ETC 74LVXC3245MTR

74LVXC3245
OCTAL DUAL SUPPLY BUS TRANSCEIVER
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HIGH SPEED: tPD = 8ns (MAX.) at TA=25°C
VCCA = 3.3V VCCB = 5.0V
LOW POWER DISSIPATION:
ICCA = ICCB = 5µA(MAX.) at TA=25°C
LOW NOISE: VOLP =0.3V (TYP.) at
VCCA=3.3V
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 24mA (MIN)
BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL
OPERATING VOLTAGE RANGE:
VCCA(OPR) =2.7V to 3.6V (1.2V Data Retention)
VCCB(OPR) =2.7V to 5.5V (1.2V Data Retention)
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES C3245
IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The 74LVXC3245 is a dual supply 8 bit
configurable low voltage CMOS OCTAL BUS
TRANSCEIVER fabricated with sub-micron silicon
gate and double-layer metal wiring C2MOS
tecnology. Designed for use as an interface
between a 3.3V bus and a 3.3V to 5V bus in a
mixed 3.3V/5V supply sistems, it achieves high
speed operation while maintaining the CMOS low
power dissipation.
SOP
TSSOP
ORDER CODES
PACKAGE
TUBE
T&R
SOP
TSSOP
74LVXC3245M
74LVXC3245MTR
74LVXC3245TTR
This IC is intended for two-way asynchronous
communication between data buses and the
direction of data transmission is determined by
DIR input. The enable input G can be used to
disable the device so that the buses are effectively
isolated.
The A-port interfaces with the 3V bus, the B-port
with the 5V bus.
All inputs are equipped with protection circuits
against static discharge, giving them 2KV ESD
immunity and transient excess voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
February 2001
1/10
74LVXC3245
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
SYMBOL
NAME QND FUNCTION
2
3, 4, 5, 6, 7,
8, 9, 10
21, 20, 19,
18, 17, 16,
15, 14
22
11, 12, 13
23
1
DIR
A1 to A8
Directional Control
Data Inputs/Outputs
B1 to B8
Data Inputs/Outputs
G
GND
NC
VCCA
Output Enable Input
Ground (0V)
Not Connected
Positive Supply Voltage
24
VCCB
Positive Supply Voltage
TRUTH TABLE
INPUTS
FUNCTION
OUTPUT
G
DIR
A BUS
B BUS
L
L
OUTPUT
INPUT
A= B
L
H
H
X
INPUT
Z
OUTPUT
Z
B= A
Z
X=Don’t care; Z=High Impedance
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VCCA
Supply Voltage
-0.5 to +7.0
V
VCCB
Supply Voltage
-0.5 to +7.0
V
DC Input Voltage
-0.5 to VCCA + 0.5
V
VI/OA
DC I/O Voltage
V
VI/OB
DC I/O Voltage
-0.5 to VCCA + 0.5
-0.5 to VCCB + 0.5
VI
V
IIK
DC Input Diode Current
± 20
mA
IOK
DC Output Diode Current
± 50
mA
IOA
DC Output Current
± 50
mA
IOB
DC Output Current
± 50
mA
ICCA
DC VCC or Ground Current
DC VCC or Ground Current
± 200
mA
± 100
mA
ICCB
Pd
Power Dissipation
Tstg
Storage Temperature
TL
Lead Temperature (10 sec)
180
mW
-65 to +150
°C
300
°C
Absolute Maximum Rating are those value beyond which damage to the device may occour. Functional operation under these condition is
not implied
(*) 500mW: ≅ 65°C derated to 300mW by 10mW/°C: 65°C to 85°C
2/10
74LVXC3245
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Value
Unit
2.7 to 3.6
V
VCCA
Supply Voltage (note 1)
VCCB
Supply Voltage (note 1)
2.7 to 5.5
V
Input Voltage
0 to VCCA
0 to VCCA
V
0 to VCCB
-40 to 85
V
°C
0 to 10
ns/V
VI
VI/OA
I/O Voltage
VI/OB
I/O Voltage
Top
dt/dv
Operating Temperqture
Input Rise and Fall Time (note 2)
V
1) VIN from 30% to 70% of VCC
2) VCCA = 2.7 to 3.6V; VCCB = 2.7 to 5.5V;
DC SPECIFICATION FOR VCCA
Test Condit ion
Symbol
V IHA
VILA
VOHA
VOLA
Parameter
High Level Input Voltage
Low Level Input Voltage
High Level Output
Voltage
Low Level Output
Voltage
Min.
3.0
3.6
5.5
3.0
3.6
5.5
Typ.
-40 to 85 °C
Max.
2.0
2.0
2.0
Min.
2.0
2.0
2.0
0.8
0.8
0.8
V
0.8
0.8
0.8
3.0
3.0
IO=-100 µA
2.9
2.99
2.9
3.0
IO=-12 mA
2.56
2.85
2.46
3.0
3.0
IO=-24 mA
2.35
2.65
2.25
2.7
3.0
IO=-12 mA
2.3
2.5
2.2
2.7
4.5
IO=-24 mA
2.1
3.0
3.0
IO=100 µA
0.0
0.1
0.1
3.0
3.0
IO=24 mA
0.21
0.36
0.44
2.7
3.0
IO=12 mA
0.11
0.36
0.44
2.7
4.5
IO=24 mA
0.22
0.42
0.5
VI = VCC or GND
VIA = VIHA or VILA
VIB = VIHB or VILB
V I/OA = VCCA or GND
2.3
Unit
Max.
