attiny25v ATMEL Corporation, attiny25v Datasheet - Page 153
attiny25v
Manufacturer Part Number
attiny25v
Description
Microcontroller With 2/4/8k Bytes In-system Programmable Flash
Manufacturer
ATMEL Corporation
Datasheet
1.ATTINY25V.pdf
(231 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
attiny25v-10MU
Manufacturer:
ATMEL
Quantity:
1 650
Part Number:
attiny25v-10MU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
attiny25v-10PU
Manufacturer:
Atmel
Quantity:
29 497
Company:
Part Number:
attiny25v-10PU
Manufacturer:
Atmel
Quantity:
5 000
Company:
Part Number:
attiny25v-10SU
Manufacturer:
ATMEL
Quantity:
2 110
Part Number:
attiny25v-10SU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Part Number:
attiny25v-15ST
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
- Current page: 153 of 231
- Download datasheet (5Mb)
20.2.1
20.3
2586K–AVR–01/08
Device Signature Imprint Table
Latching of Fuses
Table 20-5.
Notes:
Note that fuse bits are locked if Lock Bit 1 (LB1) is programmed. Fuse bits should be pro-
grammed before lock bits. The status of fuse bits is not affected by chip erase.
Lock bits can also be read by device firmware. See section
Data from Software” on page
Fuse values are latched when the device enters programming mode and changes to fuse values
will have no effect until the part leaves programming mode. This does not apply to the EESAVE
Fuse which takes effect once it is programmed. Fuses are also latched on power-up.
The device signature imprint table is a dedicated memory area used for storing miscellaneous
device information, such as the device signature and oscillator calibaration data. Most of this
memory segment is reserved for internal use, as outlined in
Table 20-6.
Notes:
Fuse Low Byte
CKDIV8
CKOUT
SUT1
SUT0
CKSEL3
CKSEL2
CKSEL1
CKSEL0
Address
0x00
0x01
0x02
0x03
0x04
0x05 ... 0x2A
(3)
(3)
1. See
2. Allows system clock to be output on pin. See
3. The default value gives maximum start-up time for the default clock source. See
4. The default setting selects internal, 8MHz RC oscillator. See
1. See section “Signature Bytes” for more information.
2. See section “Calibration Bytes” for more information.
(2)
(1)
(4)
(4)
(4)
(4)
page 28
Fuse Low Byte
Contents of Device Signature Imprint Table.
“System Clock Prescaler” on page 31
High Byte
Signature byte 0
Calibration data for internal oscillator at 8.0 MHz
Signature byte 1
Calibration data for internal oscillator at 6.4 MHz
Signature byte 2
Reserved for internal use
for details.
Bit No
7
6
5
4
3
2
1
0
147.
Description
Clock divided by 8
Clock output enabled
Start-up time setting
Start-up time setting
Clock source setting
Clock source setting
Clock source setting
Clock source setting
(1)
(1)
(1)
for details.
“Clock Output Buffer” on page 32
“Reading Lock, Fuse and Signature
Table
(2)
(2)
Table 6-6 on page 28
20-6.
Default Value
0 (programmed)
1 (unprogrammed)
1 (unprogrammed)
0 (programmed)
0 (programmed)
0 (programmed)
1 (unprogrammed)
0 (programmed)
ATtiny25/45/85
(3)
(4)
(4)
(4)
for details.
Table 6-7 on
(3)
(4)
for details.
153
Related parts for attiny25v
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
High-performance EE PLD
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
8-bit Flash Microcontroller
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
2-Wire Serial EEPROM
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
U6046BREAR WINDOW HEATING TIMER / LONG-TERM TIMER
Manufacturer:
ATMEL Corporation
Datasheet: