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MC14553B Datasheet(PDF) 1 Page - ON Semiconductor

Part No. MC14553B
Description  3−Digit BCD Counter
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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MC14553B Datasheet(HTML) 1 Page - ON Semiconductor

   
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© Semiconductor Components Industries, LLC, 2006
June, 2006 − Rev. 7
1
Publication Order Number:
MC14553B/D
MC14553B
3−Digit BCD Counter
The MC14553B 3−digit BCD counter consists of 3 negative edge
triggered BCD counters that are cascaded synchronously. A quad latch
at the output of each counter permits storage of any given count. The
information is then time division multiplexed, providing one BCD
number or digit at a time. Digit select outputs provide display control.
All outputs are TTL compatible.
An on−chip oscillator provides the low−frequency scanning clock
which drives the multiplexer output selector.
This device is used in instrumentation counters, clock displays,
digital panel meters, and as a building block for general logic
applications.
Features
TTL Compatible Outputs
On−Chip Oscillator
Cascadable
Clock Disable Input
Pulse Shaping Permits Very Slow Rise Times on Input Clock
Output Latches
Master Reset
Pb−Free Packages are Available*
MAXIMUM RATINGS (Voltages Referenced to VSS)
Parameter
Symbol
Value
Unit
DC Supply Voltage Range
VDD
−0.5 to +18.0
V
Input or Output Voltage Range
(DC or Transient)
Vin,
Vout
−0.5 to VDD
+ 0.5
V
Input Current (DC or Transient) per Pin
Iin
±10
mA
Output Current (DC or Transient) per Pin
Iout
+20
mA
Power Dissipation, per Package (Note 1)
PD
500
mW
Ambient Temperature Range
TA
−55 to +125
°C
Storage Temperature Range
Tstg
−65 to +150
°C
Lead Temperature (8−Second Soldering)
TL
260
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum
Ratings are stress ratings only. Functional operation above the Recommended
Operating Conditions is not implied. Extended exposure to stresses above the
Recommended Operating Conditions may affect device reliability.
1. Temperature Derating: Plastic “P and D/DW”
Packages: – 7.0 mW/
_C From 65_C To 125_C
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
high−impedance circuit. For proper operation, Vin and Vout should be constrained to
the range VSS v (Vin or Vout) v VDD.
Unused inputs must always be tied to an appropriate logic voltage level
(e.g., either VSS or VDD). Unused outputs must be left open.
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
Device
Package
Shipping
ORDERING INFORMATION
MC14553BCP
PDIP−16
25 Units / Rail
MC14553BDW
SOIC−16
47 Units / Rail
http://onsemi.com
MC14553BCPG
PDIP−16
(Pb−Free)
25 Units / Rail
MARKING
DIAGRAMS
A
= Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G
= Pb−Free Package
1
SO−16W
DW SUFFIX
CASE 751G
16
1
MC14553B
AWLYYWW
Figure 1. Block Diagram
12
10
11
13
9
7
6
5
14
2
1
15
VDD = PIN 16
VSS = PIN 8
43
CLOCK
LE
DIS
MR
Q0
Q1
Q2
Q3
O.F.
DS1
DS2
DS3
CIA
CIB
PDIP−16
P SUFFIX
CASE 648
16
1
MC14553BCP
AWLYYWWG
1


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