INTERSIL CD40182BMS

CD40182BMS
CMOS Look-Ahead Carry Generator
December 1992
Features
Description
• High Voltage Type (20V Rating)
The CD40182BMS is a high-speed look-ahead carry generator capable of anticipating a carry across four binary adders
or groups of adders. The CD40182BMS is cascadable to
perform full look-ahead across n-bit adders. Carry, propagate-carry, and generate-carry functions are provided as
enumerated in the terminal designation below.
• Generates High-Speed Carry Across Four Adders or
Adder Groups
• High-Speed Operation
- tPHL, tPLH =100 ns (typ) at VDD = 10V
• Cascadable for Fast Carries Over N Bits
• Designed for Use with CD40181BMS ALU
• 100% Tested for Quiescent Current at 20V
• 5V, 10V and 15V Parametric Ratings
• Standardized Symmetrical Output Characteristics
• Maximum Input Current of 1µA at 18V Over Full Package Temperature Range; 100nA at 18V and +25oC
• Noise Margin (Over Full Package/Temperature Range)
- 1V at VDD = 5V
- 2V at VDD = 10V
- 2.5V at VDD = 15V
• Meets All Requirements of JEDEC Tentative Standard
No. 13B, “Standard Specifications for Description of
‘B’ Series CMOS Devices”
The CD40182BMS, when used in conjuction with the
CD40181BMS arithmetic logic unit (ALU), provides full highspeed look-ahead carry capability for up to n-bit words. Each
CD40182BMS generates the look-ahead (anticipated carry)
across a group of four ALU’s. In addition, other
CD40182BMS’s may be employed to anticipate the carry
across sections of four look-ahead blocks up to n-bits. Carry
inputs and outputs of the CD40181BMS are active-high
logic, and carry-generate (G) and carry-propagate (P) outputs are active-low. Therefore the inputs and outputs of the
CD40182BMS are compatible.
The CD40182BMS is supplied in these 16-lead outline
packages:
Braze Seal DIP
Frit Seal DIP
Ceramic Flatpack
H4V
H1E
H6P
The CD40182BMS is similar to industry type MC14582.
Applications
• High-Speed Parallel Arithmetric Units
• Multi-Level Look-Ahead Carry Generation for Long
Word Lengths
Pinout
Functional Diagram
CD40182BMS
TOP VIEW
G1 1
16 VDD
P1 2
15 P2
G0 3
14 G2
P0 4
13 Cn
G3 5
12 Cn + x
P3 6
11 Cn + y
P 7
VSS 8
G
P
10 G
VDD = 16
VSS = 8
9 Cn + z
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999
7-1410
3
G0
1
G1
14
G2
5
G3
4
P0
2
P1
15
P2
6
P3
Cn 13
12
Cn + x
11
Cn + y
9
7
10
Cn + z
P
G
File Number
3362
Specifications CD40182BMS
Absolute Maximum Ratings
Reliability Information
DC Supply Voltage Range, (VDD) . . . . . . . . . . . . . . . -0.5V to +20V
(Voltage Referenced to VSS Terminals)
Input Voltage Range, All Inputs . . . . . . . . . . . . .-0.5V to VDD +0.5V
DC Input Current, Any One Input . . . . . . . . . . . . . . . . . . . . . . . .±10mA
Operating Temperature Range . . . . . . . . . . . . . . . . -55oC to +125oC
Package Types D, F, K, H
Storage Temperature Range (TSTG) . . . . . . . . . . . -65oC to +150oC
Lead Temperature (During Soldering) . . . . . . . . . . . . . . . . . +265oC
At Distance 1/16 ± 1/32 Inch (1.59mm ± 0.79mm) from case for
10s Maximum
Thermal Resistance
θja
θjc
Ceramic DIP and FRIT Package . . . . . 80oC/W
20oC/W
Flatpack Package . . . . . . . . . . . . . . . . 70oC/W
20oC/W
