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74148 - Priority Encoder

Download the 74148 datasheet PDF. This datasheet also covers the 74147 variant, as both devices belong to the same priority encoder family and are provided as variant models within a single manufacturer datasheet.

General Description

These TTL encoders feature priority decoding of the inputs to ensure that only the highest-order data line is encoded.

The ’147 and ’LS147 devices encode nine data lines to four-line (8-4-2-1) BCD.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (74147-etcTI.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
74148 8-3 Line Priority Encoder National Semiconductor
74148 PRIORITY ENCODERS Motorola
7414 Dual Gate/Hex Inverter ON Semiconductor
74141 1-of-10 Decoder/Driver National Semiconductor
74145N BCD-to-DECIMAL Decoders/Drivers ETC

Other Datasheets by Texas Instruments

Part Number Description
7414 Hex Schmitt-Trigger Inverter
74147 Priority Encoder
74109 Dual J-K Positive-Edge-Triggered Flip-Flops
74122 Retriggerable Monostable Multivibrators
74123 Retriggerable Monostable Multivibrators

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
SN54147, SN54148, SN54LS147, SN54LS148 SN74147, SN74148 (TIM9907), SN74LS147, SN74LS148 10ĆLINE TO 4ĆLINE AND 8ĆLINE TO 3ĆLINE PRIORITY ENCODERS SDLS053B − OCTOBER 1976 − REVISED MAY 2004 ’147, ’LS147 D Encode 10-Line Decimal to 4-Line BCD D Applications Include: − Keyboard Encoding − Range Selection SN54147, SN54LS147 . . . J OR W PACKAGE SN74147, SN74LS147 . . . D OR N PACKAGE (TOP VIEW) ’148, ’LS148 D Encode 8 Data Lines to 3-Line Binary (Octal) D Applications Include: − n-Bit Encoding − Code Converters and Generators SN54148, SN54LS148 . . . J OR W PACKAGE SN74148, SN74LS148 . . . D, N, OR NS PACKAGE (TOP VIEW) 4 5 6 7 8 C B GND 1 2 3 4 5 6 7 8 16 VCC 15 NC 14 D 13 3 12 2 11 1 10 9 9A 4 5 6 7 EI A2 A1 GND 1 2 3 4 5 6 7 8 16 VCC 15 E0 14 GS 13 3 12 2 11 1 10 0 9 A0 SN54LS147 .