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- 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 20 V
- Maximum input current of 1 µA at 18 V over full package temperature range; 100 nA at 18 V and 25°C
- Noise margin (full package-temperature range):
0.5 V at VDD = 5 V
1.5 V at VDD = 10 V
1.5 V at VDD = 15 V - 5-V, 10-V, and 15-V parametric ratings
- Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of 'B' Series CMOS Devices"
CD4532 - 8 Bit Priority Encoder IC
The CD4x Series CD4532 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 EI is low. When EI is high, the binary representation of the highest-priority 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.
The CD4532 types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line plastic packages (E suffix), 16-lead small-outline packages (M, M96, MT, and NSR suffixes), and 16-lead thin shrink small-outline packages (PW and PWR suffixes).
Pinout:
Applications:
- Priority encoder
- Binary or BCD encoder (keyboard encoding)
- Floating-point arithmetic
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Shipping & Returns
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Package Includes:
Selected qty of IC - CD4532
Specifications:
| Part number | CD4532B |
| Technology Family | CD4000 |
| VCC (Min) (V) | 3 |
| VCC (Max) (V) | 18 |
| Channels (#) | 1 |
| Voltage (Nom) (V) | 5, 10, 15 |
| F @ nom voltage (Max) (MHz) | 8 |
| ICC @ nom voltage (Max) (mA) | 0.3 |
| tpd @ nom Voltage (Max) (ns) | 110 |
| IOL (Max) (mA) | 1.5 |
| IOH (Max) (mA) | -1.5 |
| Function | Encoder |
| Type | Standard |
| Operating temperature range (C) | -55 to 125 |
| Package Group | PDIP|16 |
| Configuration | 08:04 |
| Bits (#) | 8 |
| Digital input leakage (Max (uA) | 5 |
| ESD CDM (kV) | 0.75 |
| ESD HBM (kV) | 2 |
1.What is CD4532 IC?
- The CD4532 is made up of combinational logic that converts the highest priority input (D7-D0) to a three-bit binary code. Each of the eight inputs, D7 through D0, has a priority assigned to it; D7 has the highest priority and D0 has the lowest. When no priority inputs are present, the enable-out (EO) is high. If any of the inputs is high, EO is set to zero, and all cascaded lower-order stages are disabled.
