ATMEGA16A-AUR Atmel, ATMEGA16A-AUR Datasheet - Page 267

• Manufacturer Part Number: ATMEGA16A-AUR
• Description: MCU AVR 16KB FLASH 16MHZ 44TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA16A-AUR

• 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: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

26.5
26.6
26.6.1
8154B–AVR–07/09
Page Size
Parallel Programming Parameters, Pin Mapping, and Commands
Signal Names
Table 26-5.
Table 26-6.
This section describes how to parallel program and verify Flash Program memory, EEPROM
Data memory, Memory Lock bits, and Fuse bits in the ATmega16A. Pulses are assumed to be at
least 250 ns unless otherwise noted.
In this section, some pins of the ATmega16A are referenced by signal names describing their
functionality during parallel programming, see
the following table are referenced by pin names.
The XA1/XA0 pins determine the action executed when the XTAL1 pin is given a positive pulse.
The bit coding is shown in
When pulsing WR or OE, the command loaded determines the action executed. The different
Commands are shown in
Figure 26-1. Parallel Programming
8K words (16K bytes)
EEPROM Size
512 bytes
Flash Size
No. of Words in a Page and no. of Pages in the Flash
No. of Words in a Page and no. of Pages in the EEPROM
Page Size
RDY/BSY
4 bytes
PAGEL
Table
+12 V
Table
BS2
BS1
XA0
XA1
Page Size
WR
OE
64 words
26-10.
26-9.
PCWORD
EEA[1:0]
PD1
PD2
PD3
PD4
PD5
PD6
RESET
XTAL1
GND
PD7
PA0
PCWORD
PC[5:0]
Figure 26-1
PB7 - PB0
No. of Pages
AVCC
VCC
No. of Pages
128
and
128
Table
+5V
+5V
DATA
26-7. Pins not described in
PCPAGE
EEA[8:2]
ATmega16A
PCPAGE
PC[12:6]
EEAMSB
PCMSB
8
12
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