INTEGRATED CIRCUITS
74ALVCH16540
2.5V/3.3V 16-bit buffer/line driver,
inverting, 5V input tolerant (3-State)
Product specification
Supersedes data of 1996 Feb 07
IC24 Data Handbook
1997 Aug 11
Philips
Semiconductors
Philips Semiconductors
Product specification
16-bit buffer/line driver, inverting,
5V input tolerant (3-State)
74ALVCH16540
FEATURES
•
Wide supply voltage range of 1.2 V to 3.6 V
•
Complies with JEDEC standard no. 8-1A
•
CMOS low power consumption
•
MULTIBYTE
TM
flow-through standard pin-out architecture
•
Low inductance multiple V
CC
and ground pins for minimum noise
and ground bounce
PIN CONFIGURATION
1OE
1
1Y0
1Y1
GND
1Y2
1Y3
V
CC
1Y4
1Y5
1
2
3
4
5
6
7
8
9
48 1OE
2
47 1A0
46 1A1
45 GND
44 1A2
43 1A3
42 V
CC
41 1A4
40 1A5
39 GND
38 1A6
37 1A7
36 2A0
35 2A1
34 GND
33 2A2
32 2A3
31 V
CC
30 2A4
29 2A5
28 GND
27 2A6
26 2A7
25 2OE
2
•
Direct interface with TTL levels
•
Bus hold on all data inputs eliminates the need for external pull-up
resistors to hold unused inputs
•
Output drive capability 50Ω transmission lines @ 85°C
DESCRIPTION
The 74ALVCH16540 is a high-performance, low-power, low-voltage,
Si-gate CMOS device, superior to most advanced CMOS
compatible TTL families.
The 74ALVCH16540 is a 16-bit inverting buffer/line driver with
3-State outputs. The 3-State outputs are controlled by the output
enable inputs 1OE
n
and 2OE
n
. A HIGH on nOE
n
causes the outputs
to assume a high impedance OFF-state.
Active bus hold circuitry is provided to hold unused or floating data
inputs at a valid logic level. This feature eliminates the need for
external pull-up or pull-down resistors. The device can be used as
four 4-bit buffers, two 8-bit buffers or one 16-bit buffer.
GND 10
1Y6 11
1Y7 12
2Y0 13
2Y1 14
GND 15
2Y2 16
2Y3 17
V
CC
18
2Y4 19
2Y5 20
GND 21
2Y6 22
2Y7 23
2OE
1
24
SW00108
QUICK REFERENCE DATA
GND = 0V; T
amb
= 25°C; t
r
= t
f
≤
2.5ns
SYMBOL
PARAMETER
Propagation delay
1An to 1Yn;
2An to 2Yn
Input capacitance
Power dissipation capacitance per buffer
V
I
= GND to V
CC1
Outputs enabled
Outputs disabled
C
L
= 50pF
V
CC
= 3.3V
C
L
= 30pF
V
CC
= 2.5V
CONDITIONS
TYPICAL
1.8
1.8
5.0
26
5
UNIT
ns
ns
pF
pF
pF
t
PHL
/t
PLH
C
I
C
PD
NOTES:
1. C
PD
is used to determine the dynamic power dissipation (P
D
in
mW):
P
D
= C
PD
×
V
CC2
×
f
i
+
S
(C
L
×
V
CC2
×
f
o
) where:
f
i
= input frequency in MHz; C
L
= output load capacitance in pF;
f
o
= output frequency in MHz; V
CC
= supply voltage in V;
S
(C
L
×
V
CC2
×
f
o
) = sum of outputs.
