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PDF MC14029B Data sheet ( Hoja de datos )
| Número de pieza | MC14029B | |
| Descripción | Binary/Decade Up/Down Counter | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Binary/Decade Up/Down
Counter
The MC14029B Binary/Decade up/down counter is constructed with MOS
P–channel and N–channel enhancement mode devices in a single
monolithic structure. The counter consists of type D flip–flop stages with a
gating structure to provide toggle flip–flop capability. The counter can be
used in either Binary or BCD operation. This complementary MOS counter
finds primary use in up/down and difference counting and frequency
synthesizer applications where low power dissipation and/or high noise
immunity is desired. It is also useful in A/D and D/A conversion and for
magnitude and sign generation.
• Diode Protection on All Inputs
• Supply Voltage Range = 3.0 Vdc to 18 Vdc
• Internally Synchronous for High Speed
• Logic Edge–Clocked Design — Count Occurs on Positive Going Edge
of Clock
• Asynchronous Preset Enable Operation
• Capable of Driving Two Low–power TTL Loads or One Low–power
Schottky TTL Load Over the Rated Temperature Range
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎΕ Pin for Pin Replacement for CD4029B
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎMAXIMUM RATINGS* (Voltages Referenced to VSS)
Symbol
Parameter
Value
Unit
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎVDD
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎVin, Vout
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎlin, lout
DC Supply Voltage
Input or Output Voltage (DC or Transient)
Input or Output Current (DC or Transient),
per Pin
– 0.5 to + 18.0
– 0.5 to VDD + 0.5
± 10
V
V
mA
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎPD Power Dissipation, per Package†
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎTstg Storage Temperature
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎTL Lead Temperature(8–SecondSoldering)
500
– 65 to + 150
260
mW
_C
_C
* Maximum Ratings are those values beyond which damage to the device may occur.
†Temperature Derating:
Plastic “P and D/DW” Packages: – 7.0 mW/_C From 65_C To 125_C
Ceramic “L” Packages: – 12 mW/_C From 100_C To 125_C
TRUTH TABLE
Carry In
Up/Down
Preset
Enable
1X 0
01 0
00 0
X
X = Don’t Care
X
1
Action
No Count
Count Up
Count Down
Preset
MC14029B
L SUFFIX
CERAMIC
CASE 620
P SUFFIX
PLASTIC
CASE 648
D SUFFIX
SOIC
CASE 751B
ORDERING INFORMATION
MC14XXXBCP
MC14XXXBCL
MC14XXXBD
Plastic
Ceramic
SOIC
TA = – 55° to 125°C for all packages.
PIN ASSIGNMENT
PE 1
Q3 2
16 VDD
15 CLK
P3 3
P0 4
Cin 5
Q0 6
Cout 7
VSS 8
14 Q2
13 P2
12 P1
11 Q1
10 U/D
9 B/D
REV 3
1/94
©MMCot1or4o0la2, I9nBc. 1995
120
MOTOROLA CMOS LOGIC DATA
1 page  
TIMING DIAGRAM
CLOCK
CARRY IN
UP/DOWN
BINARY/DECADE
PE
P0
P1
P2
P3
Q0
Q1
Q2
Q3
CARRY OUT
COUNT 0 1 2 3 4 5 6 7 8 9 8 7 6 5 4 3 2 1 0 0 9 6 7 0
Cout
U/D
B/D
P3
Q3 Q2 Q1 Q0
MC14029B Cin
MSD PE
P2 P1 P0 CLK
INPUT
CLOCK
“1” VDD
Cout
U/D
B/D
P3
Q3 Q2 Q1 Q0
MC14029B
Cin
PE
P2 P1 P0 CLK
“2” VDD
Cout
U/D
B/D
P3
Q3 Q2 Q1 Q0
MC14029B Cin
LSD PE
P2 P1 P0 CLK
“3” VDDVDD
CLOCK
Cout 1 (LSD)
Cout 2
Cout 3 (MSD)
PE
COUNT
^* tW 900 ns @ VDD = 5 V
Figure 3. Divide by N BCD Down Counter and Timing Diagram
(Shown for N = 123)
OUTPUT
MC14029B
124
MOTOROLA CMOS LOGIC DATA
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet MC14029B.PDF ] | |
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