ATTINY88-MMHR Atmel, ATTINY88-MMHR Datasheet - Page 200
ATTINY88-MMHR
Manufacturer Part Number
ATTINY88-MMHR
Description
MCU AVR 8KB FLASH 12MHZ 28QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY48-MU.pdf
(302 pages)
Specifications of ATTINY88-MMHR
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
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
64 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
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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