ATMEGA16HVA-4CKU Atmel, ATMEGA16HVA-4CKU Datasheet - Page 120
![MCU AVR 16K FLASH 4MHZ 36-LGA](/photos/12/32/123221/36ck1-lga_sml.jpg)
ATMEGA16HVA-4CKU
Manufacturer Part Number
ATMEGA16HVA-4CKU
Description
MCU AVR 16K FLASH 4MHZ 36-LGA
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA16HVA-4CKU.pdf
(196 pages)
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
- Current page: 120 of 196
- Download datasheet (3Mb)
22. Voltage Regulator
22.1
22.2
120
Features
Overview
ATmega8HVA/16HVA
•
•
•
•
The Voltage Regulator is a Combined Step-up and Linear Voltage Regulator. This allows the
same Voltage Regulator module to be used efficiently for a large range of input voltages.
A built in Charge-pump with external capacitors is combined with a linear regulator to keep a
constant output voltage for input voltages in the range 1.8 - 9.0V.
Figure 22-1 on page 121
for combined Step-up and Linear mode.
VREG as a function of the input voltage VFET for 1-cell operation. When the VFET is sufficiently
high, the regulator switches automatically to linear operation. When VFET drops below a certain
level the regulator automatically switch back to step-up regulation. The different reset sources
during initialisation and shut down is also shown.
Figure 22-3 on page 122
for Linear mode only, intended for 2-cell applications. In Linear mode only, the input voltage
range is 3.6 - 9.0V. In this case, no external fly capacitors are needed, and CF1N should be
grounded.
In case of battery pack shortening, the voltage at the input of the regulator will drop quickly. If it
drops below minimum operating voltage, the voltage regulator can no longer supply internal or
external circuitry. However, the output voltage will not be pulled down by this incident, and the
external CREG capacitor can supply the circuitry for a time given by the size of the capacitor and
the total current consumption during the same period. VREG must stay above the Brown-Out
Threshold to avoid BOD reset. If a battery pack short occurs when VREG is equal to 3.3V and
the BOD level is 2.9V, the chip can continue operation for a time given by:
where I
I
has occured, allowing SW to minimize I
When charging deeply over-discharged cells, the FET Driver will be operated in Deep Under-
Voltage Recovery (DUVR) mode. See “FET Driver” on page 136. In this mode a suitable voltage
drop is developed across the Charge FET to ensure proper operating voltage at the VFET pin.
This will ensure normal operation of the chip during 0-volt charging without setting the charger in
quick-charge mode before the cell has reached a safe cell voltage.
AVG
3.3V fixed output voltage
Automatic selection of Step-up or Linear Regulation depending on VFET voltage.
Fixed Linear Regulation mode can be selected for 2-cell applications
Battery Pack Short mode allowing large voltage drop at VFET without pulling VREG low.
= 100 µA, this time equals 8.8 ms. The Voltage Regulator Monitor will detect if a short-circuit
AVG
Figure 22-4 on page 122
represents the average current drawn from CREG. For CREG = 2.2 µF and
shows the Voltage Regulator block diagram with external components
shows the Voltage Regulator block diagram with external components
illustrates this operation.
t
=
AVG
----------- -
I
cΔv
AVG
Figure 22-2 on page 121
.
=
CREG 0.4V
---------------------------------
I
AVG
⋅
shows the regulated voltage
8024A–AVR–04/08
Related parts for ATMEGA16HVA-4CKU
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![ATSTK600](/photos/9/20/92038/atstk600_tmb.jpg)
Part Number:
Description:
DEV KIT FOR AVR/AVR32
Manufacturer:
Atmel
Datasheet:
![U641B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
![U4082B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
![U4089B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
![U4255BM-M](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
![U4089B-P](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
![TDA4470](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet:
![ATF22V10B-25PC](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
High-performance EE PLD
Manufacturer:
ATMEL Corporation
Datasheet:
![AT89C51ED2-IM](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
8-bit Flash Microcontroller
Manufacturer:
ATMEL Corporation
Datasheet:
![AT24C01](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
2-Wire Serial EEPROM
Manufacturer:
ATMEL Corporation
Datasheet: