October 1987
Revised January 1999
CD4512BC
8-Channel Buffered Data Selector
General Description
The CD4512BC buffered 8-channel data selector is a complementary MOS (CMOS) circuit constructed with N- and P-channel enhancement mode transistors. This data selector is primarily used as a digital signal multiplexer selecting 1 of 8 inputs and routing the signal to a 3-STATE output. A high level at the Inhibit input forces a low level at the out-
put. A high level at the Output Enable (OE) input forces the output into the 3-STATE condition. Low levels at both the Inhibit and (OE) inputs allow normal operation.
Features
■Wide supply voltage range: 3.0V to 15V
■High noise immunity: 0.45 VDD (typ.)
■3-STATE output
■Low quiescent power dissipation:
0.25μW/package (typ.) @ VCC = 5.0V
■Plug-in replacement for Motorola MC14512
Ordering Code:
Order Number |
Package Number |
Package Description |
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CD4512BCM |
M16A |
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow Body |
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CD4512BCN |
N16E |
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide |
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Devices also available in Tape and Reel. Specify by appending suffix “X” to the ordering code.
Connection Diagram |
Truth Table |
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Pin Assignments for SOIC and DIP |
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Address Inputs |
Control Inputs |
Output |
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C |
B |
A |
Inhibit |
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Z |
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OE |
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0 |
0 |
0 |
0 |
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0 |
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X0 |
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0 |
0 |
1 |
0 |
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0 |
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X1 |
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0 |
1 |
0 |
0 |
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0 |
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X2 |
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0 |
1 |
1 |
0 |
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0 |
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X3 |
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1 |
0 |
0 |
0 |
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0 |
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X4 |
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1 |
0 |
1 |
0 |
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0 |
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X5 |
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1 |
1 |
0 |
0 |
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0 |
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X6 |
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1 |
1 |
1 |
0 |
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0 |
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X7 |
Top View |
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2 |
1 |
1 |
1 |
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0 |
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0 |
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2 |
2 |
2 |
2 |
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1 |
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Hi-Z |
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2 = Don't care
Hi-Z = 3-STATE condition Xn = Data at input n
Selector Data Buffered Channel-8 CD4512BC
© 1999 Fairchild Semiconductor Corporation |
DS005993.prf |
www.fairchildsemi.com |
CD4512BC
Logic Diagram
www.fairchildsemi.com |
2 |
Absolute Maximum Ratings(Note 1)
(Note 2) |
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Supply Voltage (VDD) |
−0.5 to +18 |
VDC |
Input Voltage (VIN) |
−0.5 to VDD + 0.5 |
VDC |
Storage Temperature Range (TS) |
−65°C to +150°C |
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Power Dissipation (P D) |
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Dual-In-Line |
700 mW |
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Small Outline |
500 mW |
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Lead Temperature, (TL) |
260°C |
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(Soldering, 10 seconds) |
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DC Electrical Characteristics (Note 2)
Recommended Operating
Conditions (Note 2)
DC Supply Voltage (V DD) |
3.0 to 15 VDC |
Input Voltage (VIN) |
0 to VDD VDC |
Operating Temperature Range (TA) |
−40°C to +85°C |
Note 1: “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices should be operated at these limits. The Recommended Operating Conditions and Electrical Characteristics table provide conditions for actual device operation.
Note 2: VSS = 0V unless otherwise specified.
Symbol |
Parameter |
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Conditions |
−40°C |
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+25°C |
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+85°C |
Units |
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Min |
Max |
Min |
Typ |
Max |
Min |
Max |
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IDD |
Quiescent Device |
VDD = 5V, VIN = VDD or VSS |
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20 |
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0.005 |
20 |
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150 |
μA |
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Current |
VDD = 10V, VIN = VDD or VSS |
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40 |
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0.010 |
40 |
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300 |
μA |
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VDD = 15V, VIN = VDD or VSS |
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80 |
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0.015 |
80 |
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600 |
μA |
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VOL |
LOW Level |
VDD = 5V |
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0.05 |
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0 |
0.05 |
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0.05 |
V |
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Output Voltage |
VDD = 10V |
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|IOL| < 1 μA |
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0.05 |
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0 |
0.05 |
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0.05 |
V |
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VDD = 15V |
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0.05 |
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0 |
0.05 |
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0.05 |
V |
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VOH |
HIGH Level |
VDD = 5V |
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4.95 |
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4.95 |
5.0 |
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4.95 |
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V |
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Output Voltage |
VDD = 10V |
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|I OH| < 1 μA |
9.95 |
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9.95 |
10.0 |
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9.95 |
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V |
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VDD = 15V |
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14.95 |
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14.95 |
15.0 |
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14.95 |
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V |
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VIL |
LOW Level |
VDD = 5V, VO = 0.5V |
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1.5 |
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2.25 |
1.5 |
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1.5 |
V |
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Input Voltage |
VDD = 10V, VO = 1.0V |
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3.0 |
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4.50 |
3.0 |
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3.0 |
V |
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VDD = 15V, VO = 1.5V |
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4.0 |
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6.75 |
4.0 |
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4.0 |
V |
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VIH |
HIGH Level |
VDD = 5V, VO = 4.5V |
3.5 |
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3.5 |
2.75 |
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3.5 |
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V |
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Input Voltage |
VDD = 10V, VO = 9.0V |
7.0 |
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7.0 |
5.50 |
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7.0 |
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V |
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VDD = 15V, VO = 13.5V |
11.0 |
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11.0 |
8.25 |
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11.0 |
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V |
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IOL |
LOW Level Output |
VDD = 5V, VO = 0.4V |
0.52 |
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0.44 |
0.78 |
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0.36 |
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mA |
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Current |
VDD = 10V, VO = 0.5V |
1.3 |
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1.1 |
2.0 |
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0.9 |
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mA |
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(Note 3) |
VDD = 15V, VO = 1.5V |
3.6 |
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3.4 |
7.8 |
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2.4 |
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mA |
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IOH |
HIGH Level Output |
VDD = 5V, VO = 4.6V |
−0.2 |
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−0.16 |
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−0.12 |
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mA |
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Current |
VDD = 10V, VO = 9.5 |
−0.5 |
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−0.4 |
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−0.3 |
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mA |
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(Note 3) |
VDD = 15V, V O = 13.5V |
−1.4 |
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−1.2 |
−10−5 |
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−1.0 |
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mA |
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I |
Input Current |
V |
DD |
= 15V, V |
IN |
= 0V |
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−0.3 |
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−0.3 |
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−1.0 |
μA |
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IN |
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= 15V, V |
= 15V |
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10−5 |
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μA |
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V |
DD |
IN |
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0.3 |
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0.3 |
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1.0 |
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= 15V, V |
= 0V |
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±1.0 |
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±10 −5 |
±1.0 |
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±7.5 |
μA |
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I |
3-STATE |
V |
DD |
O |
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OZ |
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Output Current |
VDD = 15V, VO = 15V |
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Note 3: IOH and IOL are tested one output at a time.
CD4512BC
3 |
www.fairchildsemi.com |
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