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Part Name(s) : CD4532B CM532B CD4532BE CD4532BEE4 CD4532BF3A CD4532BM CD4532BM96 CD4532BM96E4 CD4532BMG4 CD4532BNSR CD4532BPWR Texas-Instruments
Texas Instruments
Description : CMOS 8-BIT PRIORITY ENCODER

CMOS 8-BIT PRIORITY ENCODER

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Part Name(s) : CD4532BMS Intersil
Intersil
Description : CMOS 8-BIT PRIORITY ENCODER

Description
CD4532BMS consists of combinational logic that encodes the highest PRIORITY input (D7 - D0) to a 3-bit binary code. The eight inputs, D7 through D0, each have an assigned PRIORITY; D7 is the highest PRIORITY and D0 is the lowest. The PRIORITY ENCODER is inhibited when the chip-enable input E1 is low. When E1 is high, the binary representation of the highestPRIORITY input appears on output lines Q2 - Q0, and the group select line GS is high to indicate that PRIORITY inputs are present. The enable-out (EO) is high when no PRIORITY inputs are present. If any one input is high, EO is low and all cascaded lower-order stages are disabled.

Features
• High Voltage Type (20V Rating)
• Converts From 1 of 8 to Binary
• Provides Cascading Feature to Handle Any Number of Inputs
• Group Select Indicates One or More PRIORITY Inputs
• Standardized Symmetrical Output Characteristics
• 100% Tested for Quiescent Current at 20V
• Maximum Input Current of 1µA at 18V Over Full Package Temperature Range; 100nA at 18V and +25oC
• Noise Margin (Over Full Package/Temperature Range)
    - 0.5V at VDD = 5V
    - 1.5V at VDD = 10V
    - 1.5V at VDD = 15V
• 5V, 10V and 15V Parametric Ratings
• Meets All Requirements of JEDEC Tentative Standard No. 13B, “Standard Specifications for Description of ‘B’ Series CMOS Devices”

Applications
PRIORITY ENCODER
• Binary or BCD ENCODER (Keyboard Encoding)
• Floating Point Arithmetic

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Part Name(s) : CD4532B CD4532BE CD4532BEE4 CD4532BF3A CD4532BM CD4532BM96 CD4532BM96E4 CD4532BM96G4 CD4532BME4 CD4532BMG4 CD4532BMT CD4532BMTE4 CD4532BMTG4 CD4532BNSR CD4532BNSRE4 CD4532BNSRG4 CD4532BPW CD4532BPWR CD4532BPWRE4 CD4532BPWRG4 CM532B CD4532BPWE4 CD4532BPWG4 TI
Texas Instruments
Description : CMOS 8-BIT PRIORITY ENCODER

CMOS 8-BIT PRIORITY ENCODER

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Part Name(s) : HD74HC149 Renesas
Renesas Electronics
Description : 8-to-8-line PRIORITY ENCODER

Description
The HD74HC149 is PRIORITY ENCODER which has 8 input lines (0 - 7) and 8 output lies (Y0 - Y7).
It is the logical combination of a HD74HC148 8-3 line PRIORITY ENCODER driving a HD74HC138 3-8 line decoder.
Only one request output can be low at a time. The output that is low is dependent on the highest PRIORITY request that is low. The order of PRIORITY is 7 highest and 0 lowest.

Features
• High Speed Operation: tpd (0 - 7 to Y) = 16 ns typ (CL = 50 pF)
• High Output Current: Fanout of 10 LSTTL Loads
• Wide Operating Voltage: VCC = 2 to 6 V
• Low Input Current: 1 µA max
• Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)

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Part Name(s) : HD74HC149 Hitachi
Hitachi -> Renesas Electronics
Description : 8-to-8-line PRIORITY ENCODER

Description
The HD74HC149 is PRIORITY ENCODER which has 8 input lines (0 - 7) and 8 output lies (Y0 - Y7).
It is the logical combination of a HD74HC148 8-3 line PRIORITY ENCODER driving a HD74HC138 3-8 line decoder.
Only one request output can be low at a time. The output that is low is dependent on the highest PRIORITY request that is low. The order of PRIORITY is 7 highest and 0 lowest.

