ATmega128 (961723), страница 65
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External Data Memory Characteristics, 2.7 - 5.5 Volts, SRWn1 = 1, SRWn0 = 14 MHz OscillatorSymbolParameter01/tCLCLOscillator Frequency10tRLDVRead Low to Data Valid12tRLRHRD Pulse Width7353.0tCLCL-15ns14tWHDXData Hold After WR High4852.0tCLCL-15ns15tDVWHData Valid to WR High7503.0tCLCLns16tWLWHWR Pulse Width7353.0tCLCL-15ns332MinMaxVariable OscillatorMinMaxUnit0.08MHz6903.0tCLCL-60nsATmega1282467M–AVR–11/04ATmega128Figure 156. External Memory Timing (SRWn1 = 0, SRWn0 = 0T1T2T3T4System Clock (CLKCPU )1ALE4A15:87Prev. addr.Address15DA7:0Prev. data3aAddress13XXData14166Write2WR93bDA7:0 (XMBK = 0)Data5ReadAddress1110812RDFigure 157. External Memory Timing (SRWn1 = 0, SRWn0 = 1)T1T2T3T4T5System Clock (CLKCPU )1ALE4A15:87Prev. addr.Address15DA7:0Prev.
data3aAddress13DataXX14166Write2WR93bAddress11Data5ReadDA7:0 (XMBK = 0)10812RD3332467M–AVR–11/04Figure 158. External Memory Timing (SRWn1 = 1, SRWn0 = 0)T1T2T3T5T4T6System Clock (CLKCPU )1ALE4A15:87AddressPrev. addr.15DA7:0Prev. data3aAddress13XXData14166Write2WR93bDA7:0 (XMBK = 0)Address115ReadData10812RDFigure 159. External Memory Timing (SRWn1 = 1, SRWn0 = 1)(1)T1T2T3T4T6T5T7System Clock (CLKCPU )1ALE4A15:87AddressPrev.
addr.153aDA7:0Prev. dataAddress13XXData14166Write2WR93bAddress11Data5ReadDA7:0 (XMBK = 0)10812RDNote:3341. The ALE pulse in the last period (T4-T7) is only present if the next instructionaccesses the RAM (internal or external).ATmega1282467M–AVR–11/04ATmega128ATmega128 TypicalCharacteristicsThe following charts show typical behavior. These figures are not tested during manufacturing. All current consumption measurements are performed with all I/O pinsconfigured as inputs and with internal pull-ups enabled.
A sine wave generator with railto-rail output is used as clock source.The power consumption in Power-down mode is independent of clock selection.The current consumption is a function of several factors such as: operating voltage,operating frequency, loading of I/O pins, switching rate of I/O pins, code executed andambient temperature. The dominating factors are operating voltage and frequency.The current drawn from capacitive loaded pins may be estimated (for one pin) asCL*VCC*f where CL = load capacitance, VCC = operating voltage and f = average switching frequency of I/O pin.The parts are characterized at frequencies higher than test limits. Parts are not guaranteed to function properly at frequencies higher than the ordering code indicates.The difference between current consumption in Power-down mode with WatchdogTimer enabled and Power-down mode with Watchdog Timer disabled represents the differential current drawn by the Watchdog Timer.Active Supply CurrentFigure 160.
Active Supply Current vs. Frequency (0.1 - 1.0 MHz)ACTIVE SUPPLY CURRENT vs. FREQUENCY0.1 - 1.0 MHz3.55.5 V35.0 V4.5 V4.0 V3.3 V2.7 VICC (mA)2.521.510.5000.10.20.30.40.50.60.70.80.91Frequency (MHz)3352467M–AVR–11/04Figure 161. Active Supply Current vs. Frequency (1 - 20 MHz)ACTIVE SUPPLY CURRENT vs. FREQUENCY1 - 20 MHz45405.0 V354.5 VICC (mA)3025204.0 V153.6 V3.3 V3.0 V2.7 V105002468101214161820Frequency (MHz)Figure 162. Active Supply Current vs.
VCC (Internal RC Oscillator, 1 MHz)ACTIVE SUPPLY CURRENT vs. VCCINTERNAL RC OSCILLATOR, 1 MHz425 ˚C-40 ˚C85 ˚CICC (mA)3.532.521.52.533.544.555.5VCC (V)336ATmega1282467M–AVR–11/04ATmega128Figure 163. Active Supply Current vs. VCC (Internal RC Oscillator, 2 MHz)ACTIVE SUPPLY CURRENT vs. VCCINTERNAL RC OSCILLATOR, 2 MHz8-40 °C25 °C85 °C76ICC (mA)5432102.533.544.555.5VCC (V)Figure 164.
