74VHCT245ATTR STMicroelectronics, 74VHCT245ATTR Datasheet

IC TRANSCVR TRI-ST 8BIT 20TSSOP

74VHCT245ATTR

Manufacturer Part Number
74VHCT245ATTR
Description
IC TRANSCVR TRI-ST 8BIT 20TSSOP
Manufacturer
STMicroelectronics
Series
74VHCTr
Datasheet

Specifications of 74VHCT245ATTR

Logic Type
Transceiver, Non-Inverting
Number Of Elements
1
Number Of Bits Per Element
8
Current - Output High, Low
8mA, 8mA
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
-55°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
20-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
DESCRIPTION
The 74VHCT245A is an advanced high-speed
CMOS OCTAL BUS TRANSCEIVER (3-STATE)
fabricated with sub-micron silicon gate and
double-layer metal wiring C
This IC is intended for two-way asynchronous
communication
Figure 1: Pin Connection And IEC Logic Symbols
December 2004
HIGH SPEED: t
LOW POWER DISSIPATION:
I
COMPATIBLE WITH TTL OUTPUTS:
V
POWER DOWN PROTECTION ON INPUTS
& OUTPUTS
SYMMETRICAL OUTPUT IMPEDANCE:
|I
BALANCED PROPAGATION DELAYS:
t
OPERATING VOLTAGE RANGE:
V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 245
IMPROVED LATCH-UP IMMUNITY
LOW NOISE: V
CC
PLH
OH
IH
CC
= 4 A (MAX.) at T
= 2V (MIN.), V
| = I
(OPR) = 4.5V to 5.5V
t
PHL
OL
= 8 mA (MIN)
between
OLP
PD
IL
= 4.5 ns (TYP.) at V
= 0.9V (MAX.)
= 0.8V (MAX)
A
=25°C
2
MOS technology.
data
busses;
CC
= 5V
the
Table 1: Order Codes
direction of data transmission is determined by
DIR input. The enable input G can be used to
disable the device so that the busses are
effectively isolated.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
All floating bus terminals during High Z State must
be held HIGH or LOW.
TRANSCEIVER (3-STATE)
PACKAGE
TSSOP
SOP
SOP
74VHCT245A
74VHCT245AMTR
74VHCT245ATTR
OCTAL BUS
Rev. 4
TSSOP
T & R
1/13

Related parts for 74VHCT245ATTR

74VHCT245ATTR Summary of contents

Page 1

... ESD immunity and transient excess voltage. MOS technology. All floating bus terminals during High Z State must be held HIGH or LOW. data busses; the 74VHCT245A OCTAL BUS TRANSCEIVER (3-STATE) SOP TSSOP PACKAGE SOP 74VHCT245AMTR TSSOP 74VHCT245ATTR Rev & R 1/13 ...

Page 2

Figure 2: Input/ Output Equivalent Circuit Figure 3: Input Equivalent Circuit Table 3: Truth Table INPUTS Don‘t Care Z : High Impedance 2/13 Table 2: Pin Description PIN N° ...

Page 3

Table 4: Absolute Maximum Ratings Symbol V Supply Voltage Input Voltage (DIR BUS I/O Voltage (see note 1) I BUS I/O Voltage (see note 2) I Input Diode Current ...

Page 4

Table 6: DC Specifications Symbol Parameter V High Level Input 4 Voltage V Low Level Input 4 Voltage V High Level Output OH Voltage V Low Level Output OL Voltage I High Impedance OZ Output ...

Page 5

Table 8: Capacitive Characteristics Symbol Parameter C Input Capacitance IN Bus Input C I/O Capacitance C Power Dissipation PD Capacitance (note defined as the value of the IC’s internal equivalent capacitance which is calculated from the ...

Page 6

Figure 5: Test Circuit PLH PHL PZL PLZ PZH PHZ C =15/ 50pF or equivalent (includes jig and probe capacitance equivalent L 1 ...

Page 7

Figure 7: Waveform - Output Enable And Disable Time (f=1MHz; 50% duty cycle) 74VHCT245A 7/13 ...

Page 8

DIM. MIN. A 2.35 A1 0.1 B 0.33 C 0.23 D 12. 10.00 h 0.25 L 0.4 k 0° ddd 8/13 SO-20 MECHANICAL DATA mm. TYP MAX. 2.65 0.30 0.51 0.32 13.00 7.6 1.27 10.65 ...

Page 9

TSSOP20 MECHANICAL DATA DIM. MIN 0.05 A2 0.8 b 0.19 c 0.09 D 6.4 E 6 0˚ PIN 1 IDENTIFICATION 1 mm. TYP MAX. 1.2 0.15 1 1.05 ...

Page 10

DIM. MIN 12 10.8 Bo 13.2 Ko 3.1 Po 3.9 P 11.9 10/13 Tape & Reel SO-20 MECHANICAL DATA mm. TYP MAX. 330 13.2 30.4 11 13.4 3.3 4.1 12.1 inch ...

Page 11

Tape & Reel TSSOP20 MECHANICAL DATA DIM. MIN 12 6.8 Bo 6.9 Ko 1.7 Po 3.9 P 11.9 mm. TYP MAX. 330 13.2 0.504 0.795 2.362 22.4 7 0.268 7.1 0.272 1.9 ...

Page 12

Table 9: Revision History Date Revision 16-Dec-2004 4 12/13 Description of Changes Order Codes Revision - pag. 1. ...

Page 13

... 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. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics ...

Related keywords