16-Bit Buffers/Line Drivers
CY74FCT16240T
CY74FCT162240T
Data sheet acquired from Cypress Semiconductor Corporation.
Data sheet modified to remove devices not offered.
SCCS027B - August 1994 - Revised September 2001
Copyright
2001, Texas Instruments Incorporated
1CY74FCT162240T
Features
I
off
supports partial-power-down mode operation
Edge-rate control circuitry for significantly improved
noise characteristics
Typical output skew < 250 ps
ESD > 2000V
TSSOP (19.6-mil pitch) and SSOP (25-mil pitch)
packages
Industrial temperature range of 40C to +85C
V
CC
= 5V
10%
CY74FCT16240T Features:
64 mA sink current, 32 mA source current
Typical V
OLP
(ground bounce)
<1.0V at V
CC
= 5V, T
A
= 25C
CY74FCT162240T Features:
Balanced output drivers: 24 mA
Reduced system switching noise
Typical V
OLP
(ground bounce)
<0.6V at V
CC
= 5V, T
A
= 25C
Functional Description
These 16-bit buffer/line drivers are used in memory driver,
clock driver, or other bus interface applications, where high
speed and low power are required. With flow-through pinout
and small shrink packaging, board layout is simplified. The
three-state controls are designed to allow 4-, 8-, or 16-bit
operation.
This
device
is
fully
specified
for
partial-power-down
applications using I
off
. The I
off
circuitry disables the outputs,
preventing damaging current backflow through the device
when it is powered down.
The
CY74FCT16240T
is
ideally
suited
for
driving
high-capacitance loads and low-impedance backplanes.
The CY74FCT162240T has 24-mA balanced output drivers
with current limiting resistors in the outputs. This reduces the
need for external terminating resistors and provides for mini-
mal
undershoot
and
reduced
ground
bounce.
The
CY74FCT162240T is ideal for driving transmission lines.
GND
Logic Block Diagrams
Pin Configuration
1
2
3
4
5
6
7
8
9
10
11
12
33
32
31
30
29
25
26
27
28
36
35
1
OE
34
SSOP/TSSOP
Top View
FCT162401
1
Y
1
1
Y
2
1
Y
3
1
Y
4
13
14
15
16
17
18
19
20
21
22
23
24
45
44
43
42
41
37
38
39
40
48
47
46
1
A
1
1
A
2
1
A
3
1
A
4
1
OE
FCT162402
2
Y
1
2
Y
2
2
Y
3
2
Y
4
2
A
1
2
A
2
2
A
3
2
A
4
2
OE
1
Y
1
1
Y
2
1
Y
3
1
Y
4
1
A
1
1
A
2
1
A
3
1
A
4
2
OE
GND
GND
V
CC
2
Y
3
2
Y
4
2
Y
1
2
Y
2
2
A
1
2
A
2
2
A
3
2
A
4
V
CC
GND
GND
3
Y
3
3
Y
4
3
Y
1
3
Y
2
3
A
1
3
A
2
3
A
3
3
A
4
GND
GND
V
CC
4
Y
3
4
Y
4
4
Y
1
4
Y
2
4
A
1
4
A
2
4
A
3
4
A
4
V
CC
GND
3
OE
4
OE
FCT162403
3
Y
1
3
Y
2
3
Y
3
3
Y
4
3
A
1
3
A
2
3
A
3
3
A
4
3
OE
FCT162404
4
Y
1
4
Y
2
4
Y
3
4
Y
4
4
A
1
4
A
2
4
A
3
4
A
4
4
OE
FCT162405
CY74FCT16240T
CY74FCT162240T
2
Maximum Ratings
[2, 3]
(Above which the useful life may be impaired. For user
guidelines, not tested.)