Active Supply Current vs. VCC (Internal RC Oscillator, 4 MHz)ACTIVE SUPPLY CURRENT vs. VCCINTERNAL RC OSCILLATOR, 4 MHz14-40 °C25 °C85 °C12ICC (mA)10864202.533.544.555.5VCC (V)3372467M–AVR–11/04Figure 165. Active Supply Current vs. VCC (Internal RC Oscillator, 8 MHz)ACTIVE SUPPLY CURRENT vs. VCCINTERNAL RC OSCILLATOR, 8 MHz25-40 °C25 °C85 °C20ICC (mA)1510502.533.544.555.5VCC (V)Figure 166. Active Supply Current vs.
VCC (32 kHz External Oscillator)ACTIVE SUPPLY CURRENT vs. VCC32 kHz EXTERNAL OSCILLATOR14012025 °CICC (uA)1008060402002.533.544.555.5VCC (V)338ATmega1282467M–AVR–11/04ATmega128Idle Supply CurrentFigure 167. Idle Supply Current vs. Frequency (0.1 - 1.0 MHz)IDLE SUPPLY CURRENT vs. FREQUENCY0.1 - 1.0 MHz1.41.25.5 VICC (mA)15.0 V4.5 V0.84.0 V3.6 V3.3 V3.0 V2.7 V0.60.40.2000.10.20.30.40.50.60.70.80.91Frequency (MHz)Figure 168. Idle Supply Current vs. Frequency (1 - 20 MHz)IDLE SUPPLY CURRENT vs. FREQUENCY1 - 20 MHz255.5 V205.0 V4.5 V15ICC (mA)4.0 V103.6 V3.3 V53.0 V2.7 V002468101214161820Frequency (MHz)3392467M–AVR–11/04Figure 169. Idle Supply Current vs.
VCC (Internal RC Oscillator, 1 MHz)IDLE SUPPLY CURRENT vs. VCCINTERNAL RC OSCILLATOR, 1 MHz1.685 °C25 °C-40 °C1.41.2ICC (mA)10.80.60.40.202.533.544.555.5VCC (V)Figure 170. Idle Supply Current vs. VCC (Internal RC Oscillator, 2 MHz)IDLE SUPPLY CURRENT vs. VCCINTERNAL RC OSCILLATOR, 2 MHz385 °C25 °C-40 °C2.5ICC (mA)21.510.502.533.544.555.5VCC (V)340ATmega1282467M–AVR–11/04ATmega128Figure 171. Idle Supply Current vs.
VCC (Internal RC Oscillator, 4 MHz)IDLE SUPPLY CURRENT vs. VCCINTERNAL RC OSCILLATOR, 4 MHz6-40 °C25 °C85 °C5ICC (mA)432102.533.544.555.5VCC (V)Figure 172. Idle Supply Current vs. VCC (Internal RC Oscillator, 8 MHz)IDLE SUPPLY CURRENT vs. VCCINTERNAL RC OSCILLATOR, 8 MHz12-40 °C25 °C85 °C10ICC (mA)864202.533.544.555.5VCC (V)3412467M–AVR–11/04Figure 173. Idle Supply Current vs. VCC (32 kHz External Oscillator)IDLE SUPPLY CURRENT vs. VCC32 kHz EXTERNAL OSCILLATOR605025 °CICC (uA)4030201002.533.544.555.5VCC (V)Power-down Supply CurrentFigure 174. Power-down Supply Current vs.
VCC (Watchdog Timer Disabled)POWER-DOWN SUPPLY CURRENT vs. VCCWATCHDOG TIMER DISABLED4.5485 ˚C3.5ICC (uA)32.521.5-40 ˚C25 ˚C10.502.533.544.555.5VCC (V)342ATmega1282467M–AVR–11/04ATmega128Figure 175. Power-down Supply Current vs. VCC (Watchdog Timer Enabled)POWER-DOWN SUPPLY CURRENT vs. VCCWATCHDOG TIMER ENABLED353085 ˚C25 ˚C-40 ˚CICC (uA)25201510502.533.544.555.5VCC (V)Power-save Supply CurrentFigure 176. Power-save Supply Current vs. VCC (Watchdog Timer Disabled)POWER-SAVE SUPPLY CURRENT vs. VCCWATCHDOG TIMER DISABLED1625 °C1412ICC (uA)10864202.533.544.555.5VCC (V)3432467M–AVR–11/04Standby Supply CurrentFigure 177.
