The MC14076B 4–Bit Register consists of four D–type flip–flops
operating synchronously from a common clock. OR gated
output–disable inputs force the outputs into a high–impedance state
for use in bus organized systems. OR gated data–disable inputs cause
the Q outputs to be fed back to the D inputs of the flip–flops. Thus they
are inhibited from changing state while the clocking process remains
undisturbed. An asynchronous master root is provided to clear all four
flip–flops simultaneously independent of the clock or disable inputs.
• Three–State Outputs with Gated Control Lines
• Fully Independent Clock Allows Unrestricted Operation for the T wo
Modes: Parallel Load and Do Nothing
• Asynchronous Master Reset
• Four Bus Buffer Registers
• Supply Voltage Range = 3.0 Vdc to 18 Vdc
• Capable of Driving T wo Low–Power TTL Loads or One Low–Power
Schottky TTL Load Over the Rated T emperature Range
MAXIMUM RATINGS (Voltages Referenced to V
SymbolParameterValueUnit
V
DD
Vin, V
Iin, I
P
T
T
stg
T
1. Maximum Ratings are those values beyond which damage to the device
may occur.
2. Temperature Derating:
Plastic “P and D/DW” Packages: – 7.0 mW/_C From 65_C To 125_C
DC Supply Voltage Range–0.5 to +18.0V
Input or Output Voltage Range
out
out
D
A
L
(DC or Transient)
Input or Output Current
(DC or Transient) per Pin
Power Dissipation,
per Package (Note 2.)
Ambient Temperature Range–55 to +125°C
Storage Temperature Range–65 to +150°C
Lead Temperature
(8–Second Soldering)
) (Note 1.)
SS
–0.5 to VDD + 0.5V
±10mA
500mW
260°C
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MARKING
DIAGRAMS
16
PDIP–16
P SUFFIX
CASE 648
SOIC–16
D SUFFIX
CASE 751B
A= Assembly Location
WL or L = Wafer Lot
YY or Y = Year
WW or W = Work Week
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, V
to the range V
Unused inputs must always be tied to an appropriate logic voltage level (e.g.,
either V
SS
Semiconductor Components Industries, LLC, 2000
March, 2000 – Rev . 3
v (Vin or V
SS
or VDD). Unused outputs must be left open.
) v VDD.
out
and V
in
should be constrained
out
1Publication Order Number:
MC14076B/D
Page 2
MC14076B
Data
Output
PIN ASSIGNMENT
OUTPUT
DISABLE
15
14
13
12
11
10
1
A
{
2
B
Q0
3
4
Q1
Q2
Q3
6
7
C
8
V
SS
BLOCK DIAGRAM
RESET
D0
D1
D2
D3
DATA
B
DISABLE
A
9
7
CLOCK
OUTPUT
B
2
1
A
DISABLE
V
16
DD
R
15
D0
14
D1
13
D2
125
11
D3
10
B
DATA
}
DISABLE
9
A
Q0
3
4
Q1
5
Q2
Q3
6
= PIN 16
V
DD
V
= PIN 8
SS
FUNCTION TABLE
Inputs
Data Disable
ResetClock
1XXXX0
00XXXQ
01XXQ
0X1XQ
00000
00011
When either output disable A or B (or both) is (are) high the
output is disabled to the high–impedance state; however
sequential operation of the flip–flops is not affected.
X = Don’t Care.
AB
DataOutput
D
Q
n
n
n
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2
Page 3
MC14076B
V
DD
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ELECTRICAL CHARACTERISTICS (Voltages Referenced to V
V
Characteristic
Output Voltage“0” Level
= VDD or 0
V
in
ОООООООО
“1” Level
V
= 0 or V
ОООООООО
in
Input Voltage“0” Level
ОООООООО
(V
O
(V
ОООООООО
O
(V
O
ОООООООО
(V
O
(V
O
ОООООООО
(V
O
Output Drive Current
ОООООООО
(V
OH
(V
ОООООООО
OH
(V
OH
ОООООООО
(V
OH
DD
= 4.5 or 0.5 Vdc)
= 9.0 or 1.0 Vdc)
= 13.5 or 1.5 Vdc)
“1” Level
= 0.5 or 4.5 Vdc)
= 1.0 or 9.0 Vdc)
= 1.5 or 13.5 Vdc)
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.
5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.
ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes
without further notice to any products herein. SCILLC makes no warranty , representation or guarantee regarding the suitability of its products for any particular
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8
MC14076B/D
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