74lvx3245 STMicroelectronics, 74lvx3245 Datasheet

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74lvx3245

Manufacturer Part Number
74lvx3245
Description
Octal Dual Supply Bus Transceiver
Manufacturer
STMicroelectronics
Datasheet

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DESCRIPTION
The 74LVX3245 is a dual supply low voltage
CMOS OCTAL BUS TRANSCEIVER fabricated
with sub-micron silicon gate and double-layer
metal wiring C
as an interface between a 5V bus and a 3.3V bus
in a mixed 5V/3.3V supply systems, it achieves
high speed operation while maintaining the CMOS
low power dissipation.
Figure 1: Pin Connection And IEC Logic Symbols
August 2004
HIGH SPEED:
t
V
LOW POWER DISSIPATION:
I
LOW NOISE: V
SYMMETRICAL OUTPUT IMPEDANCE:
|I
BALANCED PROPAGATION DELAYS:
t
OPERATING VOLTAGE RANGE:
V
V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 3245
IMPROVED LATCH-UP IMMUNITY
PD
CCA
PLH
OH
CCA
CCA
CCB
= 8ns (MAX.) at T
| = I
= I
(OPR) = 2.7V to 3.6V (1.2V Data Retention)
(OPR) = 4.5V to 5.5V (1.2V Data Retention)
= 3.3V, V
t
PHL
CCB
OL
= 24mA (MIN)
2
MOS technology. Designed for use
= 5 A(MAX.) at T
CCB
OLP
= 5.0V
=0.3V (TYP.) at V
A
=25°C
OCTAL DUAL SUPPLY BUS TRANSCEIVER
A
=25°C
CC
=3.3V
Table 1: Order Codes
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.
PACKAGE
TSSOP
SOP
SOP
74LVX3245
Rev. 4
74LVX3245MTR
74LVX3245TTR
TSSOP
T & R
1/13

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74lvx3245 Summary of contents

Page 1

... Data Retention) CCB PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 3245 IMPROVED LATCH-UP IMMUNITY DESCRIPTION The 74LVX3245 is a dual supply low voltage CMOS OCTAL BUS TRANSCEIVER fabricated with sub-micron silicon gate and double-layer 2 metal wiring C MOS technology. Designed for use as an interface between a 5V bus and a 3.3V bus in a mixed 5V/3 ...

Page 2

... Figure 2: Input And Output Equivalent Circuit Table 3: Truth Table INPUTS Don’t Care Z : High Impedance Table 4: Absolute Maximum Ratings Symbol V Supply Voltage CCA V Supply Voltage CCB V DC Input Voltage I/O Voltage I/ I/O Voltage I/ Input Diode Current Output Diode Current ...

Page 3

... IB CCB GND Value 2.7 to 3.6 4 CCA CCA CCB -55 to 125 Value = 25 °C - °C -55 to 125°C Typ. Max. Min. Max. Min. 2.0 2.0 2.0 2.0 0.8 0.8 0.8 0.8 2.99 2.9 2.9 2.65 2.25 2.25 2.5 2.2 2.2 2.3 2.0 2.0 0.002 0.1 0.1 0.21 0.36 0.44 0.11 0.36 0.44 0.22 0.42 0.5 0 0.35 0.5 74LVX3245 Unit °C ns/V Unit Max. V 0.8 V 0.8 V 0.1 0.44 V 0.44 0 0.5 mA 3/13 ...

Page 4

... Table 7: DC Specifications For V Symbol Parameter V CCA (V) V High Level Input 3.3 IHB Voltage 3.3 V Low Level Input 3.3 ILB Voltage 3.3 V High Level 3.0 OHB Output Voltage 3.3 V Low Level Output 3.0 OLB Voltage 3.3 I Input Leakage IB 3.6 Current I High Impedance 3.6 OZB Output Leakage Current I Quiescent Supply 3.6 CCtB ...

