74HC368D [NXP]

Hex buffer/line driver; 3-state; inverting; 六角缓冲器/线路驱动器;三态;反相


型号：	74HC368D
厂家：	NXP
描述：	Hex buffer/line driver; 3-state; inverting 六角缓冲器/线路驱动器;三态;反相总线驱动器总线收发器逻辑集成电路光电二极管
文件：	总7页 (文件大小：51K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

INTEGRATED CIRCUITS

DATA SHEET

For a complete data sheet, please also download:

• The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications

• The IC06 74HC/HCT/HCU/HCMOS Logic Package Information

• The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines

74HC/HCT368

Hex buffer/line driver; 3-state;

inverting

December 1990

Product speciﬁcation

File under Integrated Circuits, IC06

Philips Semiconductors

Product speciﬁcation

Hex buffer/line driver; 3-state; inverting

74HC/HCT368

The 74HC/HCT368 are hex inverting buffer/line drivers

with 3-state outputs. The 3-state outputs (nY) are

controlled by the output enable inputs (1OE, 2OE).

FEATURES

• Inverting outputs

• Output capability: bus driver

• I_CCcategory: MSI

A HIGH on nOE causes the outputs to assume a high

impedance OFF-state.

The “368” is identical to the “367” but has inverting outputs.

GENERAL DESCRIPTION

The 74HC/HCT368 are high-speed Si-gate CMOS devices

and are pin compatible with low power Schottky TTL

(LSTTL). They are specified in compliance with JEDEC

standard no. 7A.

QUICK REFERENCE DATA

GND = 0 V; T_amb= 25 °C; t_r= t_f= 6 ns

TYPICAL

SYMBOL

t_PHL/ t_PLH

PARAMETER

CONDITIONS

UNIT

HCT

propagation delay nA to nY

input capacitance

C_L= 15 pF; V_CC= 5 V

C_I

3.5

C_PD

power dissipation capacitance per buffer

notes 1 and 2

Notes

1. C_PDis used to determine the dynamic power dissipation (P_Din µW):

P_D= C_PD× V_CC²× f_i+ ∑ (C_L× V_CC× f_o) where:

f_i= input frequency in MHz

f_o= output frequency in MHz

∑ (C_L× V_CC× f_o) = sum of outputs

C_L= output load capacitance in pF

V_CC= supply voltage in V

2. For HC the condition is V_I= GND to V_CC

For HCT the condition is V_I= GND to V_CC−1.5 V

ORDERING INFORMATION

See “74HC/HCT/HCU/HCMOS Logic Package Information”.

December 1990

Philips Semiconductors

Product speciﬁcation

Hex buffer/line driver; 3-state; inverting

74HC/HCT368

PIN DESCRIPTION

PIN NO.

SYMBOL

1OE, 2OE

1A to 6A

1Y to 6Y

GND

NAME AND FUNCTION

1, 15

output enable inputs (active LOW)

data inputs

2, 4, 6, 10, 12, 14

3, 5, 7, 9, 11, 13

data outputs

ground (0 V)

V_CC

positive supply voltage

Fig.1 Pin configuration.

Fig.2 Logic symbol.

Fig.3 IEC logic symbol.

December 1990

Philips Semiconductors

Product speciﬁcation

Hex buffer/line driver; 3-state; inverting

74HC/HCT368

FUNCTION TABLE

INPUTS

nOE

OUTPUTS

Note

1. H = HIGH voltage level

L = LOW voltage level

X = don’t care

Z = high impedance OFF-state

Fig.4 Functional diagram.

Fig.5 Logic diagram.

December 1990

Philips Semiconductors

Product speciﬁcation

Hex buffer/line driver; 3-state; inverting

74HC/HCT368

DC CHARACTERISTICS FOR 74HC

For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.

Output capability: bus driver

I_CCcategory: MSI

AC CHARACTERISTICS FOR 74HC

GND = 0 V; t_r= t_f= 6 ns; C_L= 50 pF

T_amb(°C)

TEST CONDITIONS

74HC

SYMBOL

PARAMETER

UNIT

WAVEFORMS

V_CC

(V)

+25

−40 to +85 −40 to +125

min. typ. max. min. max. min. max.

t_PHL/ t_PLHpropagation delay

nA to nY

120

145

2.0 Fig.6

4.5

6.0

_PZH/ t_PZL3-state output enable time

nOE to nY

150

190

225

2.0 Fig.7

4.5

6.0

_PHZ/ t_PLZ3-state output disable time

nOE to nY

150

190

225

2.0 Fig.7

4.5

6.0

_THL/ t_TLHoutput transition time

2.0 Fig.6

4.5

6.0

December 1990

Philips Semiconductors

Product speciﬁcation

Hex buffer/line driver; 3-state; inverting

74HC/HCT368

DC CHARACTERISTICS FOR 74HCT

For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.

Output capability: bus driver

I_CCcategory: MSI

Note to HCT types

The value of additional quiescent supply current (∆I_CC) for a unit load of 1 is given in the family specifications.

To determine ∆I_CCper input, multiply this value by the unit load coefficient shown in the table below.

INPUT

UNIT LOAD COEFFICIENT

1OE

2OE

1.00

0.90

1.00

AC CHARACTERISTICS FOR 74HCT

GND = 0 V; t_r= t_f= 6 ns; C_L= 50 pF

T_amb(°C)

TEST CONDITIONS

74HCT

SYMBOL

PARAMETER

UNIT

WAVEFORMS

V_CC

(V)

+25

−40 to +85 −40 to +125

min. typ. max. min. max. min. max.

t_PHL/ t_PLHpropagation delay

nA to nY

4.5 Fig.6

4.5 Fig.7

4.5 Fig.6

t_PZH/ t_PZL3-state output enable time

nOE to nY

_PHZ/ t_PLZ3-state output disable time

nOE to nY

t_THL/ t_TLHoutput transition time

December 1990

Philips Semiconductors

Product speciﬁcation

Hex buffer/line driver; 3-state; inverting

74HC/HCT368

AC WAVEFORMS

(1) HC : V_M= 50%; V_I= GND to V_CC

HCT : V_M= 1.3 V; V_I= GND to 3 V.

Fig.6 Waveforms showing the input (nA) to output (nY) propagation delays and the output transition times.

(1) HC : V_M= 50%; V_I= GND to V_CC

HCT : V_M= 1.3 V; V_I= GND to 3 V.

Fig.7 Waveforms showing the 3-state enable and disable times.

PACKAGE OUTLINES

See “74HC/HCT/HCU/HCMOS Logic Package Outlines”.

December 1990

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