ATMEGA16L-8PU Atmel, ATMEGA16L-8PU Datasheet - Page 134
![IC AVR MCU 16K 8MHZ 3V 40DIP](/photos/6/70/67049/453-40-dip_sml.jpg)
ATMEGA16L-8PU
Manufacturer Part Number
ATMEGA16L-8PU
Description
IC AVR MCU 16K 8MHZ 3V 40DIP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheets
1.ATMEGA16L-8MI.pdf
(26 pages)
2.ATMEGA16L-8MI.pdf
(357 pages)
3.ATMEGA16-16PU.pdf
(358 pages)
Specifications of ATMEGA16L-8PU
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
Processor Series
ATMEGA16x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
JTAG/SPI/UART
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
32
Number Of Timers
3
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
EWAVR, EWAVR-BL
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
A/d Inputs
8-Channel, 10-Bit
Cpu Speed
8 MIPS
Eeprom Memory
512 Bytes
Input Output
32
Interface
JTAG/SPI/UART
Memory Type
Flash
Number Of Bits
8
Package Type
40-pin PDIP
Programmable Memory
16K Bytes
Timers
2-8-bit, 1-16-bit
Voltage, Range
2.7-5.5 V
For Use With
ATSTK600-TQFP44 - STK600 SOCKET/ADAPTER 44-TQFPATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEMATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 134 of 357
- Download datasheet (8Mb)
Timer/Counter
Prescaler
Special Function IO
Register – SFIOR
2466T–AVR–07/10
Figure 64. Prescaler for Timer/Counter2
The clock source for Timer/Counter2 is named clk
system I/O clock clk
clocked from the TOSC1 pin. This enables use of Timer/Counter2 as a Real Time Counter
(RTC). When AS2 is set, pins TOSC1 and TOSC2 are disconnected from Port C. A crystal can
then be connected between the TOSC1 and TOSC2 pins to serve as an independent clock
source for Timer/Counter2. The Oscillator is optimized for use with a 32.768 kHz crystal. Apply-
ing an external clock source to TOSC1 is not recommended.
For Timer/Counter2, the possible prescaled selections are: clk
clk
Setting the PSR2 bit in SFIOR resets the prescaler. This allows the user to operate with a pre-
dictable prescaler.
• Bit 1 – PSR2: Prescaler Reset Timer/Counter2
When this bit is written to one, the Timer/Counter2 prescaler will be reset. The bit will be cleared
by hardware after the operation is performed. Writing a zero to this bit will have no effect. This bit
will always be read as zero if Timer/Counter2 is clocked by the internal CPU clock. If this bit is
written when Timer/Counter2 is operating in asynchronous mode, the bit will remain one until the
prescaler has been reset.
Bit
Read/Write
Initial Value
T2S
/128, clk
TOSC1
clk
PSR2
CS20
CS21
CS22
AS2
I/O
ADTS2
R/W
T2S
7
0
/256, and clk
ADTS1
IO
R/W
. By setting the AS2 bit in ASSR, Timer/Counter2 is asynchronously
6
0
clk
T2S
ADTS0
T2S
R/W
5
0
/1024. Additionally, clk
Clear
R
4
–
0
TIMER/COUNTER2 CLOCK SOURCE
ACME
R/W
0
T2S
3
0
. clk
10-BIT T/C PRESCALER
T2S
clk
T2S
PUD
R/W
T2
2
0
as well as 0 (stop) may be selected.
is by default connected to the main
PSR2
R/W
1
0
T2S
ATmega16(L)
/8, clk
PSR10
R/W
0
0
T2S
/32, clk
SFIOR
T2S
/64,
134
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