Maximum Package Power Dissipation (PD) at +125oC
For TA = -55oC to +100oC (Package Type D, F, K) . . . . . . 500mW
For TA = +100oC to +125oC (Package Type D, F, K). . . . . . Derate
Linearity at 12mW/oC to 200mW
Device Dissipation per Output Transistor . . . . . . . . . . . . . . . 100mW
For TA = Full Package Temperature Range (All Package Types)
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +175oC
TABLE 1. DC ELECTRICAL PERFORMANCE CHARACTERISTICS
PARAMETER
Supply Current
SYMBOL
IDD
CONDITIONS (NOTE 1)
VDD = 20V, VIN = VDD or GND
VDD = 18V, VIN = VDD or GND
Input Leakage Current
IIL
VIN = VDD or GND
VDD = 20V
VDD = 18V
Input Leakage Current
IIH
VIN = VDD or GND
VDD = 20V
VDD = 18V
Output Voltage
Output Voltage
VOL15
VOH15
VDD = 15V, No Load
VDD = 15V, No Load (Note 3)
LIMITS
GROUP A
SUBGROUPS
TEMPERATURE
MIN
MAX
UNITS
1
+25oC
-
10
µA
2
+125oC
-
1000
µA
3
-55oC
-
10
µA
1
+25oC
-100
-
nA
2
+125oC
-1000
-
nA
3
-55oC
-100
-
nA
1
+25oC
-
100
nA
2
+125oC
-
1000
nA
3
-55oC
-
100
nA
1, 2, 3
+25oC,
+125oC,
-55oC
-
50
mV
1, 2, 3
+25oC,
+125oC,
-55oC
14.95
-
V
Output Current (Sink)
IOL5
VDD = 5V, VOUT = 0.4V
1
+25oC
0.53
-
mA
Output Current (Sink)
IOL10
VDD = 10V, VOUT = 0.5V
1
+25oC
1.4
-
mA
1
+25oC
3.5
-
mA
1
+25oC
-
-0.53
mA
Output Current (Sink)
Output Current (Source)
IOL15
IOH5A
VDD = 15V, VOUT = 1.5V
VDD = 5V, VOUT = 4.6V
Output Current (Source)
IOH5B
VDD = 5V, VOUT = 2.5V
1
+25oC
-
-1.8
mA
Output Current (Source)
IOH10
VDD = 10V, VOUT = 9.5V
1
+25oC
-
-1.4
mA
1
+25oC
-
-3.5
mA
1
+25oC
-2.8
-0.7
V
VSS = 0V, IDD = 10µA
1
+25oC
0.7
2.8
V
VDD = 2.8V, VIN = VDD or GND
7
+25oC
VDD = 20V, VIN = VDD or GND
7
+25oC
VDD = 18V, VIN = VDD or GND
8A
+125oC
VDD = 3V, VIN = VDD or GND
8B
-55oC
Output Current (Source)
N Threshold Voltage
P Threshold Voltage
Functional
IOH15
VNTH
VPTH
F
VDD = 15V, VOUT = 13.5V
VDD = 10V, ISS = -10µA
VOH > VOL <
VDD/2 VDD/2
V
Input Voltage Low
(Note 2)
VIL
VDD = 5V, VOH > 4.5V, VOL < 0.5V
1, 2, 3
+25oC, +125oC, -55oC
-
1.5
V
Input Voltage High
(Note 2)
VIH
VDD = 5V, VOH > 4.5V, VOL < 0.5V
1, 2, 3
+25oC, +125oC, -55oC
3.5
-
V
Input Voltage Low
(Note 2)
VIL
VDD = 15V, VOH > 13.5V,
VOL < 1.5V
1, 2, 3
+25oC, +125oC, -55oC
-
4
V
Input Voltage High
(Note 2)
VIH
VDD = 15V, VOH > 13.5V,
VOL < 1.5V
1, 2, 3
+25oC, +125oC, -55oC
11
-
V
NOTES: 1. All voltages referenced to device GND, 100% testing being
implemented.
2. Go/No Go test with limits applied to inputs.
7-1411
3. For accuracy, voltage is measured differentially to VDD. Limit
is 0.050V max.
Specifications CD40182BMS
TABLE 2. AC ELECTRICAL PERFORMANCE CHARACTERISTICS
PARAMETER
SYMBOL
CONDITIONS (NOTES 1, 2)
Propagation Delay
P, G In to P, G Out and
Carry Outs
TPHL1
TPLH1
VDD = 5V, VIN = VDD or GND
Propagation Delay
Cn to Carry Outs
TPHL2
TPLH2
VDD = 5V, VIN = VDD or GND
Transition Time
TTHL
TTLH
GROUP A
SUBGROUPS TEMPERATURE
9
10, 11
9
10, 11
VDD = 5V, VIN = VDD or GND
+25oC
+125oC,
-55oC
+25oC
o
o
+125 C, -55 C
o
LIMITS
MIN
MAX
UNITS
-
400
ns
-
540
ns
-
480
ns
-
648
ns
9
+25 C
-
200
ns
10, 11
+125oC, -55oC
-
270
ns
NOTES:
1. CL = 50pF, RL = 200K, Input TR, TF < 20ns.
2. -55oC and +125oC limits guaranteed, 100% testing being implemented.
