AT90CAN32 Atmel Corporation, AT90CAN32 Datasheet - Page 19
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AT90CAN32
Manufacturer Part Number
AT90CAN32
Description
Manufacturer
Atmel Corporation
Specifications of AT90CAN32
Flash (kbytes)
32 Kbytes
Pin Count
64
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
53
Ext Interrupts
8
Usb Speed
No
Usb Interface
No
Spi
1
Twi (i2c)
1
Uart
2
Can
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
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
4
Output Compare Channels
8
Input Capture Channels
2
Pwm Channels
7
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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Company
Part Number
Manufacturer
Quantity
Price
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ATMEL
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Part Number:
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Manufacturer:
MICROCHIP/微芯
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20 000
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4.2
7679H–CAN–08/08
SRAM Data Memory
Constant tables can be allocated within the entire program memory address space (see the
LPM – Load Program Memory and ELPM – Extended Load Program Memory instruction
description).
Timing diagrams for instruction fetch and execution are presented in
ing” on page
Figure 4-1.
Figure 4-2
The AT90CAN32/64/128 is a complex microcontroller with more peripheral units than can be
supported within the 64 locations reserved in the Opcode for the IN and OUT instructions. For
the Extended I/O space in SRAM, only the ST/STS/STD and LD/LDS/LDD instructions can be
used.
The lower data memory locations address both the Register File, the I/O memory, Extended I/O
memory, and the internal data SRAM. The first 32 locations address the Register File, the next
64 location the standard I/O memory, then 160 locations of Extended I/O memory, and the next
locations address the internal data SRAM (see “ISRAM size”).
An optional external data SRAM can be used with the AT90CAN32/64/128. This SRAM will
occupy an area in the remaining address locations in the 64K address space. This area starts at
the address following the internal SRAM. The Register file, I/O, Extended I/O and Internal SRAM
occupies the lowest bytes, so when using 64 KB (65,536 bytes) of External Memory,
“XMem size” bytes of External Memory are available. See
27
for details on how to take advantage of the external memory map.
shows how the AT90CAN32/64/128 SRAM Memory is organized.
14.
Program Memory Map
Application Flash Section
Boot Flash Section
Program Memory
“External Memory Interface” on page
AT90CAN32/64/128
0x0000
Flash end
“Instruction Execution Tim-
19
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