ATMega chip full datasheet - UCSD Department of Physics

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ATmega48A/PA/88A/PA/168A/PA/328/P34.5 28P3DPIN1E1ASEATING PLANELeB1BA1B2(4 PLACES)Note:CEeB0º ~ 15º1. Dimensions D and E1 do not include mold Flash or Protrusion.Mold Flash or Protrusion shall not exceed 0.25 mm (0.010").REFCOMMON DIMENSIONS(Unit of Measure = mm)SYMBOL MIN NOM MAX NOTEA – – 4.5724A1 0.508 – –D 34.544 – 34.798 Note 1E 7.620 – 8.255E1 7.112 – 7.493 Note 1B 0.381 – 0.533B1 1.143 – 1.397B2 0.762 – 1.143L 3.175 – 3.429C 0.203 – 0.356eB – – 10.160e2.540 TYP09/28/01R2325 Orchard ParkwaySan Jose, CA 95131TITLE28P3, 28-lead (0.300"/7.62 mm Wide) Plastic DualInline Package (PDIP)DRAWING NO.28P3REV.B8271D–AVR–05/11552
ATmega48A/PA/88A/PA/168A/PA/328/P35. Errata35.1 Errata ATmega48AThe revision letter in this section refers to the revision of the ATmega48A device.35.1.1 Rev. D• Analog MUX can be turned off when setting ACME bit1. Analog MUX can be turned off when setting ACME bitIf the ACME (Analog Comparator Multiplexer Enabled) bit in ADCSRB is set while MUX3 inADMUX is '1' (ADMUX[3:0]=1xxx), all MUX'es are turned off until the ACME bit is cleared.Problem Fix/WorkaroundClear the MUX3 bit before setting the ACME bit.35.2 Errata ATmega48PAThe revision letter in this section refers to the revision of the ATmega48PA device.35.2.1 Rev. D• Analog MUX can be turned off when setting ACME bit1. Analog MUX can be turned off when setting ACME bitIf the ACME (Analog Comparator Multiplexer Enabled) bit in ADCSRB is set while MUX3 inADMUX is '1' (ADMUX[3:0]=1xxx), all MUX'es are turned off until the ACME bit is cleared.Problem Fix/WorkaroundClear the MUX3 bit before setting the ACME bit.35.3 Errata ATmega88AThe revision letter in this section refers to the revision of the ATmega88A device.35.3.1 Rev. F• Analog MUX can be turned off when setting ACME bit1. Analog MUX can be turned off when setting ACME bitIf the ACME (Analog Comparator Multiplexer Enabled) bit in ADCSRB is set while MUX3 inADMUX is '1' (ADMUX[3:0]=1xxx), all MUX'es are turned off until the ACME bit is cleared.Problem Fix/WorkaroundClear the MUX3 bit before setting the ACME bit.8271D–AVR–05/11553
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Page 567: Atmel Corporation2325 Orchard Parkw
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ATMega chip full datasheet - UCSD Department of Physics

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