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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Advance Information
Configurable Dual Supply Octal Transceiver
MC74LVXC3245
with 3-State Outputs for 3V Systems
The 74LVXC3245 is a 24-pin dual-supply, octal configurable voltage interface transceiver especially well suited for PCMCIA and other real time configurable I/O applications. The VCCA pin accepts a 3V supply level; the A port is a dedicated 3V port. The VCCB pin accepts a 3V-to-5V supply level. The B port is configured to track the VCCB supply level. A 5V level on the VCCB pin will configure the I/O pins at a 5V level and a 3V VCCB will configure the I/O pins at a 3V level. The A port interfaces with a 3V host system and the B port to the card slots. This device will allow the VCCB voltage source pin and I/O pins on the B port to float when OE is High. This feature is necessary to buffer data to and from a PCMCIA socket that permits PCMCIA cards to be inserted and removed during normal operation. The Transmit/Receive (T/R) input determines the direction of data flow. Transmit (active-High) enables data from the A port to B port. Receive (active-Low) enables data from the B port to the A port.
LOW-VOLTAGE CMOS
LVX
* * * *
DW SUFFIX 24-LEAD PLASTIC WIDE SOIC PACKAGE CASE 751E-04
Bidirectional Interface Between 3V and 3V/5V Buses Control Inputs Compatible with TTL Level Outputs Source/Sink Up to 24mA
Guaranteed Simultaneous Switching Noise Level and Dynamic Threshold Performance * Available in SOIC and TSSOP Packages
* Flexible VCCB Operating Range * Allows B Port and VCCB to Float Simultaneously When OE Is High * Functionally Compatible with the 74 Series 245
VCCB NC 24 23 OE 22 B0 21 B1 20 B2 19 B3 18 B4 17 B5 16 B6 15 B7 14 GND 13
DT SUFFIX 24-LEAD PLASTIC TSSOP PACKAGE CASE 948H-01
PIN NAMES
Pins OE T/R A0-A7 B0-B7 Function Output Enable Input Transmit/Receive Input Side A 3-State Inputs or 3-State Outputs Side B 3-State Inputs or 3-State Outputs
1
2
3 A0
4 A1
5 A2
6 A3
7 A4
8 A5
9 A6
10 A7
11
12
VCCA T/R
GND GND
Figure 1. 24-Lead Pinout (Top View)
This document contains information on a new product. Specifications and information herein are subject to change without notice.
7/97
(c) Motorola, Inc. 1997
1
REV 1
MC74LVXC3245
OE 22 T/R 2 3 21 A1 4 20 A2 5 19 A3 6 18 A4 7 17 A5 8 16 A6 9 15 A7 10 14
A0
B0
B1
B2
B3
B4
B5
B6
B7
Figure 2. Logic Diagram
INPUTS OE L L H T/R L H X OPERATING MODE Non-Inverting B Data to A Bus A Data to B Bus Z
H = High Voltage Level; L = Low Voltage Level; Z = High Impedance State; X = High or Low Voltage Level and Transitions are Acceptable; For ICC reasons, Do Not Float Inputs
MOTOROLA
2
LVX Data -- Low-Voltage CMOS Logic BR1492 -- Rev 0
MC74LVXC3245
ABSOLUTE MAXIMUM RATINGS*
Symbol VCCA, VCCB VI VI/O DC Supply Voltage DC Input Voltage DC Input/Output Voltage OE, T/R An Bn IIK IOK IO ICC, IGND TSTG DC Input Diode Current DC Output Diode Current DC Output Source/Sink Current DC Supply Current Storage Temperature Range DC Latchup Source/Sink Current Per Output Pin Maximum Current OE, T/R Parameter Value -0.5 to +7.0 -0.5 to VCCA +0.5 -0.5 to VCCA +0.5 -0.5 to VCCB +0.5 20 50 50 50 200 -65 to +150 300 VI < GND VO < GND; VO > VCC Condition Unit V V V V mA mA mA mA C mA
* Absolute maximum continuous ratings are those values beyond which damage to the device may occur. Exposure to these conditions or conditions beyond those indicated may adversely affect device reliability. Functional operation under absolute-maximum-rated conditions is not implied.
