CD40147B

The CD40147B CMOS encoder features priority encoding of the inputs to ensure that only the highest-order data line is encoded.Ten data input lines (0-9) are encoded to four-line(8, 4, 2, 1) BCD. The highest priority line is line 9.All four output lines are logic 1 (VSS) when all input lines are logic 0. All inputs and outputs are buffered, and each output can drive one TTL low-power Schottky load.The CD40147B is functionally similar to the TTL54/74147 if pin 15 is tied low.

Features of the CD40147B are:(1)encodes 10-line to 4-line BCD; (2)active  low  inputs and  outputs; (3)standardized, symmetrical output characteristic; (4)100% tested for quiescent current at 20 V; (5)5-V, 10-V, and 15-V paramatric rstinlp; (6)meets all requirements of JEDEC tentative standard No. 13A, "standard specifications for description of 'B' series CMOS devices"; (7)maximum input current of 1A at 18 V orer full package-temperature range;100 nA at 18 V and 25.The CD40147B types are supplied in 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).

The absolute maximum ratings of the CD40147B can be summarized as:(1)voltage referenced to Vss terminal:-0.5 to 20V;(2)storage temperature range:-65 to 150;(3)operating temperature:-55 to 125;(4)lead temperature:265.TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right,copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof.Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI.