Pin Pull-up	Figure 101. I/O Pin Pull-up Resistor Current vs. Input Voltage (VCC = 5V)

I/O PIN PULL-UP RESISTOR CURRENT vs. INPUT VOLTAGE

160					Vcc = 5V
140
85 °C	25 °C
120
	-40 °C
100
(uA)
80
OP
I
60
40
20
0
0	0.5	1	1.5	2	2.5	3	3.5	4	4.5	5

VOP (V)

Figure 102. I/O Pin Pull-up Resistor Current vs. Input Voltage (VCC = 2.7V)

I/O PIN PULL-UP RESISTOR CURRENT vs. INPUT VOLTAGE

	80			Vcc = 2.7V
85 °C		25 °C
	70
	60	-40 °C
	50
(uA)	40
OP
I
	30
	20
	10
	0
	0	0.5	1	1.5	2	2.5	3

VOP (V)

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Figure 103. Reset Pull-up Resistor Current vs. Reset Pin Voltage (VCC = 5V)

RESET PULL-UP RESISTOR CURRENT vs. RESET PIN VOLTAGE

	120					Vcc = 5V
-40 °C		25 °C
	100
	80	85 °C
(uA)	60
RESET
I
	40
	20
	0
	0	0.5	1	1.5	2	2.5	3	3.5	4	4.5	5

VRESET(V)

Figure 104. Reset Pull-up Resistor Current vs. Reset Pin Voltage (VCC = 2.7V)

RESET PULL-UP RESISTOR CURRENT vs. RESET PIN VOLTAGE

	60			Vcc = 2.7V
-40 °C		25 °C
	50
		85 °C
	40
(uA)	30
RESET
I
	20
	10
	0
	0	0.5	1	1.5	2	2.5	3
				VRESET (V)

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Pin Driver Strength	Figure 105. I/O Pin Source Current vs. Output Voltage (VCC = 5V)

I/O PIN SOURCE CURRENT vs. OUTPUT VOLTAGE

							Vcc = 5V
	90
	80
	70	85 °C
	60	-40 °C
(mA)		25 °C
	50
OH	40
I
	30
	20
	10
	0
		3	3.2	3.4	3.6	3.8	4	4.2	4.4	4.6	4.8	5

VOH (V)

Figure 106. I/O Pin Source Current vs. Output Voltage (VCC = 2.7V)

I/O PIN SOURCE CURRENT vs. OUTPUT VOLTAGE

	35				Vcc = 2.7V
	30	-40 °C
	25	25 °C
		85 °C
(mA)	20
OH	15
I
	10
	5
	0
		0.5	1	1.5	2	2.5	3

VOH (V)

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Figure 107. I/O Pin Source Current vs. Output Voltage (VCC = 1.8V)

I/O PIN SOURCE CURRENT vs. OUTPUT VOLTAGE

	9					Vcc = 1.8V
		-40 °C
25 °C 8		85 °C
	7
	6
(mA)	5
OH	4
I
	3
	2
	1
	0
	0	0.2	0.4	0.6	0.8	1	1.2	1.4	1.6	1.8	2

VOH (V)

Figure 108. I/O Pin Sink Current vs. Output Voltage (VCC = 5V)

I/O PIN SINK CURRENT vs. OUTPUT VOLTAGE

	100					Vcc = 5V
	90										-40 °C
	80										25 °C
	70
	60										85 °C
(mA)
	50
OL
I	40
	30
	20
	10
	0
	0	0.2	0.4	0.6	0.8	1	1.2	1.4	1.6	1.8	2

VOL (V)

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Figure 109. I/O Pin Sink Current vs. Output Voltage (VCC = 2.7V)

I/O PIN SINK CURRENT vs. OUTPUT VOLTAGE

	40					Vcc = 2.7V
	35										-40 °C
	30										25 °C
	25										85 °C
(mA)
	20
OL
I
	15
	10
	5
	0
	0	0.2	0.4	0.6	0.8	1	1.2	1.4	1.6	1.8	2

VOL (V)

Figure 110. I/O Pin Sink Current vs. Output Voltage (VCC = 1.8V)

I/O PIN SINK CURRENT vs. OUTPUT VOLTAGE

	14					Vcc = 1.8V
	12									-40 °C
	10									25 °C
(mA)	8									85 °C
OL	6
I
	4
	2
	0
	0	0.2	0.4	0.6	0.8	1	1.2	1.4	1.6	1.8

VOL (V)

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Figure 111. Reset I/O Pin Source Current vs. Output Voltage (VCC = 5V)

