Datasheet

312
7810C–AVR–10/12
Atmel ATmega328P [Preliminary]
Figure 28-5. 2-wire Serial Bus Timing
28.9 ADC Characteristics
28.10 Parallel Programming Characteristics
t
SU;STA
t
LOW
t
HIGH
t
LOW
t
of
t
HD;STA
t
HD;DAT
t
SU;DAT
t
SU;STO
t
BUF
SCL
SDA
t
r
Table 28-8. ADC Characteristics
Symbol Parameter Condition Min Typ Max Units
Resolution -40°c +125°c / 2.70 - 5.50V
ADC clock = 200kHz
10 bits
TUE Absolute accuracy Vcc = 4.0v, VRef = 4.0v 2.2 3.5 LSB
INL Integral Non Linearity Vcc = 4.0v, VRef = 4.0v 0.6 1.5 LSB
DNL Differential Non Linearity Vcc = 4.0v, VRef = 4.0v 0.3 0.7 LSB
Gain error Vcc = 4.0v, VRef = 4.0v -3.5 3.5 LSB
Offset error Vcc = 4.0v, VRef = 4.0v -3.5 3.5 LSB
Clock frequency 50 200 kHz
AVcc Analog Supply Voltage Vcc –0.3 Vcc +0.3 V
VRef Reference Voltage 1.0 AVcc V
Vin Input Voltage GND VRef V
Vint Internal Voltage Reference Vcc = 5v 1.0 1.1 1.2 V
Rref Reference Input resistance 22.4 32 41.6 kΩ
Rain Analog input resistance 100 MΩ
Table 28-9. Parallel Programming Characteristics, V
CC
= 5V ± 10%
Symbol Parameter Min Typ Max Units
V
PP
Programming Enable Voltage 11.5 12.5 V
I
PP
Programming Enable Current 250 µA
t
DVXH
Data and Control Valid before XTAL1 High 67 ns
t
XLXH
XTAL1 Low to XTAL1 High 200 ns
t
XHXL
XTAL1 Pulse Width High 150 ns
t
XLDX
Data and Control Hold after XTAL1 Low 67 ns
t
XLWL
XTAL1 Low to WR Low 0 ns
t
XLPH
XTAL1 Low to PAGEL high 0 ns
t
PLXH
PAGEL low to XTAL1 high 150 ns
t
BVPH
BS1 Valid before PAGEL High 67 ns