ATMEGA16A-AU Atmel, ATMEGA16A-AU Datasheet - Page 298
![MCU AVR 16K FLASH 16MHZ 44-TQFP](/photos/6/70/67042/313-44-tqfp_sml.jpg)
ATMEGA16A-AU
Manufacturer Part Number
ATMEGA16A-AU
Description
MCU AVR 16K FLASH 16MHZ 44-TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA16A-AU
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
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
2-Wire/SPI/USART
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
32
Number Of Timers
3
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32ATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA16A-AU
Manufacturer:
HIROSE
Quantity:
3 000
Part Number:
ATMEGA16A-AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Part Number:
ATMEGA16A-AUR
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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Table 27-4.
Notes:
27.8
298
Symbol
t
t
t
t
HD;DAT
SU;DAT
SU;STO
BUF
1. In ATmega16A, this parameter is characterized and not 100% tested.
2. Required only for f
3. C
4. f
5. This requirement applies to all ATmega16A Two-wire Serial Interface operation. Other devices connected to the Two-wire
6. The actual low period generated by the ATmega16A Two-wire Serial Interface is (1/f
7. The actual low period generated by the ATmega16A Two-wire Serial Interface is (1/f
SPI Timing Characteristics
ATmega16A
Serial Bus need only obey the general f
6 MHz for the low time requirement to be strictly met at f
ment will not be strictly met for f
communicate at full speed (400 kHz) with other ATmega16A devices, as well as any other device with a proper t
tance margin.
Parameter
Data hold time
Data setup time
Setup time for STOP condition
Bus free time between a STOP and START
condition
CK
b
= capacitance of one bus line in pF.
= CPU clock frequency
Two-wire Serial Bus Requirements (Continued)
Figure 27-4. Two-wire Serial Bus Timing
Figure 27-5. SPI Serial Programming Waveforms
SCL
> 100 kHz.
SCL
SDA
SERIAL DATA OUTPUT
SERIAL CLOCK INPUT
SERIAL DATA INPUT
t
SU;STA
SCL
SAMPLE
> 308 kHz when f
(MOSI)
(MISO)
(SCK)
SCL
requirement.
t
HD;STA
t
of
t
LOW
MSB
MSB
CK
f
f
f
f
f
f
f
f
= 8 MHz. Still, ATmega16A devices connected to the bus may
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
Condition
t
= 100 kHz.
≤ 100 kHz
> 100 kHz
≤ 100 kHz
> 100 kHz
≤ 100 kHz
> 100 kHz
≤ 100 kHz
> 100 kHz
HIGH
t
HD;DAT
t
LOW
t
SU;DAT
SCL
SCL
- 2/f
Min
250
100
4.0
0.6
4.7
1.3
- 2/f
0
0
CK
CK
), thus f
), thus the low time require-
CK
t
SU;STO
must be greater than
t
Max
3.45
r
0.9
–
–
–
–
–
–
LSB
LSB
8154B–AVR–07/09
LOW
t
BUF
accep-
Units
µs
µs
ns
ns
µs
µs
µs
µs
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