ATMEGA1284-AU Atmel, ATMEGA1284-AU Datasheet - Page 308
ATMEGA1284-AU
Manufacturer Part Number
ATMEGA1284-AU
Description
IC MCU AVR 128K FLASH 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA1284-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
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA1284-AU
Manufacturer:
ATMEL
Quantity:
1 200
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26.7.15
8272A–AVR–01/10
Parallel Programming Characteristics
Table 26-14. Parallel Programming Characteristics, V
Notes:
164A/164PA/324A/324PA/644A/644PA/1284/1284P
Symbol
V
I
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
PP
DVXH
XLXH
XHXL
XLDX
XLWL
XLPH
PLXH
BVPH
PHPL
PLBX
WLBX
PLWL
BVWL
WLWH
WLRL
WLRH
WLRH_CE
XLOL
BVDV
OLDV
OHDZ
PP
1. t
2. t
commands.
WLRH
WLRH_CE
Parameter
Programming Enable Voltage
Programming Enable Current
Data and Control Valid before XTAL1 High
XTAL1 Low to XTAL1 High
XTAL1 Pulse Width High
Data and Control Hold after XTAL1 Low
XTAL1 Low to WR Low
XTAL1 Low to PAGEL high
PAGEL low to XTAL1 high
BS1 Valid before PAGEL High
PAGEL Pulse Width High
BS1 Hold after PAGEL Low
BS2/1 Hold after WR Low
PAGEL Low to WR Low
BS2/1 Valid to WR Low
WR Pulse Width Low
WR Low to RDY/BSY Low
WR Low to RDY/BSY High
WR Low to RDY/BSY High for Chip Erase
XTAL1 Low to OE Low
BS1 Valid to DATA valid
OE Low to DATA Valid
OE High to DATA Tri-stated
is valid for the Write Flash, Write EEPROM, Write Fuse bits and Write Lock bits
is valid for the Chip Erase command.
(1)
(2)
CC
= 5V ± 10%
11.5
Min
200
150
150
150
150
3.7
7.5
67
67
67
67
67
67
67
0
0
0
0
0
Typ
Max
12.5
250
250
250
250
4.5
1
9
Units
ms
ms
μA
ns
μs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
V
308
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