Storage Temperature ......................Com'l . 55
C to +125
C
Ambient Temperature with
Power Applied..................................Com'l . 55
C to +125
C
DC Input Voltage ........................................... 0.5V to +7.0V
DC Output Voltage......................................... 0.5V to +7.0V
DC Output Current
(Maximum Sink Current/Pin) ........................60 to +120 mA
Power Dissipation .......................................................... 1.0W
Static Discharge Voltage
(per MIL-STD-883, Method 3015) .............................>2001V
Pin Summary
Name
Description
OE
Three-State Output Enable Inputs (Active LOW)
A
Data Inputs
Y
Three-State Outputs
Function Table
[1]
Inputs
Outputs
OE
A
Y
L
L
H
L
H
L
H
X
Z
Operating Range
Range
Ambient Temperature
V
CC
Industrial
40
C to +85
C
5V
10%
Electrical Characteristics
Over the Operating Range
Parameter
Description
Test Conditions
Min.
Typ.
[4]
Max.
Unit
V
IH
Input HIGH Voltage
2.0
V
V
IL
Input LOW Voltage
0.8
V
V
H
Input Hysteresis
[5]
100
mV
V
IK
Input Clamp Diode Voltage
V
CC
= Min., I
IN
= 18 mA
0.7
1.2
V
I
IH
Input HIGH Current
V
CC
= Max., V
I
= V
CC
1
A
I
IH
Input HIGH Current
V
CC
= Max., V
I
= V
CC
1
A
I
IL
Input LOW Current
V
CC
= Max., V
I
= GND
1
A
I
IL
Input LOW Current
V
CC
= Max., V
I
= GND
1
A
I
OZH
High Impedance Output Current
(Three-State Output pins)
V
CC
= Max., V
OUT
= 2.7V
1
A
I
OZL
High Impedance Output Current
(Three-State Output pins)
V
CC
= Max., V
OUT
= 0.5V
1
A
I
OS
Short Circuit Current
[6]
V
CC
= Max., V
OUT
= GND
80
140
200
mA
I
O
Output Drive Current
[6]
V
CC
= Max., V
OUT
= 2.5V
50
180
mA
I
OFF
Power-Off Disable
V
CC
= 0V, V
OUT
4.5V
[7]
1
A
Output Drive Characteristics for CY74FCT16240T
Parameter
Description
Test Conditions
Min.
Typ.
[4]
Max.
Unit
V
OH
Output HIGH Voltage
V
CC
= Min., I
OH
= 3 mA
2.5
3.5
V
V
CC
= Min., I
OH
= 15 mA
2.4
3.5
V
V
CC
= Min., I
OH
= 32 mA
2.0
3.0
V
V
OL
Output LOW Voltage
V
CC
= Min., I
OL
= 64 mA
0.2
0.55
V
Notes:
1.
H = HIGH Voltage Level. L = LOW Voltage Level. X = Don't Care. Z = High Impedance.
2.
Operation beyond the limits set forth may impair the useful life of the device. Unless noted, these limits are over the operating free-air temperature range.
3.
Unused inputs must always be connected to an appropriate logic voltage level, preferably either V
CC
or ground.
4.
Typical values are at V
CC
=5.0V, T
A
= +25C ambient.
5.
This parameter is specified but not tested.
6.
Not more than one output should be shorted at a time. Duration of short should not exceed one second. The use of high-speed test apparatus and/or sample
and hold techniques are preferable in order to minimize internal chip heating and more accurately reflect operational values. Otherwise prolonged shorting
of a high output may raise the chip temperature well above normal and thereby cause invalid readings in other parametric tests. In any sequence of parameter
tests, I
OS
tests should be performed last.
7.
Tested at +25C.
CY74FCT16240T
CY74FCT162240T
3
Output Drive Characteristics for CY74FCT162240T
Parameter
Description
Test Conditions
Min.
Typ.
[4]
Max.
Unit
I
ODL
Output LOW Current
[6]
V
CC
= 5V, V
IN
= V
IH
or V
IL
,V
OUT
= 1.5V
60
115
150
mA
I
ODH
Output HIGH Current
[6]
V
CC
= 5V, V
IN
= V
IH
or V
IL
, V
OUT
= 1.5V
60
115
150
mA
V
OH
Output HIGH Voltage
V
CC
= Min., I
OH
= 24 mA
2.4
3.3
V
V
OL
Output LOW Voltage
V
CC
= Min., I
OL
= 24 mA
0.3
0.55
V
Capacitance
[5]
(T
A
= +25C, f = 1.0 MHz)
Parameter
Description
Test Conditions
Typ.
[4]
Max.