ORDERING INFORMATION
PACKAGES
48-Pin Plastic SSOP Type III
48-Pin Plastic TSSOP Type II
TEMPERATURE RANGE
–40°C to +85°C
–40°C to +85°C
OUTSIDE NORTH AMERICA
74ALVCH16540 DL
74ALVCH16540 DGG
NORTH AMERICA
ACH16540 DL
ACH16540 DGG
DWG NUMBER
SOT370-1
SOT362-1
1997 Aug 11
2
853-2020 18266
Philips Semiconductors
Product specification
16-bit buffer/line driver, inverting,
5V input tolerant (3-State)
74ALVCH16540
PIN DESCRIPTION
PIN NUMBER
1, 24
2, 3, 5, 6, 8, 9,
11, 12
13, 14, 16, 17,
19, 20, 22, 23
4, 10, 15, 21,
28, 34, 39, 45
7, 18, 31, 42
25, 48
36, 35, 33, 32,
30, 29, 27, 26
47, 46, 44, 43,
41, 40, 38, 37
SYMBOL
nOE
1
1Y0 to 1Y7
Data outputs
2Y0 to 2Y7
GND
V
CC
nOE
2
2A0 to 2A7
Data inputs
1A0 to 1A7
Ground (0V)
Positive supply voltage
Output enable input
(active LOW)
NAME AND FUNCTION
Output enable input
(active LOW)
LOGIC SYMBOL (IEEE/IEC)
1OE
1
1OE
2
2OE
1
2OE
2
1A0
1A1
1A2
1A3
1A4
1A5
1A6
1A7
2A0
2A1
2A2
1
48
24
25
47
46
44
43
41
40
38
37
36
35
33
32
30
29
27
26
1
2
∇
1
∇
2
3
5
6
8
9
11
12
13
14
16
17
19
20
22
23
&
&
EN1
EN2
1
1Y0
1Y1
1Y2
1Y3
1Y4
1Y5
1Y6
1Y7
2Y0
2Y1
2Y2
2Y3
2Y4
2Y5
2Y6
2Y7
LOGIC SYMBOL
1A0
47
2
1Y0
2A0
36
13
2Y0
2A3
2A4
2A5
2A6
2Y1
2A7
1A1
46
3
1Y1
2A1
35
14
1A2
44
5
1Y2
2A2
33
16
SW00110
2Y2
1A3
43
6
1Y3
2A3
32
17
2Y3
BUS HOLD CIRCUIT
V
CC
1A4
41
8
1Y4
2A4
30
19
2Y4
1A5
40
9
1Y5
2A5
29
20
2Y5
1A6
38
11
1Y6
2A6
27
22
2Y6
Data Input
2Y7
To internal circuit
1A7
37
12
1Y7
2A7
26
23
1OE
1
1OE
2
1
48
2OE
1
2OE
2
24
25
SW00109
SW00044
FUNCTION TABLE
INPUTS
nOE
1
L
L
X
H
nOE
2
L
L
H
X
nAn
L
H
X
X
OUTPUT
nYn
H
L
Z
Z
H = HIGH voltage level
L = LOW voltage level
X = don’t care
Z = high impedance OFF-state
1997 Aug 11
3
Philips Semiconductors
Product specification
16-bit buffer/line driver, inverting,
5V input tolerant (3-State)
74ALVCH16540
RECOMMENDED OPERATING CONDITIONS
LIMITS
SYMBOL
PARAMETER
DC supply voltage 2.5V range (for max. speed
performance)
V
CC
DC supply voltage 3.3V range (for max. speed
performance)
DC supply voltage (for low-voltage applications)
DC Input voltage range
V
I
V
O
T
amb
t
r
, t
f
DC Input voltage range
DC output voltage range
Operating free-air temperature range
Input rise and fall times
V
CC
= 2.3 to 3.0V
V
CC
= 3.0 to 3.6V
For data input pins
For control pins
CONDITIONS
MIN
2.3
3.0
1.2
0
0
0
–40
0
0
MAX
2.7
3.6
3.6
V
CC
5.5
V
CC
+85
20
10
V
°C
ns/V
V
V
UNIT
ABSOLUTE MAXIMUM RATINGS
1, 2
In accordance with the Absolute Maximum Rating System (IEC 134)
Voltages are referenced to GND (ground = 0V)
SYMBOL
V
CC
I
IK
V
I
I
OK
V
O
I
O
I
GND
, I
CC
T
stg
P
TOT
PARAMETER
DC supply voltage
DC input diode current
g
DC input voltage
DC output diode current
DC output voltage
DC output source or sink current
DC V
CC
or GND current
Storage temperature range
Power dissipation per package
–plastic medium-shrink SO (SSOP)
–plastic mini-pack (TSSOP)
For temperature range: –40 to +125
°C
above +55°C derate linearly with 11.3 mW/K
above +55°C derate linearly with 8 mW/K
V
I
t0
For control pins and data inputs of ALVC
parts
2
For data inputs of ALVCH
V
O
uV
CC
or V
O
t
0
Note 2
V
O
= 0 to V
CC
parts
2
CONDITIONS
RATING
–0.5 to +4.6
–50
–0.5 to +5.5
–0.5 to V
CC
+0.5
"50
–0.5 to V
CC
+0.5
"50
"100
–65 to +150
850
600
mA
V
mA
mA
°C
mW
UNIT
V
mA
V
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability.