RECOMMENDED OPERATING CONDITIONS
Symbol VCCA, VCCB VI VI/O TA t/V Parameter Supply Voltage (VCCA VCCB) Input Voltage Input/Output Voltage Operating Free-Air Temperature Minimum Input Edge Rate VIN from 30% to 70% of VCC; VCC at 3.0V, 4.5V, 5.5V VCCA VCCB OE, T/R An Bn Min 2.7 3.0 0 0 0 -40 0 Max 3.6 5.5 VCCA VCCA VCCB +85 8 Unit V V V C ns/V
DC ELECTRICAL CHARACTERISTICS
TA = 25C Symbol VIHA Parameter Minimum HIGH Level Input Voltage An OE T/R Bn VILA Maximum LOW Level Input Voltage An OE T/R Bn VOHA Minimum HIGH Level Output Voltage Condition VCCA 2.7 3.0 3.6 2.7 3.0 3.6 2.7 3.0 3.6 2.7 3.0 3.6 3.0 3.0 3.0 2.7 2.7 3.0 3.0 3.0 3.0 VCCB 3.0 3.6 5.5 3.0 3.6 5.5 3.0 3.6 5.5 3.0 3.6 5.5 3.0 3.0 3.0 3.0 4.5 3.0 3.0 3.0 4.5 2.99 2.85 2.65 2.50 2.30 2.99 2.85 2.65 4.25 Typ 2.0 2.0 2.0 2.00 2.00 3.85 0.8 0.8 0.8 0.80 0.80 1.65 2.90 2.56 2.35 2.30 2.10 2.90 2.56 2.35 3.86 TA = -40 to +85C Guaranteed Limits 2.0 2.0 2.0 2.00 2.00 3.85 0.8 0.8 0.8 0.80 0.80 1.65 2.90 2.46 2.25 2.20 2.00 2.90 2.46 2.25 3.76 Unit V
VIHB
VOUT 0.1V or VCC - 0.1V
V
V
VILB
VOUT 0.1V or VCC - 0.1V
V
IOUT = -100A IOH = -12mA IOH = -24mA IOH = -12mA IOH = -24mA IOUT = -100A IOH = -12mA IOH = -24mA IOH = -24mA
V
VOHB
V
LVX Data -- Low-Voltage CMOS Logic BR1492 -- Rev 0
3
MOTOROLA
MC74LVXC3245
DC ELECTRICAL CHARACTERISTICS
TA = 25C Symbol VOLA Parameter Maximum LOW Level Output Voltage Condition IOUT = 100A IOL = 24mA IOL = 12mA IOL = 24mA IOUT = 100A IOL = 24mA IOL = 24mA Max Input Leakage Current Max 3-State Output Leakage Max 3-State Output Leakage Maximum ICC/Input OE, T/R An VI = VCCA, GND VI = VIH, VIL OE = VCCA VO = VCCA, GND VI = VIH, VIL OE = VCCA VO = VCCB, GND VI=VCCB-2.1V VI=VCC-0.6V An=VCCA or GND Bn=Open, OE=VCCA, T/R=VCCA, VCCB=Open An=VCCA or GND Bn=VCCB or GND, OE=GND, T/R=GND An=VCCA or GND Bn=VCCB or GND, OE=GND, T/R=VCCA Notes NO TAG, NO TAG Notes NO TAG, NO TAG Quiet Output Min Dynamic VOL Notes NO TAG, NO TAG Notes NO TAG, NO TAG Min HIGH Level Dynamic Input Voltage Notes NO TAG, NO TAG Notes NO TAG, NO TAG Max LOW Level Dynamic Input Voltage Notes NO TAG, NO TAG Notes NO TAG, NO TAG VCCA 3.0 3.0 2.7 2.7 3.0 3.0 3.0 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 VCCB 3.0 3.0 3.0 4.5 3.0 3.0 4.5 3.6 5.5 3.6 5.5 3.6 5.5 5.5 3.6 1.0 Typ 0.002 0.21 0.11 0.22 0.002 0.21 0.18 TA = -40 to +85C Guaranteed Limits 0.10 0.36 0.36 0.42 0.10 0.36 0.36 0.1 0.1 0.5 0.5 0.5 0.5 1.35 0.35 0.10 0.44 0.44 0.50 0.10 0.44 0.44 1.0 1.0 5.0 5.0 5.0 5.0 1.5 0.5 Unit V
VOLB
V
IIN IOZA
A A
IOZB
A
Bn Bn All Inputs
ICC
mA mA A
ICCA1
Quiescent VCCA Supply Current as B Port Floats
3.6
Open
5
50
ICCA2
Quiescent VCCA Supply Current
A 3.6 3.6 3.6 5.5 5 5 50 50 A 3.6 3.6 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.6 5.5 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 5 8 0.8 0.8 0.8 1.5 -0.8 -0.8 -0.8 -1.2 2.0 2.0 2.0 3.5 0.8 0.8 0.8 1.5 50 80 V V V V V V V V
ICCB
Quiescent VCCB Supply Current
VOLPA VOLPB VOLVA VOLVB VIHDA VIHDB VILDA VILDB
Quiet Output Max Dynamic VOL
1. Worst case package. 2. Max number of outputs defined as (n). Data inputs are driven 0V to VCC level; one output at GND. 3. Max number of data inputs (n) switching. (n-1) inputs switching 0V to VCC level. Input under test switching: VCC level to threshold (VIHD), 0V to threshold (VILD), f = 1MHz.
