ATmega32A Atmel Corporation, ATmega32A Datasheet - Page 299

• Manufacturer Part Number: ATmega32A
• Manufacturer: Atmel Corporation

Specifications of ATmega32A

• Flash (kbytes): 32 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 32
• Ext Interrupts: 3
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 2
• Eeprom (bytes): 1024
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

27.3
27.4
27.4.1
27.4.2
8155C–AVR–02/11
Speed Grades
Clock Characteristics
External Clock Drive Waveforms
External Clock Drive
Figure 27-1. Maximum Frequency vs. V
Figure 27-2. External Clock Drive Waveforms
Figure 27-3. External Clock Drive
Symbol
1/t
t
t
t
CLCL
CHCX
CLCX
CLCL
16 MHz
Parameter
Oscillator Frequency
Clock Period
High Time
Low Time
V
8 MHz
IL1
V
IH1
2.7V
V
CC
Safe Operating Area
Min
125
CC
50
50
0
.
= 2.7V to
Max
5.5
8
4.5V
V
V
62.5
Min
CC
25
25
0
= 4.5V to
5.5V
ATmega32A
Max
5.5
16
V
Units
MHz
ns
ns
ns
299