ATTINY48-MMHR Atmel, ATTINY48-MMHR Datasheet - Page 120
ATTINY48-MMHR
Manufacturer Part Number
ATTINY48-MMHR
Description
MCU AVR 4KB FLASH 12MHZ 28QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY48-MU.pdf
(302 pages)
Specifications of ATTINY48-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
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 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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14. SPI – Serial Peripheral Interface
14.1
14.2
120
Features
Overview
ATtiny48/88
•
•
•
•
•
•
•
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The Serial Peripheral Interface (SPI) allows high-speed synchronous data transfer between the
ATtiny48/88 and peripheral devices or between several AVR devices.
Figure 14-1. SPI Block Diagram
Note:
Full-duplex, Three-wire Synchronous Data Transfer
Master or Slave Operation
LSB First or MSB First Data Transfer
Seven Programmable Bit Rates
End of Transmission Interrupt Flag
Write Collision Flag Protection
Wake-up from Idle Mode
Double Speed (CK/2) Master SPI Mode
/2/4/8/16/32/64/128
1. Refer to
SPI STATUS REGISTER
DIVIDER
SELECT
XTAL
SPI CONTROL
Figure 1-1 on page
SPI CLOCK (MASTER)
SPI INTERRUPT
REQUEST
(1)
MSTR
SPE
2, and
8
MSB
INTERNAL
DATA BUS
8
8 BIT SHIFT REGISTER
Table 10-5 on page 69
READ DATA BUFFER
8
SPI CONTROL REGISTER
CLOCK
LOGIC
CLOCK
LSB
for SPI pin placement.
M
M
M
S
S
S
8008G–AVR–04/11
MISO
MOSI
SCK
SS
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