ATmega48PA Atmel Corporation, ATmega48PA Datasheet - Page 307

no-image

ATmega48PA

Manufacturer Part Number
ATmega48PA
Description
Manufacturer
Atmel Corporation
Datasheets

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

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATmega48PA-15AZ
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
ATmega48PA-15MT
Manufacturer:
ATMEL
Quantity:
110
Part Number:
ATmega48PA-15MZ
Manufacturer:
ATMEL
Quantity:
3 500
Part Number:
ATmega48PA-AN
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
ATmega48PA-ANR
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
ATmega48PA-AU
Manufacturer:
MICRON
Quantity:
1 000
Part Number:
ATmega48PA-AU
Manufacturer:
Atmel
Quantity:
900
Part Number:
ATmega48PA-AU
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
ATmega48PA-AU
Manufacturer:
ATMEL
Quantity:
8 000
Part Number:
ATmega48PA-AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
ATmega48PA-AU
Quantity:
60 000
Part Number:
ATmega48PA-AUR
Manufacturer:
ATMEL
Quantity:
723
Part Number:
ATmega48PA-MMH
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Part Number:
ATmega48PA-MMHR
Manufacturer:
ATMEL
Quantity:
20 000
8271D–AVR–05/11
While the lower bits in the address are mapped to words within the page, the higher bits address
the pages within the FLASH. This is illustrated in
eight bits are required to address words in the page (pagesize < 256), the most significant bit(s)
in the address low byte are used to address the page when performing a Page Write.
G. Load Address High byte
1. Set XA1, XA0 to “00”. This enables address loading.
2. Set BS1 to “1”. This selects high address.
3. Set DATA = Address high byte (0x00 - 0xFF).
4. Give XTAL1 a positive pulse. This loads the address high byte.
H. Program Page
1. Give WR a negative pulse. This starts programming of the entire page of data. RDY/BSY
2. Wait until RDY/BSY goes high (See
I. Repeat B through H until the entire Flash is programmed or until all data has been
programmed.
J. End Page Programming
1. 1. Set XA1, XA0 to “10”. This enables command loading.
2. Set DATA to “0000 0000”. This is the command for No Operation.
3. Give XTAL1 a positive pulse. This loads the command, and the internal write signals are
Figure 28-2. Addressing the Flash Which is Organized in Pages
Note:
goes low.
reset.
1. PCPAGE and PCWORD are listed in
PROGRAM MEMORY
PROGRAM
COUNTER
PAGE
PAGE ADDRESS
WITHIN THE FLASH
ATmega48A/PA/88A/PA/168A/PA/328/P
PCMSB
PCPAGE
Figure 28-3
PAGEMSB
PCWORD
Table 28-11 on page
WORD ADDRESS
WITHIN A PAGE
Figure 28-2 on page
for signal waveforms).
INSTRUCTION WORD
PAGE
302.
(1)
307. Note that if less than
PCWORD[PAGEMSB:0]:
00
01
02
PAGEEND
307

Related parts for ATmega48PA