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IDT74FCT646DTPG

Description
Registered Bus Transceiver, FCT Series, 1-Func, 8-Bit, True Output, CMOS, PDSO24, TSSOP-24
Categorylogic    logic   
File Size189KB,9 Pages
ManufacturerIDT (Integrated Device Technology)
Download Datasheet Parametric View All

IDT74FCT646DTPG Overview

Registered Bus Transceiver, FCT Series, 1-Func, 8-Bit, True Output, CMOS, PDSO24, TSSOP-24

IDT74FCT646DTPG Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerIDT (Integrated Device Technology)
Parts packaging codeTSSOP
package instructionTSSOP, TSSOP24,.25
Contacts24
Reach Compliance Codenot_compliant
Other featuresDIRECTION CONTROL
Control typeINDEPENDENT CONTROL
Counting directionBIDIRECTIONAL
seriesFCT
JESD-30 codeR-PDSO-G24
JESD-609 codee0
length7.8 mm
Logic integrated circuit typeREGISTERED BUS TRANSCEIVER
MaximumI(ol)0.064 A
Humidity sensitivity level1
Number of digits8
Number of functions1
Number of ports2
Number of terminals24
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Output characteristics3-STATE
Output polarityTRUE
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSSOP24,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
power supply5 V
Prop。Delay @ Nom-Sup4.4 ns
propagation delay (tpd)4.4 ns
Certification statusNot Qualified
Maximum seat height1.2 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 levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn85Pb15)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
translateN/A
Trigger typePOSITIVE EDGE
width4.4 mm
FAST CMOS OCTAL
TRANSCEIVER/
REGISTERS (3-STATE)
Integrated Device Technology, Inc.
IDT54/74FCT646T/AT/CT/DT - 2646T/AT/CT
IDT54/74FCT648T/AT/CT
IDT54/74FCT652T/AT/CT/DT - 2652T/AT/CT
FEATURES:
• Common features:
– Low input and output leakage
≤1µA
(max.)
– Extended commercial range of –40°C to +85°C
– 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, TSSOP,
CERPACK and LCC packages
• Features for FCT646T/648T/652T:
– Std., A, C and D speed grades
– High drive outputs (-15mA I
OH
, 64mA I
OL
)
– Power off disable outputs permit “live insertion”
• Features for FCT2646T/2652T:
– 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 FCT646T/FCT2646T/FCT648T/FCT652T/2652T con-
sist of a bus transceiver with 3-state D-type flip-flops and
control circuitry arranged for multiplexed transmission of data
directly from the data bus or from the internal storage regis-
ters.
The FCT652T/FCT2652T utilize GAB and
GBA
signals to
control the transceiver functions. The FCT646T/FCT2646T/
FCT648T utilize the enable control (
G
) and direction (DIR)
pins to control the transceiver functions.
SAB and SBA control pins are provided to select either real-
time or stored data transfer. The circuitry used for select
control will eliminate the typical decoding glitch that occurs in
a multiplexer during the transition between stored and real-
time data. A LOW input level selects real-time data and a
HIGH selects stored data.
Data on the A or B data bus, or both, can be stored in the
internal D flip-flops by LOW-to-HIGH transitions at the appro-
priate clock pins (CPAB or CPBA), regardless of the select or
enable control pins.
The FCT26xxT have 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. FCT2xxxT parts are
plug-in replacements for FCTxxxT parts.
IDT54/74FCT652/2652
ONLY
GBA
GAB
FUNCTIONAL BLOCK DIAGRAM
IDT54/74FCT646/2646/648
ONLY
G
DIR
CPBA
SBA
CPAB
SAB
B REG
1 OF 8 CHANNELS
1D
C1
646/2646/652/2652
ONLY
A1
A REG
1D
C1
B1
646/2646/652/2652
ONLY
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
2634 drw 01
TO 7 OTHER CHANNELS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
©1996
Integrated Device Technology, Inc.
SEPTEMBER 1996
DSC-2634/9
6.20
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