ATmega3250 Atmel Corporation, ATmega3250 Datasheet - Page 279
ATmega3250
Manufacturer Part Number
ATmega3250
Description
Manufacturer
Atmel Corporation
Specifications of ATmega3250
Flash (kbytes)
32 Kbytes
Pin Count
100
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
69
Ext Interrupts
25
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)
2
Eeprom (bytes)
1024
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
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
4
Input Capture Channels
1
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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Manufacturer:
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Part Number:
ATmega3250V-8AU
Manufacturer:
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Quantity:
20 000
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2570N–AVR–05/11
Figure 27-9. Parallel Programming Timing, Reading Sequence (within the Same Page) with
Note:
Table 27-12. Parallel Programming Characteristics, V
Symbol
V
I
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
PP
XTAL1
DATA
BS1
XA0
XA1
OE
1. The timing requirements shown in
ing operation.
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
BS1 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
Timing Requirements
ADDR0 (Low Byte)
LOAD ADDRESS
(LOW BYTE)
t
XLOL
t
OLDV
(1)
(1)
DATA (Low Byte)
READ DATA
(LOW BYTE)
Figure 27-7
ATmega325/3250/645/6450
(2)
t
BVDV
(i.e., t
CC
= 5V ± 10%
DVXH
(HIGH BYTE)
11.5
Min
READ DATA
200
150
150
150
150
3.7
7.5
67
67
67
67
67
67
67
DATA (High Byte)
0
0
0
0
, t
XHXL
Typ
, and t
t
OHDZ
Max
12.5
250
XLDX
4.5
1
9
LOAD ADDRESS
(LOW BYTE)
) also apply to read-
ADDR1 (Low Byte)
Units
μA
ms
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
μs
ns
V
279
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