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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Advance Information
Low-Voltage CMOS 16-Bit Latching Transceiver
With 5V-Tolerant Inputs and Outputs (3-State, Non-Inverting)
The MC74LCX16543 is a high performance, non-inverting 16-bit latching transceiver operating from a 2.7 to 3.6V supply. The device is byte controlled. Each byte has separate control inputs which can be tied together for full 16-bit operation. High impedance TTL compatible inputs significantly reduce current loading to input drivers while TTL compatible outputs offer improved switching noise performance. A VI specification of 5.5V allows MC74LCX16543 inputs to be safely driven from 5V devices. The MC74LCX16543 is suitable for memory address driving and all TTL level bus oriented transceiver applications. For data flow from A to B with the EAB LOW, the A-to-B Output Enable (OEAB) must be LOW in order to enable data to the B bus, as indicated in the Function Table. With EAB LOW, a LOW signal on the A-to-B Latch Enable (LEAB) input makes the A-to-B latches transparent; a subsequent LOW-to-HIGH transition of the LEAB signal will latch the A latches, and the outputs no longer change with the A inputs. With EAB and OEAB both LOW, the 3-State B output buffers are active and reflect the data present at the output of the A latches. Control of data flow from B to A is symetric to that above, but uses the EBA, LEBA, and OEBA inputs.
MC74LCX16543
LOW-VOLTAGE CMOS 16-BIT LATCHING TRANSCEIVER
DT SUFFIX PLASTIC TSSOP PACKAGE CASE 1202-01
* * * * * * * * *
Designed for 2.7 to 3.6V VCC Operation 5.2ns Maximum tpd 5V Tolerant -- Interface Capability With 5V TTL Logic Supports Live Insertion and Withdrawal IOFF Specification Guarantees High Impedance When VCC = 0V LVTTL Compatible LVCMOS Compatible 24mA Balanced Output Sink and Source Capability Near Zero Static Supply Current in All Three Logic States (20A) Substantially Reduces System Power Requirements PIN NAMES
Pins OExxn Exxn LExxn A0-A15 B0-B15 Function Output Enable Inputs Enable Inputs Latch Enable Inputs 3-State Inputs/Outputs 3-State Inputs/Outputs
* Latchup Performance Exceeds 500mA * ESD Performance: Human Body Model >2000V; Machine Model >200V
This document contains information on a new product. Specifications and information herein are subject to change without notice. 11/96
(c) Motorola, Inc. 1996
1
REV 0.2
MC74LCX16543
LOGIC DIAGRAM
Pinout: 56-Lead TSSOP (Top View)
DETAIL A
52
D Q LE
5
B0 D Q LE
OEAB1 1 LEAB1 2 EAB1 3 GND 4 A0 5 A1 6
56 OEBA1 55 LEBA1 54 EBA1 53 GND 52 B0 51 B1 50 VCC 49 B2 48 B3 47 B4 46 GND 45 B5 44 B6 43 B7 42 B8 41 B9 40 B10 39 GND 38 B11 37 B12 36 B13 35 VCC 34 B14 33 B15 32 GND 31 EBA2 30 LEBA2 29 OEBA2
A0
DETAIL A x 7
VCC 7 A2 8 A3 9
OEBA1 EBA1 LEBA1
56 54 55
1 3 2
A4 10 OEAB1 EAB1 LEAB1 GND 11 A5 12 A6 13 A7 14 A8 15
D Q LE
15
DETAIL B
42
A9 16 B8 A10 17 GND 18
D Q LE
A8
A11 19 A12 20 A13 21 VCC 22
DETAIL Bx 7
A14 23 A15 24 GND 25 EAB2 26
OEBA2 EBA2 LEBA2
29 31 30
28 26 27
OEAB2 EAB2 LEAB2
LEAB2 27 OEAB2 28
MOTOROLA
2
LCX DATA BR1339 -- REV 3
MC74LCX16543
FUNCTION TABLE
Inputs OEABn H OEBAn H X L X L X L H L H H X* L H L X* L H H L X* H X X X* L X X L H L H X X X X X L H EABn EBAn LEABn LEBAn An Input X X l h Input l h X L H l h Output Z Z Z L H L H Data Ports Bn Input X X l h Output Z Z Z L H L H Input l h X L H l h Load and A Outputs Disabled Hold; A Outputs DIsabled Transparent B to A Latch and Display A Outputs Load and B Outputs Disabled Hold; B Outputs Disabled Transparent A to B Latch and Display B Outputs Disable Outputs Transparent Data; Outputs Disabled Latch and Outputs Disabled Operating Mode
H = High Voltage Level; h = High Voltage Level One Setup Time Prior to the Latch Enable or Enable Low-to-High Transition; L = Low Voltage Level; l = Low Voltage Level One Setup Time Prior to the Latch Enable or Enable Low-to-High Transition; X = Don't Care; * = The latches are not internally gated with the Output Enables. Therefore, data at the A or B ports may enter the latches at any time, provided that the LExx and Exx pins are set accordingly. For ICC reasons, Do Not Float Inputs.
