ATMEGA64M1-AU Atmel, ATMEGA64M1-AU Datasheet - Page 292

• Manufacturer Part Number: ATMEGA64M1-AU
• Description: IC MCU AVR 64K FLASH 32TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA64M1-AU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: CAN, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 11x10b; D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-TQFP, 32-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Lead Free Status / Rohs Status: Details

27.7.1
292
ATmega16M1/32M1/64M1
Signal Names
In this section, some pins of the ATmega16M1/32M1/64M1 are referenced by signal names
describing their functionality during parallel programming, see
Pins not described in 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 27-1. Parallel Programming
Table 27-11. Pin Name Mapping
Signal Name in
Programming Mode
RDY/BSY
OE
WR
BS1
XA0
XA1
PAGEL
BS2
DATA
Table 27-14 on page
Table 27-13 on page
Pin Name
RDY/BSY
+ 12 V
PAGEL
PB[7:0]
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PE2
XA1
BS2
BS1
XA0
WR
OE
PD1
PD2
PD3
PD4
PD5
RESET
XTAL1
GND
PD6
PD7
PE2
I/O
I/O
O
I
I
I
I
I
I
I
293.
Function
0: Device is busy programming, 1: Device is ready
for new command
Output Enable (Active low)
Write Pulse (Active low)
Byte Select 1 (“0” selects Low byte, “1” selects High
byte)
XTAL Action Bit 0
XTAL Action Bit 1
Program memory and EEPROM Data Page Load
Byte Select 2 (“0” selects Low byte, “1” selects 2’nd
High byte)
Bi-directional Data bus (Output when OE is low)
293.
PB[7:0]
AVCC
VCC
+ 5V
+ 5V
DATA
Figure 27-1
and
8209D–AVR–11/10
Table
27-11.