EEWORLDEEWORLDEEWORLD

Part Number

Search

IDT74FCT640TQ

Description
Bus Transceiver, FCT Series, 1-Func, 8-Bit, Inverted Output, CMOS, PDSO20, 0.150 INCH, 0.025 INCH PITCH, QSOP-20
Categorylogic    logic   
File Size157KB,8 Pages
ManufacturerIDT (Integrated Device Technology)
Download Datasheet Parametric View All

IDT74FCT640TQ Overview

Bus Transceiver, FCT Series, 1-Func, 8-Bit, Inverted Output, CMOS, PDSO20, 0.150 INCH, 0.025 INCH PITCH, QSOP-20

IDT74FCT640TQ Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
Parts packaging codeQSOP
package instruction0.150 INCH, 0.025 INCH PITCH, QSOP-20
Contacts20
Reach Compliance Codenot_compliant
Other featuresWITH DIRECTION CONTROL
Control typeCOMMON CONTROL
Counting directionBIDIRECTIONAL
seriesFCT
JESD-30 codeR-PDSO-G20
JESD-609 codee0
length8.6868 mm
Load capacitance (CL)50 pF
Logic integrated circuit typeBUS TRANSCEIVER
MaximumI(ol)0.064 A
Humidity sensitivity level1
Number of digits8
Number of functions1
Number of ports2
Number of terminals20
Maximum operating temperature70 °C
Minimum operating temperature
Output characteristics3-STATE
Output polarityINVERTED
Package body materialPLASTIC/EPOXY
encapsulated codeSSOP
Encapsulate equivalent codeSSOP20,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE, SHRINK PITCH
power supply5 V
Prop。Delay @ Nom-Sup7 ns
propagation delay (tpd)7 ns
Certification statusNot Qualified
Maximum seat height1.7272 mm
Maximum supply voltage (Vsup)5.25 V
Minimum supply voltage (Vsup)4.75 V
Nominal supply voltage (Vsup)5 V
surface mountYES
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceTin/Lead (Sn85Pb15)
Terminal formGULL WING
Terminal pitch0.635 mm
Terminal locationDUAL
translateN/A
width3.937 mm
Base Number Matches1
FAST CMOS OCTAL
BIDIRECTIONAL
TRANSCEIVERS
Integrated Device Technology, Inc.
IDT54/74FCT245T/AT/CT/DT - 2245T/AT/CT
IDT54/74FCT640T/AT/CT
IDT54/74FCT645T/AT/CT/DT
FEATURES:
• Common features:
– Low input and output leakage
≤1µA
(max.)
– CMOS power levels
– True TTL input and output compatibility
– V
OH
= 3.3V (typ.)
– V
OL
= 0.3V (typ.)
– Meets or exceeds JEDEC standard 18 specifications
– Product available in Radiation Tolerant and Radiation
Enhanced versions
– Military product compliant to MIL-STD-883, Class B
and DESC listed (dual marked)
– Available in DIP, SOIC, SSOP, QSOP, CERPACK
and LCC packages
• Features for FCT245T/FCT640T/FCT645T:
– Std., A, C and D speed grades
– High drive outputs (-15mA I
OH
, 64mA I
OL
)
• Features for FCT2245T:
– Std., A and C speed grades
– Resistor outputs (-15mA I
OH
, 12mA I
OL
Com.)
(-12mA I
OH
, 12mA I
OL
Mil.)
– Reduced system switching noise
DESCRIPTION:
The IDT octal bidirectional transceivers are built using an
advanced dual metal CMOS technology. The FCT245T/
FCT2245T, FCT640T and FCT645T are designed for asyn-
chronous two-way communication between data buses. The
transmit/receive (T/
R
) input determines the direction of data
flow through the bidirectional transceiver. Transmit (active
HIGH) enables data from A ports to B ports, and receive
(active LOW) from B ports to A ports. The output enable (
OE
)
input, when HIGH, disables both A and B ports by placing
them in HIGH Z condition.
The FCT245T/FCT2245T and FCT645T transceivers have
non-inverting outputs. The FCT640T has inverting outputs.
The FCT2245T has balanced drive outputs with current
limiting resistors. This offers low ground bounce, minimal
undershoot and controlled output fall times- reducing the need
for external series terminating resistors. The FCT2xxxT parts
are plug-in replacements for FCTxxxT parts.
FUNCTIONAL BLOCK DIAGRAM
T/R
OE
A
0
B
0
A
1
B
1
A
2
B
2
A
3
B
3
A
4
B
4
A
5
B
5
A
6
B
6
A
7
B
7
FCT245T/2245T, FCT645T are non-inverting options.
FCT640T is the inverting options.
2539 drw 01
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
PIN CONFIGURATIONS
T/R
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
GND
1
2
3
4
5
6
7
8
9
10
20
19
P20-1
D20-1
SO20-2
SO20-7*
SO20-8**
&
E20-1
18
17
16
15
14
13
12
11
Vcc
OE
B
0
B
1
B
2
B
3
B
4
B
5
B
6
B
7
2539 drw 02
DIP/SOIC/SSOP/QSOP/CERPACK
TOP VIEW
*FCT245T/2245T, FCT645T only.
**FCT245T/2245T, FCT640T
INDEX
A
2
A
3
A
4
A
5
A
6
A
1
A
0
T/R
Vcc
OE
3
4
5
6
7
8
2
20 19
18
1
17
16
15
14
9 10 11 12 13
L20-2
B
0
B
1
B
2
B
3
B
4
A
7
GND
B
7
B
6
B
5
2539 drw 03
LCC
TOP VIEW
MILITARY AND COMMERCIAL TEMPERATURE RANGES
©1995
Integrated Device Technology, Inc.
AUGUST 1995
DSC-4611/4
6.9
1
Feelings after reposting a post
[font=宋体][size=14pt] [/size][/font] [align=center][table=95%][tr][td][font=宋体][size=14pt]MCU programmer Yang XX posted on 2006-10-4 14:45 Talking about the cheapness of MCU!!! 1. Write programs for cu...
heningbo Talking
Some questions about the API
Can anyone explain the differences and connections between LINUX programming functions such as open, write, read for file I/0 and fork() for process and API, and what are their focuses?...
owentangye Embedded System
Under what circumstances is an 8M crystal oscillator needed?
It seems that only using a low-frequency crystal can run 125ns, but I don't know if it is true....
zry113 Microcontroller MCU
R7F0C802x -- Essays (1)
Many experts have explained the board before, so I won't say more here. The following mainly introduces the experience I found during the development process and the related problems I encountered. Af...
pkilllo Renesas Electronics MCUs
AD9850
Let's look at the information....
huakay RF/Wirelessly
77 GHz Radar Solutions
Reference Designs and Products Short Range Radar (SRR) Reference DesignSchematic / Block DiagramReference Guide...
Jacktang Wireless Connectivity

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2081  1504  199  520  1928  42  31  4  11  39 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号