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부품번호 | AT16245F 기능 |
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기능 | AT16245 Fast Logic Bi-Directional Transceiver | ||
제조업체 | ATMEL Corporation | ||
로고 | |||
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
IOL Pull Down Current
160
120
80
40
0
-40
Time
Ground Bounce for High to Low
Transitions(1)
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
4.0
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)
4.5
4
3.5
VOHV
3
2.5
2
1.5
1
0.5
0
VOHP
vcc -
measured on
output with
input held
constant
output
Time
Typical Values
Parameter
Value
Units
Note:
VOLP
0.4
V
VOLV
-0.26
V
VOHV
VCC - 0.13
V
VOHP
VCC + 0.6
V
1. When multiple outputs are switched at the same time, rapidly changing current on the ground and VCC paths cause a voltage to
develop across the parasitic inductance of the wire bond and package pins. This occurrence is called simultaneous
switching noise. Atmel’s AT16245 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.
5-12 AT16245
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
AT16245F | AT16245 Fast Logic Bi-Directional Transceiver | ATMEL Corporation |
AT16245F-25XC | AT16245 Fast Logic Bi-Directional Transceiver | ATMEL Corporation |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |