ATMEGA644PV-10PQ Atmel, ATMEGA644PV-10PQ Datasheet - Page 333
![MCU AVR 64K FLASH 10MHZ 40-PDIP](/photos/6/70/67049/453-40-dip_sml.jpg)
ATMEGA644PV-10PQ
Manufacturer Part Number
ATMEGA644PV-10PQ
Description
MCU AVR 64K FLASH 10MHZ 40-PDIP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA644PV-10PQ
Core Processor
AVR
Core Size
8-Bit
Speed
10MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
64KB (32K x 16)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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25.7
Table 25-10
wire Serial Interface meets or exceeds these requirements under the noted conditions.
Timing symbols refer to
Table 25-10. 2-wire Serial Bus Requirements
8011O–AVR–07/10
Symbol
V
V
V
V
t
t
t
I
C
f
Rp
r
of
SP
i
SCL
(1)
IL
IH
hys
OL
i
(1)
(1)
(1)
(1)
(1)
2-wire Serial Interface Characteristics
Parameter
Input Low-voltage
Input High-voltage
Hysteresis of Schmitt Trigger Inputs
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
describes the requirements for devices connected to the 2-wire Serial Bus. The ATmega164P/324P/644P 2-
Figure
Figure 25-5. SPI Interface Timing Requirements (Slave Mode)
25-6.
(Data Output)
IHmin
(Data Input)
(CPOL = 0)
(CPOL = 1)
to V
MOSI
MISO
SCK
SCK
SS
ILmax
9
13
f
MSB
CK
MSB
(4)
14
10 pF < C
0.1V
> max(16f
3 mA sink current
f
f
SCL
SCL
CC
15
Condition
< V
≤ 100 kHz
> 100 kHz
b
< 400 pF
SCL
i
< 0.9V
, 250kHz)
CC
ATmega164P/324P/644P
...
...
(3)
(5)
20 + 0.1C
20 + 0.1C
V
----------------------------
V
----------------------------
0.05V
CC
CC
0.7V
3 mA
3 mA
11
-0.5
Min
-10
–
–
0
0
–
0
0.4V
0.4V
CC
CC
b
b
(2)
(2)(3)
(2)(3)
10
LSB
LSB
11
V
12
1000 ns
-------------------- -
0.3V
CC
300 ns
----------------- -
50
Max
300
250
400
0.4
C
10
10
C
16
–
+ 0.5
b
(2)
b
CC
X
17
Units
kHz
µA
pF
ns
Ω
V
333
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