ATmega169P Automotive Atmel Corporation, ATmega169P Automotive Datasheet - Page 263

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ATmega169P Automotive

Manufacturer Part Number
ATmega169P Automotive
Description
Manufacturer
Atmel Corporation

Specifications of ATmega169P Automotive

Flash (kbytes)
16 Kbytes
Pin Count
64
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
54
Ext Interrupts
17
Usb Speed
No
Usb Interface
No
Spi
2
Twi (i2c)
1
Uart
1
Segment Lcd
100
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
1
Eeprom (bytes)
512
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
Temp. Range (deg C)
-40 to 85
I/o Supply Class
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
3
Output Compare Channels
4
Input Capture Channels
1
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
24.5.4
7735B–AVR–12/07
Scanning the Analog Comparator
Table 24-1
XTAL1/XTAL2 connections as well as 32kHz Timer Oscillator.
Table 24-1.
Notes:
The relevant Comparator signals regarding Boundary-scan are shown in
Boundary-scan cell from
described in
The Comparator need not be used for pure connectivity testing, since all analog inputs are
shared with a digital port pin as well.
Figure 24-7. Analog Comparator
Enable Signal
EXTCLKEN
OSCON
OSC32EN
1. Do not enable more than one clock source as main clock at a time.
2. Scanning an Oscillator output gives unpredictable results as there is a frequency drift between
3. The clock configuration is programmed by fuses. As a fuse is not changed run-time, the clock
the internal Oscillator and the JTAG TCK clock. If possible, scanning an external clock is
preferred.
configuration is considered fixed for a given application. The user is advised to scan the same
clock option as to be used in the final system. The enable signals are supported in the scan
chain because the system logic can disable clock options in sleep modes, thereby disconnect-
ing the Oscillator pins from the scan path if not provided.
Summarizes the scan registers for the external clock pin XTAL1, oscillators with
Table
Scan Signals for the Oscillator
ADCEN
ACME
24-2.
Scanned
Clock Line
EXTCLK (XTAL1)
OSCCK
OSC32CK
ADC MULTIPLEXER
REFERENCE
OUTPUT
BANDGAP
Figure 24-8
ACBG
is attached to each of these signals. The signals are
Clock Option
External Clock
External Crystal
External Ceramic Resonator
Low Freq. External Crystal
(1)(2)(3)
ATmega169P Automotive
ACD
AC_IDLE
Scanned Clock Line
ACO
when not Used
Figure
0
1
1
24-7. The
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