ATTINY25V-15ST Atmel, ATTINY25V-15ST Datasheet - Page 131
ATTINY25V-15ST
Manufacturer Part Number
ATTINY25V-15ST
Description
MCU AVR 2K FLASH 4MHZ 8-SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY25-15MZ.pdf
(196 pages)
Specifications of ATTINY25V-15ST
Package / Case
8-SOIC (3.9mm Width)
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Speed
8MHz
Number Of I /o
6
Eeprom Size
128 x 8
Core Processor
AVR
Program Memory Type
FLASH
Ram Size
128 x 8
Program Memory Size
2KB (2K x 8)
Data Converters
A/D 4x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Connectivity
USI
Core Size
8-Bit
Processor Series
ATTINY2x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
128 B
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATTINY25V-15ST
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
- Current page: 131 of 196
- Download datasheet (4Mb)
20.3
20.4
7598H–AVR–07/09
Performing a Page Write
Addressing the Flash During Self-Programming
To execute Page Write, set up the address in the Z-pointer, write “00000101” to SPMCSR and
execute SPM within four clock cycles after writing SPMCSR. The data in R1 and R0 is ignored.
The page address must be written to PCPAGE. Other bits in the Z-pointer must be written to
zero during this operation.
The Z-pointer is used to address the SPM commands.
Since the Flash is organized in pages (see
be treated as having two different sections. One section, consisting of the least significant bits, is
addressing the words within a page, while the most significant bits are addressing the pages.
This is shown in
addressed independently. Therefore it is of major importance that the software addresses the
same page in both the Page Erase and Page Write operation.
The LPM instruction uses the Z-pointer to store the address. Since this instruction addresses the
Flash byte-by-byte, also the LSB (bit Z0) of the Z-pointer is used.
Figure 20-1. Addressing the Flash During SPM
Note:
Bit
ZH (R31)
ZL (R30)
• The CPU is halted during the Page Write operation.
Z - REGISTER
1. The different variables used in
PROGRAM MEMORY
BIT
PAGE
PROGRAM
COUNTER
15
Z15
Z7
15
7
Figure
PAGE ADDRESS
WITHIN THE FLASH
ZPCMSB
PCMSB
Z14
14
Z6
20-1. Note that the Page Erase and Page Write operations are
6
PCPAGE
Z13
Z5
13
5
Figure 20-1
ZPAGEMSB
PAGEMSB
Table 21-6 on page
PCWORD
Z12
12
Z4
4
WORD ADDRESS
WITHIN A PAGE
(1)
are listed in
1
Z11
0
0
Z3
11
3
INSTRUCTION WORD
PAGE
Table 21-6 on page
Z10
10
Z2
2
137), the Program Counter can
ATtiny25/45/85
Z1
Z9
9
1
PCWORD[PAGEMSB:0]:
00
01
02
PAGEEND
137.
Z8
Z0
8
0
131
Related parts for ATTINY25V-15ST
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
IC MCU AVR 2K FLASH 10MHZ 20-QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 2KB FLASH 10MHZ 8SOIC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU 2K 10MHZ 8-DIP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MCU AVR 2KB FLASH 10MHZ 8SOIC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MCU AVR 2KB FLASH 10MHZ 8SOIC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 2KB FLASH 10MHZ 8SOIC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 2KB FLASH 10MHZ 20QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 2K ISP FLASH 1.8V 8-SOIC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU 2K 10MHZ 8DIP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU 2K 10MHZ 8SOIC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
8-bit Microcontrollers - MCU 2KB FLASH,128B EE, 128B SRAM-10MHz
Manufacturer:
Atmel
Part Number:
Description:
8-bit Microcontrollers - MCU 2KB FL,128B EE,128B SRAM-10MHz
Manufacturer:
Atmel
Part Number:
Description:
8-bit Microcontrollers - MCU AVR 16KB FL 512B EE 1KB SRAM 10 MHZ GRN
Manufacturer:
Atmel