3.0
V
V
2.0
V
± 0.1
±1
µA
± 0.5
±5
µA
VIA = VCCA or GND
VIB = VCCB or GND
5
50
µA
Open
VIA = VCCA or GND
G= DIR = V CCA
VIB = Open
5
50
µA
5.5
VIA = VCCA - 0.6V
VIB = VCCB or GND
0.35
0.5
mA
Input Leakage Current
3.6
5.5
IOZA
High Impedance Output
Leakage Current
3.6
5.5
ICCtA
Quiescent Supply
Current
3.6
5.5
ICCtAF
Quiescent VCCA Supply
Current as B Port Floats
3.6
∆ICCtA
Maximum Quiescent
Supply Current / Input
(An, DIR, G)
3.6
IIA
TA = 25 °C
VCCA VCCB
(V)
(V)
2.7
3.0
3.6
2.7
3.0
3.6
Value
3/10
74LVXC3245
DC SPECIFICATION FOR VCCB
Test Condit ion
Symbol
V IHB
VILB
VOHB
VOLB
Parameter
High Level Input Voltage
Low Level Input Voltage
High Level Output
Voltage
Low Level Output
Voltage
Value
TA = 25 °C
VCCA VCCB
(V)
(V)
Min.
Typ.
-40 to 85 °C
Max.
Min.
Max.
2.7
3.0
3.0
3.6
2.0
2.0
2.0
2.0
3.6
2.7
3.0
3.6
5.5
3.0
3.6
5.5
3.85
3.85
3.0
3.0
IO=-100 µA
2.9
3.0
2.9
3.0
3.0
IO=-12 mA
2.56
2.85
2.46
3.0
3.0
IO=-24 mA
2.35
2.65
2.25
3.0
4.5
IO=-24 mA
3.86
4.25
3.76
3.0
3.0
IO=100 µA
0.00
0.1
0.1
3.0
3.0
IO=24 mA
0.21
0.36
0.44
0.18
0.8
0.8
1.65
Unit
V
0.8
0.8
1.65
V
V
V
3.0
4.5
IO=24 mA
0.36
0.44
Input Leakage Current
3.6
5.5
VI = VCCA or GND
± 0.1
±1
µA
IOZB
High Impedance Output
Leakage Current
3.6
5.5
VIA = VIHA or VILA
V I/OB = VCCB or GND
± 0.5
±5
µA
ICCtB
Quiescent Supply
Current
3.6
5.5
VIA = VCCA or GND
VIB = VCCB or GND
5
50
µA
∆ICCtB
Maximum Quiescent
Supply Current / Input
3.6
5.5
VIA = VCCA or GND
VIB = VCCB - 2.1V
1.35
1.5
mA
IIB
DINAMIC SWITCHING CHARACTERISTICS
Test Condit ion
Symbol
VOLPA
VOLPB
VIHDA
VILDA
VIHDB
VILDB
Parameter
Dynamic Low Level
Quiet Output (note 1, 2)
Dynamic Low Level
Quiet Output (note 1, 2)
Dynamic High Voltage
Input (note 1, 3)
Dynamic Low Voltage
Input (note 1, 3)
Dynamic High Voltage
Input (note 1, 3)
Dynamic Low Voltage
Input (note 1, 3)
VCCA VCCB
(V)
(V)
3.3
3.3
3.3
3.3
5.5
5.5
5.5
5.5
3.3
5.5
3.3
5.5
3.3
5.5
3.3
5.5
Value
TA = 25 °C
Min.
-1.2
-0.8
-40 to 85 °C
Typ.
Max.
1.0
-0.6
0.8
-0.5
1.5
1.2
2
0.8
Max.
V
V
V
V
2
0.8
Min.
Unit
V
V
1) Worst case package
2) Max number of output defined as (n). Data inputs are driven 0V to 3.3V, (n-1) outputs switching and one output at GND
3) Max number of data inputs (n) switching. (n-1) switching 0V to 3.3V. Inputs under test switching: 3V to threshold (VILD). 0V to threshold
(VIHD) f = 1MHz
4/10
74LVXC3245
AC ELECTRICAL CHARACTERISTICS
Value
Unit
VCCB = 5 ± 0.5V
Symbol
tPLH
tPHL
tPZL
tPZH
tPLZ
tPHZ
tPLH
tPHL
tPZL
tPZH
tPLZ
tPHZ
tOSLH
tOSHL
Parameter
TA = 25 °C
VCCB = 3 ± 0.3V
-40 to 85 °C
-40 to 85 °C
-40 to 85 °C
Min.
Typ.
(*)
Max.
Min.
Max.
Min.
Typ.
(**)
Max.
Min.
Max.
