ATA6616-P3QW Atmel, ATA6616-P3QW Datasheet - Page 252

• Manufacturer Part Number: ATA6616-P3QW
• Description: TXRX MULTICHIP MOD LIN SIP 38QFN
• Manufacturer: Atmel
• Series: AVR® ATA66 LIN-SBCr

Specifications of ATA6616-P3QW

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, LIN, SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 16
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 38-VQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4.22.2.1
4.22.3
4.22.4
252
Atmel ATA6616/ATA6617
Signature Bytes
Calibration Byte
Latching of Fuses
Table 4-71.
The fuse values are latched when the device enters programming mode and changes of the
fuse values will have no effect until the part leaves Programming mode. This does not apply to
the EESAVE Fuse which will take effect once it is programmed. The fuses are also latched on
Power-up in Normal mode.
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 4-72.
The Atmel
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 cali-
brated RC Oscillator.
CKDIV8
CKOUT
SUT1
SUT0
CKSEL3
CKSEL2
CKSEL1
CKSEL0
Notes:
Fuse Low Byte
ATtiny167
Device
(3)
(4)
1. The default value of SUT1..0 results in maximum start-up time for the default clock source.
2. The default setting of CKSEL3..0 results in internal RC Oscillator @ 8 MHz. See
3. The CKOUT Fuse allows the system clock to be output on PORTB5. See
4. See
®
See
on page 51
“Clock Output Buffer” on page 55
ATtiny87/167 has a byte calibration value for the internal RC Oscillator. This byte
Fuse Low Byte
Signature Bytes
Table 4-8 on page 51
Section 4.5.4 “System Clock Prescaler” on page 61
Bit No
Address
7
6
5
4
3
2
1
0
for details.
0
1
2
Divide clock by 8
Clock output
Select start-up time
Select start-up time
Select Clock source
Select Clock source
Select Clock source
Select Clock source
Value
0x1E
0x94
0x87
for details.
Description
for details.
Signature Byte Description
Indicates manufactured by Atmel
Indicates 16 KB Flash memory
Indicates ATtiny167 device when address 1 contains
0x94
0 (programmed)
1 (unprogrammed)
1 (unprogrammed)
0 (programmed)
0 (programmed)
0 (programmed)
1 (unprogrammed)
0 (programmed)
for details.
Default Value
(1)
(2)
(2)
(2)
(1)
(2)
Section 4.5.2.7
9132D–AUTO–12/10
Table 4-7