74HCT238D datasheet, PDF - EEWORLD Datasheet

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74HCT238D: DescriptionEncoders, Decoders, Multiplexers u0026 Demultiplexers 3-TO-8 DECOD/DEMUX; Categorylogic logic; File Size105KB，19 Pages; ManufacturerNXP; Websitehttps://www.nxp.com; Environmental Compliance

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74HCT238D Overview

Encoders, Decoders, Multiplexers u0026 Demultiplexers 3-TO-8 DECOD/DEMUX

74HCT238D Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	NXP
Parts packaging code	SOIC
package instruction	SOP, SOP16,.25
Contacts	16
Reach Compliance Code	compliant
ECCN code	EAR99
Other features	3 ENABLE INPUTS
series	HCT
Input adjustment	STANDARD
JESD-30 code	R-PDSO-G16
JESD-609 code	e4
length	9.9 mm
Load capacitance (CL)	50 pF
Logic integrated circuit type	OTHER DECODER/DRIVER
MaximumI(ol)	0.004 A
Humidity sensitivity level	1
Number of functions	1
Number of terminals	16
Maximum operating temperature	125 °C
Minimum operating temperature	-40 °C
Output polarity	TRUE
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Encapsulate equivalent code	SOP16,.25
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	260
power supply	5 V
Prop。Delay @ Nom-Sup	53 ns
propagation delay (tpd)	53 ns
Certification status	Not Qualified
Maximum seat height	1.75 mm
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	4.5 V
Nominal supply voltage (Vsup)	5 V
surface mount	YES
technology	CMOS
Temperature level	AUTOMOTIVE
Terminal surface	NICKEL PALLADIUM GOLD
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
width	3.9 mm
Base Number Matches	1

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74HC238; 74HCT238

3-to-8 line decoder/demultiplexer

Rev. 03 — 16 July 2007

Product data sheet

1. General description

74HC238 and 74HCT238 are high-speed Si-gate CMOS devices and are pin compatible

with Low-Power Schottky TTL (LSTTL).

The 74HC238/74HCT238 decoders accept three binary weighted address inputs (A0, A1,

A2) and when enabled, provide 8 mutually exclusive active HIGH outputs (Y0 to Y7). The

74HC238/74HCT238 features three enable inputs: two active LOW (E1 and E2) and one

active HIGH (E3). Every output will be LOW unless E1 and E2 are LOW and E3 is HIGH.

This multiple enable function allows easy parallel expansion of the “238” to a 1-to-32 (5

lines to 32 lines) decoder with just four “238” ICs and one inverter. The “238” can be used

as an eight output demultiplexer by using one of the active LOW enable inputs as the data

input and the remaining enable inputs as strobes. Unused enable inputs must be

permanently tied to their appropriate active HIGH or LOW state.

The 74HC238/74HCT238 is similar to the 74HC138/74HCT138 but has non-inverting

outputs.

2. Features

Demultiplexing capability

Multiple input enable for easy expansion

Ideal for memory chip select decoding

Active HIGH mutually exclusive outputs

Multiple package options

Complies with JEDEC standard no. 7A

ESD protection:

HBM JESD22-A114E exceeds 2000 V

MM JESD22-A115-A exceeds 200 V

Speciﬁed from

−40 °C

to +85

°C

and from

−40 °C

to +125

°C

74HCT238D Related Products

	74HCT238D	74HC238DB-T	74HC238PW-T	74HCT238DB	74HCT238PW	74HCT238DB-T
Description	Encoders, Decoders, Multiplexers u0026 Demultiplexers 3-TO-8 DECOD/DEMUX	Encoders, Decoders, Multiplexers u0026 Demultiplexers 3-TO-8 DECODER DEMULTIPLEXER	Encoders, Decoders, Multiplexers u0026 Demultiplexers 3-TO-8 DECODER DEMULTIPLEXER	Encoders, Decoders, Multiplexers & Demultiplexers 3-TO-8 DECOD/DEMUX	Encoders, Decoders, Multiplexers & Demultiplexers 3-TO-8 DECOD/DEMUX	Encoders, Decoders, Multiplexers & Demultiplexers 3-TO-8 DECODER DEMULTIPLEXER
Is it Rohs certified?	conform to	conform to	conform to	conform to	conform to	conform to
Maker	NXP	NXP	NXP	NXP	NXP	NXP
Parts packaging code	SOIC	SOIC	TSSOP	SOIC	TSSOP	SOIC
package instruction	SOP, SOP16,.25	SSOP-16	TSSOP,	SSOP-16	TSSOP, TSSOP16,.25	SSOP-16
Contacts	16	16	16	16	16	16
Reach Compliance Code	compliant	unknown	unknown	unknown	unknown	unknown
Other features	3 ENABLE INPUTS	3 ENABLE INPUTS	3 ENABLE INPUTS	3 ENABLE INPUTS	3 ENABLE INPUTS	3 ENABLE INPUTS
series	HCT	HC/UH	HC/UH	HCT	HCT	HCT
Input adjustment	STANDARD	STANDARD	STANDARD	STANDARD	STANDARD	STANDARD
JESD-30 code	R-PDSO-G16	R-PDSO-G16	R-PDSO-G16	R-PDSO-G16	R-PDSO-G16	R-PDSO-G16
JESD-609 code	e4	e4	e4	e4	e4	e4
length	9.9 mm	6.2 mm	5 mm	6.2 mm	5 mm	6.2 mm
Load capacitance (CL)	50 pF	50 pF	50 pF	50 pF	50 pF	50 pF
Logic integrated circuit type	OTHER DECODER/DRIVER	OTHER DECODER/DRIVER	OTHER DECODER/DRIVER	OTHER DECODER/DRIVER	OTHER DECODER/DRIVER	OTHER DECODER/DRIVER
Humidity sensitivity level	1	1	1	1	1	1
Number of functions	1	1	1	1	1	1
Number of terminals	16	16	16	16	16	16
Maximum operating temperature	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C
Output polarity	TRUE	TRUE	TRUE	TRUE	TRUE	TRUE
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	SOP	SSOP	TSSOP	SSOP	TSSOP	SSOP
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE	SMALL OUTLINE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260	260	260	260	260	260
propagation delay (tpd)	53 ns	45 ns	45 ns	53 ns	53 ns	53 ns
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	1.75 mm	2 mm	1.1 mm	2 mm	1.1 mm	2 mm
Maximum supply voltage (Vsup)	5.5 V	6 V	6 V	5.5 V	5.5 V	5.5 V
Minimum supply voltage (Vsup)	4.5 V	2 V	2 V	4.5 V	4.5 V	4.5 V
Nominal supply voltage (Vsup)	5 V	5 V	5 V	5 V	5 V	5 V
surface mount	YES	YES	YES	YES	YES	YES
technology	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
Temperature level	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE
Terminal surface	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
Terminal pitch	1.27 mm	0.65 mm	0.65 mm	0.65 mm	0.65 mm	0.65 mm
Terminal location	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	30	30	30	30	30	30
width	3.9 mm	5.3 mm	4.4 mm	5.3 mm	4.4 mm	5.3 mm
Base Number Matches	1	1	1	1	1	1
ECCN code	EAR99	EAR99	EAR99	EAR99	-	EAR99

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