TABLE 3. ELECTRICAL PERFORMANCE CHARACTERISTICS
LIMITS
PARAMETER
Supply Current
SYMBOL
CONDITIONS
NOTES
TEMPERATURE
MIN
MAX
UNITS
IDD
VDD = 5V, VIN = VDD or GND
1, 2
-55oC, +25oC
-
5
µA
+125oC
-
150
µA
VDD = 10V, VIN = VDD or GND
VDD = 15V, VIN = VDD or GND
Output Voltage
VOL
VDD = 5V, No Load
1, 2
1, 2
1, 2
-55 C, +25 C
-
10
µA
+125oC
-
300
µA
o
o
-
10
µA
+125oC
-
600
µA
+25oC, +125oC,
-
50
mV
-55oC,
+25oC
-55oC
Output Voltage
VOL
VDD = 10V, No Load
1, 2
+25oC, +125oC,
-55oC
-
50
mV
Output Voltage
VOH
VDD = 5V, No Load
1, 2
+25oC, +125oC,
-55oC
4.95
-
V
Output Voltage
VOH
VDD = 10V, No Load
1, 2
+25oC, +125oC,
-55oC
9.95
-
V
Output Current (Sink)
IOL5
VDD = 5V, VOUT = 0.4V
1, 2
+125oC
0.36
-
mA
-55oC
0.64
-
mA
+125oC
0.9
-
mA
-55oC
1.6
-
mA
+125oC
2.4
-
mA
-55oC
4.2
-
mA
Output Current (Sink)
Output Current (Sink)
Output Current (Source)
Output Current (Source)
Output Current (Source)
Output Current (Source)
Input Voltage Low
IOL10
IOL15
IOH5A
IOH5B
IOH10
IOH15
VIL
VDD = 10V, VOUT = 0.5V
VDD = 15V, VOUT = 1.5V
VDD = 5V, VOUT = 4.6V
1, 2
1, 2
1, 2
VDD = 5V, VOUT = 2.5V
1, 2
VDD = 10V, VOUT = 9.5V
VDD =15V, VOUT = 13.5V
VDD = 10V, VOH > 9V, VOL < 1V
7-1412
1, 2
1, 2
1, 2
+125oC
-
-0.36
mA
-55oC
-
-0.64
mA
+125oC
-
-1.15
mA
-55oC
-
-2.0
mA
+125oC
-
-0.9
mA
-55oC
-
-1.6
mA
+125oC
-
-2.4
mA
-55oC
-
-4.2
mA
+25oC, +125oC,
-55oC
-
3
V
Specifications CD40182BMS
TABLE 3. ELECTRICAL PERFORMANCE CHARACTERISTICS (Continued)
LIMITS
PARAMETER
Input Voltage High
SYMBOL
VIH
CONDITIONS
VDD = 10V, VOH > 9V, VOL < 1V
NOTES
TEMPERATURE
MIN
MAX
UNITS
1, 2
+25oC, +125oC,
7
-
V
-55oC
1, 2, 3
+25oC
-
200
ns
VDD = 15V
1, 2, 3
+25o
C
-
150
ns
VDD = 10V
1, 2, 3
+25oC
-
240
ns
VDD = 15V
1, 2, 3
+25oC
-
180
ns
1, 2, 3
+25oC
-
100
ns
1, 2, 3
+25oC
-
80
ns
1, 2
+25oC
-
7.5
pF
Propagation Delay
P, G In to P, G Out and
Carry Outs
TPHL1
TPLH1
VDD = 10V
Propagation Delay
Cn to Carry Outs
TPHL2
TPLH2
Transition Time
Input Capacitance
TTHL
TTLH
VDD = 10V
VDD = 15V
CIN
Any Input
NOTES:
1. All voltages referenced to device GND.
2. The parameters listed on Table 3 are controlled via design or process and are not directly tested. These parameters are characterized on
initial design release and upon design changes which would affect these characteristics.
