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MC14557BDWR2G

更新时间： 2024-01-19 18:34:54
品牌 Logo 应用领域
安森美 - ONSEMI 移位寄存器触发器逻辑集成电路光电二极管
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The MC14557B is a static clocked serial shift register whose length  
may be programmed to be any number of bits between 1 and 64. The  
number of bits selected is equal to the sum of the subscripts of the  
enabled Length Control inputs (L1, L2, L4, L8, L16, and L32) plus  
one. Serial data may be selected from the A or B data inputs with the  
A/B select input. This feature is useful for recirculation purposes. A  
Clock Enable (CE) input is provided to allow gating of the clock or  
negative edge clocking capability.  
http://onsemi.com  
MARKING  
DIAGRAMS  
16  
The device can be effectively used for variable digital delay lines or  
simply to implement odd length shift registers.  
PDIP–16  
P SUFFIX  
CASE 648  
MC14557BCP  
AWLYYWW  
• 1–64 Bit Programmable Length  
• Q and Q Serial Buffered Outputs  
• Asynchronous Master Reset  
1
16  
• All Inputs Buffered  
14557B  
• No Limit On Clock Rise and Fall Times  
• Supply Voltage Range = 3.0 Vdc to 18 Vdc  
SOIC–16  
DW SUFFIX  
CASE 751G  
• Capable of Driving Two Low–power TTL Loads or one Low–power  
AWLYYWW  
Schottky TTL Load Over the Rated Temperature Range  
1
16  
SOEIAJ–16  
F SUFFIX  
CASE 966  
MAXIMUM RATINGS (Voltages Referenced to V ) (Note 2.)  
SS  
MC14557B  
AWLYWW  
Symbol  
Parameter  
Value  
Unit  
V
V
DD  
DC Supply Voltage Range  
–0.5 to +18.0  
1
V , V  
Input or Output Voltage Range  
(DC or Transient)  
–0.5 to V + 0.5  
V
in out  
DD  
A
= Assembly Location  
WL or L = Wafer Lot  
YY or Y = Year  
WW or W = Work Week  
I , I  
in out  
Input or Output Current  
(DC or Transient) per Pin  
±10  
mA  
P
D
Power Dissipation,  
500  
mW  
per Package (Note 3.)  
ORDERING INFORMATION  
T
Ambient Temperature Range  
Storage Temperature Range  
–55 to +125  
–65 to +150  
260  
°C  
°C  
°C  
A
Device  
Package  
PDIP–16  
SOIC–16  
Shipping  
T
stg  
MC14557BCP  
MC14557BDW  
2000/Box  
47/Rail  
T
Lead Temperature  
L
(8–Second Soldering)  
2. Maximum Ratings are those values beyond which damage to the device  
may occur.  
3. Temperature Derating:  
MC14557BDWR2  
MC14557BF  
SOIC–16 1000/Tape & Reel  
SOEIAJ–16  
SOEIAJ–16  
See Note 1.  
See Note 1.  
Plastic “P and D/DW” Packages: – 7.0 mW/ C From 65 C To 125 C  
MC14557BFEL  
This device contains protection circuitry to guard against damage due to high  
static voltages or electric fields. However, precautions must be taken to avoid  
applications of any voltage higher than maximum rated voltages to this  
1. For ordering information on the EIAJ version of  
the SOIC packages, please contact your local  
ON Semiconductor representative.  
high–impedancecircuit. For proper operation, V and V should be constrained  
in  
out  
to the range V  
(V or V  
)
V
DD  
.
SS  
in  
out  
Unused inputs must always be tied to an appropriate logic voltage level (e.g.,  
either V or V ). Unused outputs must be left open.  
SS  
DD  
Semiconductor Components Industries, LLC, 2000  
1
Publication Order Number:  
March, 2000 – Rev. 3  
MC14557B/D  
12345678

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