ATTINY24-15MZ Atmel, ATTINY24-15MZ Datasheet - Page 25
![MCU AVR 2K FLASH 15MHZ 20-QFN](/photos/12/32/123214/20-qfn-pc_sml.jpg)
ATTINY24-15MZ
Manufacturer Part Number
ATTINY24-15MZ
Description
MCU AVR 2K FLASH 15MHZ 20-QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY24-15MZ.pdf
(225 pages)
Specifications of ATTINY24-15MZ
Package / Case
20-QFN Exposed Pad
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Speed
16MHz
Number Of I /o
12
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 8x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Connectivity
USI
Core Size
8-Bit
Cpu Family
ATtiny
Device Core
AVR
Device Core Size
8b
Frequency (max)
16MHz
Interface Type
SPI/UART
Total Internal Ram Size
128Byte
# I/os (max)
12
Number Of Timers - General Purpose
2
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
2.7V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 125C
Operating Temperature Classification
Automotive
Mounting
Surface Mount
Pin Count
20
Package Type
QFN EP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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7. System Clock and Clock Options
7.1
7.1.1
7.1.2
7.1.3
7701D–AVR–09/10
Clock Systems and their Distribution
CPU Clock – clk
I/O Clock – clk
Flash Clock – clk
I/O
CPU
Figure 7-1 on page 25
All of the clocks need not be active at a given time. In order to reduce power consumption, the
clocks to modules not being used can be halted by using different sleep modes, as described
in
Figure 7-1.
The CPU clock is routed to parts of the system concerned with operation of the AVR core.
Examples of such modules are the General Purpose Register File, the Status Register and the
Data memory holding the Stack Pointer. Halting the CPU clock inhibits the core from perform-
ing general operations and calculations.
The I/O clock is used by the majority of the I/O modules, like the Timer/Counter. The I/O clock
is also used by the External Interrupt module, but note that some external interrupts are
detected by asynchronous logic, allowing such interrupts to be detected even if the I/O clock is
halted.
The Flash clock controls operation of the Flash interface. The Flash clock is usually active
simultaneously with the CPU clock.
FLASH
“Power Management and Sleep Modes” on page
Clock Distribution
ADC
External Clock
clk
clk
ADC
I/O
Source clock
presents the principal clock systems in the AVR
General I/O
Atmel ATtiny24/44/84 [Preliminary]
System Clock
Modules
Control Unit
AVR Clock
Multiplexer
Prescaler
Clock
Calibrated RC
Oscillator
Oscillator
Crystal
Reset Logic
CPU Core
clk
clk
CPU
FLASH
Crystal Oscillator
Low-Frequency
Watchdog Timer
Watchdog clock
34. The clock systems are detailed below.
RAM
Watchdog
Oscillator
Flash and
EEPROM
®
Calibrated RC
and their distribution.
Oscillator
25
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