ATMEGA1284P-AU Atmel, ATMEGA1284P-AU Datasheet - Page 299

• Manufacturer Part Number: ATMEGA1284P-AU
• Description: MCU AVR 128K ISP FLASH 44-TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA1284P-AU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 128KB (64K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Processor Series: ATMEGA128x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 16 KB
• Interface Type: 2-Wire, SPI, USART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATAVRRAVEN, ATAVRRZUSBSTICK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Package: 44TQFP
• Device Core: AVR
• Family Name: ATmega
• Maximum Speed: 20 MHz
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Rom Size: 4 KB
• Height: 1.05 mm
• Length: 10.1 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.8 V
• Width: 10.1 mm
• Controller Family/series: AVR MEGA
• No. Of I/o's: 32
• Eeprom Memory Size: 4KB
• Ram Memory Size: 16KB
• Cpu Speed: 20MHz
• Rohs Compliant: Yes
• For Use With: ATSTK600-TQFP44 - STK600 SOCKET/ADAPTER 44-TQFPATSTK600 - DEV KIT FOR AVR/AVR32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 26-8.
26.6
26.6.1
8272A–AVR–01/10
ATmega164A/ATmega164PA
ATmega324A/ATmega324PA
ATmega644A/ATmega644PA
ATmega1284/ATmega1284P
Parallel Programming Parameters, Pin Mapping, and Commands
Signal Names
Device
No. of Words in a Page and No. of Pages in the EEPROM
This section describes how to parallel program and verify Flash Program memory, EEPROM
D a t a m e m o r y , M e m o r y L o c k b i t s , a n d F u s e b i t s i n
the ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P. Pulses are assumed to be at
least 250 ns unless otherwise noted.
In this section, some pins of the ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P
are referenced by signal names describing their functionality during parallel programming, see
Figure 26-1 on page 299
are referenced by pin names.
The XA1/XA0 pins determine the action executed when the XTAL1 pin is given a positive pulse.
The bit coding is shown in
When pulsing WR or OE, the command loaded determines the action executed. The different
commands are shown in
Figure 26-1. Parallel Programming
Note:
164A/164PA/324A/324PA/644A/644PA/1284/1284P
1. Unused Pins should be left floating.
EEPROM Size
512 bytes
1 Kbytes
2 Kbytes
4 Kbytes
Table 26-13 on page
RDY/BSY
and
Table 26-12 on page
PAGEL
+12 V
BS2
BS1
XA0
XA1
WR
OE
Page Size
Figure 26-9 on page
4 bytes
4 bytes
8 bytes
8 bytes
(1)
PD1
PD2
PD3
PD4
PD5
PD6
PD7
RESET
XTAL1
GND
PA0
PCWORD
EEA[1:0]
EEA[1:0]
EEA[2:0]
EEA[2:0]
301.
300.
300. Pins not described in the following table
PB7 - PB0
AVCC
VCC
No. of Pages
128
256
256
512
+5V
+5V
DATA
EEA[10:2]
EEA[11:3]
PCPAGE
EEA[8:2]
EEA[9:2]
EEAMSB
10
11
8
9
299