ATTINY261-15MZ Atmel, ATTINY261-15MZ Datasheet - Page 23
ATTINY261-15MZ
Manufacturer Part Number
ATTINY261-15MZ
Description
MCU AVR 2K FLASH 15MHZ 32-QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY261-15MZ
Package / Case
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Speed
16MHz
Number Of I /o
16
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 11x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Connectivity
USI
Core Size
8-Bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATTINY261-15MZ
Manufacturer:
ATMEL
Quantity:
5 000
Part Number:
ATTINY261-15MZ
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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6.5.2
6.5.3
7753F–AVR–01/11
EEDR – EEPROM Data Register
EECR – EEPROM Control Register
• Bits 7:0 – EEDR7:0: EEPROM Data
For the EEPROM write operation the EEDR Register contains the data to be written to the
EEPROM in the address given by the EEAR Register. For the EEPROM read operation, the
EEDR contains the data read out from the EEPROM at the address given by EEAR.
• Bit 7 – Res: Reserved Bit
This bit is reserved for future use and will always read as 0 in ATtiny261/461/861. For compati-
bility with future AVR devices, always write this bit to zero. After reading, mask out this bit.
• Bit 6 – Res: Reserved Bit
This bit is reserved in the ATtiny261/461/861 and will always read as zero.
• Bits 5, 4 – EEPM1 and EEPM0: EEPROM Programming Mode Bits
The EEPROM Programming mode bits setting defines which programming action that will be
triggered when writing EEPE. It is possible to program data in one atomic operation (erase the
old value and program the new value) or to split the Erase and Write operations in two different
operations. The Programming times for the different modes are shown in
is set, any write to EEPMn will be ignored. During reset, the EEPMn bits will be reset to 0b00
unless the EEPROM is busy programming.
Table 6-1.
• Bit 3 – EERIE: EEPROM Ready Interrupt Enable
Writing EERIE to one enables the EEPROM Ready Interrupt if the I-bit in SREG is set. Writing
EERIE to zero disables the interrupt. The EEPROM Ready Interrupt generates a constant inter-
rupt when Non-volatile memory is ready for programming.
Bit
0x1D (0x3D)
Read/Write
Initial Value
Bit
0x1C (0x3C)
Read/Write
Initial Value
EEPM1
0
0
1
1
EEPM0
EEPROM Mode Bits
EEDR7
0
1
0
1
R/W
R
7
0
7
–
0
Programming
EEDR6
R/W
R
6
0
6
–
0
3.4 ms
1.8 ms
1.8 ms
Time
–
EEDR5
EEPM1
R/W
R/W
ATtiny261/ATtiny461/ATtiny861
X
5
0
5
Erase Only
Write Only
Operation
Erase and Write in one operation (Atomic Operation)
Reserved for future use
EEDR4
EEPM0
R/W
R/W
4
0
4
X
EEDR3
EERIE
R/W
R/W
3
0
3
0
EEMPE
EEDR2
R/W
R/W
2
0
2
0
EEDR1
EEPE
R/W
R/W
X
1
0
1
Table
EEDR0
EERE
6-1. While EEPE
R/W
R/W
0
0
0
0
EEDR
EECR
23
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