ATMEGA169V-1AC Atmel, ATMEGA169V-1AC Datasheet - Page 269
ATMEGA169V-1AC
Manufacturer Part Number
ATMEGA169V-1AC
Description
IC MCU AVR 16K 1.8V 1MHZ 64-TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA169V-1AC
Core Processor
AVR
Core Size
8-Bit
Speed
1MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
53
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)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
64-TQFP, 64-VQFP
For Use With
ATAVRBFLY - KIT EVALUATION AVR BUTTERFLYATSTK502 - MOD EXPANSION AVR STARTER 500
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Latching of Fuses
Signature Bytes
Calibration Byte
Parallel Programming
Parameters, Pin
Mapping, and
Commands
Signal Names
2514H–AVR–05/03
The fuse values are latched when the device enters programming mode and changes of
the fuse values will have no effect until the part leaves Programming mode. This does
not apply to the EESAVE Fuse which will take effect once it is programmed. The fuses
are also latched on Power-up in Normal mode.
All Atmel microcontrollers have a three-byte signature code which identifies the device.
This code can be read in both serial and parallel mode, also when the device is locked.
The three bytes reside in a separate address space.
For the ATmega169 the signature bytes are:
1. 0x000: 0x1E (indicates manufactured by Atmel).
2. 0x001: 0x94 (indicates 16KB Flash memory).
3. 0x002: 0x05 (indicates ATmega169 device when 0x001 is 0x94).
The ATmega169 has a byte calibration value for the internal RC Oscillator. This byte
resides in the high byte of address 0x000 in the signature address space. During reset,
this byte is automatically written into the OSCCAL Register to ensure correct frequency
of the calibrated RC Oscillator.
This section describes how to parallel program and verify Flash Program memory,
EEPROM Data memory, Memory Lock bits, and Fuse bits in the ATmega169. Pulses
are assumed to be at least 250 ns unless otherwise noted.
In this section, some pins of the ATmega169 are referenced by signal names describing
their functionality during parallel programming, see Figure 118 and Table 121. 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 posi-
tive pulse. The bit coding is shown in Table 123.
When pulsing WR or OE, the command loaded determines the action executed. The dif-
ferent Commands are shown in Table 124.
Figure 118. Parallel Programming
RDY/BSY
PAGEL
+12 V
BS1
XA0
XA1
BS2
WR
OE
PD1
PD2
PD3
PD4
PD5
PD6
PD7
RESET
XTAL1
GND
PA0
PB7 - PB0
AVCC
VCC
+5V
+5V
ATmega169V/L
DATA
269
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