TINY88-15MZ Atmel, TINY88-15MZ Datasheet - Page 117
![no-image](/images/manufacturer_photos/0/0/78/atmel_sml.jpg)
TINY88-15MZ
Manufacturer Part Number
TINY88-15MZ
Description
MCU AVR 8KB FLASH 12MHZ 32-QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.TINY88-15MZ.pdf
(246 pages)
Specifications of TINY88-15MZ
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
28
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Eeprom Size
64 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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ATtiny88 Automotive
The synchronization and edge detector logic introduces a delay of 2.5 to 3.5 system clock cycles
from an edge has been applied to the T1/T0 pin to the counter is updated.
Enabling and disabling of the clock input must be done when T1/T0 has been stable for at least
one system clock cycle, otherwise it is a risk that a false Timer/Counter clock pulse is generated.
Each half period of the external clock applied must be longer than one system clock cycle to
ensure correct sampling. The external clock must be guaranteed to have less than half the sys-
tem clock frequency (f
< f
/2) given a 50% duty cycle. Since the edge detector uses
ExtClk
clk_I/O
sampling, the maximum frequency of an external clock it can detect is half the sampling fre-
quency (Nyquist sampling theorem). However, due to variation of the system clock frequency
and duty cycle caused by oscillator source tolerances, it is recommended that maximum fre-
quency of an external clock source is less than f
/2.5.
clk_I/O
An external clock source can not be prescaled.
(1)
Figure 13-2. Prescaler for Timer/Counter0 and Timer/Counter1
clk
I/O
Clear
PSRSYNC
T0
Synchronization
T1
Synchronization
clk
clk
T1
T0
T1/T0)
Note:
1. The synchronization logic on the input pins (
is shown in
Figure
13-1.
117
9157B–AVR–01/10
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