ATmega16HVB Atmel Corporation, ATmega16HVB Datasheet - Page 232

• Manufacturer Part Number: ATmega16HVB
• 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

32.13 2-wire serial interface characteristics
Table 32-15. Two-wire serial bus requirements.
Notes:
232
Symbol
V
V
V
tr
tof
tSP
I
C
f
Rp
t
t
t
t
t
t
t
t
i
SCL
HD;STA
LOW
HIGH
SU;STA
HD;DAT
SU;DAT
SU;STO
BUF
OL
(1)
IL
IH
i
(1)
(1)
(1)
(1)
1. In ATmega16HVB/32HVB, this parameter is characterized and not tested.
2. C
3. f
4. This requirement applies to all ATmega16HVB/32HVB Two-wire Serial Interface operation. Other devices connected to the
ATmega16HVB/32HVB
Two-wire Serial Bus need only obey the general f
Parameter
Input low-voltage
Input high-voltage
Output low-voltage
Rise time for both SDA and SCL
Output fall time from V
Spikes suppressed by input filter
Input current each I/O pin
Capacitance for each I/O pin
SCL clock frequency
Value of pull-up resistor
Hold time (repeated) START condition
Low period of the SCL clock
High period of the SCL clock
Set-up time for a repeated START condition
Data hold time
Data setup time
Setup time for STOP condition
Bus free time between a STOP and START
condition
CK
b
= capacitance of one bus line in pF.
= CPU clock frequency.
Table 32-15
Atmel ATmega16HVB/32HVB Two-wire Serial Interface meets or exceeds these requirements
under the noted conditions.
Timing symbols refer to
IHmin
to V
describes the requirements for devices connected to the Two-wire Serial Bus. The
ILmax
Figure 32-1 on page
f
CK
SCL
(3)
0.1V
requirement.
350µA sink current
> max(16f
C
BUS
f
f
f
f
f
f
f
f
f
SCL
SCL
SCL
SCL
SCL
SCL
SCL
SCL
b
SCL
Condition
< 400pF
< V
≤100kHz
≤100kHz
≤100kHz
≤100kHz
≤100kHz
≤100kHz
≤100kHz
≤100kHz
≤100Hz
i
SCL
< 0.9V
, 450Hz)
233.
(2)
BUS
(4)
V
------------------------------ -
Minimum
BUS
350µA
-0.5
250
2.1
4.0
4.7
4.0
4.7
0.3
4.0
4.7
-5
0
0
–
0
–
0.4V
V
------------------------------ -
Maximum
BUS
100µA
3.45
300
250
100
0.8
5.5
0.4
50
10
5
–
–
–
–
–
–
–
–
0.4V
8042D–AVR–10/11
Units
kHz
µA
pF
ns
µs
V
Ω