RESET I/O PIN SOURCE CURRENT vs. OUTPUT VOLTAGE

	16					Vcc = 5V
	14	-40 °C
	12
25 °C
(mA)	10
	8
Current		85 °C
	6
	4
	2
	0
	0	0.5	1	1.5	2	2.5	3	3.5	4	4.5	5

VOH (V)

Figure 112. Reset I/O Pin Source Current vs. Output Voltage (VCC = 2.7V)

RESET I/O PIN SOURCE CURRENT vs. OUTPUT VOLTAGE

	4.5			Vcc = 2.7V
	4
	-40 °C
	3.5
25 °C
(m A)	3
	2.5
Current	85 °C
	2
	1.5
	1
	0.5
	0
	0	0.5	1	1.5	2	2.5	3

VOH (V)

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Figure 113. Reset I/O Pin Source Current vs. Output Voltage (VCC = 1.8V)

RESET I/O PIN SOURCE CURRENT vs. OUTPUT VOLTAGE

	1.4					Vcc = 1.8V
		-40 °C
	1.2
	25 °C
	1
(mA)	0.8
Current		85 °C
	0.6
	0.4
	0.2
	0
	0	0.2	0.4	0.6	0.8	1	1.2	1.4	1.6	1.8	2

VOH (V)

Figure 114. Reset I/O Pin Sink Current vs. Output Voltage (VCC = 5V)

RESET I/O PIN SINK CURRENT vs. OUTPUT VOLTAGE

	16					Vcc = 5V
	14										-40 °C
	12										25 °C
(mA)	10										85 °C
	8
Current
	6
	4
	2
	0
	0	0.5	1	1.5	2	2.5	3	3.5	4	4.5	5

VOL (V)

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Figure 115. Reset I/O Pin Sink Current vs. Output Voltage (VCC = 2.7V)

RESET I/O PIN SINK CURRENT vs. OUTPUT VOLTAGE

	4.5					Vcc = 2.7V
	4										-40 °C
	3.5										25 °C
	3										85 °C
(mA)	2.5
Current	2
	1.5
	1
	0.5
	0
	0	0.5	1	1.5	2	2.5	3	3.5	4	4.5	5

VOL (V)

Figure 116. Reset I/O Pin Sink Current vs. Output Voltage (VCC = 1.8V)

RESET I/O PIN SINK CURRENT vs. OUTPUT VOLTAGE

	1.4				Vcc = 1.8V
										-40 °C
	1.2									25 °C
	1									85 °C
(mA)	0.8
Current	0.6
	0.4
	0.2
	0
	0	0.2	0.4	0.6	0.8	1	1.2	1.4	1.6	1.8

VOL (V)

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Pin Thresholds and

Hysteresis

Figure 117. I/O Pin Input Threshold Voltage vs. VCC (VIH, I/O Pin Read as “1”) cc

VIH, IO PIN READ AS '1'

	3
									85 °C
									-40 °C
	2.5								25 °C
	2
(V)
Threshold	1.5
	1
	0.5
	0
	1.5	2	2.5	3	3.5	4	4.5	5	5.5
					VCC (V)

Figure 118. I/O Pin Input Threshold Voltage vs. VCC (VIL, I/O Pin Read as “0”)

I/O PIN INPUT THRESHOLD VOLTAGE vs. Vcc

VIL, IO PIN READ AS '0'

	3
									85 °C
	2.5								25 °C
									-40 °C
	2
(V)
Threshold	1.5
	1
	0.5
	0
	1.5	2	2.5	3	3.5	4	4.5	5	5.5
					VCC (V)

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Figure 119. Reset I/O Input Threshold Voltage vs. VCC (VIH,Reset Pin Read as “1”)

RESET I/O PIN INPUT THRESHOLD VOLTAGE vs. Vcc

VIH, IO PIN READ AS '1'

	3								85 °C
									25 °C
									-40 °C
	2.5
	2
(V)
Threshold	1.5
	1
	0.5
	0
	1.5	2	2.5	3	3.5	4	4.5	5	5.5
					Vcc (V)

Figure 120. Reset I/O Input Threshold Voltage vs. VCC (VIL,Reset Pin Read as “0”)

RESET I/O PIN INPUT THRESHOLD VOLTAGE vs. Vcc

VIL, IO PIN READ AS '0'

	2.5								85°C
									25°C
									-40°C
	2
(V)	1.5
Threshold	1
	0.5
	0
	1.5	2	2.5	3	3.5	4	4.5	5	5.5
					Vcc (V)

199

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Figure 121. Reset I/O Input Pin Hysteresis vs. VCC

