ATTINY48-MMU Atmel, ATTINY48-MMU Datasheet - Page 200
ATTINY48-MMU
Manufacturer Part Number
ATTINY48-MMU
Description
MCU AVR 5K FLASH 12MHZ 28-QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY48-MMU
Core Processor
AVR
Core Size
8-Bit
Speed
12MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
24
Program Memory Size
4KB (2K x 16)
Program Memory Type
FLASH
Eeprom Size
64 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 6x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
Processor Series
ATTINY4x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
256 B
Interface Type
2-Wire, I2S, SPI
Maximum Clock Frequency
12 MHz
Number Of Programmable I/os
24
Number Of Timers
2
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 6 Channel
Package
28VQFN EP
Device Core
AVR
Family Name
ATtiny
Maximum Speed
12 MHz
Operating Supply Voltage
2.5|3.3|5 V
For Use With
ATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVR
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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21.2.13
21.2.14
21.3
200
Serial Programming
ATtiny48/88
Reading Signature Bytes
Reading the Calibration Byte
Figure 21-6. Mapping Between BS1, BS2 and the Fuse and Lock Bits During Read
The algorithm for reading the signature bytes is as follows (see
page 194
The algorithm for reading the calibration byte is as follows (see
page 194
Flash and EEPROM memory arrays can both be programmed using the serial SPI bus while
RESET is pulled to GND. The serial interface consists of pins SCK, MOSI (input) and MISO (out-
put). After RESET is set low, the Programming Enable instruction needs to be executed before
program/erase operations can be executed.
Serial programming signals and connections are illustrated in
ping is listed in
1. A: Load command “0000 1000”
2. B: Load address low byte (0x00 – 0x02)
3. Set OE to “0”, and BS1 to “0”. The selected signature byte can now be read at DATA.
4. Set OE to “1”.
1. A: Load command “0000 1000”.
2. B: Load address low byte, 0x00.
3. Set OE to “0”, and BS1 to “1”. The calibration byte can now be read at DATA.
4. Set OE to “1”.
Fuse Low Byte
Extended Fuse Byte
Fuse High Byte
Lock Bits
for details on command and address loading):
for details on command and address loading):
Table 21-7 on page
BS2
BS2
202.
0
1
0
1
Figure
BS1
“Programming the Flash” on
“Programming the Flash” on
21-7, below. The pin map-
0
1
8008G–AVR–04/11
DATA
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