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74F382, 74F382D, 74F382PC

Table of contents:
Info of 74F382
Info of 74F382D
Info of 74F382PC

74F382, 74F382D, 74F382PC Selling Leads, Datasheet

MFG:TI Package Cooled:DIP-20 D/C:06+

74F382, 74F382D, 74F382PC Datasheet download

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Part Number: 74F382

MFG: TI

Package Cooled: DIP-20

D/C: 06+

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74F382 General Description

The 74F382 performs three arithmetic and three logic operations on two 4-bit words, A and B. Two additional Select (S0S2) input codes force the Function outputs Low or High. An overflow output is provided for convenience in Two's Complement arithmetic.

A carry output is provided for ripple expansion. For high-speed expansion using a carry look-ahead generator, refer to the 74F381 data sheet.

Signals applied to the Select inputs, S0S2, determine the mode of operation, as indicated in the Function Select Table. An extensive listing of input and output levels is shown in the Function Table. The circuit performs the arithmetic functions for either active-HIgh or active-Low operands, with output levels in the same convention. In the subtract operating modes, it is necessary to force a carry (High for active-HIgh operands, Low for active-Low operands) into the Cn input of the least significant package. Ripple expansion is illustrated in Figure 1. The overflow output OVR is the Exclusive-OR of Cn+3 and Cn+4; a High signal on OVR indicates overflow in Two's complement operation (See Table 2 for Two's complement arithmetic). Typical delays for Figure 1 are given in Table 1. When the 74F382 is cascaded to handle word lengths longer than 4 bits, only the most significant overflow (OVR) output is used.

74F382 Maximum Ratings

SYMBOL	PARAMETER	RATING	UNIT
V_CC	Supply voltage	0.5 to +7.0	V
V_IN	Input voltage	0.5 to +7.0	V
I_IN	Input current	30 to +5	mA
V_OUT	Voltage applied to output in high output state	0.5 to VCC	V
I_OUT	Current applied to output in low output state	40	mA
T_amb	Operating free air temperature range	0 to +70	°C
T_stg	Storage temperature range	65 to +150	°C

74F382 Features

• Performs six arithmetic and logic functions
• Selectable Low (clear) and High (preset) functions
• Low-input loading minimizes drive requirements
• Carry output for ripple expansion
• Overflow output for Two's Complement arithmetic

74F382 Connection Diagram

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