Philips 74ALVCH162245DGG Datasheet
INTEGRATED CIRCUITS
74ALVCH162245
16-bit bus transceiver with direction pin
and 30Ω termination resistor (3-State)
Product specification 1998 Jun 29
IC24 Data Handbook
Philips Semiconductors Product specification
CPDPower dissipation capacitance per buffer
V
GND to V
1
16-bit bus transceiver with direction pin and
30Ω termination resistor (3-State)
FEA TURES
•Wide supply voltage range of 1.2V to 3.6V
•Complies with JEDEC standard no. 8-1A
•CMOS low power consumption
•MULTIBYTE
•Low inductance multiple V
and ground bounce
TM
flow-through standard pin-out architecture
and ground pins for minimum noise
CC
•Direct interface with TTL levels
•Bus hold on all data inputs
•Integrated 30Ω termination resistor
DESCRIPTION
The 74ALVCH162245 is a 16-bit transceiver featuring non-inverting
3-State bus compatible outputs in both send and receive directions.
The 74ALVCH162245 features two output enable (nOE
easy cascading and two send/receive (nDIR) inputs for direction
control. nOE controls the outputs so that the buses are effectively
isolated. This device can be used as two 8-bit transceivers or one
16-bit transceiver.
The 74ALVCH162245 is designed with 30Ω series resistors in both
HIGH and LOW output states.
The 74ALVCH162245 has active bus hold circuitry which 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.
QUICK REFERENCE DA TA
GND = 0V; T
SYMBOL
t
PHL/tPLH
C
I
C
I/O
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; (CL × V
f
o
= 25°C; tr = tf ≤ 2.5ns
amb
PARAMETER CONDITIONS TYPICAL UNIT
Propagation delay
An to Bn; Bn to An
Input capacitance 4.0 pF
Input/output capacitance 8.0 pF
2
× fi + (CL × V
CC
p
p
2
× fo) where: fi = input frequency in MHz; CL = output load capacitance in pF;
CC
) inputs for
VCC = 2.5V, CL = 30pF
VCC = 3.3V, CL = 50pF
p
PIN CONFIGURATION
=
I
2
× fo) = sum of the outputs.
CC
CC
74AL VCH162245
1OE
SW00198
48
47
1A0
46
1A1
45
GND
44
1A2
43
1A3
42
V
CC2
41
1A4
40
1A5
39
GND
38
1A6
37
1A7
36
2A0
35
2A1
34
GND
33
2A2
32
2A3
31
V
CC2
30
2A4
29
2A5
28
GND
27
2A6
26
2A7
25
2OE
2.4 ns
1
1DIR
2
1B0
3
1B1
GND
4
5
1B2
6
1B3
7
V
CC1
8
1B4
9
1B5
GND
10
11
1B6
12
1B7
13
2B0
14
2B1
15
GND
16
2B2
17
2B3
18
V
CC1
19
2B4
20
2B5
21
GND
2B6
22
2B7
23
24
2DIR
Outputs enabled 27 pF
Outputs disabled 4 pF
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER
48-Pin Plastic SSOP Type III –40°C to +85°C 74ALVCH162245 DL ACH162245 DL SOT370-1
48-Pin Plastic TSSOP Type II –40°C to +85°C 74ALVCH162245 DGG ACH162245 DGG SOT362-1
1998 Jun 29 853-2085 19638
2
Philips Semiconductors Product specification
16-bit bus transceiver with direction pin and
30Ω termination resistor (3-State)
PIN DESCRIPTION
PIN NUMBER SYMBOL NAME AND FUNCTION
1 1DIR Direction control
2, 3, 5, 6, 8, 9,
11, 12
