NL74VCXH16240
Low-Voltage 1.8/2.5/3.3V
16-Bit Buffer
With 3.6V–Tolerant Inputs and Outputs
(3–State, Inverting)
The NL74VCXH16240 is an advanced performance, inverting
16–bit buffer. It is designed for very high–speed, very low–power
operation in 1.8V, 2.5V or 3.3V systems.
When operating at 2.5V (or 1.8V) the part is designed to tolerate
voltages it may encounter on either inputs or outputs when interfacing
to 3.3V busses. It is guaranteed to be over–voltage tolerant to 3.6V.
The NL74VCXH16240 is nibble controlled with each nibble
functioning identically, but independently. The control pins may be
tied together to obtain full 16–bit operation. The 3–state outputs are
controlled by an Output Enable (OEn) input for each nibble. When
OEn is LOW, the outputs are on. When OEn is HIGH, the outputs are
in the high impedance state. The data inputs include active bushold
circuitry, eliminating the need for external pull–up resistors to hold
unused or floating inputs at a valid logic state.
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1
TSSOP–48
DT SUFFIX
CASE 1201
MARKING DIAGRAM
48
•
Designed for Low Voltage Operation: VCC = 1.65–3.6V
•
3.6V Tolerant Inputs and Outputs
•
High Speed Operation: 2.5ns max for 3.0 to 3.6V
•
•
•
•
•
•
•
3.0ns max for 2.3 to 2.7V
6.0ns max for 1.65 to 1.95V
Static Drive:
±24mA
Drive at 3.0V
±18mA
Drive at 2.3V
±6mA
Drive at 1.65V
Supports Live Insertion and Withdrawal
Includes Active Bushold to Hold Unused or Floating Inputs at a Valid
Logic State
IOFF Specification Guarantees High Impedance When VCC = 0V†
Near Zero Static Supply Current in All Three Logic States (20µA)
Substantially Reduces System Power Requirements
Latchup Performance Exceeds
±300mA
@ 125°C
ESD Performance: Human Body Model >2000V; Machine Model
>200V
1
NL74VCXH16240DT
AWLYYWW
A
WL
YY
WW
= Assembly Location
= Wafer Lot
= Year
= Work Week
PIN NAMES
Pins
OEn
D0–D15
O0–O15
Function
Output Enable Inputs
Inputs
Outputs
†NOTE: To ensure the outputs activate in the 3–state condition, the output
enable pins should be connected to VCC through a pull–up resistor. The
value of the resistor is determined by the current sinking capability of the
output connected to the OE pin.
ORDERING INFORMATION
Device
NL74VCXH16240DT
NL74VCXH16240DTR
Package
TSSOP
TSSOP
Shipping
39 / Rail
2500 / Reel
©
Semiconductor Components Industries, LLC, 2000
1
May, 2000 – Rev. 0
Publication Order Number:
NL74VCXH16240/D
NL74VCXH16240
OE1 1
O0 2
O1 3
GND 4
O2 5
O3 6
VCC 7
O4 8
O5 9
GND 10
O6 11
O7 12
O8 13
O9 14
GND 15
O10 16
O11 17
VCC 18
O12 19
O13 20
GND 21
O14 22
O15 23
OE4 24
48 OE2
47 D0
46 D1
45 GND
44 D2
43 D3
42 VCC
41 D4
40 D5
39 GND
38 D6
37 D7
36 D8
35 D9
34 GND
33 D10
32 D11
31 VCC
30 D12
29 D13
28 GND
27 D14
26 D15
25 OE3
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
OE1
48
OE2
25
OE3
24
OE4
47
46
44
43
41
40
38
37
36
35
33
32
30
29
27
26
1
1
1
1
OE1
OE2
1
48
OE3
OE4
25
24
D0:3
O0:3
D8:11
O8:11
D4:7
O4:7
D12:15
O12:15
One of Four
Figure 2. Logic Diagram
EN1
EN2
EN3
EN4
1
1
∇
2
3
5
6
8
9
11
2
∇
3
∇
12
13
14
16
4
∇
17
19
20
22
23
Figure 1. 48–Lead Pinout
(Top View)
O0
O1
O2
O3
O4
O5
O6
O7
O8
O9
O10
O11
O12
O13
O14
O15
OE1
L
L
H
D0:3
L
H
X
O0:3
H
L
Z
OE2
L
L
H
D4:7
L
H
X
O4:7
H
L
Z
OE3
L
L
H
D8:11
L
H
X
O8:11
H
L
Z
OE4
L
L
H
D12:15
L
H
X
O12:15
H
L
Z
H = High Voltage Level; L = Low Voltage Level; Z = High Impedance State; X = High or Low Voltage Level and Transitions Are Acceptable, for
ICC reasons, DO NOT FLOAT Inputs
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NL74VCXH16240
ABSOLUTE MAXIMUM RATINGS*
Symbol
VCC
VI
VO
Parameter
DC Supply Voltage
DC Input Voltage
DC Output Voltage
Value
–0.5 to +4.6
–0.5
≤
VI
≤
+4.6
–0.5
≤
VO
≤
+4.6
–0.5
≤
VO
≤
VCC + 0.5
IIK
IOK
DC Input Diode Current
DC Output Diode Current
–50
–50
+50
IO
ICC
IGND
TSTG
DC Output Source/Sink Current
DC Supply Current Per Supply Pin
DC Ground Current Per Ground Pin
Storage Temperature Range
±50
±100
±100
–65 to +150
Output in 3–State
Note 1.; Outputs Active
VI < GND
VO < GND
VO > VCC
Condition
Unit
V
V
V
V
mA
mA
mA
mA
mA
mA
°C
* Absolute maximum continuous ratings are those values beyond which damage to the device may occur. Exposure to these conditions or
conditions beyond those indicated may adversely affect device reliability. Functional operation under absolute–maximum–rated conditions
is not implied.
