企业名:传奇电子(香港)有限公司
类型:贸易/代理/分销
电话:
0755-86037320
0755-26408281
手机:13902940701
13538050515
联系人:李生/Jessie
地址:广东深圳深圳市南山区创业路海王大厦A座9G
FEATURES:
• Eight timing ranges • Four modes
• RC controlled on-chip oscillator
• Power-On-Reset (POR)
• Reset input for delay abort
• Complementary outputs
• Delay-in-Progress Indicator output
• LS7213R (DIP), LS7213R-S (SOIC)
APPLICATIONS
Time delay relays for HVAC equipment and industrial controls.
DESCRIPTION
The LS7213R is a CMOS integrated circuit for generating pro-
grammable time-delays. The delay is initiated by a logic transition
at the Trigger input and the completion of the delay is marked by a
change of status at the Out1 and the Out2 outputs. Three inputs,
D1, D2 and D3 select 1-of-8 scale factors, s. The delay, td is related
to s by the expression, td = s/frc, where frc is the frequency at the
RC input produced by an internal oscillator. An external resistor-
capacitor pair connected to the RC pin controls the oscillator fre-
quency. There are four modes of operation selected by inputs A
and B. The operating modes are:
企业名:传奇电子(香港)有限公司
类型:贸易/代理/分销
电话:
0755-86037320
0755-26408281
手机:13902940701
13538050515
联系人:李生/Jessie
地址:广东深圳深圳市南山区创业路海王大厦A座9G
友情链接: 深圳市元东发电子有限公司