Standby Supply Current vs. VCC,STANDBY SUPPLY CURRENT vs. VCC0.26 MHz Xtal0.186 MHz Res0.160.144 MHz Res4 MHz XtalICC (mA)0.120.12 MHz Res2 MHz Xtal0.08455 kHz Res1 MHz Res0.060.040.0202.533.544.555.5VCC (V)Figure 178. Standby Supply Current vs. VCC (CKOPT programmed)STANDBY SUPPLY CURRENT vs. VCCCKOPT programmed2.516 MHz Xtal212 MHz Xtal1.5ICC (mA)6 MHz Xtal4 MHz Xtal10.502.533.544.555.5VCC (V)344ATmega1282467M–AVR–11/04ATmega128Pin Pull-upFigure 179. I/O Pin Pull-up Resistor Current vs. Input Voltage (VCC = 5V)I/O PIN PULL-UP RESISTOR CURRENT vs.
INPUT VOLTAGEVcc = 5V16014085 °C25 °C120-40 °CIOP (uA)10080604020000.511.522.533.544.55VOP (V)Figure 180. I/O Pin Pull-up Resistor Current vs. Input Voltage (VCC = 2.7V)I/O PIN PULL-UP RESISTOR CURRENT vs. INPUT VOLTAGEVcc = 2.7V8085 °C 25 °C7060-40 °CIOP (uA)5040302010000.511.522.53VOP (V)3452467M–AVR–11/04Pin Driver StrengthFigure 181. I/O Pin Source Current vs. Output Voltage (VCC = 5V)I/O PIN SOURCE CURRENT vs.
OUTPUT VOLTAGEVCC = 5V9080-40 °C7025 °CIOH (mA)6085 °C504030201002.533.544.55VOH (V)Figure 182. I/O Pin Source Current vs. Output Voltage (VCC = 2.7V)I/O PIN SOURCE CURRENT vs. OUTPUT VOLTAGEVCC = 2.7V30-40 °C2525 °C85 °CIOH (mA)201510500.511.522.53VOH (V)346ATmega1282467M–AVR–11/04ATmega128Figure 183.
I/O Pin Sink Current vs. Output Voltage (VCC = 5V)I/O PIN SINK CURRENT vs. OUTPUT VOLTAGEVCC = 5V90-40 °C8025 °C70IOL (mA)6085 °C5040302010000.511.522.5VOL (V)Figure 184. I/O Pin Sink Current vs. Output Voltage, VCC = 2.7VI/O PIN SINK CURRENT vs. OUTPUT VOLTAGEVCC = 2.7V35-40 °C3025 °C25IOL (mA)85 °C2015105000.511.522.5VOL (V)3472467M–AVR–11/04Pin Thresholds andHysteresisFigure 185. I/O Pin Input Threshold Voltage vs. VCC (VIH, I/O Pin Read as ‘1’)I/O PIN INPUT THRESHOLD VOLTAGE vs.
VCCVIH, IO PIN READ AS '1'2.2-40 °C25 °C85 °C2Threshold (V)1.81.61.41.212.533.544.555.5VCC (V)Figure 186. I/O Pin Input Threshold Voltage vs. VCC (VIH, I/O Pin Read as ‘0’)I/O PIN INPUT THRESHOLD VOLTAGE vs. VCCVIL, IO PIN READ AS '0'1.6-40 °C25 °C85 °C1.5Threshold (V)1.41.31.21.110.90.82.533.544.555.5VCC (V)348ATmega1282467M–AVR–11/04ATmega128Figure 187. I/O Pin Input Hysteresis vs. VCCI/O PIN INPUT HYSTERESIS vs. VCC0.785 °C25 °C-40 °C0.6Input Hysteresis (V)0.50.40.30.20.102.533.544.555.5VCC (V)BOD Thresholds and AnalogComparator OffsetFigure 188. BOD Threshold vs.
Temperature (BODLEVEL is 4.0V)BOD THRESHOLDS vs. TEMPERATUREBOD LEVEL IS 4.0 V4.44.2Threshold (V)Rising VCC4Falling VCC3.83.63.4-60-40-20020406080100Temperature (C)3492467M–AVR–11/04Figure 189. BOD Threshold vs. Temperature (BODLEVEL is 2.7V)BOD THRESHOLDS vs. TEMPERATUREBOD LEVEL IS 2.7 V32.8Threshold (V)Rising VCC2.6Falling VCC2.42.22-60-40-20020406080100Temperature (C)Figure 190. Bandgap Voltage vs.
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