Unit
C
IN
Input Capacitance
V
IN
= 0V
4.5
6.0
pF
C
OUT
Output Capacitance
V
OUT
= 0V
5.5
8.0
pF
Power Supply Characteristics
Parameter
Description
Test Conditions
Typ.
[4]
Max.
Unit
I
CC
Quiescent Power Supply Current V
CC
=Max.
V
IN
0.2V,
V
IN
V
CC
0.2V
5
500
A
I
CC
Quiescent Power Supply Current
(TTL inputs HIGH)
V
CC
=Max.
V
IN
=3.4V
[8]
0.5
1.5
mA
I
CCD
Dynamic Power Supply
Current
[9]
V
CC
=Max., One Input Tog-
gling, 50% Duty Cycle, Out-
puts Open, OE=GND
V
IN
=V
CC
or
V
IN
=GND
60
100
A/MHz
I
C
Total Power Supply Current
[10]
V
CC
=Max., f
1
=10 MHz, 50%
Duty Cycle, Outputs Open,
One Bit Toggling, OE=GND
V
IN
=V
CC
or
V
IN
=GND
0.6
1.5
mA
V
IN
=3.4V or
V
IN
=GND
0.9
2.3
mA
V
CC
=Max., f
1
=2.5 MHz, 50%
Duty Cycle, Outputs Open,
Sixteen Bits Toggling,
OE=GND
V
IN
=V
CC
or
V
IN
=GND
2.4
4.5
[11]
mA
V
IN
=3.4V or
V
IN
=GND
6.4
16.5
[11]
mA
Notes:
8.
Per TTL driven input (V
IN
=3.4V); all other inputs at V
CC
or GND.
9.
This parameter is not directly testable, but is derived for use in Total Power Supply calculations.
10. I
C
= I
QUIESCENT
+ I
INPUTS
+ I
DYNAMIC
I
C
= I
CC
+
I
CC
D
H
N
T
+I
CCD
(f
0
/2 + f
1
N
1
)
I
CC
= Quiescent Current with CMOS input levels
I
CC
= Power Supply Current for a TTL HIGH input (V
IN
=3.4V)
D
H
= Duty Cycle for TTL inputs HIGH
N
T
= Number of TTL inputs at D
H
I
CCD
= Dynamic Current caused by an input transition pair (HLH or LHL)
f
0
= Clock frequency for registered devices, otherwise zero
f
1
= Input signal frequency
N
1
= Number of inputs changing at f
1
All currents are in milliamps and all frequencies are in megahertz.
11. Values for these conditions are examples of the I
CC
formula. These limits are specified but not tested.
CY74FCT16240T
CY74FCT162240T
4
Switching Characteristics
Over the Operating Range
[12]
Document #: 38-00395-C
CY74FCT16240AT
CY74FCT162240CT
Fig.
No.
[13]
Parameter
Description
Min.
Max.
Min.
Max.
Unit
t
PLH
t
PHL
Propagation Delay Data to Output
1.5
4.8
1.5
4.3
ns
1, 2
t
PZH
t
PZL
Output Enable Time
1.5
6.2
1.5
5.8
ns
1, 7, 8
t
PHZ
t
PLZ
Output Disable Time
1.5
5.6
1.5
5.2
ns
1, 7, 8
t
SK(O)
Output Skew
[14]
0.5
0.5
ns
--
Note:
12. Minimum limits are specified but not tested on Propagation Delays.
13. See "Parameter Measurement Information" in the General Information section.
14. Skew between any two outputs of the same package switching in the same direction. This parameter is ensured by design.