3. CL = 50pF, RL = 200K., Input TR, TF < 20ns.
TABLE 4. POST IRRADIATION ELECTRICAL PERFORMANCE CHARACTERISTICS
LIMITS
PARAMETER
Supply Current
SYMBOL
CONDITIONS
NOTES
TEMPERATURE
MIN
MAX
UNITS
IDD
VDD = 20V, VIN = VDD or GND
1, 4
+25oC
-
25
µA
o
-2.8
-0.2
V
o
N Threshold Voltage
VNTH
N Threshold Voltage
Delta
∆VTN
P Threshold Voltage
VTP
P Threshold Voltage
Delta
∆VTP
Functional
F
VDD = 10V, ISS = -10µA
1, 4
+25 C
VDD = 10V, ISS = -10µA
1, 4
+25 C
-
±1
V
VSS = 0V, IDD = 10µA
1, 4
+25oC
0.2
2.8
V
VSS = 0V, IDD = 10µA
VDD = 18V, VIN = VDD or GND
1, 4
+25 C
-
±1
V
1
+25oC
VOH >
VDD/2
VOL <
VDD/2
V
1, 2, 3, 4
+25oC
-
1.35 x
+25oC
Limit
ns
o
VDD = 3V, VIN = VDD or GND
Propagation Delay Time
TPHL
TPLH
VDD = 5V
3. See Table 2 for +25oC limit.
NOTES: 1. All voltages referenced to device GND.
2. CL = 50pF, RL = 200K, Input TR, TF < 20ns.
4. Read and Record
TABLE 5. BURN-IN AND LIFE TEST DELTA PARAMETERS +25oC
PARAMETER
SYMBOL
DELTA LIMIT
Supply Current - MSI-2
IDD
± 1.0µA
Output Current (Sink)
IOL5
± 20% x Pre-Test Reading
IOH5A
± 20% x Pre-Test Reading
Output Current (Source)
7-1413
Specifications CD40182BMS
TABLE 6. APPLICABLE SUBGROUPS
MIL-STD-883
METHOD
GROUP A SUBGROUPS
Initial Test (Pre Burn-In)
100% 5004
1, 7, 9
IDD, IOL5, IOH5A
Interim Test 1 (Post Burn-In)
100% 5004
1, 7, 9
IDD, IOL5, IOH5A
Interim Test 2 (Post Burn-In)
100% 5004
1, 7, 9
IDD, IOL5, IOH5A
100% 5004
1, 7, 9, Deltas
100% 5004
1, 7, 9
100% 5004
1, 7, 9, Deltas
CONFORMANCE GROUP
PDA (Note 1)
Interim Test 3 (Post Burn-In)
PDA (Note 1)
Final Test
Group B
IDD, IOL5, IOH5A
100% 5004
2, 3, 8A, 8B, 10, 11
Sample 5005
1, 2, 3, 7, 8A, 8B, 9, 10, 11
Subgroup B-5
Sample 5005
1, 2, 3, 7, 8A, 8B, 9, 10, 11, Deltas
Subgroup B-6
Sample 5005
1, 7, 9
Sample 5005
1, 2, 3, 8A, 8B, 9
Group A
Group D
READ AND RECORD
Subgroups 1, 2, 3, 9, 10, 11
Subgroups 1, 2 3
NOTE: 1. 5% Parameteric, 3% Functional; Cumulative for Static 1 and 2.
TABLE 7. TOTAL DOSE IRRADIATION
CONFORMANCE GROUPS
Group E Subgroup 2
TEST
READ AND RECORD
MIL-STD-883
METHOD
PRE-IRRAD
POST-IRRAD
PRE-IRRAD
POST-IRRAD
5005
1, 7, 9
Table 4
1, 9
Table 4
TABLE 8. BURN-IN AND IRRADIATION TEST CONNECTIONS
OSCILLATOR
FUNCTION
OPEN
GROUND
VDD
Static Burn-In 1
(Note 1)
7, 9 - 12
1 - 6, 8, 13 - 15
16
Static Burn-In 2
(Note 1)
7, 9 - 12
8
1 - 6, 13 - 16
Dynamic BurnIn (Note 1)
-
8
16
7, 9 - 12
8
1 - 6, 13 - 16
Irradiation
(Note 2)
9V ± -0.5V
50kHz
25kHz
7, 9 - 12
1 - 6, 14, 15
13
NOTES:
1. Each pin except VDD and GND will have a series resistor of 10K ± 5%, VDD = 18V ± 0.5V
2. Each pin except VDD and GND will have a series resistor of 47K ± 5%; Group E, Subgroup 2, sample size is 4 dice/wafer, 0 failures,
VDD = 10V ± 0.5V
TABLE 9. TERMINAL DESIGNATIONS
DESIGNATION
TERM.