2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
1997 Aug 11
4
Philips Semiconductors
Product specification
16-bit buffer/line driver, inverting,
5V input tolerant (3-State)
74ALVCH16540
DC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
Temp = -40°C to +85°C
MIN
V
CC
= 1.2V
V
IH
HIGH level Input voltage
V
CC
= 2.3 to 2.7V
V
CC
= 2.7 to 3.6V
V
CC
= 1.2V
V
IL
LOW level Input voltage
V
CC
= 2.3 to 2.7V
V
CC
= 2.7 to 3.6V
V
CC
= 2.3V; V
I
= V
IH
or V
IL
; I
O
= –1mA
V
CC
= 2.3V; V
I
= V
IH
or V
IL
; I
O
= –8mA
V
OH
HIGH level output voltage
V
CC
= 2.7V; V
I
= V
IH
or V
IL
; I
O
= –12mA
V
CC
= 2.3/3.0V; V
I
= V
IH
or V
IL
; I
O
= –100µA
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= –24mA
V
CC
= 2.3V; V
I
= V
IH
or V
IL
; I
O
= 1mA
V
CC
= 2.3V; V
I
= V
IH
or V
IL
; I
O
= 8mA
V
OL
LOW level output voltage
V
CC
= 2.7V; V
I
= V
IH
or V
IL
; I
O
= 12mA
V
CC
= 2.3/3.0V; V
I
= V
IH
or V
IL
; I
O
= 100µA
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= 24mA
I
I
I
IHZ
/I
ILZ
I
O
OZ
Input leakage current
Input current for common I/O pins
3-State output OFF-state current
3-State output OFF-state current
Quiescent supply current
I
CC
Quiescent supply current
Additional quiescent supply current per
control pin
Additional quiescent supply current per
data I/O pin
Bus hold LOW sustaining current
V
CC
= 3 6V; V
I
= 5 5V or GND
3.6V;
5.5V
V
CC
= 3.6V; V
I
= V
CC
or GND
V
CC
= 3.6V; V
I
= V
CC
or GND
V
CC
= 3.6V; V
I
= V
IH
or V
IL
; V
O
= V
CC
or GND
V
CC
= 2.7V; V
I
= V
IH
or V
IL
; V
O
= V
CC
or GND
V
CC
= 3.6V; V
I
= V
CC
or GND; I
O
= 0
V
CC
= 2.7V; V
I
= V
CC
or GND; I
O
= 0
V
CC
= 2.7V to 3.6V; V
I
= V
CC
–0.6V; I
O
= 0
V
CC
= 2.7V to 3.6V; V
I
= V
CC
–0.6V; I
O
= 0
V
CC
= 2.3V; V
I
= 0.7V
V
CC
= 3.0V; V
I
= 0.8V
IBHH
Bus hold HIGH sustaining current
V
CC
= 2.3V; V
I
= 1.7V
V
CC
= 3.0V; V
I
= 2.0V
IBHLO
Bus hold LOW overdrive current
V
CC
= 2.7V
V
CC
= 3.6V
IBHHO
Bus hold HIGH overdrive current
V
CC
= 2.7V
V
CC
= 3.6V
45
75
–45
–75
300
450
–300
–450
Control pins
Data input pins
"0
1
"0.1
"0.1
"0.1
0.1
0.1
0.2
0.2
5
150
V
CC*
0.3
V
CC*
0.5
V
CC*
0.5
V
CC
*0.2
V
CC
*1.0
0.40
0.60
0.40
0.20
0.55
"5
"5
"15
"10
"5
40
20
500
µA
750
µA
µA
µA
µA
V
V
CC
V
V
CC
1.7
2.0
GND
0.7
0.8
V
V
TYP
1
MAX
UNIT
µA
∆I
CC
IBHL
µA
µA
µA
NOTES:
1. All typical values are at V
CC
= 3.3V and T
amb
= 25°C.
1997 Aug 11
5
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