Ordering Information CY74FCT16240
Speed
(ns)
Ordering Code
Package
Name
Package Type
Operating
Range
4.8
CY74FCT16240ATPVC/PVCT
O48
48-Lead (300-Mil) SSOP
Industrial
Ordering Information CY74FCT162240
Speed
(ns)
Ordering Code
Package
Name
Package Type
Operating
Range
4.3
74FCT162240CTPACT
Z48
48-Lead (240-Mil) TSSOP
Industrial
CY74FCT162240CTPVC
O48
48-Lead (300-Mil) SSOP
74FCT162240CTPVCT
O48
48-Lead (300-Mil) SSOP
CY74FCT16240T
CY74FCT162240T
5
Package Diagrams
48-Lead Shrunk Small Outline Package O48
CY74FCT16240T
CY74FCT162240T
6
Package Diagrams
48-Lead Thin Shrunk Small Outline Package
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package
Type
Package
Drawing
Pins Package
Qty
Eco Plan
(2)
Lead/Ball Finish
MSL Peak Temp
(3)
74FCT162240ATPACT
ACTIVE
TSSOP
DGG
48
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
74FCT162240CTPACT
ACTIVE
TSSOP
DGG
48
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
74FCT162240CTPVCT
ACTIVE
SSOP
DL
48
1000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
74FCT162240ETPACT
OBSOLETE
TSSOP
DGG
48
TBD
Call TI
Call TI
74FCT162240ETPVCT
OBSOLETE
SSOP
DL
48
TBD
Call TI
Call TI
74FCT16240ATPACTE4
ACTIVE
TSSOP
DGG
48
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
CY74FCT162240CTPVC
ACTIVE
SSOP
DL
48
25
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
CY74FCT162240ETPAC
OBSOLETE
TSSOP
DGG
48
TBD
Call TI
Call TI
CY74FCT162240ETPVC
OBSOLETE
SSOP
DL
48
TBD
Call TI
Call TI
CY74FCT16240ATPACT
ACTIVE
TSSOP
DGG
48
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
CY74FCT16240ATPVC
ACTIVE
SSOP
DL
48
25
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
CY74FCT16240ATPVCT
ACTIVE
SSOP
DL
48
1000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
CY74FCT16240ETPVC
OBSOLETE
SSOP
DL
48
TBD
Call TI
Call TI
CY74FCT16240ETPVCT
OBSOLETE
SSOP
DL
48
TBD
Call TI
Call TI
FCT162240ATPACTE4
ACTIVE
TSSOP
DGG
48
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
FCT162240CTPACTE4
ACTIVE
TSSOP
DGG
48
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco
Plan
-
The
planned
eco-friendly
classification:
Pb-Free
(RoHS)
or
Green
(RoHS
&
no
Sb/Br)
-
please
check
http://www.ti.com/productcontent
for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
PACKAGE OPTION ADDENDUM
www.ti.com
5-Sep-2005
Addendum-Page 1
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
PACKAGE OPTION ADDENDUM
www.ti.com
5-Sep-2005
Addendum-Page 2
MECHANICAL DATA
MSSO001C JANUARY 1995 REVISED DECEMBER 2001
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
DL (R-PDSO-G**)
PLASTIC SMALL-OUTLINE PACKAGE
4040048 / E 12/01
48 PINS SHOWN
56
0.730
(18,54)
0.720
(18,29)
48
28
0.370
(9,40)
(9,65)
0.380
Gage Plane
DIM
0.420 (10,67)
0.395 (10,03)
A MIN
A MAX
0.010 (0,25)
PINS **
0.630
(16,00)
(15,75)
0.620
0.010 (0,25)
Seating Plane
0.020 (0,51)
0.040 (1,02)
25
24
0.008 (0,203)
0.0135 (0,343)
48
1
0.008 (0,20) MIN
A
0.110 (2,79) MAX
0.299 (7,59)
0.291 (7,39)
0.004 (0,10)
M
0.005 (0,13)
0.025 (0,635)
0
8
0.005 (0,13)
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion not to exceed 0.006 (0,15).
D. Falls within JEDEC MO-118
MECHANICAL DATA
MTSS003D JANUARY 1995 REVISED JANUARY 1998
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
DGG (R-PDSO-G**)
PLASTIC SMALL-OUTLINE PACKAGE
4040078 / F 12/97
48 PINS SHOWN
0,25
0,15 NOM
Gage Plane
6,00
6,20
8,30
7,90
0,75
0,50
Seating Plane
25
0,27
0,17
24
A
48
1
1,20 MAX
M
0,08
0,10
0,50
0
8
56
14,10
13,90
48
DIM
A MAX
A MIN
PINS **
12,40
12,60
64
17,10
16,90
0,15
0,05
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold protrusion not to exceed 0,15.
D. Falls within JEDEC MO-153
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