ATmega16HVB Atmel Corporation, ATmega16HVB Datasheet - Page 139

• 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

24.7.3
24.7.4
8042D–AVR–10/11
BPSCTR – Battery Protection Short-current Timing Register
BPOCTR – Battery Protection Over-current Timing Register
• Bit 7 – Reserved
This bit is reserved in the Atmel ATmega16HVB/32HVB and will always read as zero.
• Bit 6:0 – SCPT[6:0]: Short-current Protection Timing
These bits control the delay of the Short-circuit Protection. The Short-circuit Timing can be set
with a step size of 62.5µs as shown in
Table 24-2.
Notes:
Note:
• Bit 7:6 – Reserved
These bits are reserved in the ATmega16HVB/32HVB and will always read as zero.
• Bit 5:0 – OCPT[5:0]: Over-current Protection Timing
These bits control the delay of the Over-circuit Protection. The Over-current Timing can be set
with a step size of 0.5 ms as shown in
Bit
(0xFA)
Read/Write
Initial Value
Bit
(0xFB)
Read/Write
Initial Value
1. The actual value depends on the actual frequency of the
2. Initial value: SCPT[0x10](1ms).
3. An additional delay T
Due to synchronization of parameters between clock domains, a guard time of 3 ULP oscillator
cycles + 3 CPU clock cycles is required between each time the BPSCTR register is written. Any
writing to the BPSCTR register during this period will be ignored.
page
the protection circuit. With nomial ULP frequency this delay is maximum 86µs.
Short-circuit Protection Reaction Time. SCPT[6:0] with corresponding Short-cir-
cuit Delay Time.
27. See
R
R
7
–
0
7
–
0
SCPT[6:0]
0x7E
0x7F
0x00
0x01
0x02
0x03
...
”Electrical characteristics” on page
R/W
R
6
0
6
–
0
Short-circuit Protection Reaction Time
(2)
d
can be expected after enabling the Discharge FET due to initialization of
R/W
R/W
5
0
5
0
Table
Table 24-3 on page
R/W
R/W
4
1
4
0
24-2.
SCPT[6:0]
ATmega16HVB/32HVB
R/W
R/W
3
0
3
0
OCPT[5:0]
225.
140.
(140.5µs - 195.5µs) + T
(78.0µs - 133.0µs) + T
(7.83ms - 7.88ms) + T
(7.89ms - 7.95ms) + T
(15.5µs - 70.5µs) + T
(15.5µs - 70.5µs) + T
R/W
R/W
2
0
”Ultra Low Power RC oscillator” on
2
0
(1)
Typ
R/W
R/W
...
1
0
1
1
R/W
R/W
d
d
0
0
d
d
d
0
0
(3)
(3)
d
(3)
(3)
(3)
(3)
BPSCTR
BPOCTR
139