G0, G1, G2, G3
3, 1, 14, 5
Active-Low
Carry-Generate
Inputs
P0, P1, P2, P3
4, 2, 15, 6
Active-Low
Carry-Propagate
Inputs
Cn
13
Cn + x, Cn + y, Cn + z
12, 11, 9
7-1414
FUNCTION
Active-High
Carry Input
Active-High
Carry Outputs
Specifications CD40182BMS
TABLE 9. TERMINAL DESIGNATIONS (Continued)
DESIGNATION
TERM.
FUNCTION
G
10
Active-Low
Group
Carry-Generate
Output
P
7
Active-Low
Group
Carry-Propagate
Output
Logic Diagram
P
7
G
P3
10
*
6
G3
*
5
Cn + z
P2
*
9
15
G2
*
14
P1
*
Cn + y
2
VDD
11
G1
*
1
P0
*
4
Cn + x
VSS
G0
*
12
3
*ALL INPUTS ARE
PROTECTED BY COS/MOS
PROTECTION NETWORK
Cn
*
13
FIGURE 1. CD40182BMS LOGIC DIAGRAM
CD40182BMS LOGIC EQUATIONS
Cn + x = G0 + P0 • Cn
Cn + y = G1 + P1 • G0 + P1 • P0 • Cn
Cn + z = G2 + P2 • G1 + P2 • P1 • G0 + P2 • P1 • P0 • Cn
G = G3 + P3 • G2 + P3 • P2 • G1 + P3 • P2 • P1 • G0
P = P3 • P2 • P1 • P0
7-1415
CD40182BMS
AMBIENT TEMPERATURE (TA) = +25oC
GATE-TO-SOURCE VOLTAGE (VGS) = 15V
25
20
15
10V
10
5
5V
0
5
10
15
DRAIN-TO-SOURCE VOLTAGE (VDS) (V)
GATE-TO-SOURCE VOLTAGE (VGS) = -5V
0
-5
-15
-20
-25
-15V
10.0
10V
7.5
5.0
2.5
5V
5
10
15
DRAIN-TO-SOURCE VOLTAGE (VDS) (V)
DRAIN-TO-SOURCE VOLTAGE (VDS) (V)
-15
-10
-5
0
-10
-10V
GATE-TO-SOURCE VOLTAGE (VGS) = 15V
12.5
FIGURE 3. MIMIMUM OUTPUT LOW (SINK) CURRENT
CHARACTERISTICS
-30
0
AMBIENT TEMPERATURE (TA) = +25oC
OUTPUT HIGH (SOURCE) CURRENT (IOH) (mA)
AMBIENT TEMPERATURE (TA) = +25oC
15.0
0
FIGURE 2. TYPICAL OUTPUT LOW (SINK) CURRENT
CHARACTERISTICS
DRAIN-TO-SOURCE VOLTAGE (VDS) (V)
-15
-10
-5
AMBIENT TEMPERATURE (TA) = +25oC
0
GATE-TO-SOURCE VOLTAGE (VGS) = -5V
-5
-10V
-15V
FIGURE 4. TYPICAL OUTPUT HIGH (SOURCE) CURRENT
CHARACTERISTICS
-10
-15
OUTPUT HIGH (SOURCE) CURRENT (IOH) (mA)
30
OUTPUT LOW (SINK) CURRENT (IOL) (mA)
OUTPUT LOW (SINK) CURRENT (IOL) (mA)
Typical Performance Characteristics
FIGURE 5. MINIMUM OUTPUT HIGH (SOURCE) CURRENT
CHARACTERISTICS
All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certification.
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate
and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which
may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see web site http://www.intersil.com
Sales Office Headquarters
NORTH AMERICA
Intersil Corporation
P. O. Box 883, Mail Stop 53-204
Melbourne, FL 32902
TEL: (321) 724-7000
FAX: (321) 724-7240
EUROPE
Intersil SA
Mercure Center
100, Rue de la Fusee
1130 Brussels, Belgium
TEL: (32) 2.724.2111
FAX: (32) 2.724.22.05
1416
ASIA
Intersil (Taiwan) Ltd.