RESET I/O INPUT PIN HYSTERESIS vs. Vcc

	1
	0.9
	0.8
(V)	-40 °C
	0.7
Hysteresis	0.6
	25 °C
	0.5
Input	85 °C
	0.4
	0.3
	0.2
	0.1
	0
	1.5	2	2.5	3	3.5	4	4.5	5	5.5

VCC (V)

Figure 122. Reset Input Threshold Voltage vs. VCC (VIH,Reset Pin Read as “1”)

RESET INPUT THRESHOLD VOLTAGE vs. Vcc

VIH, IO PIN READ AS '1'

	2.5
	2
(V)	1.5
	-40 °C
Threshold
	25 °C
	85 °C
	1
	0.5
	0
	1.5	2	2.5	3	3.5	4	4.5	5	5.5
					VCC (V)

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Figure 123. Reset Input Threshold Voltage vs. VCC (VIL,Reset Pin Read as “0”)

RESET INPUT THRESHOLD VOLTAGE vs. Vcc

VIL, IO PIN READ AS '0'

	2.5
	2
(V)	1.5
Threshold	1
	85 °C
	25 °C
	-40 °C
	0.5
	0
	1.5	2	2.5	3	3.5	4	4.5	5	5.5
					Vcc (V)

Figure 124. Reset Input Pin Hysteresis vs. VCC

RESET INPUT PIN HYSTERESIS vs. Vcc

	0.7
	0.6	-40 °C
(V)	0.5	25 °C
Hysteresis	0.4
	0.3	85 °C
Input	0.2
	0.1
	0
		1.5	2	2.5	3	3.5	4	4.5	5	5.5

Vcc (V)

201

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BOD Thresholds and	Figure 125.
Analog Comparator
Offset
		4.45
		4.4
	hol d (V )	4.35
	Thres
		4.3
		4.25
		-40

BOD Thresholds vs. Temperature (BOD Level is 4.3V)

BOD THRESHOLDS vs. TEMPERATURE

BODLEVEL IS 4.3V

Rising Vcc

Falling Vcc

-30	-20	-10	0	10	20	30	40	50	60	70	80	90
					Temperature (C)

Figure 126. BOD Thresholds vs. Temperature (BOD Level is 2.7V)

Threshold (V)

BOD THRESHOLDS vs. TEMPERATURE

BODLEVEL IS 2.7V

2.85

Rising Vcc

2.8

2.75

Falling Vcc

2.7

2.65
-40			-30	-20	-10	0	10	20	30	40	50	60	70	80	90
								Temperature (C)

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Figure 127. BOD Thresholds vs. Temperature (BOD Level is 1.8V)

Threshold (V)

BOD THRESHOLDS vs. TEMPERATURE

BODLEVEL IS 1.8V

1.88

1.86

Rising Vcc

1.84

1.82 Falling Vcc

1.8

1.78
-40			-30	-20	-10	0	10	20	30	40	50	60	70	80	90
								Temperature (C)

Internal Oscillator	Figure 128. Watchdog Oscillator Frequency vs. VCC
Speed	WATCHDOG OSCILLATOR FREQUENCY vs. VCC

	0.104
	0.103
	0.102
	0.101								-40 °C
Hz)	0.1								25 °C
(M
RC	0.099
F
	0.098
	0.097
	0.096								85 °C
	0.095
	1.5	2	2.5	3	3.5	4	4.5	5	5.5

VCC (V)

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Figure 129. Watchdog Oscillator Frequency vs. Temperature

WATCHDOG OSCILLATOR FREQUENCY vs. TEMPERATURE

	0.105
	0.104
	0.103
	0.102
(MHz)	0.101
RC	0.1													1.8 V
F
	0.099
	0.098													2.7 V
														3.3 V
	0.097													4.0 V
														5.5 V
	0.096													5.0 V
														4.5 V
	-40	-30	-20	-10	0	10	20	30	40	50	60	70	80	90

Temperature (°C)

Figure 130. Calibrated 8 MHz RC Oscillator Frequency vs. Temperature

CALIBRATED 8MHz RC OSCILLATOR FREQUENCY vs. TEMPERATURE

	8.4
														5.5 V
	8.3													5.0 V
														4.5 V
														4.0 V
	8.2													3.3 V
														2.7 V
														1.8 V
)	8.1
(MHz
RC	8
F
	7.9
	7.8
	7.7
	-40	-30	-20	-10	0	10	20	30	40	50	60	70	80	90

Temperature (°C)

204 ATtiny2313

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Figure 131. Calibrated 8 MHz RC Oscillator Frequency vs. VCC

CALIBRATED 8MHz RC OSCILLATOR FREQUENCY vs. Vcc

FRC (MHz)

