MOTOROLA CMOS LOGIC DATAMC14032B MC14038B
128
The MC14032B and MC14038B triple serial adders have the clock and
carry reset inputs common to all three adders. The carry is added on the
positive–going clock transition f or the MC14032B, and on the negative–
going clock transition for the MC14038B. Typical applications include serial
arithmetic units, digital correlators, digital servo control systems, datalink
computers, and flight control computers.
• Buffered Outputs
• Single–Phase Clocking
• Supply Voltage Range = 3.0 Vdc to 18 Vdc
• 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 CD4032B and CD4038B.
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.
LOGIC DIAGRAMS
(ONE SECTION AND COMMON INPUTS SHOWN)
B
A
INVERT
CARRY
RESET
CLOCK
TO
NEXT
STAGE
TO
NEXT
STAGE
B
A
INVERT
CARRY
RESET
CLOCK
DRQ
C
D Q
C
S S
DRQ
C
D Q
C
MC14032B MC14038B
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
BLOCK DIAGRAM
CARRY RESET 6
CLOCK 3
INVERT 3 2
B3 14
A3 15
ADDER 3 1 S3
VDD = PIN 16
VSS = PIN 8
INVERT 2 5
B2 12
A2 13
ADDER 2 4 S2
INVERT 1 7
B1 11
A1 10
ADDER 1 9 S1
MOTOROLA CMOS LOGIC DATA
129
MC14032B MC14038B
ELECTRICAL CHARACTERISTICS (Voltages Referenced to V
SS
)
“1” Level
Vin = 0 or V
DD
“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 = 0.5 or 4.5 Vdc)
(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 = (0.96 µA/kHz) f + I
DD
IT = (1.93 µA/kHz) f + I
DD
IT = (2.80 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 = 0.003.
PIN ASSIGNMENT
13
14
15
16
9
10
11
125
4
3
2
1
8
7
6
B2
A2
B3
A3
V
DD
S1
A1
B1
S2
C
INV 3
S3
V
SS
INV 1
CARRY
RESET
INV 2
Output Voltage
Input Voltage
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)
MOTOROLA CMOS LOGIC DATAMC14032B MC14038B
130
SWITCHING CHARACTERISTICS* (C
L
= 50 pF, TA = 25_C)
Output Rise and Fall Time
t
TLH
, t
THL
= (1.5 ns/pF) CL + 25 ns
t
TLH
, t
THL
= (0.75 ns/pF) CL + 12.5 ns
t
TLH
, t
THL
= (0.55 ns/pF) CL + 9.5 ns
Clock Rise and Fall Times
µs
*The formulas given are for the typical characteristics only at 25_C.
#Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
TIMING DIAGRAMS
MC14032B MC14038B
A
B
C
INV
CR
S
WORD 1 + WORD 2 WORD 3 + WORD 4
TRUE SUM COMPLEMENTED
SUM
WORD 1:
WORD 2:
0.0111100
0.0110010==
+60
+50
0.1101110 = +110
WORD 3:
WORD 4:
1.1011011
1.1001110==
–37
–50
1.0101001 = –87
WORD 1:
WORD 2:
1.1000011
1.1001101==
–61
–51
1.0010000 = –112
WORD 3:
WORD 4:
0.0100100
0.0110001==
+36
+49
0.1010101 = +85
TRUE SUM COMPLEMENTED
SUM
WORD 1 + WORD 2 WORD 3 + WORD 4
A
B
C
INV
CR
S
NOTE: Unused input pins must be connected to either VDD or VSS.
Propagation Delay Time
A, B or Invert to Sum
t
, t
PLH
t
PLH
t
PLH
= (1.7 ns/pF) CL + 195 ns
PHL
, t
= (0.66 ns/pF) CL + 87 ns
PHL
, t
= (0.5 ns/pF) CL + 65 ns
PHL
t
PLH
t
PHL
,
Clock to Sum
t
, t
PLH
t
PLH
t
PLH
= (1.7 ns/pF) CL + 415 ns
PHL
, t
= (0.66 ns/pF) CL + 147 ns
PHL
, t
= (0.5 ns/pF) CL + 110 ns
PHL