ATmega16HVB Atmel Corporation, ATmega16HVB Datasheet - Page 265
ATmega16HVB
Manufacturer Part Number
ATmega16HVB
Description
Manufacturer
Atmel Corporation
Specifications of ATmega16HVB
Flash (kbytes)
16 Kbytes
Pin Count
44
Max. Operating Frequency
8 MHz
Cpu
8-bit AVR
# Of Touch Channels
8
Hardware Qtouch Acquisition
No
Max I/o Pins
17
Ext Interrupts
15
Usb Speed
No
Usb Interface
No
Spi
1
Twi (i2c)
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
12
Adc Speed (ksps)
1.9
Resistive Touch Screen
No
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 85
I/o Supply Class
4.0 to 25
Operating Voltage (vcc)
4.0 to 25
Fpu
No
Mpu / Mmu
no / no
Timers
2
Output Compare Channels
4
Input Capture Channels
2
32khz Rtc
No
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATmega16HVB-8X3
Manufacturer:
LT
Quantity:
51
Part Number:
ATmega16HVB-8X3
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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38. Errata
38.1
38.1.1
38.1.2
38.1.3
38.2
38.2.1
38.2.2
8042D–AVR–10/11
The Atmel ATmega16HVB
The Atmel ATmega32HVB
Rev. B
Rev. A
All revisions
Rev. A
All revisions
Stack pointer initial value
The stack pointer in ATmega16HVB is incorrectly initialized to 0x08ff instead of 0x04ff.
Not sampled.
TWI bus can get stuck if TWI STOP condition bit is set in slave mode
If the TWSTO bit in TWCR is set while the TWI starts to receive data in slave mode, it can result
in pulling the SCL pin low and then the TWI bus will get stuck. To release the SCL pin and get
out of this situation the TWI module needs to be disabled and then re-enabled.
While in slave mode the TWSTO bit should be written only to recover from an error condition and
then cleared before a data transfer starts.
Not sampled.
TWI bus can get stuck if TWI STOP condition bit is set in slave mode
If the TWSTO bit in TWCR is set while the TWI starts to receive data in slave mode, it can result
in pulling the SCL pin low and then the TWI bus will get stuck. To release the SCL pin and get
out of this situation the TWI module needs to be disabled and then re-enabled.
While in slave mode the TWSTO bit should be written only to recover from an error condition and
then cleared before a data transfer starts.
Problem fix/workaround
Initialize the stack pointer in software before the stack is used. Most C-compilers does initial-
ize the stack pointer without manual intervention.
Assembly Code Example:
ldi r16,high(RAMEND) ; Main program start out SPH,r16 ; Set Stack Pointer to top of RAM
ldi r16,low(RAMEND) out SPL,r16 C Code Example (if required): SP = RAMEND;
Problem fix/workaround
Problem fix/workaround
ATmega16HVB/32HVB
265
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