ATmega48PA Atmel Corporation, ATmega48PA Datasheet - Page 331

• Manufacturer Part Number: ATmega48PA
• Manufacturer: Atmel Corporation

Specifications of ATmega48PA

• Flash (kbytes): 4 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 20 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: Yes
• Crypto Engine: No
• Sram (kbytes): 0.5
• Eeprom (bytes): 256
• Self Program Memory: NO
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 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

8271D–AVR–05/11
Figure 29-6. Parallel Programming Timing, Including some General Timing Requirements
Figure 29-7. Parallel Programming Timing, Loading Sequence with Timing Requirements
Note:
Figure 29-8. Parallel Programming Timing, Reading Sequence (within the Same Page) with
Note:
XTAL1
DATA
(DATA, XA0/1, BS1, BS2)
BS1
XA0
XA1
OE
PAGEL
XTAL1
1. The timing requirements shown in
1. The timing requirements shown in
DATA
BS1
XA0
XA1
ing operation.
ing operation.
Data & Contol
Timing Requirements
RDY/BSY
ADDR0 (Low Byte)
LOAD ADDRESS
PAGEL
(LOW BYTE)
XTAL1
ADDR0 (Low Byte)
LOAD ADDRESS
ATmega48A/PA/88A/PA/168A/PA/328/P
(LOW BYTE)
WR
t
XLOL
t
OLDV
t
t
BVPH
DVXH
(1)
(LOW BYTE)
LOAD DATA
DATA (Low Byte)
t
t
XHXL
PHPL
DATA (Low Byte)
READ DATA
(LOW BYTE)
Figure 29-6
Figure 29-6
t
t
t
t
t
XLXH
XLDX
XLWL
PLBX
PLWL
t
BVDV
(i.e., t
(i.e., t
t
(HIGH BYTE)
BVWL
LOAD DATA
DATA (High Byte)
DVXH
DVXH
(HIGH BYTE)
READ DATA
t
t
DATA (High Byte)
XLPH
WLWH
WLRL
LOAD DATA
, t
, t
XHXL
XHXL
, and t
, and t
t
PLXH
t
OHDZ
t
WLBX
XLDX
XLDX
LOAD ADDRESS
LOAD ADDRESS
(LOW BYTE)
(LOW BYTE)
ADDR1 (Low Byte)
) also apply to read-
) also apply to load-
ADDR1 (Low Byte)
t
WLRH
(1)
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