ATTINY24-15MZ Atmel, ATTINY24-15MZ Datasheet - Page 58
![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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58
Atmel ATtiny24/44/84 [Preliminary]
Figure 12-3. Synchronization when Reading an Externally Applied Pin value
Consider the clock period starting shortly after the first falling edge of the system clock. The
latch is closed when the clock is low, and goes transparent when the clock is high, as indi-
cated by the shaded region of the “SYNC LATCH” signal. The signal value is latched when the
system clock goes low. It is clocked into the PINxn Register at the succeeding positive clock
edge. As indicated by the two arrows t
be delayed between ½ and 1½ system clock period depending upon the time of assertion.
When reading back a software assigned pin value, a nop instruction must be inserted as indi-
cated in
positive edge of the clock. In this case, the delay t
clock period.
Figure 12-4. Synchronization when Reading a Software Assigned Pin Value
INSTRUCTIONS
INSTRUCTIONS
SYSTEM CLK
SYNC LATCH
SYSTEM CLK
SYNC LATCH
Figure 12-4 on page
PINxn
PINxn
r17
r16
r17
out PORTx, r16
58. The out instruction sets the “SYNC LATCH” signal at the
XXX
pd,max
and t
t
pd, max
0x00
0x00
pd,min
XXX
nop
pd
t
pd
through the synchronizer is one system
t
, a single signal transition on the pin will
0xFF
pd, min
in r17, PINx
in r17, PINx
7701D–AVR–09/10
0xFF
0xFF
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