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參數(shù)資料
| 型號： | AT16646G-20YC |
| 廠商： | ATMEL CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | AT16646 Fast Logic 16-Bit Tri-State Register |
| 中文描述： | DUAL 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO56 |
| 封裝： | PLASTIC, SSOP-56 |
| 文件頁數(shù)： | 4/6頁 |
| 文件大小： | 64K |
| 代理商： | AT16646G-20YC |
-40
0
40
80
120
160
Time
-1.0
-0.5
0.0
0.5
1.0
1.5
2.0
O
I
,
O
2.5
3.0
3.5
4.0
I
OL
Output, V
IOL Pull Down Current
3.5
Time
VOLV
VOLP
-0.5
0.0
0.5
1.0
1.5
2.0
2.5
3.0
V
gnd - measured on
output with input
held constant
output
Ground Bounce for
High to Low Transitions
(1)
VOHP
VOHV
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
Time
V
vcc -
measured on
output with
input held
constant
output
Supply Bounce for
Low to High Transitions
(2)
Parameter
V
OLP
V
OLV
Value
0.4
Units
V
-0.26
V
V
OHV
V
CC
- 0.13
V
V
OHP
V
CC
+ 0.6
V
Note:
1. When multiple outputs are switched at the same time, rapidly changing current on the ground and V
CC
path 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 AT16646 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. V
CC
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 V
CC
.
Typical Values
5-24
AT16646
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