Philips 74AVCM162834 Datasheet
INTEGRATED CIRCUITS
74AVCM162834
18-bit registered driver
with inverted register enable with 15 Ω
termination resistors (3-State)
Product specification 1999 Sep 14
Philips Semiconductors Product specification
1
CPDPower dissi ation ca acitance er buffer
V
GND to V
1
F
18-bit registered driver with inverted register enable with
15 Ω termination resistors (3-State)
FEA TURES
•Wide supply voltage range of 1.2 V to 3.6 V
•Complies with JEDEC standard no. 8-1A/5/7.
•CMOS low power consumption
•Input/output tolerant up to 3.6 V
•Low inductance multiple V
and ground bounce
DESCRIPTION
The 74AVCM162834 is an 18-bit universal bus driver. Data flow is
controlled by output enable (OE
(CP).
This product is designed to have an extremely fast propagation
delay and a minimum amount of power consumption.
To ensure the high-impedance state during power up or power
down, OE
Insertion).
should be tied to VCC through a pullup resistor (Live
and GND pins for minimum noise
CC
), latch enable (LE) and clock inputs
PIN CONFIGURATION
1
2
NC
3
Y
0
4
GND
5
Y
1
Y
6
2
V
7
CC
Y
8
3
Y
9
4
10
Y
5
11
GND
12
Y
6
13
Y
7
14
Y
8
15
Y
9
16
Y
10
17
Y
11
18
GND
19
Y
12
20
Y
13
21
Y
14
22
V
CC
23
Y
15
24
Y
16
25
GND
26
Y
17
27
OE
28 29
LE
74A VCM162834
56NC
GND
55
NC
54
A
0
53
GND
52
A
1
A
51
2
V
50
CC
A
49
3
A
48
4
47
A
5
46
GND
45
A
6
44
A
7
43
A
8
42
A
9
41
A
10
40
A
11
39
GND
38
A
12
37
A
13
36
A
14
35
V
CC
34
A
15
33
A
16
32
GND
31
A
17
30
CP
GND
QUICK REFERENCE DA TA
GND = 0 V; T
SYMBOL
t
PHL/tPLH
t
PHL/tPLH
C
I
NOTES:
is used to determine the dynamic power dissipation (PD in µW):
1. C
PD
= CPD × V
P
D
= output frequency in MHz; VCC = supply voltage in V; S (CL × V
f
o
= 25°C; tr = tf ≤ 2.0 ns; CL = 30 pF.
amb
Propagation delay
An to Yn
Propagation delay
LE to Yn;
CP to Yn
Input capacitance 5.0 pF
2
× fi + S (CL × V
CC
ORDERING INFORMATION
56-Pin Plastic Thin Shrink Small Outline (TSSOP) Type II –40°C to +85°C 74AVCM162834 DGG SOT364-1
1999 Sep 14 853–2169 22330
SH00156
PARAMETER CONDITIONS TYPICAL UNIT
p
CC
p
2
PACKAGES
VCC = 1.8 V
VCC = 2.5 V
VCC = 3.3 V
VCC = 1.8 V
VCC = 2.5 V
VCC = 3.3 V
p
× fo) where: fi = input frequency in MHz; CL = output load capacitance in pF;
=
I
CC
CC
2
× fo) = sum of outputs.
TEMPERATURE
RANGE
Outputs enabled 25
Output disabled 6
ORDER CODE
2.6
2.0
1.7
2.9
2.3
1.9
2
ns
ns
p
DRAWING
NUMBER
Philips Semiconductors Product specification
OUTPUTS
18-bit registered driver with inverted register enable with
15 Ω termination resistors (3-State)
PIN DESCRIPTION
PIN NUMBER SYMBOL NAME AND FUNCTION
1, 2, 55 NC No connection
3, 5, 6, 8, 9, 10, 12, 13,
14, 15, 16, 17, 19, 20,
Y0 to Y17Data outputs
21, 23, 24, 26
4, 11, 18, 25, 32, 39, 46,
53, 56
7, 22, 35, 50 V
27 OE
28 LE
GND Ground (0 V)
Positive supply voltage
CC
Output enable input
(active LOW)
Latch enable input
(active LOW)
30 CP Clock input
54, 52, 51, 49, 48, 47,
45, 44, 43, 42, 41, 40,
A0 to A17Data inputs
38, 37, 36, 34, 33, 31
LOGIC SYMBOL
OE
CP
LE
A
0
TO THE 17 OTHER CHANNELS
D
LE
CP
Y
SH00157
0
LOGIC SYMBOL (IEEE/IEC)
27
OE
30
CP
28
LE
3
Y
0
5
Y
1
6
Y
2
8
Y
3
9
Y
4
10
Y
5
12
Y
6
13
Y
7
14
Y
8
15
Y
9
16
Y
10
17
Y
11
19
Y
12
20
Y
13
21
Y
14
23
Y
15
24
Y
16
26
Y
17
FUNCTION TABLE
OE LE CP A
H X X X Z
L L X L L
L L X H H
L H ↑ L L
L H ↑ H H
L H H X Y
L H L X Y
H = HIGH voltage level
L = LOW voltage level
X = Don’t care
Z = High impedance “off” state
↑ = LOW-to-HIGH level transition
NOTES:
1. Output level before the indicated steady-state input conditions
were established, provided that CP is high before LE goes low.
2. Output level before the indicated steady-state input conditions
were established.
EN1
C3
G2
1 ∇ 1
INPUTS
74A VCM162834
2C3
3D
54
A
0
52
A
1
51
A
2
49
A
3
48
A
4
47
A
5
45
A
6
44
A
7
43
A
8
42
A
9
41
A
10
40
A
11
38
A
12
37
A
13
36
A
14
34
A
15
33
A
16
31
A
17
SH00158
1
0
2
0
1999 Sep 14
3
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