AT90USB647-MU Atmel, AT90USB647-MU Datasheet - Page 380

• Manufacturer Part Number: AT90USB647-MU
• Description: MCU, 8BIT, 64K FLASH, USB, 64QFN
• Manufacturer: Atmel

Specifications of AT90USB647-MU

• Controller Family/series: AT90
• No. Of I/o's: 48
• Eeprom Memory Size: 2KB
• Ram Memory Size: 4KB
• Cpu Speed: 16MHz
• No. Of: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 64KB
• Oscillator Type: External, Internal
• Package: 64QFN EP
• Device Core: AVR
• Family Name: AT90
• Maximum Speed: 20 MHz
• Ram Size: 4 KB
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 48
• Interface Type: SPI/TWI/USART/USB
• On-chip Adc: 8-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 4
• Lead Free Status / Rohs Status: Details

29.7
380
Serial Downloading
AT90USB64/128
Note:
Table 29-13. Parallel Programming Characteristics, V
Notes:
Both the Flash and EEPROM memory arrays can be programmed using a serial programming
bus while RESET is pulled to GND. The serial programming interface consists of pins SCK, PDI
(input) and PDO (output). After RESET is set low, the Programming Enable instruction needs to
be executed first before program/erase operations can be executed. NOTE, in
page
dedicated for the internal Serial Peripheral Interface - SPI.
Symbol
V
I
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
PP
DVXH
XLXH
XHXL
XLDX
XLWL
XLPH
PLXH
BVPH
PHPL
PLBX
WLBX
PLWL
BVWL
WLWH
WLRL
WLRH
WLRH_CE
XLOL
BVDV
OLDV
OHDZ
PP
381, the pin mapping for serial programming is listed. Not all packages use the SPI pins
1. The timing requirements shown in
1. t
2. t
ing operation.
commands.
WLRH
WLRH_CE
Parameter
Programming Enable Voltage
Programming Enable Current
Data and Control Valid before XTAL1 High
XTAL1 Low to XTAL1 High
XTAL1 Pulse Width High
Data and Control Hold after XTAL1 Low
XTAL1 Low to WR Low
XTAL1 Low to PAGEL high
PAGEL low to XTAL1 high
BS1 Valid before PAGEL High
PAGEL Pulse Width High
BS1 Hold after PAGEL Low
BS2/1 Hold after WR Low
PAGEL Low to WR Low
BS2/1 Valid to WR Low
WR Pulse Width Low
WR Low to RDY/BSY Low
WR Low to RDY/BSY High
WR Low to RDY/BSY High for Chip Erase
XTAL1 Low to OE Low
BS1 Valid to DATA valid
OE Low to DATA Valid
OE High to DATA Tri-stated
is valid for the Write Flash, Write EEPROM, Write Fuse bits and Write Lock bits
is valid for the Chip Erase command.
(1)
Figure 29-7
(2)
(i.e., t
CC
= 5V ± 10%
DVXH
11.5
Min
200
150
150
150
150
3.7
7.5
67
67
67
67
67
67
67
0
0
0
0
0
, t
XHXL
Typ
, and t
Max
12.5
250
250
250
250
XLDX
4.5
1
9
) also apply to read-
Table 29-14 on
Units
ms
ms
7593K–AVR–11/09
μA
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
μs
ns
ns
ns
ns
V