Page 5

... HIGH or LOW 2) Parameter guaranteed by design 3) Typical values 3.3V, V CCA CCB (*) Voltage range is 3.0V 0.3V = 50pF, Input t L Test Condition T CCA (V) Min. 2.7 (*) 1.0 2.7 (*) 1.0 2.7 (*) 1.0 2.7 (*) 1.0 2.7 (*) 1.0 2.7 (*) 1.0 2.7 (*) 1.0 2.7 (*) 1.0 2.7 (*) 1.0 2.7 (*) 1.0 2.7 (*) 1.0 2.7 (*) 1.0 2.7 (*) = 5. 3ns (3) Value = 25°C -40 to 85°C -55 to 125°C A Typ. Max. Min. Max. Min. 1.0 9.0 1.0 5.4 8.0 1.0 8.5 1.0 1.0 8.5 1.0 5.6 7.5 1.0 8.0 1.0 1.0 9.0 1.0 4.8 8.0 1.0 8.5 1.0 1.0 9.5 1.0 6.3 8.5 1.0 9.0 1.0 1.0 8.5 1.0 5.3 7.5 1.0 8.5 1.0 1.0 8.0 1.0 4.2 7.0 1.0 7.5 1.0 1.0 8.5 1.0 5.1 7.5 1.0 8.0 1.0 1.0 8.5 1.0 5.7 7.5 1.0 8.0 1.0 1.0 9.5 1.0 6.3 8.5 1.0 9.0 1.0 1.0 10.0 1.0 6.8 9.0 1.0 9.5 1.0 1.0 9.0 1.0 5.3 8.0 1.0 8.5 1.0 1.0 7.5 1.0 3.7 6.5 1.0 7.0 1.0 0.5 1.0 1.5 0.5 1.0 1.5 74LVX3245 Unit Max. 10.0 9.5 ns 9.5 9.5 10.0 9.5 ns 10.5 10.0 9.5 9.5 ns 9.0 8.5 9.5 8.5 ns 9.0 8.5 10.0 9.5 ns 10.5 10.0 9.5 9.0 ns 8.0 8.0 1.5 ns 1.5 5/13 ...

Page 6

... Table 10: Capacitive Characteristics Symbol Parameter V CCA (V) C Input open open IN Capacitance C Input/Output 3.3 I/O Capacitance C Dynamic Low 3.3 PD Level Quiet Output (note Dynamic Low 3.3 PD Level Quiet Output (note defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without PD load ...

Page 7

... Figure 4: Waveform - Propagation Delays (f=1MHz; 50% duty cycle) Figure 5: Waveform - Output Enable And Disable Time (f=1MHz; 50% duty cycle) 74LVX3245 7/13 ...

Page 8

... DIM. MIN. A 2.35 A1 0.1 B 0.33 C 0.23 D 15. 10.00 h 0.25 L 0.4 k 0° ddd 8/13 SO-24 MECHANICAL DATA mm. TYP MAX. 2.65 0.30 0.51 0.32 15.60 7.6 1.27 10.65 0.75 1.27 8° 0.100 inch MIN. TYP. 0.093 0.004 0.013 0.009 0.598 0.291 0.050 0.394 0.010 0.016 0° 0070769C MAX. 0.104 0.012 0.020 0.013 0.614 0.299 0.419 0.030 0.050 8° ...

Page 9

... H 6.25 K 0° PIN 1 IDENTIFICATION 1 mm. TYP MAX. 1.1 0.15 0.9 0.30 0.20 7.9 4.5 0.65 BSC 6.5 8° 0. 74LVX3245 inch MIN. TYP. 0.002 0.035 0.0075 0.0035 0.303 0.169 0.0256 BSC 0.246 0° 0.020 7047476B MAX. 0.043 0.006 0.0118 0.0079 0.311 0.177 0.256 8° 0.028 ...

Page 10

... DIM. MIN 12 10.8 Bo 15.7 Ko 2.9 Po 3.9 P 11.9 10/13 Tape & Reel SO-24 MECHANICAL DATA mm. TYP MAX. 330 13.2 30.4 11.0 15.9 3.1 4.1 12.1 inch MIN. TYP. 12.992 0.504 0.795 2.362 0.425 0.618 0.114 0.153 0.468 MAX. 0.519 1.197 0.433 0.626 0.122 0.161 0.476 ...

Page 11

... Tape & Reel TSSOP24 MECHANICAL DATA DIM. MIN 12 6.8 Bo 8.2 Ko 1.7 Po 3.9 P 11.9 mm. TYP MAX. 330 13.2 0.504 0.795 2.362 22.4 7 0.268 8.4 0.323 1.9 0.067 4.1 0.153 12.1 0.468 74LVX3245 inch MIN. TYP. MAX. 12.992 0.519 0.882 0.276 0.331 0.075 0.161 0.476 11/13 ...

Page 12

... Table 11: Revision History Date Revision 27-Aug-2004 4 12/13 Description of Changes Ordering Codes Revision - pag. 1. ...

Page 13

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