MOTOROLA
4
LVX Data -- Low-Voltage CMOS Logic BR1492 -- Rev 0
MC74LVXC3245
AC ELECTRICAL CHARACTERISTICS
TA = -40 to +85C; CL = 50pF VCCA = 2.7-3.6V VCCB = 4.5-5.5V Symbol tPHL tPLH tPHL tPLH tPZL tPZH tPZL tPZH tPHZ tPLZ tPHZ tPLZ Parameter Propagation Delay A to B Propagation Delay B to A Output Enable Time OE to B Output Enable Time OE to A Output Disable Time OE to B Output Disable Time OE to A Min 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Typ (Note 4.) 4.8 3.9 3.8 4.3 4.7 4.8 5.9 5.4 4.0 3.8 4.6 3.1 Max 8.5 7.0 7.0 8.0 8.5 9.0 10.0 9.5 8.5 8.0 10.0 7.0 Min 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 VCCA = 2.7-3.6V VCCB = 3.0-3.6V Typ (Note 5.) 5.5 5.2 4.4 5.1 6.0 6.1 6.4 5.8 6.3 4.5 5.2 3.4 Max 9.0 8.5 7.5 8.0 9.5 10.0 10.5 9.5 10.0 8.5 10.0 7.0 Unit ns ns ns ns ns ns
tOSHL Output to Output Skew, Data to Output ns 1.0 1.5 1.0 1.5 tOSLH (Note NO TAG) 4. Typical values at VCCA = 3.3V, VCCB = 5.0V at 25C. 5. Typical values at VCCA = 3.3V, VCCB = 3.3V at 25C. 6. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The specification applies to any outputs switching in the same direction, either HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH); parameter guaranteed by design.
CAPACITIVE CHARACTERISTICS
Symbol CIN CI/O CPD Parameter Input Capacitance Input/Output Capacitance Power Dissipation Capacitance (Measured at 10MHz) AB BA Condition VCCA = 3.3V; VCCB = 5.0V VCCA = 3.3V; VCCB = 5.0V VCCB = 5.0V VCCA = 3.3V Typical 4.5 10 50 40 Unit pF pF pF
LVX Data -- Low-Voltage CMOS Logic BR1492 -- Rev 0
5
MOTOROLA
MC74LVXC3245
VCCA
VCCB
LVXC3245
SD(0:15)
SLOT 0
LVXC3245 ISA BUS (IEEE P996) POWER SWITCHES SLOT 0 SLOT 1
PCMCIA 2.0 JEIDA 4.1 COMPATIBLE CONTROLLER
5V VCC
3V VCC
LVXC3245
SLOT 1
SD(0:15)
LVXC3245
OPTIONAL
Figure 3. Block Diagram
Configurable I/O Application for PCMCIA Cards The 74LVXC3245 is a dual-supply device well suited for PCMCIA configurable I/O applications. The LVXC3245 consumes less than 1mW of quiescent power in all modes of operation, making it ideal for low power notebook designs. The LVXC3245 meets all PCMCIA I/O voltage requirements at 5V and 3.3V operation. By tying the VCCB pin to the card
voltage supply, the PCMCIA card will always have rail-to-rail output swings, maximizing the reliability of the interface. The VCCA pin must always be tied to a 3.3V power supply. This voltage connection provides internal references needed to account for variations in VCCB. When connected as in the figure above, the LVXC3245 meets all the voltage and current requirements of the ISA bus standard (IEEE P996).