Propagation Delay Time
An to Bn
1.0
4.8
8.0
1.0
8.5
1.0
5.5
8.5
1.0
9.0
1.0
3.9
6.5
1.0
7.0
1.0
5.2
8.0
1.0
8.5
Output Enable Time
G to Bn
1.0
4.7
8.0
1.0
8.5
1.0
6.0
9.0
1.0
9.5
1.0
4.8
8.5
1.0
9.0
1.0
6.1
9.5
1.0
10.0
Output Disable Time
G to Bn
1.0
4.0
8.0
1.0
8.5
1.0
6.3
9.5
1.0
10.0
1.0
3.8
7.5
1.0
8.0
1.0
4.5
8.0
1.0
8.5
Propagation Delay Time
Bn to An
1.0
3.8
6.5
1.0
7.0
1.0
4.4
7.0
1.0
7.5
1.0
4.3
7.5
1.0
8.0
1.0
5.1
7.5
1.0
8.0
Output Enable Time
G to An
1.0
5.9
9.5
1.0
10.0
1.0
6.4
10.0
1.0
10.5
1.0
5.4
9.0
1.0
9.5
1.0
5.8
9.0
1.0
9.5
Output Disable Time
G to An
1.0
4.6
9.5
1.0
10.0
1.0
5.2
9.5
1.0
10.0
1.0
3.1
6.5
1.0
7.0
1.0
3.4
6.5
1.0
7.0
1.0
1.5
1.5
1.5
Output To Output Skew
Time (note1, 2)
1.5
1.5
ns
ns
ns
ns
ns
ns
ns
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device
switching in the same direction, either HIGH or LOW (tOSLH = | tPLHm - tPLHn|, tOSHL = | tPHLm - tPHLn|
2) Parameter guaranteed by design
(*) Typical values at VCCA = 3.3V, VCCB = 5.0V
(**) Typical values at VCCA = 3.3V, VCCB = 3.3V
CAPACITANCE CHARACTERISTICS
Test Condit ion
Symbol
Parameter
C INA
Input Capacitance
CI/O
Input/Output
Capacitance
Dynamic Low Level
Quiet Output (note 1)
A to B
Dynamic Low Level
Quiet Output (note 1)
B to A
C PD
C PD
VCCA VCCB
(V)
(V)
Value
TA = 25 °C
Min.
Typ.
Max.
-40 to 85 °C
Min.
Unit
Max.
open
open
4.5
V
3.3
5.0
10
V
3.3
5.0
55
V
3.3
5.0
40
V
1) CPD is defined as the value of the IC’s internal equivqlent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average current cqn be obtqined by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/8 (per circuit)
5/10
74LVXC3245
TEST CIRCUIT
TEST
tPLH, tPHL
SWITCH
Open
tPZLH, tPLZ
2V CC
tPZH, tPHZ
Open
C L = 50pF or equivalent (includes jig and probe capacitance)
R L = R1 = 500Ω or equivalent
R T = ZOUT of pulse generator (typically 50Ω)
WAVEFORM 1: PROPAGATION DELAYS (f=1MHz; 50% duty cycle)
6/10
74LVXC3245
WAVEFORM 2: OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle)
7/10
74LVXC3245
SO-24 MECHANICAL DATA
mm
DIM.
MIN.
inch
TYP.
MAX.
A
MIN.
TYP.
MAX.
2.65
a1
0.10
0.104
0.20
a2
0.004
0.007
2.45
0.096
b
0.35
0.49
0.013
0.019
b1
0.23
0.32
0.009
0.012
C
0.50
0.020
c1
45 (typ.)
D
15.20
15.60
0.598
0.614
E
10.00
10.65
0.393
0.420
e
1.27
0.05
e3
13.97
0.55
F
7.40
7.60
0.291
0.299
L
0.50
1.27
0.19
0.050
S
8 (max.)
L
s
e3
b1
e
a1
b
A
a2
C
c1
E
D
13
1
12
F
24
P013T
8/10
74LVXC3245
TSSOP24 MECHANICAL DATA
mm
DIM.
MIN.
inch
TYP.
MAX.
A
MIN.
TYP.
MAX.
1.1
0.433
A1
0.05
0.10
0.15
0.002
0.004
0.006
A2
0.85
0.9
0.95
0.335
0.354
0.374
b
0.19
0.30
0.0075
0.0118
c
0.09
0.2
0.0035
0.0079
D
7.7
7.8
7.9
0.303
0.307
0.311
E
6.25
6.4
6.5
0.246
0.252
0.256
E1
4.3
4.4
4.48
0.169
0.173
0.176
e
0.65 BSC
0.0256 BSC
K
0o
4o
8o
0o
4o
8o
L
0.50
0.60
0.70
0.020
0.024
0.028
A
A2
A1
b
K
e
L
E
c
D
E1
PIN 1 IDENTIFICATION
1
9/10
74LVXC3245
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consequences of use of such information nor for any infringe ment of patents or other righ ts of third parties which may result from
its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this pub lication are subject to change without notice. Thi s pub lication supersedes and replaces all information
previously supplied. STMicroelectronics prod ucts are not authori zed for use as critical components in life suppo rt devices or
systems without express written approval of STMicroelectronics.
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