ABSOLUTE MAXIMUM RATINGS*
Symbol VCC VI VO Parameter DC Supply Voltage DC Input Voltage DC Output Voltage Value -0.5 to +7.0 -0.5 VI +7.0 -0.5 VO +7.0 -0.5 VO VCC + 0.5 IIK IOK DC Input Diode Current DC Output Diode Current -50 -50 +50 IO ICC IGND TSTG DC Output Source/Sink Current DC Supply Current Per Supply Pin DC Ground Current Per Ground Pin Storage Temperature Range 50 100 100 -65 to +150 Output in 3-State Note 1. VI < GND VO < GND VO > VCC Condition Unit V V V V mA mA mA mA mA mA C
* 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. 1. Output in HIGH or LOW State. IO absolute maximum rating must be observed.
LCX DATA BR1339 -- REV 3
3
MOTOROLA
MC74LCX16543
RECOMMENDED OPERATING CONDITIONS
Symbol VCC VI VO IOH IOL IOH IOL TA t/V Supply Voltage Input Voltage Output Voltage (HIGH or LOW State) (3-State) Parameter Operating Data Retention Only Min 2.0 1.5 0 0 0 Typ 3.3 3.3 Max 3.6 3.6 5.5 VCC 5.5 -24 24 -12 12 -40 0 +85 10 Unit V V V mA mA mA mA C ns/V
HIGH Level Output Current, VCC = 3.0V - 3.6V LOW Level Output Current, VCC = 3.0V - 3.6V HIGH Level Output Current, VCC = 2.7V - 3.0V LOW Level Output Current, VCC = 2.7V - 3.0V Operating Free-Air Temperature Input Transition Rise or Fall Rate, VIN from 0.8V to 2.0V, VCC = 3.0V
DC ELECTRICAL CHARACTERISTICS
TA = -40C to +85C Symbol VIH VIL VOH Characteristic HIGH Level Input Voltage (Note 2.) LOW Level Input Voltage (Note 2.) HIGH Level Output Voltage Condition 2.7V VCC 3.6V 2.7V VCC 3.6V 2.7V VCC 3.6V; IOH = -100A VCC = 2.7V; IOH = -12mA VCC = 3.0V; IOH = -18mA VCC = 3.0V; IOH = -24mA VOL LOW Level Output Voltage 2.7V VCC 3.6V; IOL = 100A VCC = 2.7V; IOL= 12mA VCC = 3.0V; IOL = 16mA VCC = 3.0V; IOL = 24mA II IOZ IOFF ICC Input Leakage Current 3-State Output Current Power-Off Leakage Current Quiescent Supply Current 2.7V VCC 3.6V; 0V VI 5.5V 2.7 VCC 3.6V; 0V VO 5.5V; VI = VIH or V IL VCC = 0V; VI or VO = 5.5V 2.7 VCC 3.6V; VI = GND or VCC 2.7 VCC 3.6V; 3.6 VI or VO 5.5V ICC Increase in ICC per Input 2.7 VCC 3.6V; VIH = VCC - 0.6V 2. These values of VI are used to test DC electrical characteristics only. VCC - 0.2 2.2 2.4 2.2 0.2 0.4 0.4 0.55 5.0 5.0 10 20 20 500 A A A A A A V Min 2.0 0.8 Max Unit V V V
MOTOROLA
4
LCX DATA BR1339 -- REV 3
MC74LCX16543
AC CHARACTERISTICS (Note 3.; tR = tF = 2.5ns; CL = 50pF; RL = 500)
Limits TA = -40C to +85C VCC = 3.0V to 3.6V Symbol tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ tPZH tPZL tPHZ tPLZ ts th ts th tw tOSHL tOSLH Parameter Propagation Delay An to Bn or Bn to An Propagation Delay LEBAn to An or LEABn to Bn Output Enable Time OEBAn to An or OEABn to Bn Output Disable Time OEBAn to An or OEABn to Bn Output Enable Time EBAn to An or EABn to Bn Output Disable Time EBAn to An or EABn to Bn Setup Time, HIGH to LOW Data to LExxn Hold Time, HIGH to LOW Data to LExxn Setup Time, HIGH to LOW Data to Exxn Hold Time, HIGH to LOW Data to Exxn Latch Enable or Enable Pulse Width, LOW Output-to-Output Skew (Note 4.) Waveform 1 4 2 2 2 2 4 4 4 4 4 Min 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 1.5 2.5 1.5 3.0 1.0 1.0 Max 5.2 5.2 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 VCC = 2.7V Min 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 1.5 2.5 1.5 3.0 Max 6.0 6.0 7.5 7.5 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 Unit ns ns ns ns ns ns ns ns ns ns ns ns
3. These AC parameters are preliminary and may be modified prior to release. The maximum AC limits are design targets. Actual performance will be specified upon completion of characterization. 4. 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.