Taiwan Limited
7F-6, No. 101 Fu Hsing North Road
Taipei, Taiwan
Republic of China
TEL: (886) 2 2716 9310
FAX: (886) 2 2715 3029
CD40182BMS
Typical Performance Characteristics
PROPAGATION DELAY TIME (tPHL, tPLH) (ns)
(Continued)
TRANSITION TIME (tTHL, tTLH) (ns)
AMBIENT TEMPERATURE (TA) = +25oC
200
150
SUPPLY VOLTAGE (VDD) = 5V
100
10V
15V
50
0
0
20
AMBIENT TEMPERATURE (TA) = +25oC
350
300
250
200
150
10V
100
20
30
40
50
60
70
80
90
FIGURE 7. TYPICAL PROPAGATION DELAY TIME AS A FUNCTION OF LOAD CAPACITANCE (P, G IN TO P, G
OUT AND CARRY-OUTS)
2
SUPPLY VOLTAGE (VDD) = 15V
8
6
4
104
2
8
6
4
103
10V
2
10V
8
6
4
102
5V
CL = 50pF
CL = 15pF
2
2
4
6 8
2
4
6 8
2
4
6 8
2
4
6 8
103
10
102
INPUT FREQUENCY (fI) (kHz)
1
104
FIGURE 8. TYPICAL POWER DISSIPATION AS A FUNCTION OF INPUT FREQUENCY
(4) CD40181BMS
CARRY
IN
Cn
Cn
G
P
G0
P0
Cn
Cn + x
100
LOAD CAPACITANCE (CL) (pF)
AMBIENT TEMPERATURE (TA) = +25oC
6
4
POWER DISSIPATION (PD) (µW)
10
0
FIGURE 6. TYPICAL TRANSITION TIME AS A FUNCTION OF
LOAD CAPACITANCE
105
15V
50
40
60
80
100
LOAD CAPACITANCE (CL) (pF)
106 8
SUPPLY VOLTAGE (VDD) = 5V
G
P
G1
P1
Cn
Cn + y
G
P
G2
P2 Cn + z
Cn
G
P
G3
P3
G
P
CD40182BMS
CARRY
OUT
LOOK-AHEAD
OUTPUTS
FIGURE 9. 16-BIT TWO-LEVEL LOOK-AHEAD ALU
7-1417
CD40182BMS
(16) CD40181BMS
Cn
G P
Cn
Cn
G P
G0 P0 Cn + x G1 P1
Cn
G P
Cn + y G2 P2
Cn
G P
Cn + z G3 P3
G P
Cn
Cn
G P
G0 P0 Cn + x G1 P1
Cn
Cn
G P
Cn + y G2 P2
Cn
G P
G0 P0
Cn + z G3 P3
Cn
Cn
CD40182BMS
CD40182BMS
G P
G0 P0
G P
G1 P1
Cn + x
Cn + y
Cn
CD40182BMS
FIGURE 10. 64-BIT FULL CARRY LOOK-AHEAD ALU IN 3 LEVELS
CD40181BMS
Cn Cn + 4
Cn Cn + 4
Cn
G P
Cn
G P
Cn
Cn Cn+4
G P
Cn+4
Cn
G0 P0 Cn + x G1 P1 Cn + y G2 P2 Cn + z G3 P3
Cn
Cn
G P
G0 P0 Cn + x
Cn
G P
G1 P1 Cn + y
Cn
CD40182BMS
CD40181BMS
G P
FIGURE 11. COMBINED TWO-LEVEL LOOK-AHEAD AND RIPPLE-CARRY ALU
Chip Dimensions and Pad Layout
METALLIZATION:
PASSIVATION:
BOND PADS:
Thickness: 11kÅ − 14kÅ,
AL.
10.4kÅ - 15.6kÅ, Silane
0.004 inches X 0.004 inches MIN
DIE THICKNESS: 0.0198 inches - 0.0218 inches
The photographs and dimensions of each CMOS chip represent a chip when
it is part of the wafer. When the wafer is separated into individual chips, the angle of cleavage may vary with respect to the chip face for different chips. The
actual dimensions of the isolated chip, therefore, may differ slightly from the
nominal dimensions shown. The user should consider a tolerance of -3 mils to
+16 mils applicable to the nominal dimensions shown.
Dimension in parenthesis are in millimeters and are derived from the basic inch
dimensions as indicated. Grid graduations are in mils (10-3 inch).
7-1418