ATmega16M1 Automotive Atmel Corporation, ATmega16M1 Automotive Datasheet - Page 44
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ATmega16M1 Automotive
Manufacturer Part Number
ATmega16M1 Automotive
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT90CAN128_AUTOMOTIVE.pdf
(225 pages)
2.ATMEGA16M1_AUTOMOTIVE.pdf
(12 pages)
3.ATMEGA16M1_AUTOMOTIVE.pdf
(25 pages)
4.ATMEGA16M1_AUTOMOTIVE.pdf
(367 pages)
Specifications of ATmega16M1 Automotive
Flash (kbytes)
16 Kbytes
Pin Count
32
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
12
Hardware Qtouch Acquisition
No
Max I/o Pins
27
Ext Interrupts
27
Usb Speed
No
Usb Interface
No
Spi
1
Uart
1
Can
1
Lin
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
11
Adc Resolution (bits)
10
Adc Speed (ksps)
125
Analog Comparators
4
Resistive Touch Screen
No
Dac Channels
1
Dac Resolution (bits)
10
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
1
Eeprom (bytes)
512
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 150
I/o Supply Class
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
2
Output Compare Channels
14
Input Capture Channels
1
Pwm Channels
10
32khz Rtc
No
Calibrated Rc Oscillator
Yes
- AT90CAN128_AUTOMOTIVE PDF datasheet
- ATMEGA16M1_AUTOMOTIVE PDF datasheet #2
- ATMEGA16M1_AUTOMOTIVE PDF datasheet #3
- ATMEGA16M1_AUTOMOTIVE PDF datasheet #4
- Current page: 44 of 225
- Download datasheet (4Mb)
9.7
9.7.1
9.8
44
Internal Voltage Reference
Watchdog Timer
Atmel ATtiny24/44/84 [Preliminary]
Voltage Reference Enable Signals and Start-up Time
Figure 9-6.
The Atmel
Brown-out Detection, and it can be used as an input to the Analog Comparator or the ADC.
The voltage reference has a start-up time that may influence the way it should be used. The
start-up time is given in
the reference is not always turned on. The reference is on during the following situations:
1. When the BOD is enabled (by programming the BODLEVEL [2..0] Fuse).
2. When the bandgap reference is connected to the Analog Comparator (by setting the
3. When the ADC is enabled.
Thus, when the BOD is not enabled, after setting the ACBG bit or enabling the ADC, the user
must always allow the reference to start up before the output from the Analog Comparator or
ADC is used. To reduce power consumption in Power-down mode, the user can avoid the
three conditions above to ensure that the reference is turned off before entering Power-down
mode.
The Watchdog Timer is clocked from an On-chip Oscillator which runs at 128kHz. By control-
ling the Watchdog Timer prescaler, the Watchdog Reset interval can be adjusted as shown in
Table 9-4 on page
The Watchdog Timer is also reset when it is disabled and when a Chip Reset occurs. Ten dif-
ferent clock cycle periods can be selected to determine the reset period. If the reset period
expires without another Watchdog Reset, the Atmel ATtiny24/44/84 resets and executes from
the Reset Vector. For timing details on the Watchdog Reset, refer to
The Wathdog Timer can also be configured to generate an interrupt instead of a reset. This
can be very helpful when using the Watchdog to wake-up from Power-down.
ACBG bit in ACSR).
CC
®
ATtiny24/44/84 features an internal bandgap reference. This reference is used for
Watchdog Reset During Operation
48. The WDR – Watchdog Reset – instruction resets the Watchdog Timer.
“System and Reset Characterizations” on page
CK
Table 9-4 on page
181. To save power,
7701E–AVR–02/11
48.
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