ATMEGA32A_1 Datasheet, PDF (297/352 Pages) ATMEL Corporation – 8-bit Microcontroller with 32K Bytes In-System Programmable Flash

ATmega32A
T_A = -40°C to 85°C, V_CC = 2.7V to 5.5V (Unless Otherwise Noted)
Symbol Parameter
Condition
Min
Typ
Max
Units
Active 1 MHz, V_CC = 3V
0.6
mA
Active 4 MHz, V_CC = 3V
2.1
5
mA
Power Supply Current
Active 8 MHz, V_CC = 5V
I_CC
Idle 1 MHz, V_CC = 3V
Idle 4 MHz, V_CC = 3V
7.5
15
mA
0.2
mA
0.6
2.5
mA
Idle 8 MHz, V_CC = 5V
2.8
8
mA
Power-down Mode⁽⁵⁾
WDT enabled, V_CC = 3V
WDT disabled, V_CC = 3V
< 10
20
µA
<1
10
µA
V_ACIO
Analog Comparator
Input Offset Voltage
V_CC = 5V
V_in = V_CC/2
40
mV
I_ACLK
Analog Comparator
Input Leakage Current
V_CC = 5V
V_in = V_CC/2
-50
50
nA
t_ACPD
Analog Comparator
Propagation Delay
V_CC = 2.7V
V_CC = 4.0V
750
500
ns
Notes: 1. “Max” means the highest value where the pin is guaranteed to be read as low
2. “Min” means the lowest value where the pin is guaranteed to be read as high
3. Although each I/O port can sink more than the test conditions (20 mA at Vcc = 5V, 10 mA at Vcc = 3V) under steady state
conditions (non-transient), the following must be observed:
PDIP Package:
1] The sum of all IOL, for all ports, should not exceed 200 mA.
2] The sum of all IOL, for port A0 - A7, should not exceed 100 mA.
3] The sum of all IOL, for ports B0 - B7,C0 - C7, D0 - D7 and XTAL2, should not exceed 100 mA.
TQFP and QFN/MLF Package:
1] The sum of all IOL, for all ports, should not exceed 400 mA.
2] The sum of all IOL, for ports A0 - A7, should not exceed 100 mA.
3] The sum of all IOL, for ports B0 - B4, should not exceed 100 mA.
4] The sum of all IOL, for ports B3 - B7, XTAL2, D0 - D2, should not exceed 100 mA.
5] The sum of all IOL, for ports D3 - D7, should not exceed 100 mA.
6] The sum of all IOL, for ports C0 - C7, should not exceed 100 mA.
If IOL exceeds the test condition, VOL may exceed the related specification. Pins are not guaranteed to sink current greater
than the listed test condition.
4. Although each I/O port can source more than the test conditions (20 mA at Vcc = 5V, 10 mA at Vcc = 3V) under steady state
conditions (non-transient), the following must be observed:
PDIP Package:
1] The sum of all IOH, for all ports, should not exceed 200 mA.
2] The sum of all IOH, for port A0 - A7, should not exceed 100 mA.
3] The sum of all IOH, for ports B0 - B7,C0 - C7, D0 - D7 and XTAL2, should not exceed 100 mA.
TQFP and QFN/MLF Package:
1] The sum of all IOH, for all ports, should not exceed 400 mA.
2] The sum of all IOH, for ports A0 - A7, should not exceed 100 mA.
3] The sum of all IOH, for ports B0 - B4, should not exceed 100 mA.
4] The sum of all IOH, for ports B3 - B7, XTAL2, D0 - D2, should not exceed 100 mA.
5] The sum of all IOH, for ports D3 - D7, should not exceed 100 mA.
6] The sum of all IOH, for ports C0 - C7, should not exceed 100 mA.If IOH exceeds the test condition, VOH may exceed the
related specification. Pins are not guaranteed to source current greater than the listed test condition.
5. Minimum V_CC for Power-down is 2.5V.
8155B–AVR–07/09
297