MOTOROLA
6
LVX Data -- Low-Voltage CMOS Logic BR1492 -- Rev 0
MC74LVXC3245
VCC An, Bn 50% VCC 50% VCC 0V tPLH Bn, An 50% VCC tPHL VOH 50% VCC VOL WAVEFORM 1 - PROPAGATION DELAYS tR = tF = 2.5ns, 10% to 90%; f = 1MHz; tW = 500ns
VCC OE, T/R 50% VCC 50% VCC 0V tPZH An, Bn 50% VCC 0V tPZL 50% VCC VOL + 0.3V GND WAVEFORM 2 - OUTPUT ENABLE AND DISABLE TIMES tR = tF = 2.5ns, 10% to 90%; f = 1MHz; tW = 500ns tPLZ VCC tPHZ VCC VOH - 0.3V
An, Bn
Figure 4. AC Waveforms
VCC 2xVCC OPEN
PULSE GENERATOR RT
DUT CL
R1 RL
TEST tPLH, tPHL, tPZH, tPHZ tPZL, tPLZ
SWITCH Open 2xVCC
CL = 50pF or equivalent (Includes jig and probe capacitance) RL = R1 = 500 or equivalent RT = ZOUT of pulse generator (typically 50)
Figure 5. Test Circuit
LVX Data -- Low-Voltage CMOS Logic BR1492 -- Rev 0
7
MOTOROLA
MC74LVXC3245
OUTLINE DIMENSIONS
DT SUFFIX PLASTIC TSSOP PACKAGE CASE 948H-01 ISSUE O
24X K REF
0.10 (0.004) 0.15 (0.006) T U
S
M
TU
S
V
S
2X
L/2
24
13
L
PIN 1 IDENT. 1 12
B -U-
0.15 (0.006) T U
S
A -V-
NOTES: 1 DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2 CONTROLLING DIMENSION: MILLIMETER. 3 DIMENSION A DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH OR GATE BURRS SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 4 DIMENSION B DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSION. INTERLEAD FLASH OR PROTRUSION SHALL NOT EXCEED 0.25 (0.010) PER SIDE. 5 DIMENSION K DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN EXCESS OF THE K DIMENSION AT MAXIMUM MATERIAL CONDITION. 6 TERMINAL NUMBERS ARE SHOWN FOR REFERENCE ONLY. 7 DIMENSION A AND B ARE TO BE DETERMINED AT DATUM PLANE -W-. DIM A B C D F G H J J1 K K1 L M MILLIMETERS MIN MAX 7.70 7.90 4.30 4.50 --- 1.20 0.05 0.15 0.50 0.75 0.65 BSC 0.27 0.37 0.09 0.20 0.09 0.16 0.19 0.30 0.19 0.25 6.40 BSC 0_ 8_ INCHES MIN MAX 0.303 0.311 0.169 0.177 --- 0.047 0.002 0.006 0.020 0.030 0.026 BSC 0.011 0.015 0.004 0.008 0.004 0.006 0.007 0.012 0.007 0.010 0.252 BSC 0_ 8_
C 0.10 (0.004) -T- SEATING
PLANE
D
G
H
-W-
DETAIL E N K K1 J1
0.25 (0.010) M
SECTION N-N J
MOTOROLA
CCC EE CCC EE
N F DETAIL E
8
LVX Data -- Low-Voltage CMOS Logic BR1492 -- Rev 0
MC74LVXC3245
OUTLINE DIMENSIONS
DW SUFFIX PLASTIC SOIC PACKAGE CASE 751E-04 ISSUE E
-A -
24 13 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.13 (0.005) TOTAL IN EXCESS OF D DIMENSION AT MAXIMUM MATERIAL CONDITION. DIM A B C D F G J K M P R MILLIMETERS MIN MAX 15.25 15.54 7.60 7.40 2.65 2.35 0.49 0.35 0.90 0.41 1.27 BSC 0.32 0.23 0.29 0.13 8 0 10.05 10.55 0.25 0.75 INCHES MIN MAX 0.601 0.612 0.292 0.299 0.093 0.104 0.014 0.019 0.016 0.035 0.050 BSC 0.009 0.013 0.005 0.011 0 8 0.395 0.415 0.010 0.029
-B -
1 12
P 12 PL 0.010 (0.25)
M
B
M
J D 24 PL 0.010 (0.25)
M
TA
S
B
S
F R X 45 C -T - SEATING PLANE G 22 PL K M
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LVX Data -- Low-Voltage CMOS Logic BR1492 -- Rev 0
9
MC74LVXC3245/D MOTOROLA

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