M74HCT245TTR STMicroelectronics, M74HCT245TTR Datasheet

IC TRANSCVR TRI-ST 8BIT 20TSSOP

M74HCT245TTR

Manufacturer Part Number
M74HCT245TTR
Description
IC TRANSCVR TRI-ST 8BIT 20TSSOP
Manufacturer
STMicroelectronics
Series
74HCTr
Datasheet

Specifications of M74HCT245TTR

Logic Type
Transceiver, Non-Inverting
Number Of Elements
1
Number Of Bits Per Element
8
Current - Output High, Low
7.2mA, 7.2mA
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
20-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-8195-2
M74HCT245TTR

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DESCRIPTION
The M74HCT245 is an advanced high-speed
CMOS OCTAL BUS TRANSCEIVER (3-STATE)
fabricated with silicon gate C
This IC is intended for two-way asynchronous
communication between data buses, and the
direction of data transmission is determined by
DIR input. The enable input G can be used to
disable the device so that the buses are effectively
isolated.
PIN CONNECTION AND IEC LOGIC SYMBOLS
August 2001
HIGH SPEED:
t
LOW POWER DISSIPATION:
I
COMPATIBLE WITH TTL OUTPUTS :
V
SYMMETRICAL OUTPUT IMPEDANCE:
|I
BALANCED PROPAGATION DELAYS:
t
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 245
PD
CC
PLH
OH
IH
= 13ns (TYP.) at V
= 4 A(MAX.) at T
= 2V (MIN.) V
| = I
t
PHL
OL
= 6mA (MIN)
IL
= 0.8V (MAX)
A
CC
=25°C
= 4.5V
2
WITH 3 STATE OUTPUTS (NON INVERTED)
MOS technology.
ORDER CODES
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
All floating bus terminals during High Z State must
be held HIGH or LOW.
PACKAGE
OCTAL BUS TRANSCEIVER
TSSOP
SOP
DIP
DIP
M74HCT245M1R M74HCT245RM13TR
M74HCT245B1R
TUBE
M74HCT245
SOP
M74HCT245TTR
T & R
TSSOP
1/9

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M74HCT245TTR Summary of contents

Page 1

... DIP SOP TSSOP MOS technology. All inputs are equipped with protection circuits against static discharge and transient excess voltage. All floating bus terminals during High Z State must be held HIGH or LOW. M74HCT245 DIP SOP TUBE T & R M74HCT245B1R M74HCT245M1R M74HCT245RM13TR M74HCT245TTR TSSOP 1/9 ...

Page 2

M74HCT245 INPUT AND OUTPUT EQUIVALENT CIRCUIT TRUTH TABLE INPUTS G DIR Don’t Care Z : High Impedance ABSOLUTE MAXIMUM RATINGS Symbol V Supply Voltage Input Voltage Output Voltage O ...

Page 3

DC SPECIFICATIONS Symbol Parameter V V High Level Input IH Voltage V Low Level Input IL Voltage V High Level Output OH Voltage V Low Level Output OL Voltage I Input Leakage I Current I High Impedance OZ Output Leakage ...

Page 4

M74HCT245 CAPACITIVE CHARACTERISTICS Symbol Parameter V C Input Capacitance IN Output C I/OUT Capacitance C Power Dissipation PD Capacitance (note defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating ...

Page 5

WAVEFORM 1 : PROPAGATION DELAY TIME (f=1MHz; 50% duty cycle) WAVEFORM 2 : OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle) M74HCT245 5/9 ...

Page 6

M74HCT245 DIM. MIN. a1 0.254 B 1. 6/9 Plastic DIP-20 (0.25) MECHANICAL DATA mm. TYP MAX. 1.65 0.45 0.25 25.4 8.5 2.54 22.86 7.1 3.93 3.3 1.34 inch MIN. TYP. ...

Page 7

SO-20 MECHANICAL DATA mm. DIM. MIN 0 0. 12.60 E 10. 11.43 F 7. TYP MAX. MIN. 2.65 0.2 0.004 2.45 0.49 0.014 0.32 0.009 ...

Page 8

M74HCT245 DIM. MIN 0.05 A2 0.8 b 0.19 c 0.09 D 6.4 E 6 0° PIN 1 IDENTIFICATION 1 8/9 TSSOP20 MECHANICAL DATA mm. TYP MAX. 1.2 0.15 ...

Page 9

... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied ...

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