IDT74FCT2373CT TRANSPARENT LATCHES Datasheet

IDT74FCT2373CT Datasheet, PDF, Equivalent


Part Number

IDT74FCT2373CT

Description

FAST CMOS OCTAL TRANSPARENT LATCHES

Manufacture

Integrated Device Tech

Total Page 7 Pages
Datasheet
Download IDT74FCT2373CT Datasheet


IDT74FCT2373CT
IDT74FCT2373AT/CT
FASTCMOSOCTALTRANSPARENTLATCH
FAST CMOS OCTAL
TRANSPARENT LATCH
INDUSTRIALTEMPERATURERANGE
IDT74FCT2373AT/CT
FEATURES:
• A and C grades
• Low input and output leakage 1µA (max.)
• CMOS power levels
• True TTL input and output compatibility:
– VOH = 3.3V (typ.)
– VOL = 0.3V (typ.)
• Meets or exceeds JEDEC standard 18 specifications
• Resistor outputs -15mA IOH, 12mA IOL
• Reduced system switching noise
• Available in QSOP package
DESCRIPTION:
The FCT2373T is an octal transparent latch built using an advanced dual
metal CMOS technology. These octal latches have 3-state outputs and are
intended for bus oriented applications. The flip-flops appear transparent to
the data when Latch Enable (LE) is high. When LE is low, the data that meets
the set-up time is latched. Data appears on the bus when the Output Enable
(OE) is low. When OE is high, the bus output is in the high-impedance state.
The FCT2373T has balanced drive outputs with current limiting resis-
tors. This offers low ground bounce, minimal undershoot and controlled
output fall times-reducing the need for external series terminating resistors.
The FCT2373T parts are plug-in replacements for FCT373T parts.
FUNCTIONAL BLOCK DIAGRAM
D0 D1 D2 D3 D4 D5 D6 D7
D
O
G
D
O
G
D
O
G
D
O
G
D
O
G
D
O
G
D
O
G
D
O
G
LE
OE
O0 O1 O2 O3 O4 O5 O6 O7
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
© 2009 Integrated Device Technology, Inc.
1
SEPTEMBER 2009
DSC-5497/7

IDT74FCT2373CT
IDT74FCT2373AT/CT
FASTCMOSOCTALTRANSPARENTLATCH
PIN CONFIGURATION
OE
O0
D0
D1
O1
O2
D2
D3
O3
GND
1 20
2 19
3 18
4 17
5 16
6 15
7 14
8 13
9 12
10 11
QSOP
TOP VIEW
VCC
O7
D7
D6
O6
O5
D5
D4
O4
LE
INDUSTRIALTEMPERATURERANGE
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
VTERM(2)
VTERM(3)
TSTG
IOUT
Description
Terminal Voltage with Respect to GND
Terminal Voltage with Respect to GND
Storage Temperature
DC Output Current
Max
–0.5 to +7
–0.5 to VCC+0.5
–65 to +150
–60 to +120
Unit
V
V
°C
mA
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause
permanent damage to the device. This is a stress rating only and functional operation
of the device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability. No terminal voltage may exceed
Vcc by +0.5V unless otherwise noted.
2. Inputs and Vcc terminals only.
3. Output and I/O terminals only.
CAPACITANCE (TA = +25°C, F = 1.0MHz)
Symbol
Parameter(1)
Conditions Typ. Max. Unit
CIN Input Capacitance VIN = 0V 6 10 pF
COUT
Output Capacitance VOUT = 0V
8
12 pF
NOTE:
1. This parameter is measured at characterization but not tested.
PIN DESCRIPTION
Pin Names
Dx
LE
OE
Ox
Description
Data Inputs
Latch Enable Input (Active HIGH)
Output Enable Input (Active LOW)
3-State Outputs
FUNCTION TABLE(1)
Inputs
Dx LE
LH
HH
XX
NOTE:
1. H = HIGH Voltage Level
X = Don’t Care
L = LOW Voltage Level
Z = High Impedance
OE
L
L
H
Outputs
Ox
L
H
Z
2


Features Integrated Device Technology, Inc. FAST CMOS OCTAL TRANSPARENT LATCHES IDT54/ 74FCT373T/AT/CT/DT - 2373T/AT/CT IDT54/ 74FCT533T/AT/CT IDT54/74FCT573T/AT/CT/D T - 2573T/AT/CT FEATURES: – Reduced system switching noise • Common fea tures: – Low input and output leakage ≤1µA (max.) – CMOS power levels True TTL input and output compatibil ity – VOH = 3.3V (typ.) – VOL = 0.3 V (typ.) – Meets or exceeds JEDEC sta ndard 18 specifications – Product ava ilable in Radiation Tolerant and Radiat ion Enhanced versions – Military prod uct compliant to MIL-STD-883, Class B a nd DESC listed (dual marked) – Availa ble in DIP, SOIC, SSOP, QSOP, CERPACK a nd LCC packages • Features for FCT373 T/FCT533T/FCT573T: – Std., A, C and D speed grades – High drive outputs (- 15mA IOH, 48mA IOL) – Power off disab le outputs permit “live insertion” • Features for FCT2373T/FCT2573T: – Std., A and C speed grades – Resisto r output (-15mA IOH, 12mA IOL Com.) (-12mA IOH, 12mA IOL Mil.) DESCRIPTION: The FCT373T/FCT2373T, FCT533T.
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