1. IO absolute maximum rating must be observed.
RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
VI
VO
IOH
IOL
IOH
IOL
IOH
IOL
TA
∆t/∆V
Supply Voltage
Input Voltage
Output Voltage
HIGH Level Output Current, VCC = 3.0V – 3.6V
LOW Level Output Current, VCC = 3.0V – 3.6V
HIGH Level Output Current, VCC = 2.3V – 2.7V
LOW Level Output Current, VCC = 2.3V – 2.7V
HIGH Level Output Current, VCC = 1.65 – 1.95V
LOW Level Output Current, VCC = 1.65 – 1.95V
Operating Free–Air Temperature
Input Transition Rise or Fall Rate, VIN from 0.8V to 2.0V, VCC = 3.0V
–40
0
(Active State)
(3–State)
Parameter
Operating
Data Retention Only
Min
1.65
1.2
–0.3
0
0
Typ
3.3
3.3
Max
3.6
3.6
3.6
VCC
3.6
–24
24
–18
18
–6
6
+85
10
Unit
V
V
V
mA
mA
mA
mA
mA
mA
°C
ns/V
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NL74VCXH16240
DC ELECTRICAL CHARACTERISTICS
TA = –40°C to +85°C
Symbol
VIH
Characteristic
HIGH Level Input Voltage (Note 2.)
Condition
1.65V
≤
VCC < 2.3V
2.3V
≤
VCC
≤
2.7V
2.7V < VCC
≤
3.6V
VIL
LOW Level Input Voltage (Note 2.)
1.65V
≤
VCC < 2.3V
2.3V
≤
VCC
≤
2.7V
2.7V < VCC
≤
3.6V
VOH
HIGH Level Output Voltage
1.65V
≤
VCC
≤
3.6V; IOH = –100µA
VCC = 1.65V; IOH = –6mA
VCC = 2.3V; IOH = –6mA
VCC = 2.3V; IOH = –12mA
VCC = 2.3V; IOH = –18mA
VCC = 2.7V; IOH = –12mA
VCC = 3.0V; IOH = –18mA
VCC = 3.0V; IOH = –24mA
VOL
LOW Level Output Voltage
1.65V
≤
VCC
≤
3.6V; IOL = 100µA
VCC = 1.65V; IOL = 6mA
VCC = 2.3V; IOL = 12mA
VCC = 2.3V; IOL = 18mA
VCC = 2.7V; IOL = 12mA
VCC = 3.0V; IOL = 18mA
VCC = 3.0V; IOL = 24mA
II
II(HOLD)
Input Leakage Current
Minimum Bushold Input Current
1.65V
≤
VCC
≤
3.6V; 0V
≤
VI
≤
3.6V
VCC = 3.0V, VIN = 0.8V
VCC = 3.0V, VIN = 2.0V
VCC = 2.3V, VIN = 0.7V
VCC = 2.3V, VIN = 1.6V
VCC = 1.65V, VIN = 0.57V
VCC = 1.65V, VIN = 1.07V
II (OD)
Minimum Bushold Over–Drive
Current
C rrent Needed to Change State
VCC = 3.6V, (Note 3.)
VCC = 3.6V, (Note 4.)
VCC = 2.7V, (Note 3.)
VCC = 2.7V, (Note 4.)
VCC = 1.95V, (Note 3.)
VCC = 1.95V, (Note 4.)
