ATTINY28V-1MU Atmel, ATTINY28V-1MU Datasheet - Page 51
![IC MCU AVR 2K 1.8V 1.2MHZ 32-QFN](/photos/12/13/121309/313-32-qfn_sml.jpg)
ATTINY28V-1MU
Manufacturer Part Number
ATTINY28V-1MU
Description
IC MCU AVR 2K 1.8V 1.2MHZ 32-QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY28V-1MU
Core Processor
AVR
Core Size
8-Bit
Speed
1.2MHz
Peripherals
POR, WDT
Number Of I /o
11
Program Memory Size
2KB (1K x 16)
Program Memory Type
FLASH
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
Processor Series
ATTINY2x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
32 B
Maximum Clock Frequency
1.2 MHz
Number Of Programmable I/os
11
Number Of Timers
1
Operating Supply Voltage
1.8 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
8 bit
For Use With
ATSTK600-DIP40 - STK600 SOCKET/ADAPTER 40-PDIPATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Ram Size
-
Data Converters
-
Connectivity
-
Lead Free Status / Rohs Status
Details
Reading the Fuse and Lock
Bits
Reading the Signature Bytes
and Calibration Byte
1062F–AVR–07/06
The algorithm for reading the Fuse and Lock bits is as follows (refer to “Programming
the Flash” for details on command loading):
A: Load Command “0000 0100”.
1. Set OE to “0”, and BS to “0”. The status of the Fuse bits can now be read at
2. Set BS to “1”. The status of the Lock bits can now be read at DATA (“0” means
3. Set OE to “1”.
The algorithm for reading the signature bytes and the calibration byte is as follows (refer
to “Programming the Flash” for details on command and address loading):
A: Load Command “0000 1000”.
C: Load Address Low Byte ($00 - $02).
1. Set OE to “0”, and BS to “0”. The selected signature byte can now be read at
C: Load Address Low Byte ($00).
1. Set OE to “0”, and BS to “1”. The calibration byte can now be read at DATA.
2. Set OE to “1”.
Figure 38. Programming the Flash Waveforms
RDY/BSY
RESET
XTAL1
DATA
DATA (“0” means programmed).
Bit 4 = INTCAP Fuse
Bit 3 = CKSEL3 Fuse
Bit 2 = CKSEL2 Fuse
Bit 1 = CKSEL1 Fuse
Bit 0 = CKSEL0 Fuse
programmed).
Bit 2: Lock Bit2
Bit 1: Lock Bit1
DATA.
XA1
XA0
WR
OE
BS
12V
$10
ADDR. HIGH
ADDR. LOW
DATA LOW
ATtiny28L/V
51