AT90USBKEY2 Atmel, AT90USBKEY2 Datasheet - Page 12

• Manufacturer Part Number: AT90USBKEY2
• Description: KIT DEMO FOR AT90USB
• Manufacturer: Atmel

Specifications of AT90USBKEY2

• Main Purpose: USB Controller
• Embedded: *
• Utilized Ic / Part: AT90USB1286, AT90USB1287, AT90USB646, AT90USB647
• Primary Attributes: *
• Secondary Attributes: *
• Supplier: Atmel
• Architecture: 8/16-bit
• Interfaces: USB
• For Use With: ATSTK525 - KIT STARTER FOR AT90USB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: AT90USBKEY; AT90USBKEY

7627A–AVR–04/06
Using the AT90USBKey
2.4.5
2-12
PB[7..0]
Data Flash memory
PE0
PB1
PB2
PB3
RESET
VCC3
R9
100k
1
2
3
4
Figure 2-8 . Thermistor Schematic
For mass-storage class demonstration purpose, the AT90USBKey provides two on-chip
serial Flash memories (AT45DB642D) connected to the AT90USB Serial Port Interface
(SPI).
The data-flash chip select signals are connected to PortE bit 0 and bit 1 of the AT90USB
(See Figure 2-9).
Figure 2-9 . On-board data flash schematic
AT45DB642D CASON8
Temp.
SI
SCK
RESET
CS
U2
(°C)
5
6
7
8
9
GND
VCC
WP
SO
278,995
250,134
236,981
224,606
264,119
8
7
6
5
(KΩ)
R
T
VCC3
Temp.
(°C)
35
36
37
38
39
R11
100k
PF[7..0]
62,937
60,188
57,576
55,093
52,732
(KΩ)
PE1
PB1
PB2
PB3
RESET
R
VCC3
T
R10
100k
VCC
Temp.
(°C)
65
66
67
68
69
R27
100k
R29
1
2
3
4
AT90USBKey Hardware User Guide
AT45DB642D CASON8
SI
SCK
RESET
CS
U3
18,493
17,820
17,174
16,556
15,964
(KΩ)
R
T
GND
VCC
WP
SO
8
7
6
5
Temp.
(°C)
95
96
97
98
99
VCC3
6,635
6,430
6,233
6,043
5,860
(KΩ)
R
R12
100k
T