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PDF AT16245F-25YC Data sheet ( Hoja de datos )
| Número de pieza | AT16245F-25YC | |
| Descripción | AT16245 Fast Logic Bi-Directional Transceiver | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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AT16245
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/100pF (F grade) and
1.1ns/100pF (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 new family of high speed CMOS transceivers offers the best of all worlds to the
user requiring stability and ultra fast speeds. These transceivers, which can function as
two 8-bit devices or one 16-bit device, are capable of improving processing efficiency as
much as 6% by reducing the number of wait states required during memory access. In
addition, this family of parts has been designed to minimize ground bounce on the outputs
while rejecting input spikes of up to 1.8V and 1 ns wide. This combination of ultra high
speed and low noise is the next step in high speed performance.
Functional Block Diagram
AT16245
Fast Logic™
Bi-Directional
Transceiver
AT16245F
AT16245G
Pin Configurations
Pin Names
Descriptions
xOE Output Enable Input (Active Low)
xDIR
Direction Control Input
xAχ Side A Inputs or Tri-State Outputs
xBχ Side B Inputs or Tri-State Outputs
SSOP/TSSOP
1DIR 1B1
1B2 GND
1B3 1B4
VCC 1B5
1B6 GND
1B7 1B8
2B1
2B2
GND
2B3
2B4
VCC
2B5
2B6
GND
2B7
2B8
2DIR
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 1OE
GND 1A2
1A4 1A3
1A5 VCC
GND 1A6
1A7
1A8
2A1
2A2
GND
2A3
2A4
VCC
2A5
2A6
GND
2A7
2A8
2OE
Top View
0754B
5-9
1 page  
Propagation Delay Waveforms
Input
Transition
Output
Transition
1.5 V
tPLH
1.5 V
tPHL
Enable and Disable Waveforms(1)
Enable
Control
Input
Disable
Output
Switched
Low
tPZL
Switch Closed
1.5 V
tPLZ
Output
Switched
High
tPZH
Switch Open
1.5 V
tPHZ
Note: 1. Enable and disable waveforms are the same for both xOE and xDIR inputs.
AT16245
0.3 V
0.3 V
VOH
1.5 V
VOL
3.0 V
1.5 V
0V
3.5 V
VOL
VOH
0V
5-13
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet AT16245F-25YC.PDF ] | |
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