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PDF AT16244G-20XC Data sheet ( Hoja de datos )
| Número de pieza | AT16244G-20XC | |
| Descripción | AT16244 Fast Logic 16-Bit Buffer/Line Driver | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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AT16244
Features
• Fastest Propagation Speeds in the Industry TPD (F grade) = 2.5 ns, TPD (G grade) = 2.0 ns
• Maximum derating for capacitive loads 1.5ns/100 pF (F grade) and 1.1 ns/100 pF
(G grade)
• Very low ground bounce < 0.6V @ VCC=5.00 V, Ta=25°C
Excellent noise rejection
•• Typical output skew ≤0.25ns
• Bus Hold circuitry to retain last active state during Tri-State™
• Available in SSOP and TSSOP packages
Description
Atmel’s Fast Logic 16-Bit Buffer/Line driver provides bus interface and signal buffering
at the fastest speeds available in the industry. The Tri-state outputs can be set for
either 4-bit, 8-bit, or 16-bit independent operation. The AT16244 also has bus-hold
circuitry which retains the last state of the input whenever a high impedance level is
detected, and eliminates the need for pull-up or pull-down resistors. Minimal ground
bounce and high input noise rejection make this device excellent for use in all high
speed interface applications.
Functional Block Diagram (1)
AT16244
Fast Logic™
16-Bit
Buffer/Line
Driver
AT16244F
AT16244G
Note: 1. The function shown is repeated 3 additional times on each device.
Pin Configurations
Pin Names Descriptions
xOE
Output Enable Input
(Active Low)
xAχ Data Inputs
xYχ Tri-State Outputs
1OE 1Y1
1Y2 GND
1Y3 1Y4
VCC 2Y1
2Y2
GND
2Y3
2Y4
3Y1
3Y2
GND
3Y3
3Y4
VCC
4Y1
GND
4Y4
4Y2
4Y3
4OE
SSOP/TSSOP
12
34
56
78
9 10
11 12
13
14
15
16
17
18
19
20
21
22
23
24
48 47
46 45
44 43
42 41
40 39
38 37
36
35
34
33
32
31
30
29
28
27
26
25
1A1 2OE
GND 1A2
1A4 1A3
2A1 VCC
GND 2A2
2A4 2A3
3A1
3A2
GND
3A3
3A4
VCC
4A1
4A2
GND
4A3
4A4
3OE
Top View
0755B
5-3
1 page  
Propagation Delay Waveforms
Input
Transition
Output
Transition
1.5 V
tPLH
1.5 V
tPHL
AT16244
Enable and Disable Waveforms
Enable
Control
Input
Output
Switched
Low
tPZL
Switch Closed
1.5 V
Output
Switched
High
tPZH
Switch Open
1.5 V
Disable
tPLZ
0.3 V
tPHZ
0.3 V
VOH
1.5 V
VOL
3.0 V
1.5 V
0V
3.5 V
VOL
VOH
0V
5-7
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet AT16244G-20XC.PDF ] | |
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