8.4
8.3	85 °C
8.2
8.1	25 °C
8
7.9	-40 °C
7.8
7.7

1.5	2	2.5	3	3.5	4	4.5	5	5.5
				VCC (V)

Figure 132. Calibrated 8 MHz RC Oscillator Frequency vs. Osccal Value

CALIBRATED 8MHz RC OSCILLATOR FREQUENCY vs. OSCCAL VALUE

	14
	12								25 °C
	10
(MHz)	8
RC	6
F
	4
	2
	0
	0	16	32	48	64	80	96	112	128

OSCCAL VALUE

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Figure 133. Calibrated 4 MHz RC Oscillator Frequency vs. Temperature

CALIBRATED 4MHz RC OSCILLATOR FREQUENCY vs. TEMPERATURE

	4.2
	4.15													5.5 V
														5.0 V
														3.3 V
	4.1													1.8 V
(MHz)	4.05
RC
F
	4
	3.95
	3.9
	-40	-30	-20	-10	0	10	20	30	40	50	60	70	80	90

Temperature (°C)

Figure 134. Calibrated 4 MHz RC Oscillator Frequency vs. VCC

			CALIBRATED 4MHz RC OSCILLATOR FREQUENCY vs. Vcc
	4.2
	4.15								85 °C
	4.1
(MHz)	4.05
RC									25 °C
F
	4
									-40 °C
	3.95
	3.9
	1.5	2	2.5	3	3.5	4	4.5	5	5.5
					VCC (V)

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Figure 135. Calibrated 4 MHz RC Oscillator Frequency vs. Osccal Value

CALIBRATED 4MHz RC OSCILLATOR FREQUENCY vs. OSCCAL VALUE

	7																25 °C
	6
	5
)	4
(MHz
RC	3
F
	2
	1
	0
	0	8	16	24	32	40	48	56	64	72	80	88	96	104	112	120	128

OSCCAL VALUE

Current Consumption Figure 136. Brownout Detector Current vs. VCC of Peripheral Units

BROWNOUT DETECTOR CURRENT vs. Vcc

	30
	25								-40 °C
									85 °C
									25 °C
	20
(uA)	15
cc
I
	10
	5
	0
	1.5	2	2.5	3	3.5	4	4.5	5	5.5

Vcc (V)

207

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Figure 137. Analog Comparator Current vs. VCC

ANALOG COMPARATOR CURRENT vs. Vcc

	70
	60								-40 °C
	50								25 °C
									85 °C
(uA)	40
cc	30
I
	20
	10
	0
	1.5	2	2.5	3	3.5	4	4.5	5	5.5

Vcc (V)

Figure 138. Programming Current vs. VCC

PROGRAMMING CURRENT vs. Vcc

	4.5
	4
	3.5			-40 °C
	3
(mA)	2.5
				25 °C
cc	2
I
	1.5
	1			85 °C
	0.5
	0
	1.5	2	2.5	3	3.5	4	4.5	5	5.5

Vcc (V)

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Current Consumption	Figure 139. Reset Supply Current vs. VCC (0.1 - 1.0 MHz, Excluding Current Through The
in Reset and Reset	Reset Pull-up)
Pulsewidth	RESET SUPPLY CURRENT vs. Vcc
	0.1 - 1.0 MHz, EXCLUDING CURRENT THROUGH THE RESET PULLUP

	0.14										5.5 V
	0.12										5.0 V
	0.1										4.5 V
(mA)	0.08										4.0 V
											3.3 V
cc	0.06
I
											2.7 V
	0.04										1.8 V
	0.02
	0
	0	0.1	0.2	0.3	0.4	0.5	0.6	0.7	0.8	0.9	1
					Frequency (MHz)

Figure 140. Reset Supply Current vs. VCC (1 - 20 MHz, Excluding Current Through The Reset

Pull-up)

RESET SUPPLY CURRENT vs. Vcc

1 - 20 MHz, EXCLUDING CURRENT THROUGH THE RESET PULLUP

	2.5										5.5 V
	2										5.0 V
											4.5 V
(mA)	1.5										4.0 V
											3.3 V
cc
I	1
											2.7 V
	0.5
	0
	0	2	4	6	8	10	12	14	16	18	20
						Frequency (MHz)

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Figure 141. Minimum Reset Pulse Width vs. VCC

MINIMUM RESET PULSE WIDTH vs. Vcc

	2500
	2000
(ns)	1500
Pulsewidth	1000
	500								85 °C
									25 °C
									-40 °C
	0
	1.5	2	2.5	3	3.5	4	4.5	5	5.5

Vcc (V)

210 ATtiny2313

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