1.5. rev. k no known errata. 13.2. errata atmega88pb the revision letter in this section refers to the revision of the atmega88pb device. 13.2.1. rev. a C wrong device id when using debugwire C power consumption in power save modes C usart start-up functionality not working C external capacitor on aref pin 1.) wrong device id when using debugwire the device id returned using debugwire is incorrect. problem fix/workaround none. 2.) power consumption in power save modes power consumption in power save modes will be higher due to improper control of internal power management. problem fix/workaround none. 3.) usart start-up functionality not working while in power save modes, the usart start bit detection logic fails to wakeup the device. problem fix/workaround none. 4.) external capacitor on aref pin if an external capacitor is used on the analog reference pin (aref), it should be equal to or larger than 100nf. smaller capacitor value can make the aref buffer unstable with large ringing which will reduce the accuracy of the adc. problem fix/workaround none. 13.2.2. rev. b C external capacitor on aref pin 1.) external capacitor on aref pin atmel atmega48pb/88pb/168pb [datasheet] atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 22
if an external capacitor is used on the analog reference pin (aref), it should be equal to or larger than 100nf. smaller capacitor value can make the aref buffer unstable with large ringing which will reduce the accuracy of the adc. problem fix/workaround none. 13.2.3. rev. c no known errata. 13.2.4. rev. d to j not sampled. 13.2.5. rev. k no known errata. 13.3. errata ATMEGA168PB the revision letter in this section refers to the revision of the ATMEGA168PB device. 13.3.1. rev. a C wrong device id when using debugwire C power consumption in power save modes C usart start-up functionality not working C external capacitor on aref pin 1.) wrong device id when using debugwire the device id returned using debugwire is incorrect. problem fix/workaround none. 2.) power consumption in power save modes power consumption in power save modes will be higher due to improper control of internal power management. problem fix/workaround none 3.) usart start-up functionality not working while in power save modes, the usart start bit detection logic fails to wakeup the device. problem fix/workaround none. 4.) external capacitor on aref pin if an external capacitor is used on the analog reference pin (aref), it should be equal to or larger than 100nf. smaller capacitor value can make the aref buffer unstable with large ringing which will reduce the accuracy of the adc. problem fix/workaround atmel atmega48pb/88pb/168pb [datasheet] atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 23
none. 13.3.2. rev. b C power consumption in power save modes C external capacitor on aref pin 1.) power consumption in power save modes power consumption in power save modes will be higher due to improper control of internal power management. problem fix/workaround none 2.) external capacitor on aref pin if an external capacitor is used on the analog reference pin (aref), it should be equal to or larger than 100nf. smaller capacitor value can make the aref buffer unstable with large ringing which will reduce the accuracy of the adc. problem fix/workaround none. 13.3.3. rev. c C external capacitor on aref pin 1.) external capacitor on aref pin if an external capacitor is used on the analog reference pin (aref), it should be equal to or larger than 100nf. smaller capacitor value can make the aref buffer unstable with large ringing which will reduce the accuracy of the adc. problem fix/workaround none. 13.3.4. rev. d no known errata. 13.3.5. rev. d to m not sampled. 13.3.6. rev. n no known errata. atmel atmega48pb/88pb/168pb [datasheet] atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 24
atmel corporation 1600 technology drive, san jose, ca 95110 usa t: (+1)(408) 441.0311 f: (+1)(408) 436.4200 | www.atmel.com ? 2016 atmel corporation. / rev.: atmel-42176g-atmega48pb/88pb/168pb_datasheet_summary-03/2016 atmel ? , atmel logo and combinations thereof, enabling unlimited possibilities ? , avr ? , and others are registered trademarks or trademarks of atmel corporation in u.s. and other countries. other terms and product names may be trademarks of others. disclaimer: the information in this document is provided in connection with atmel products. no license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of atmel products. except as set forth in the atmel terms and conditions of sales located on the atmel website, atmel assumes no liability whatsoever and disclaims any express, implied or statutory warranty relating to its products including, but not limited to, the implied warranty of merchantability, fitness for a particular purpose, or non-infringement. in no event shall atmel be liable for any direct, indirect, consequential, punitive, special or incidental damages (including, without limitation, damages for loss and profits, business interruption, or loss of information) arising out of the use or inability to use this document, even if atmel has been advised of the possibility of such damages. atmel makes no representations or warranties with respect to the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and products descriptions at any time without notice. atmel does not make any commitment to update the information contained herein. unless specifically provided otherwise, atmel products are not suitable for, and shall not be used in, automotive applications. atmel products are not intended, authorized, or warranted for use as components in applications intended to support or sustain life. safety-critical, military, and automotive applications disclaimer: atmel products are not designed for and will not be used in connection with any applications where the failure of such products would reasonably be expected to result in significant personal injury or death (safety-critical applications) without an atmel officer's specific written consent. safety-critical applications include, without limitation, life support devices and systems, equipment or systems for the operation of nuclear facilities and weapons systems. atmel products are not designed nor intended for use in military or aerospace applications or environments unless specifically designated by atmel as military-grade. atmel products are not designed nor intended for use in automotive applications unless specifically designated by atmel as automotive-grade.

▲Up To Search▲

Price & Availability of ATMEGA168PB

	To Download ATMEGA168PB Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .