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AT16244F-25YC 데이터시트 PDF




ATMEL Corporation에서 제조한 전자 부품 AT16244F-25YC은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 AT16244F-25YC 기능
기능 AT16244 Fast Logic 16-Bit Buffer/Line Driver
제조업체 ATMEL Corporation
로고 ATMEL Corporation 로고


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AT16244F-25YC 데이터시트, 핀배열, 회로
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




AT16244F-25YC pdf, 반도체, 판매, 대치품
IOL Pull Down Current
160
120
80
40
0
-40
Ground Bounce for
High to Low Transitions(1)
Time
4.0
3.5 IOL
3.0 Output, V
2.5
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
Supply Bounce for
Low to High Transitions(2)
3.5
gnd - measured on
3.0 output with input
held constant
2.5
2.0 output
1.5
1.0
0.5 VOLP
0.0
VOLV
-0.5 Time
4.5
4
3.5
VOHV
3
2.5
2
1.5
1
0.5
0
VOHP
Time
vcc -
measured on
output with
input held
constant
output
Typical Values
Parameter
Value
Units
VOLP
0.4
V
VOLV
-0.26
V
VOHV
VCC - 0.13
V
Note:
VOHP
VCC + 0.6
V
1. When multiple outputs are switched at the same time, rapidly changing current on the ground and VCC paths causes a
voltage to develop across the parasitic inductance of the wire bond and package pins. This occurrence is called
simultaneous switching noise. Atmel’s AT16244 products have minimized this phenomenon as shown on the graph.
Output data is for 15 outputs switching simultaneously at a frequency of 1 MHz. The ground data is measured on the one
remaining output, which is set to logic low and will reflect any device ground movement.
2. As on the graph for Ground Bounce, a similar condition occurs for low to high transitions. Output data is for 15 outputs
switching simultaneously at a frequency of 1 MHz. VCC droop is measured on the one remaining output pin, which is set
to a logic high. This output will reflect any movement on the device VCC.
5-6 AT16244

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관련 데이터시트

부품번호상세설명 및 기능제조사
AT16244F-25YC

AT16244 Fast Logic 16-Bit Buffer/Line Driver

ATMEL Corporation
ATMEL Corporation

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