ATmega48 Automotive Atmel Corporation, ATmega48 Automotive Datasheet - Page 184

• Manufacturer Part Number: ATmega48 Automotive
• Manufacturer: Atmel Corporation

Specifications of ATmega48 Automotive

• Flash (kbytes): 4 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 12
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 23
• Ext Interrupts: 24
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• 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): 0.5
• Eeprom (bytes): 256
• Self Program Memory: NO
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 125
• 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: 6
• Input Capture Channels: 1
• Pwm Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

Table 22-7.
22.6
184
Symbol
V
V
V
REF
DIFF
IN
Serial Programming Characteristics
Atmel ATtiny24/44/84 [Preliminary]
Parameter
Offset Error
Clock Frequency
Conversion Time
Reference Voltage
Input Voltage
Input Differential Voltage
ADC Characteristics, Differential Channels, T
Figure 22-3. Serial Programming Timing
Figure 22-4. Serial Programming Waveforms
SERIAL DATA OUTPUT
SERIAL CLOCK INPUT
SERIAL DATA INPUT
SAMPLE
(MOSI)
(MISO)
(SCK)
MOSI
MISO
SCK
Gain = 1x
V
ADC clock = 50 - 200kHz
Bipolar - Gain = 20x
V
ADC clock = 50 - 200kHz
Unipolar - Gain = 20x
V
ADC clock = 50 - 200kHz
REF
REF
REF
t
OVSH
MSB
MSB
= 4V, V
= 4V, V
= 4V, V
A
= -40°C to 125°C (Continued)
Condition
CC
CC
CC
t
= 5V
= 5V
= 5V
SHSL
t
SHOX
-V
REF
GND
2.56
Min
-5.0
-5.0
-6.5
50
65
/Gain
t
SLSH
Typ
2.0
2.0
2.0
t
SLIV
AVCC - 0.5
V
REF
AVCC
Max
200
260
5.0
5.0
6.5
/Gain
LSB
LSB
7701E–AVR–02/11
Units
LSB
LSB
LSB
kHz
µs
V
V
V