ATMEGA16L-8AU Atmel, ATMEGA16L-8AU Datasheet - Page 19
ATMEGA16L-8AU
Manufacturer Part Number
ATMEGA16L-8AU
Description
IC AVR MCU 16K 8MHZ 3V 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA16L-8AU
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
44-TQFP, 44-VQFP
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
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
For Use With
ATSTK600-TQFP44 - STK600 SOCKET/ADAPTER 44-TQFPATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1005 - ISP 4PORT FOR ATMEL AVR MCU JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEMATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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- Current page: 19 of 357
- Download datasheet (8Mb)
The EEPROM Address
Register – EEARH and
EEARL
The EEPROM Data
Register – EEDR
The EEPROM Control
Register – EECR
2466T–AVR–07/10
• Bits 15..9 – Res: Reserved Bits
These bits are reserved bits in the ATmega16 and will always read as zero.
• Bits 8..0 – EEAR8..0: EEPROM Address
The EEPROM Address Registers
512 bytes EEPROM space. The EEPROM data bytes are addressed linearly between 0 and
511. The initial value of EEAR is undefined. A proper value must be written before the EEPROM
may be accessed.
• Bits 7..0 – EEDR7.0: EEPROM Data
For the EEPROM write operation, the EEDR Register contains the data to be written to the
EEPROM in the address given by the EEAR Register. For the EEPROM read operation, the
EEDR contains the data read out from the EEPROM at the address given by EEAR.
• Bits 7..4 – Res: Reserved Bits
These bits are reserved bits in the ATmega16 and will always read as zero.
• Bit 3 – EERIE: EEPROM Ready Interrupt Enable
Writing EERIE to one enables the EEPROM Ready Interrupt if the I bit in SREG is set. Writing
EERIE to zero disables the interrupt. The EEPROM Ready interrupt generates a constant inter-
rupt when EEWE is cleared.
• Bit 2 – EEMWE: EEPROM Master Write Enable
The EEMWE bit determines whether setting EEWE to one causes the EEPROM to be written.
When EEMWE is set, setting EEWE within four clock cycles will write data to the EEPROM at
the selected address If EEMWE is zero, setting EEWE will have no effect. When EEMWE has
been written to one by software, hardware clears the bit to zero after four clock cycles. See the
description of the EEWE bit for an EEPROM write procedure.
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
EEAR7
MSB
R/W
R/W
15
R
X
R
–
7
0
7
0
7
–
0
EEAR6
R/W
R/W
14
R
X
R
–
6
0
6
0
6
–
0
EEAR5
R/W
R/W
13
R
R
–
5
0
X
5
0
5
–
0
–
EEARH and EEARL – specify the EEPROM address in the
EEAR4
R/W
R/W
12
–
4
R
0
X
4
0
4
–
R
0
EEAR3
EERIE
R/W
R/W
R/W
11
R
X
–
3
0
3
0
3
0
EEMWE
EEAR2
R/W
R/W
R/W
10
R
X
–
2
0
2
0
2
0
EEAR1
EEWE
R/W
R/W
R/W
R
X
9
–
1
0
1
0
1
X
ATmega16(L)
EEAR8
EEAR0
EERE
R/W
R/W
LSB
R/W
R/W
8
0
X
X
0
0
0
0
EEARH
EEARL
EEDR
EECR
19
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