Features
• High Speed Operation: tpd (0 - 7 to Y) = 16 ns typ (CL = 50 pF)
• High Output Current: Fanout of 10 LSTTL Loads
• Wide Operating Voltage: VCC = 2 to 6 V
• Low Input Current: 1 µA max
• Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)

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Part Name(s) : MC54F148 MC54F148J MC74F148 MC74F148D MC74F148N Motorola
Motorola => Freescale
Description : 8-line to 3-line PRIORITY ENCODER

8-LINE TO 3-LINE PRIORITY ENCODER FAST™ SHOTTKY TTL

The MC54/74F148 provides three bits of binary coded output representing the position of the highest order active input, along with an output indicating thepresence of anyactive input. It is easily expanded via input and output enables to provide PRIORITY encoding over many bits.


• Encodes Eight Data Lines in PRIORITY
• Provides 3-Bit Binary PRIORITY Code
• Input Enable Capability
• Signals When Data Present on Any Input
• Cascadable for PRIORITY Encoding of n Bits

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Part Name(s) : 74F148 N74F148D N74F148N Philips
Philips Electronics
Description : 8-input PRIORITY ENCODER

DESCRIPTION
The 74F148 8-input PRIORITY ENCODER accepts data from eight active-Low inputs and provides a binary representation on the three active-Low outputs. A PRIORITY is assigned to each input so that when two or more inputs are simultaneously active, the input with the highest PRIORITY is represented on the output, with input line I7 having the highest PRIORITY.

FEATURES
•Code conversions
•Multi-channel D/A converter
•Decimal-to-BCD converter
•Cascading for PRIORITY encoding of “N” bits
•Input enable capability
PRIORITY encoding-automatic selection of highest PRIORITY input line
•Output enable-active Low when all inputs are High
•Group signal output-active when any input is Low

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Part Name(s) : MC14532BF MC14532BFEL MC14532BFR1 MC14532BFR2 ON-Semiconductor
ON Semiconductor
Description : 8-BIT PRIORITY ENCODER

The MC14532B is constructed with complementary MOS (CMOS) enhancement mode devices. The primary function of a PRIORITY ENCODER is to provide a binary address for the active input with the
highest PRIORITY. Eight data inputs (D0 thru D7) and an enable input (Ein)are provided. Five outputs are available, three are address outputs (Q0 thru Q2), one group select (GS) and one enable output (Eout).


•Diode Protection on All Inputs
•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

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Part Name(s) : MC14532B MC14532BCL MC14532BCP MC14532BD MC14532BL MC14532BP Motorola
Motorola => Freescale
Description : 8-BIT PRIORITY ENCODER

TheMC14532B is constructed with complementary MOS(CMOS) enhancement mode devices. The primary function of a PRIORITY ENCODER is to providea binary address for the active input with the highest PRIORITY. Eight data inputs (D0 thru D7) and an enable input(Ein)are provided. Five outputs
are available, three are address outputs (Q0 thru Q2), one group select (GS) and one enable output (Eout).


• Diode Protection on All Inputs
• 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
 

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Part Name(s) : MC14532 MC14532B MC14532BCP MC14532BCPG MC14532BD MC14532BDG MC14532BDR2 MC14532BDR2G ON-Semiconductor
ON Semiconductor
Description : 8−Bit PRIORITY ENCODER

The MC14532B is constructed with complementary MOS (CMOS) enhancement mode devices. The primary function of a PRIORITY ENCODER is to provide a binary address for the active input with the
highest PRIORITY. Eight data inputs (D0 thru D7) and an enable input (Ein)are provided. Five outputs are available, three are address outputs (Q0 thru Q2), one group select (GS) and one enable output (Eout).


Features
•Diode Protection on All Inputs
•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
•Pb−Free Packages are Available*

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