AT43USB325E-AU Atmel, AT43USB325E-AU Datasheet - Page 3

• Manufacturer Part Number: AT43USB325E-AU
• Description: IC USB KEYBOARD CTRLR 64LQFP
• Manufacturer: Atmel
• Series: AVR®r

Specifications of AT43USB325E-AU

• Applications: Keyboard Controller
• Core Processor: AVR
• Program Memory Type: SRAM (16 kB)
• Controller Series: AT43USB
• Ram Size: 512 x 8
• Interface: SPI, 3-Wire Serial
• Number Of I /o: 42
• Voltage - Supply: 4.4 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1.2
3355C–USB–4/05
Pin#
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
2
3
4
5
6
7
8
9
Pin Assignment
PF2/SI/OC1B
PF3/SO/ICP
PD7/INTD
PD6/INTC
PD5/INTB
PD4/INTA
RESETN
CEXT1
Signal
VCC1
VSS1
TEST
DM0
DM2
DM3
DM4
DM5
PD3
PD1
PD0
DP0
DP2
DP3
DP4
DP5
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
Power Supply/Ground
Power Supply/Ground
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Output
Type
Input
Input
Pin#
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
PF1/SCK/OC1A
NC/SSN
CEXT2
Signal
XTAL1
XTAL2
VCC2
VSS2
PE7
PE6
PE5
PE4
PE3
PE2
PE1
PE0
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
LFT
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
AT43USB325
Power Supply/Ground
Power Supply/Ground
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Bi-directional
Output
Output
Output
Type
Input
3