您的位置：维库电子市场网 > Datasheet > ADSP-2186M

ADSP-2186M Datasheet

  • ADSP-2186M

  • DSP Microcomputer

  • 597.15KB

  • 41页

  • AD

阅览下载 纠错 0

扫码查看芯片数据手册

上传产品规格书

PDF预览

ADSP-2186M
TEST CONDITIONS
Output Disable Time
Output Enable Time
Output pins are considered to be disabled when they have stopped
driving and started a transition from the measured output high
or low voltage to a high impedance state. The output disable
time (t
DIS
) is the difference of t
MEASURED
and t
DECAY
, as shown
in the Output Enable/Disable diagram. The time is the interval
from when a reference signal reaches a high or low voltage level
to when the output voltages have changed by 0.5 V from the
measured output high or low voltage.
The decay time, t
DECAY
, is dependent on the capacitive load,
C
L
, and the current load, i
L
, on the output pin. It can be
approximated by the following equation:
t
DECAY
=
C
L
脳
0.5
V
i
L
Output pins are considered to be enabled when they have made
a transition from a high-impedance state to when they start driving.
The output enable time (t
ENA
) is the interval from when a refer-
ence signal reaches a high or low voltage level to when the output
has reached a specified high or low trip point, as shown Figure
19. If multiple pins (such as the data bus) are enabled, the mea-
surement value is that of the first pin to start driving.
REFERENCE
SIGNAL
t
MEASURED
t
ENA
V
OH
(MEASURED)
OUTPUT
V
OL
(MEASURED) +0.5V
V
OL
(MEASURED)
t
DIS
V
OH
(MEASURED) 鈥?0.5V
2.0V
1.0V
V
OH
(MEASURED)
from which
t
DIS
=
t
MEASURED
鈥?/div>
t
DECAY
is calculated. If multiple pins (such as the data bus) are disabled,
the measurement value is that of the last pin to stop driving.
INPUT
t
DECAY
OUTPUT STOPS
DRIVING
OUTPUT
STARTS
DRIVING
V
OL
(MEASURED)
HIGH-IMPEDANCE STATE. TEST CONDITIONS CAUSE
THIS VOLTAGE LEVEL TO BE APPROXIMATELY 1.5V.
Figure 19. Output Enable/Disable
1.5V
I
OL
2.0V
1.5V
0.8V
TO
OUTPUT
PIN
50pF
OUTPUT
Figure 18. Voltage Reference Levels for AC Measure-
ments (Except Output Enable/Disable)
1.5V
I
OH
Figure 20. Equivalent Loading for AC Measurements
(Including All Fixtures)
鈥?2鈥?/div>
REV. 0

ADSP-2186M相关型号PDF文件下载

您可能感兴趣的PDF文件资料

热门IC型号推荐

©2025 维库电子市场网（www.dzsc.com）　备案号：浙B2-20050339-1 经营许可证：浙B2-20210386版权声明
买家服务热线：0571-85317607 | 买家服务部QQ： QQ:1609526468
卖家服务热线：0571-85317607 | 卖家服务部QQ： QQ:331652727

扫码下载APP，
一键连接广大的电子世界。

在线人工客服

买家服务：
卖家服务：
技术客服：

0571-85317607

网站技术支持

13606545031

客服在线时间周一至周五
9:00-17:30

关注官方微信号，
第一时间获取资讯。

建议反馈
返回顶部

建议反馈

联系人：

联系方式：

按住滑块，拖拽到最右边
>>
感谢您向阿库提出的宝贵意见，您的参与是维库提升服务的动力！意见一经采纳，将有感恩红包奉上哦！

PDF纠错X

投诉电话：0571-85317607 投诉QQ：

如选匿名将无法为您反馈投诉结果，建议实名投诉！