IOZ
IOFF
ICC
3–State Output Current
Power–Off Leakage Current
Quiescent Supply Current (Note 5.)
1.65V
≤
VCC
≤
3.6V; 0V
≤
VO
≤
3.6V;
VI = VIH or VIL
VCC = 0V; VI or VO = 3.6V
1.65V
≤
VCC
≤
3.6V; VI = GND or VCC
1.65V
≤
VCC
≤
3.6V; 3.6V
≤
VI, VO
≤
3.6V
∆I
CC
Increase in ICC per Input
2.7V < VCC
≤
3.6V; VIH = VCC – 0.6V
2. These values of VI are used to test DC electrical characteristics only.
3. An external driver must source at least the specified current to switch from LOW–to–HIGH
4. An external driver must source at least the specified current to switch from HIGH–to–LOW
5. Outputs disabled or 3–state only.
75
–75
45
–45
25
–25
450
–450
300
–300
200
–200
±10
10
20
±20
750
µA
µA
µA
µA
µA
µA
VCC – 0.2
1.25
2.0
1.8
1.7
2.2
2.4
2.2
0.2
0.3
0.4
0.6
0.4
0.4
0.55
±5.0
µA
µA
V
Min
0.65 x VCC
1.6
2.0
0.35 x VCC
0.7
0.8
V
V
Max
Unit
V
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NL74VCXH16240
AC CHARACTERISTICS
(Note 6.; tR = tF = 2.0ns; CL = 30pF; RL = 500Ω)
Limits
TA = –40°C to +85°C
VCC = 3.0V to 3.6V
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tOSHL
tOSLH
Parameter
Propagation Delay
Input to Output
Output Enable Time to
High and Low Level
Output Disable Time From
High and Low Level
Output–to–Output Skew
(Note 7.)
Waveform
1
2
2
Min
0.8
0.8
0.8
0.8
0.8
0.8
Max
2.5
2.5
3.5
3.5
3.5
3.5
0.5
0.5
VCC = 2.3V to 2.7V
Min
1.0
1.0
1.0
1.0
1.0
1.0
Max
3.0
3.0
4.1
4.1
3.8
3.8
0.5
0.5
VCC = 1.65 to 1.95V
Min
1.5
1.5
1.5
1.5
1.5
1.5
Max
6.0
6.0
8.2
8.2
7.8
7.8
0.75
0.75
Unit
ns
ns
ns
ns
6. For CL = 50pF, add approximately 300ps to the AC maximum specification.
7. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device.
The specification applies to any outputs switching in the same direction, either HIGH–to–LOW (tOSHL) or LOW–to–HIGH (tOSLH); parameter
guaranteed by design.
DYNAMIC SWITCHING CHARACTERISTICS
TA = +25°C
Symbol
VOLP
Characteristic
Dynamic LOW Peak Voltage
(Note 8.)
Condition
VCC = 1.8V, CL = 30pF, VIH = VCC, VIL = 0V
VCC = 2.5V, CL = 30pF, VIH = VCC, VIL = 0V
VCC = 3.3V, CL = 30pF, VIH = VCC, VIL = 0V
VOLV
Dynamic LOW Valley Voltage
(Note 8.)
VCC = 1.8V, CL = 30pF, VIH = VCC, VIL = 0V
VCC = 2.5V, CL = 30pF, VIH = VCC, VIL = 0V
VCC = 3.3V, CL = 30pF, VIH = VCC, VIL = 0V
VOHV
Dynamic HIGH Valley Voltage
(Note 9.)
VCC = 1.8V, CL = 30pF, VIH = VCC, VIL = 0V
VCC = 2.5V, CL = 30pF, VIH = VCC, VIL = 0V
Typ
0.25
0.6
0.8
–0.25
–0.6
–0.8
1.5
1.9
V
V
Unit
V
VCC = 3.3V, CL = 30pF, VIH = VCC, VIL = 0V
2.2
8. Number of outputs defined as “n”. Measured with “n–1” outputs switching from HIGH–to–LOW or LOW–to–HIGH. The remaining output is
measured in the LOW state.
9. Number of outputs defined as “n”. Measured with “n–1” outputs switching from HIGH–to–LOW or LOW–to–HIGH. The remaining output is
measured in the HIGH state.
CAPACITIVE CHARACTERISTICS
Symbol
CIN
COUT
CPD
Parameter
Input Capacitance
Output Capacitance
Power Dissipation Capacitance
Condition
Note 10.
Note 10.
Note 10., 10MHz
Typical
6
7
20
Unit
pF
pF
pF
10. VCC = 1.8, 2.5 or 3.3V; VI = 0V or VCC.
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