AT90CAN32 Automotive Atmel Corporation, AT90CAN32 Automotive Datasheet - Page 338

• Manufacturer Part Number: AT90CAN32 Automotive
• Manufacturer: Atmel Corporation

Specifications of AT90CAN32 Automotive

• 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 125
• 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

25.3
25.4
25.5
25.5.1
338
Signature Bytes
Calibration Byte
Parallel Programming Overview
AT90CAN32/64/128
Signal Names
All Atmel microcontrollers have a three-byte signature code which identifies the device. This
code can be read in both serial and parallel mode, also when the device is locked. The three
bytes reside in a separate address space.
Table 25-6.
The AT90CAN32/64/128 has a byte calibration value for the internal RC Oscillator. This byte
resides in the high byte of address 0x000 in the signature address space. During reset, this byte
is automatically written into the OSCCAL Register to ensure correct frequency of the calibrated
RC Oscillator.
This section describes how to parallel program and verify Flash Program memory, EEPROM
Data memory, Memory Lock bits, and Fuse bits in the AT90CAN32/64/128. Pulses are assumed
to be at least 250 ns unless otherwise noted.
In this section, some pins of the AT90CAN32/64/128 are referenced by signal names describing
their functionality during parallel programming, see
described in the following table 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
Device
AT90CAN32
AT90CAN64
AT90CAN128
Signature Bytes
Address
0
1
2
0
1
2
0
1
2
Table
Table
25-10.
25-9.
Value
0x1E
0x95
0x81
0x1E
0x96
0x81
0x1E
0x97
0x81
Signature Byte Description
Indicates manufactured by Atmel
Indicates 32 KB Flash memory
Indicates AT90CAN32 device when address 1 contains 0x95
Indicates manufactured by Atmel
Indicates 64 KB Flash memory
Indicates AT90CAN64 device when address 1 contains 0x96
Indicates manufactured by Atmel
Indicates 128 KB Flash memory
Indicates AT90CAN128 device when address 1 contains 0x97
Figure 25-1
and
Table
25-7. Pins not
7682C–AUTO–04/08