ATTINY45-15SZ Atmel, ATTINY45-15SZ Datasheet - Page 23
ATTINY45-15SZ
Manufacturer Part Number
ATTINY45-15SZ
Description
MCU AVR 4K FLASH 15MHZ 8-SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY25-15MZ.pdf
(196 pages)
Specifications of ATTINY45-15SZ
Package / Case
8-SOIC (3.9mm Width)
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Speed
16MHz
Number Of I /o
6
Eeprom Size
256 x 8
Core Processor
AVR
Program Memory Type
FLASH
Ram Size
256 x 8
Program Memory Size
4KB (4K x 8)
Data Converters
A/D 4x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Connectivity
USI
Core Size
8-Bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATTINY45-15SZ
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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6.2
7598H–AVR–07/09
Clock Sources
Figure 6-2.
The device has the following clock source options, selectable by Flash Fuse bits as shown
below. The clock from the selected source is input to the AVR clock generator, and routed to the
appropriate modules.
Table 6-1.
Note:
The various choices for each clocking option is given in the following sections. When the CPU
wakes up from Power-down or Power-save, the selected clock source is used to time the
start-up, ensuring stable Oscillator operation before instruction execution starts. When the CPU
starts from reset, there is an additional delay allowing the power to reach a stable level before
commencing normal operation. The Watchdog Oscillator is used for timing this real-time part of
the start-up time. The number of WDT Oscillator cycles used for each time-out is shown in
6-2.
Device Clocking Option
External Clock
PLL Clock
Calibrated Internal RC Oscillator 8.0 MHz
Watchdog Oscillator 128 kHz
External Low-frequency Crystal
External Crystal/Ceramic Resonator
Reserved
XTAL1
XTAL2
1. For all fuses “1” means unprogrammed while “0” means programmed.
OSCCAL
8.0 MHz / 6.4 MHz
RC OSCILLATOR
PCK Clocking System
Device Clocking Options Select
PLLE
OSCILLATORS
PLLCK & CKSEL FUSES
8x / 4x
PLL
(1)
Detector
DIVIDE
Lock
BY 4
ATtiny25/45/85
CLKPS3..0
Prescaler
System
Clock
0101, 0111, 0011
CKSEL3..0
1000-1111
64 / 25.6 MHz
0000
0001
0010
0100
0110
PLOCK
SYSTEM
CLOCK
PCK
Table
23
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