OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

74LVXC4245MTR

P1-P3P4-P6P7-P9P10-P12P13-P14
1/14August 2004
■ HIGH SPEED:
t
PD
= 6.5ns (MAX.) at
V
CCA
= 5.0V, V
CCB
= 5.0V
■ LOW POWER DISSIPATION:
I
CCA
= I
CCB
= 5µA(MAX.) at T
A
=25°C
■ LOW NOISE: V
OLP
=0.3V (TYP.) at
V
CCA
=5.0V V
CCB
=3.3V
■ SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
| = I
OL
= 24mA (MIN)
■ BALANCED PROPAGATION DELAYS:
t
PLH
≅ t
PHL
■ OPERATING VOLTAGE RANGE:
V
CCA
(OPR) = 4.5V to 5.5V (1.2V Data Retention)
V
CCB
(OPR) = 2.7V to 5.5V (1.2V Data Retention)
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES C4245
■ IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The 74LVXC4245 is a dual supply 8 bit
configurable low voltage CMOS OCTAL BUS
TRANSCEIVER fabricated with sub-micron silicon
gate and double-layer metal wiring C
2
MOS
technology. Designed for use as an interface
between a 5V bus and a 3.3V to 5V bus in a mixed
5V/3.3V supply systems, it achieves high speed
operation while maintaining the CMOS low power
dissipation.
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 5V bus, the B-port
with the 3.3V to 5V bus.
All inputs are equipped with protection circuits
against static discharge, giving them 2KV ESD
immunity and transient excess voltage.
74LVXC4245
OCTAL DUAL SUPPLY BUS TRANSCEIVER
Figure 1: Pin Connection And IEC Logic Symbols
Table 1: Order Codes
PACKAGE T & R
SOP 74LVXC4245MTR
TSSOP 74LVXC4245TTR
TSSOPSOP
Rev. 4
Obsolete Product(s) - Obsolete Product(s)
74LVXC4245
2/14
Figure 2: Input And Output Equivalent Circuit Table 2: Pin Description
Table 3: Truth Table
X : Don’t Care
Z : High Impedance
Table 4: Absolute maximum ratings
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
PIN N° SYMBOL NAME AND FUNCTION
2 DIR Directional Control
3, 4, 5, 6, 7,
8, 9, 10
A1 to A8 Data Inputs/Outputs
21, 20, 19,
18, 17, 16,
15, 14
B1 to B8 Data Inputs/Outputs
22 G
Output Enable Input
11, 12, 13 GND Ground (0V)
23 NC Not Connected
1V
CCA
Positive Supply Voltage
24 V
CCB
Positive Supply Voltage
INPUTS FUNCTION
OUTPUT
G
DIR A BUS B BUS
L L OUTPUT INPUT A = B
L H INPUT OUTPUT B = A
HXZZZ
Symbol Parameter Value Unit
V
CCA
Supply Voltage
-0.5 to +7.0 V
V
CCB
Supply Voltage
-0.5 to +7.0 V
V
I
DC Input Voltage -0.5 to V
CCA
+ 0.5
V
V
I/OA
DC I/O Voltage -0.5 to V
CCA
+ 0.5
V
V
I/OB
DC I/O Voltage -0.5 to V
CCB
+ 0.5
V
I
IK
DC Input Diode Current
± 20 mA
I
OK
DC Output Diode Current
± 50 mA
I
OA
DC Output Current
± 50 mA
I
OB
DC Output Current
± 50 mA
I
CCA
DC V
CC
or Ground Current
± 200 mA
I
CCB
DC V
CC
or Ground Current
± 100 mA
P
d
Power Dissipation
180 mW
T
stg
Storage Temperature
-65 to +150 °C
T
L
Lead Temperature (10 sec)
300 °C
Obsolete Product(s) - Obsolete Product(s)
74LVXC4245
3/14
Table 5: Recommended Operating Conditions
1) V
IN
from 30% to 70% of V
CC
2) V
CCA
= 4.5 to 5.5V; V
CCB
= 2.7 to 3.6V;
Table 6: DC Specifications For V
CCA
Symbol Parameter Value Unit
V
CCA
Supply Voltage (note 1)
4.5 to 5.5 V
V
CCB
Supply Voltage (note 1)
2.7 to 5.5 V
V
I
Input Voltage 0 to V
CCA
V
V
I/OA
I/O Voltage 0 to V
CCA
V
V
I/OB
I/O Voltage 0 to V
CCB
V
T
op
Operating Temperature
-40 to 85 °C
dt/dv Input Rise and Fall Time (note 2) 0 to 10 ns/V
Symbol Parameter
Test Condition Value
Unit
V
CCA
(V)
V
CCB
(V)
T
A
= 25 °C
-40 to 85 °C -55 to 125°C
Min. Typ. Max. Min. Max. Min. Max.
V
IHA
High Level Input
Voltage
4.5 2.7 2.0 2.0 2.0
V4.5 3.6 2.0 2.0 2.0
5.5 5.5 2.0 2.0 2.0
V
ILA
Low Level Input
Voltage
4.5 2.7 0.8 0.8 0.8
V4.5 3.6 0.8 0.8 0.8
5.5 5.5 0.8 0.8 0.8
V
OHA
High Level
Output Voltage
4.5 3.0
I
O
=-100 µA
4.4 4.5 4.4 4.4
V
4.5 3.0
I
O
=-24 mA
3.86 3.76 3.76
V
OLA
Low Level Output
Voltage
4.5 3.0
I
O
=100 µA
0 0.1 0.1 0.1
V
4.5 3.0
I
O
=24 mA
0.36 0.44 0.44
I
IA
Input Leakage
Current
5.5 3.6
V
I
= V
CC
or GND
± 0.1 ± 1 ± 1 µA
I
OZA
High Impedance
Output Leakage
Current
5.5 3.6 V
IA
= V
IHA
or V
ILA
V
IB
= V
IHB
or V
ILB
V
I/OA
= V
CCA
or
GND
± 0.5 ± 5 ± 5 µA
I
CCtA
Quiescent Supply
Current
5.5 3.6 V
IA
= V
CCA
or
GND
V
IB
= V
CCB
or
GND
55050µA
I
CCtAF
Quiescent V
CCA
Supply Current
as B Port Floats
5.5 Open V
IA
= V
CCA
or
GND G
= DIR =
V
CCA
V
IB
= Open
55050µA
∆I
CCtA
Maximum
Quiescent Supply
Current / Input
(An, DIR, G
)
5.5 5.5 V
IA
= V
CCA
- 2.1V
V
IB
= V
CCB
or
GND
1.35 1.5 1.5 mA
Obsolete Product(s) - Obsolete Product(s)
P1-P3P4-P6P7-P9P10-P12P13-P14

74LVXC4245MTR

Mfr. #:
Buy 74LVXC4245MTR
Manufacturer:
STMicroelectronics
Description:
Bus Transceivers Octal Bus Tansceiver
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet