ATMEGA16HVA-4CKU Atmel, ATMEGA16HVA-4CKU Datasheet - Page 129

• Manufacturer Part Number: ATMEGA16HVA-4CKU
• Description: MCU AVR 16K FLASH 4MHZ 36-LGA
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA16HVA-4CKU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: SPI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 7
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 9 V
• Data Converters: A/D 5x12b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 36-LGA
• Processor Series: ATMEGA16x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: SPI
• Maximum Clock Frequency: 4 MHz
• Number Of Programmable I/os: 6
• Number Of Timers: 2
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATAVRSB200, ATAVRSB201
• Minimum Operating Temperature: - 20 C
• On-chip Adc: 12 bit, 5 Channel
• For Use With: ATSTK600 - DEV KIT FOR AVR/AVR32ATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

23.9.4
8024A–AVR–04/08
BPOCTR – Battery Protection Over-current Timing Register
Table 23-2.
Notes:
Note:
• Bit 7:6 – Res: Reserved Bits
These bits are reserved and will always read as zero.
• Bit 5:0 – OCPT5:0: 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
Table 23-3.
Notes:
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.
1. The actual value depends on the actual frequency of the
2. Initial value.
3. An additional delay T
page
the protection circuit. With nomial ULP frequency this delay is maximum 86 µs.
page
the initialization of the protection circuitry. For the Discharge Over-Current protection, this
Short-circuit Protection Reaction Time. SCPT[6:0] with corresponding Short-cir-
cuit Delay Time.
Over-current Protection Reaction Time. OCPT[5:0] with corresponding Over-cur-
rent Delay Time.
26. See
26. See
R
7
–
0
OCPT[5:0]
0x02
0x7E
0x7F
0x3E
0x00
0x01
0x03
0x3F
...
...
”Electrical Characteristics” on page
”Electrical Characteristics” on page
(2)
R
6
–
0
Short-circuit Protection Reaction Time
Over-current Protection Reaction Time
d
d
can be expected after enabling the Discharge FET due to initialization of
can be expected after enabling the corresponding FET. This is related to
R/W
5
0
Table 23-3 on page
R/W
4
0
R/W
3
0
OCPT[5:0]
ATmega8HVA/16HVA
165.
165.
129.
R/W
(7.83 - 7.88 ms) + T
(7.89 - 7.95 ms) + T
(30.5 - 31.0 ms) + T
(31.0 - 31.5 ms) + T
”Ultra Low Power RC Oscillator” on
2
0
”Ultra Low Power RC Oscillator” on
(0.0 - 0.5 ms) + T
(0.0 - 0.5 ms) + T
(0.5 - 1.0 ms) + T
(1.0 - 1.5 ms) + T
(1)
(1)
Typ
R/W
...
...
1
1
d
d
d
d
(3)
(3)
(3)
(3)
d
d
R/W
d
d
(3)
(3)
(3)
(3)
0
0
BPOCTR
129