ATtiny2313/V

Figure 99. Power-down Supply Current vs. VCC (Watchdog Timer Enabled)

POWER-DOWN SUPPLY CURRENT vs. Vcc

WATCHDOG TIMER ENABLED

	20								85 °C
	18
									25 °C
	16								-40 °C
	14
(uA)	12
	10
cc
I	8
	6
	4
	2
	0
	1.5	2	2.5	3	3.5	4	4.5	5	5.5
					Vcc (V)

Standby Supply Current

Figure 100. Standby Supply Current vs. VCC

STANDBY SUPPLY CURRENT vs. Vcc

	0.08
	0.07								2MHz Res
									2MHz Xtal
	0.06								455KHz Res
(m A)	0.05								1MHz Res
	0.04
cc
I
	0.03
	0.02
	0.01
	0
	1.5	2	2.5	3	3.5	4	4.5	5	5.5

Vcc (V)

189

2543H–AVR–02/05

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)

190 ATtiny2313/V

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ATtiny2313/V

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)

191

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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)

192 ATtiny2313/V

2543H–AVR–02/05

ATtiny2313/V

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)

193

2543H–AVR–02/05

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)

194 ATtiny2313/V

2543H–AVR–02/05

ATtiny2313/V

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)

195

2543H–AVR–02/05

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)

196 ATtiny2313/V

2543H–AVR–02/05

ATtiny2313/V

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)

197

2543H–AVR–02/05

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)

198 ATtiny2313/V

2543H–AVR–02/05

ATtiny2313/V

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

2543H–AVR–02/05

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)

200 ATtiny2313/V

2543H–AVR–02/05

ATtiny2313/V

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

2543H–AVR–02/05

BOD Thresholds and Analog Figure 125.

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)

202 ATtiny2313/V

2543H–AVR–02/05