ATMEGA169P-16AU Atmel, ATMEGA169P-16AU Datasheet - Page 13
![IC AVR MCU 16K 16MHZ IND 64-TQFP](/photos/12/13/121332/313-64-tqfp_sml.jpg)
ATMEGA169P-16AU
Manufacturer Part Number
ATMEGA169P-16AU
Description
IC AVR MCU 16K 16MHZ IND 64-TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA169P-16AU
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
54
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
Processor Series
ATMEGA16x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
SPI/USART/USI
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
54
Number Of Timers
3
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATAVRBFLY
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
Package
64TQFP
Device Core
AVR
Family Name
ATmega
Maximum Speed
16 MHz
Operating Supply Voltage
3.3|5 V
For Use With
ATSTK600-TQFP64 - STK600 SOCKET/ADAPTER 64-TQFP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1005 - ISP 4PORT FOR ATMEL AVR MCU JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATAVRISP2 - PROGRAMMER AVR IN SYSTEMATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEMATAVRBFLY - KIT EVALUATION AVR BUTTERFLYATSTK502 - MOD EXPANSION AVR STARTER 500ATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA169P-16AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
- Current page: 13 of 395
- Download datasheet (9Mb)
6.4
8018P–AVR–08/10
Stack Pointer
The Stack is mainly used for storing temporary data, for storing local variables and for storing
return addresses after interrupts and subroutine calls. Note that the Stack is implemented as
growing from higher to lower memory locations. The Stack Pointer Register always points to the
top of the Stack. The Stack Pointer points to the data SRAM Stack area where the Subroutine
and Interrupt Stacks are located. A Stack PUSH command will decrease the Stack Pointer.
The Stack in the data SRAM must be defined by the program before any subroutine calls are
executed or interrupts are enabled. Initial Stack Pointer value equals the last address of the
internal SRAM and the Stack Pointer must be set to point above start of the SRAM, see
7-2 on page
See
Table 6-1.
The AVR Stack Pointer is implemented as two 8-bit registers in the I/O space. The number of
bits actually used is implementation dependent. Note that the data space in some implementa-
tions of the AVR architecture is so small that only SPL is needed. In this case, the SPH Register
will not be present.
Instruction
PUSH
CALL
ICALL
RCALL
POP
RET
RETI
Table 6-1
21.
Stack Pointer instructions
Stack pointer
Decremented by 1
Decremented by 2
Incremented by 1
Incremented by 2
for Stack Pointer details.
Description
Data is pushed onto the stack
Return address is pushed onto the stack with a subroutine call or
interrupt
Data is popped from the stack
Return address is popped from the stack with return from
subroutine or return from interrupt
ATmega169P
Figure
13
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