DYNAMIC SWITCHING CHARACTERISTICS
TA = +25C Symbol VOLP Characteristic Dynamic LOW Peak Voltage (Note 5.) Condition VCC = 3.3V, CL = 50pF, VIH = 3.3V, VIL = 0V Min Typ 0.8 Max Unit V
VOLV Dynamic LOW Valley Voltage (Note 5.) VCC = 3.3V, CL = 50pF, VIH = 3.3V, VIL = 0V 0.8 V 5. Number of outputs defined as "n". Measured with "n-1" outputs switching from HIGH-to-LOW or LOW-to-HIGH. The remaining output is measured in the LOW state.
CAPACITIVE CHARACTERISTICS
Symbol CIN CI/O CPD Parameter Input Capacitance Input/Output Capacitance Power Dissipation Capacitance Condition VCC = 3.3V, VI = 0V or VCC VCC = 3.3V, VI = 0V or VCC 10MHz, VCC = 3.3V, VI = 0V or VCC Typical 7 8 20 Unit pF pF pF
LCX DATA BR1339 -- REV 3
5
MOTOROLA
MC74LCX16543
2.7V An or Bn 1.5V 0V tPLH, tPHL VOH Bn or An 1.5V VOL WAVEFORM 1 - A/B to B/A PROPAGATION DELAYS tR = tF = 2.5ns, 10% to 90%; f = 1MHz; tW = 500ns
2.7V OExxn or Exxn 1.5V 1.5V 0V tPZH An or Bn 1.5V 0V tPZL An or Bn 1.5V VOL + 0.3V tPLZ 3.0V tPHZ VOH - 0.3V
WAVEFORM 2 - OExx/Exx to A or B OUTPUT ENABLE AND DISABLE TIMES tR = tF = 2.5ns, 10% to 90%; f = 1MHz; tW = 500ns
Figure 1. AC Waveforms
MOTOROLA
6
LCX DATA BR1339 -- REV 3
MC74LCX16543
2.7V An or Bn tw 1.5V 1.5V Exxn or LExxn 1.5V tw tPLH, tPHL POSITIVE PULSE 1.5V tw 1.5V An or Bn 1.5V VOL WAVEFORM 3 - INPUT PULSE DEFINITION tR = tF = 2.5ns, 10% to 90% of 0V to 2.7V WAVEFORM 4 - Enable to A or B PROPAGATION DELAYS, Enable MINIMUM PULSE WIDTH, A or B to Enable SETUP AND HOLD TIMES tR = tF = 2.5ns, 10% to 90%; f = 1MHz; tW = 500ns except when noted VOH 1.5V 0V ts th 2.7V 1.5V 0V NEGATIVE PULSE
Figure 2. AC Waveforms (continued)
VCC 6V OPEN GND
PULSE GENERATOR RT
DUT CL
R1 RL
TEST tPLH, tPHL tPZL, tPLZ Open Collector/Drain tPLH and tPHL tPZH, tPHZ
SWITCH Open 6V 6V GND
CL = 50pF or equivalent (Includes jig and probe capacitance) RL = R1 = 500 or equivalent RT = ZOUT of pulse generator (typically 50)
Figure 3. Test Circuit
LCX DATA BR1339 -- REV 3
7
MOTOROLA
MC74LCX16543
OUTLINE DIMENSIONS
DT SUFFIX PLASTIC TSSOP PACKAGE CASE 1202-01 ISSUE A
56X
K REF 0.12 (0.005)
M
TU
S
V
S
K K1 J J1
56
29
0.254 (0.010)
L
B -U-
1 28
SECTION N-N
N
NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH OR GATE BURRS SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 4. 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. 5. TERMINAL NUMBERS ARE SHOWN FOR REFERENCE ONLY. 6. DIMENSIONS 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 13.90 14.10 6.00 6.20 --- 1.10 0.05 0.15 0.50 0.75 0.50 BSC 0.12 --- 0.09 0.20 0.09 0.16 0.17 0.27 0.17 0.23 7.95 8.25 0_ 8_ INCHES MIN MAX 0.547 0.555 0.236 0.244 --- 0.043 0.002 0.006 0.020 0.030 0.0197 BSC 0.005 --- 0.004 0.008 0.004 0.006 0.007 0.011 0.007 0.009 0.313 0.325 0_ 8_
PIN 1 IDENT.
A -V- N F DETAIL E M 0.25 (0.010)
D 0.076 (0.003) -T- SEATING
PLANE
C DETAIL E G H
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MOTOROLA 8
EEE CCC EEE CCC
M
TU
S
-W-
MC74LCX16543/D LCX DATA BR1339 -- REV 3

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