4, 10, 15, 21,
28, 34, 39, 45
7, 18, 31, 42 V
13, 14, 16, 17,
19, 20, 22, 23
24 2DIR Direction control
25 2OE
36, 35, 33, 32,
30, 29, 27, 26
47, 46, 44, 43,
41, 40, 38, 37
48 1OE
LOGIC SYMBOL
1
1DIR
47
1A0
46
1A1
44
1A2
1B0 to 1B7 Data inputs/outputs
GND Ground (0V)
CC
Positive supply voltage
2B0 to 2B7 Data inputs/outputs
Output enable input
(active LOW)
2A0 to 2A7 Data inputs/outputs
1A0 to 1A7 Data inputs/outputs
Output enable input
(active LOW)
24
2DIR
48
1OE
2A0
2A1
2A2
36
35
33
2
1B0
3
1B1
5
1B2
25
2OE
13
2B0
14
2B1
16
2B2
LOGIC SYMBOL (IEEE/IEC)
1OE
1DIR
2OE
2DIR
1A0
1A1
1A2
1A3
1A4
1A5
1A6
1A7
2A0
2A1
2A2
2A3
2A4
2A5
2A6
2A7
48
1
25
24
47
46
44
43
41
40
38
37
36
35
33
32
30
29
27
26
G3
3 EN1 [BA]
3 EN2 [AB]
G6
6 EN4 [BA]
6 EN5 [AB]
1
4
74ALVCH162245
2
1B0
2
5
3
1B1
5
1B2
6
1B3
8
1B4
9
1B5
11
1B6
12
1B7
13
2B0
14
2B1
16
2B2
17
2B3
19
2B4
20
2B5
22
2B6
23
2B7
43
1A3
41
1A4
40
1A5
38
1A6
37 12
1A7
6
1B3
8
1B4
9
1B5
11
1B6
1B7
32
2A3
30
2A4
29
2A5
27
2A6
26 23
2A7
FUNCTION TABLE
INPUTS INPUTS/OUTPUT
nOE nDIR nAn nBn
L L A = B inputs
L H inputs B = A
H X Z Z
H = HIGH voltage level
L = LOW voltage level
X = don’t care
Z = high impedance OFF–state
17
2B3
19
2B4
20
2B5
22
2B6
2B7
SW00197
BUS HOLD CIRCUIT
V
CC
Data Input
SW00196
To internal circuit
SW00044
1998 Jun 29
3
Philips Semiconductors Product specification
SYMBOL
PARAMETER
CONDITIONS
UNIT
V
V
V
DC in ut voltage
V
16-bit bus transceiver with direction pin and
30Ω termination resistor (3-State)
RECOMMENDED OPERATING CONDITIONS
MIN MAX
DC supply voltage 2.5V range (for max. speed
performance @ 30 pF output load)
CC
DC supply voltage 3.3V range (for max. speed
performance @ 50 pF output load)
V
V
O
T
amb
tr, t
DC Input voltage range 0 V
I
DC output voltage range 0 V
Operating free-air temperature range –40 +85 °C
Input rise and fall times
f
VCC = 2.3 to 3.0V
VCC = 3.0 to 3.6V
ABSOLUTE MAXIMUM RATINGS
In accordance with the Absolute Maximum Rating System (IEC 134)
Voltages are referenced to GND (ground = 0V)
SYMBOL
I
GND
V
CC
I
IK
I
I
OK
V
O
I
O
, I
T
stg
DC supply voltage –0.5 to +4.6 V
DC input diode current VI 0 –50 mA
DC output diode current V
DC output voltage Note 1 –0.5 to VCC +0.5 V
DC output source or sink current VO = 0 to V
DC VCC or GND current 100 mA
CC
Storage temperature range –65 to +150 °C
Power dissipation per package
P
TOT
–plastic medium-shrink (SSOP)
–plastic thin-medium-shrink (TSSOP)
NOTE:
1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
PARAMETER CONDITIONS RATING UNIT
p
For data inputs with bus hold
For control pins
VCC or VO 0 50 mA
O
1
CC
1
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
2.3 2.7
3.0 3.6
0
0
74ALVCH162245
LIMITS
CC
CC
20
10
–0.5 to VCC +0.5
–0.5 to +4.6
50 mA
850
600
ns/V
V
V
mW
1998 Jun 29
4
Loading...