MOTOROLA CMOS LOGIC DATA
81
MC14018B
The MC14018B c ontains five Johnson counter stages which are
asynchronously presettable and resettable. The counters are synchronous,
and increment on the positive going edge of the clock.
Presetting is accomplished by a logic 1 on the preset enable input. Data on
the J am inputs will then be transferred to their respective Q
outputs
(inverted). A logic 1 on the reset input will cause all Q
outputs to go to a logic
1 state.
Division by any number from 2 to 10 can be accomplished by connecting
appropriate Q
outputs to the data input, as shown in the Function Selection
table. Anti–lock gating is included in the MC14018B to assure proper
counting sequence.
• Fully Static Operation
• Schmitt Trigger on Clock Input
• Capable of Driving Two Low–power TTL Loads or One Low–power
Schottky TTL Load Over the Rated Temperature Range
• Pin–for–Pin Replacement for CD4018B
MAXIMUM RATINGS* (Voltages Referenced to V
SS
)
Input or Output Voltage (DC or Transient)
Input or Output Current (DC or Transient),
per Pin
Power Dissipation, per Package†
Lead Temperature (8–Second Soldering)
_
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
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
V
out
should be constrained to the range VSS ≤ (Vin or V
out
) ≤ 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.
SEMICONDUCTOR TECHNICAL DATA
Motorola, Inc. 1995
REV 3
1/94
L SUFFIX
CERAMIC
CASE 620
ORDERING INFORMATION
MC14XXXBCP Plastic
MC14XXXBCL Ceramic
MC14XXXBD SOIC
TA = – 55° to 125°C for all packages.
P SUFFIX
PLASTIC
CASE 648
D SUFFIX
SOIC
CASE 751B
PIN ASSIGNMENT
FUNCTIONAL TRUTH TABLE
Preset Jam
Clock Reset Enable Input Q
n
0 0 X Qn
0 0 X D
n
*
X 0 1 0 1
X 0 1 1 0
X 1 X X 1
*Dn is the Data input for that stage. Stage 1
has Data brought out to Pin 1.
13
14
15
16
9
10
11
125
4
3
2
1
8
7
6
JAM 5
Q
5
C
R
V
DD
JAM 4
PE
Q
4
Q
2
JAM 2
JAM 1
D
in
V
SS
JAM 3
Q
3
Q
1
MOTOROLA CMOS LOGIC DATAMC14018B
82
ELECTRICAL CHARACTERISTICS (Voltages Referenced to V
SS
)
“0” Level
(VO = 4.5 or 0.5 Vdc)
(VO = 9.0 or 1.0 Vdc)
(VO = 13.5 or 1.5 Vdc)
“1” Level
(VO = 1.0 or 9.0 Vdc)
(VO = 1.5 or 13.5 Vdc)
– 4.2
– 0.88
– 2.25
– 8.8
Input Capacitance
(Vin = 0)
Quiescent Current
(Per Package)
Total Supply Current**†
(Dynamic plus Quiescent,
Per Package)
(CL = 50 pF on all outputs, all
buffers switching)
IT = (0.3 µA/kHz) f + I
DD
IT = (0.7 µA/kHz) f + I
DD
IT = (1.0 µA/kHz) f + I
DD
µAdc
#Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
**The formulas given are for the typical characteristics only at 25_C.
†To calculate total supply current at loads other than 50 pF:
IT(CL) = IT(50 pF) + (CL – 50) Vfk
where: IT is in µA (per package), CL in pF, V = (VDD – VSS) in volts, f in kHz is input frequency, and k = 0.001.
Output Voltage
Vin = 0 or V
DD
Input Voltage
(VO = 0.5 or 4.5 Vdc)
Output Drive Current
(VOH = 2.5 Vdc) Source
(VOH = 4.6 Vdc)
(VOH = 9.5 Vdc)
(VOH = 13.5 Vdc)
(VOL = 0.4 Vdc) Sink
(VOL = 0.5 Vdc)
(VOL = 1.5 Vdc)