ATMEGA168-15AZ Atmel, ATMEGA168-15AZ Datasheet - Page 262
ATMEGA168-15AZ
Manufacturer Part Number
ATMEGA168-15AZ
Description
MCU AVR 16K FLASH 15MHZ 32-TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA168-15AZ.pdf
(340 pages)
Specifications of ATMEGA168-15AZ
Package / Case
32-TQFP, 32-VQFP
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Speed
16MHz
Number Of I /o
23
Eeprom Size
512 x 8
Core Processor
AVR
Program Memory Type
FLASH
Ram Size
1K x 8
Program Memory Size
16KB (16K x 8)
Data Converters
A/D 8x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Connectivity
I²C, SPI, UART/USART
Core Size
8-Bit
Cpu Family
ATmega
Device Core
AVR
Device Core Size
8b
Frequency (max)
16MHz
Interface Type
2-Wire/USART/Serial
Total Internal Ram Size
1KB
# I/os (max)
23
Number Of Timers - General Purpose
3
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
2.7V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 125C
Operating Temperature Classification
Automotive
Mounting
Surface Mount
Pin Count
32
Package Type
TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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ATmega48/88/168 Automotive
Rdloop:
Return:
not ready yet
Do_spm:
Wait_spm:
Wait_ee:
rcall
;
ldi
ldi
subi
sbci
lpm
ld
cpse
rjmp
sbiw
brne
;
;
in
sbrs
ret
;
ldi
rcall
rjmp
;
in
sbrc
rjmp
;
;
in
cli
;
sbic
rjmp
;
out
spm
;
out
ret
read back and check, optional
return to RWW section
verify that RWW section is safe to read
re-enable the RWW section
check for previous SPM complete
input: spmcrval determines SPM action
disable interrupts if enabled, store status
check that no EEPROM write access is present
SPM timed sequence
restore SREG (to enable interrupts if originally enabled)
Do_spm
looplo, low(PAGESIZEB);init loop variable
loophi, high(PAGESIZEB);not required for PAGESIZEB<=256
YL, low(PAGESIZEB)
YH, high(PAGESIZEB)
r0, Z+
r1, Y+
r0, r1
Error
loophi:looplo, 1
Rdloop
temp1, SPMCSR
temp1, RWWSB
spmcrval, (1<<RWWSRE) | (1<<SELFPRGEN)
Do_spm
Return
temp1, SPMCSR
temp1, SELFPRGEN
Wait_spm
temp2, SREG
EECR, EEPE
Wait_ee
SPMCSR, spmcrval
SREG, temp2
;restore pointer
;use subi for PAGESIZEB<=256
; If RWWSB is set, the RWW section is
7530I–AVR–02/10
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