ATTINY44V-10PU Atmel, ATTINY44V-10PU Datasheet - Page 11
![IC MCU AVR 4K FLASH 10MHZ 14-DIP](/photos/7/39/73953/313-14-dip_sml.jpg)
ATTINY44V-10PU
Manufacturer Part Number
ATTINY44V-10PU
Description
IC MCU AVR 4K FLASH 10MHZ 14-DIP
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY44V-10PU
Core Processor
AVR
Core Size
8-Bit
Speed
10MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
12
Program Memory Size
4KB (2K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
14-DIP (0.300", 7.62mm)
Package
14PDIP
Device Core
AVR
Family Name
ATtiny
Maximum Speed
10 MHz
Operating Supply Voltage
2.5|3.3|5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
12
Interface Type
SPI/USI
On-chip Adc
8-chx10-bit
Number Of Timers
2
For Use With
ATAVRISP2 - PROGRAMMER AVR IN SYSTEM
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 11 of 238
- Download datasheet (5Mb)
4.5
4.5.1
8006K–AVR–10/10
Stack Pointer
SPH and SPL — Stack Pointer Register
Figure 4-3.
In the different addressing modes these address registers have functions as fixed displacement,
automatic increment, and automatic decrement (see the instruction set reference for details).
The Stack is mainly used for storing temporary data, for storing local variables and for storing
return addresses after interrupts and subroutine calls. The Stack Pointer Register always points
to the top of the Stack. Note that the Stack is implemented as growing from higher memory loca-
tions to lower memory locations. This implies that a Stack PUSH command decreases the Stack
Pointer.
The Stack Pointer points to the data SRAM Stack area where the Subroutine and Interrupt
Stacks are located. This Stack space in the data SRAM must be defined by the program before
any subroutine calls are executed or interrupts are enabled. The Stack Pointer must be set to
point above 0x60. The Stack Pointer is decremented by one when data is pushed onto the Stack
with the PUSH instruction, and it is decremented by two when the return address is pushed onto
the Stack with subroutine call or interrupt. The Stack Pointer is incremented by one when data is
popped from the Stack with the POP instruction, and it is incremented by two when data is
popped from the Stack with return from subroutine RET or return from interrupt RETI.
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.
X-register
Y-register
Z-register
Bit
0x3E (0x5E)
0x3D (0x5D)
Read/Write
Read/Write
Initial Value
Initial Value
The X-, Y-, and Z-registers
RAMEND
RAMEND
SP15
SP7
R/W
R/W
15
7
15
7
R27 (0x1B)
15
7
R29 (0x1D)
15
7
R31 (0x1F)
RAMEND
RAMEND
SP14
SP6
R/W
R/W
14
6
RAMEND
RAMEND
SP13
SP5
R/W
R/W
13
5
XH
YH
ZH
0
RAMEND
RAMEND
SP12
SP4
R/W
R/W
12
4
RAMEND
RAMEND
SP11
SP3
R/W
R/W
11
3
0
0
7
R26 (0x1A)
7
R28 (0x1C)
7
R30 (0x1E)
RAMEND
RAMEND
SP10
SP2
R/W
R/W
10
2
ATtiny24/44/84
RAMEND
RAMEND
SP9
SP1
R/W
R/W
9
1
XL
YL
ZL
0
RAMEND
RAMEND
R/W
R/W
SP8
SP0
8
0
SPH
SPL
11
0
0
0
0
0
Related parts for ATTINY44V-10PU
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![ATTINY44V-20MU](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
ATMEL Corporation
Datasheet:
![ATTINY44V-15MT](/photos/6/87/68751/313-20-qfn_tmb.jpg)
Part Number:
Description:
MCU AVR 4K FLASH 15MHZ 20-QFN
Manufacturer:
Atmel
Datasheet:
![ATTINY44V-10MU](/photos/6/87/68751/313-20-qfn_tmb.jpg)
Part Number:
Description:
IC MCU AVR 4K FLASH 10MHZ 20-QFN
Manufacturer:
Atmel
Datasheet:
![ATTINY44V-10SSU](/photos/7/39/73946/313-14-soic_tmb.jpg)
Part Number:
Description:
IC MCU AVR 4K FLASH 10MHZ 14SOIC
Manufacturer:
Atmel
Datasheet:
![ATTINY44V-10SSUR](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
MCU AVR 4KB FLASH 10MHZ 20SOIC
Manufacturer:
Atmel
Datasheet:
![ATTINY44V-10MUR](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
MCU AVR 4KB FLASH 10MHZ 32QFN
Manufacturer:
Atmel
Datasheet:
![ATtiny44](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
![ATtiny44 Automotive](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
![ATTINY44-15MZ](/photos/12/32/123214/20-qfn-pc_tmb.jpg)
Part Number:
Description:
MCU AVR 4K FLASH 15MHZ 20-QFN
Manufacturer:
Atmel
Datasheet:
![ATTINY44-20MU](/photos/6/87/68751/313-20-qfn_tmb.jpg)
Part Number:
Description:
IC MCU AVR 4K FLASH 20MHZ 20-QFN
Manufacturer:
Atmel
Datasheet:
![ATTINY44-20SSU](/photos/7/39/73946/313-14-soic_tmb.jpg)
Part Number:
Description:
IC MCU AVR 4K FLASH 20MHZ 14SOIC
Manufacturer:
Atmel
Datasheet: