Motorola MC145572FN, MC145572PB, MC74LCX240DW, MC74LCX240M, MC74LCX240DT Datasheet
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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Low-Voltage |
CMOS |
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MC74LCX240 |
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Octal |
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Buffer |
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With 5V-Tolerant Inputs |
and Outputs |
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(3-State, |
Inverting) |
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The MC74LCX240 is a high performance, inverting octal buffer |
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operating from a 2.7 to 3.6V supply. High impedance TTL compatible |
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inputs significantly reduce current loading to input drivers while TTL |
LOW±VOLTAGE CMOS |
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compatible outputs offer improved switching noise performance. A VI |
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specification of 5.5V allows MC74LCX240 inputs to be safely driven from |
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OCTAL BUFFER |
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5V devices. The MC74LCX240 is suitable for memory address driving |
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and all TTL level bus oriented transceiver applications. |
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Current drive capability is 24mA at the outputs. The Output Enable |
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(OE) input, when HIGH, disables the outputs by placing them in a HIGH Z |
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condition. |
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DW SUFFIX |
• Designed for 2.7 to 3.6V VCC Operation |
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20 |
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PLASTIC SOIC |
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CASE 751D±04 |
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• 5V Tolerant Ð Interface Capability With 5V TTL Logic |
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1 |
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• Supports Live Insertion and Withdrawal |
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• IOFF Specification Guarantees High Impedance When VCC = 0V |
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M SUFFIX |
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• LVTTL Compatible |
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20 |
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PLASTIC SOIC EIAJ |
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• LVCMOS Compatible |
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1 |
CASE 967±01 |
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• 24mA Balanced Output Sink and Source Capability |
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• Near Zero Static Supply Current in All Three Logic States (10μA) |
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Substantially Reduces System Power Requirements |
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SD SUFFIX |
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• Latchup Performance Exceeds 500mA |
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20 |
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PLASTIC SSOP |
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• ESD Performance: Human Body Model >2000V; Machine Model >200V |
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CASE 940C±03 |
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20 |
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DT SUFFIX |
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PLASTIC TSSOP |
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Pinout: 20±Lead (Top View) |
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1 |
CASE 948E±02 |
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VCC |
2OE |
1O0 |
2D0 |
1O1 |
2D1 |
1O2 |
2D2 |
1O3 |
2D3 |
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20 |
19 |
18 |
17 |
16 |
15 |
14 |
13 |
12 |
11 |
PIN NAMES |
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Pins |
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Function |
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nOE |
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Output Enable Inputs |
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1Dn, 2Dn |
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Data Inputs |
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1On, 2On |
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3±State Outputs |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
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1OE |
1D0 |
2O0 |
1D1 |
2O1 |
1D2 |
2O2 |
1D3 |
2O3 |
GND |
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9/95
Motorola, Inc. 1996 1 REV 3
MC74LCX240
LOGIC DIAGRAM
1
1OE |
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2 |
18 |
1D0 |
1O0 |
4 |
16 |
1D1 |
1O1 |
6 |
14 |
1D2 |
1O2 |
8 |
12 |
1D3 |
1O3 |
19
2OE |
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17 |
3 |
2D0 |
2O0 |
15 |
5 |
2D1 |
2O1 |
13 |
7 |
2D2 |
2O2 |
11 |
9 |
2D3 |
2O3 |
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INPUTS |
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OUTPUTS |
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1OE |
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1Dn |
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2OE |
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2Dn |
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1On, 2On |
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L |
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L |
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H |
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L |
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H |
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L |
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H |
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X |
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Z |
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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 |
LCX DATA |
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BR1339 Ð REV 3 |
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MC74LCX240 |
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ABSOLUTE MAXIMUM RATINGS* |
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Symbol |
Parameter |
Value |
Condition |
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Unit |
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VCC |
DC Supply Voltage |
±0.5 to +7.0 |
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V |
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VI |
DC Input Voltage |
±0.5 ≤ VI ≤ +7.0 |
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V |
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VO |
DC Output Voltage |
±0.5 ≤ VO ≤ +7.0 |
Output in 3±State |
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V |
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±0.5 ≤ VO ≤ VCC + 0.5 |
Note 1. |
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V |
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IIK |
DC Input Diode Current |
±50 |
VI < GND |
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mA |
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IOK |
DC Output Diode Current |
±50 |
VO < GND |
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mA |
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+50 |
VO > VCC |
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mA |
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IO |
DC Output Source/Sink Current |
±50 |
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mA |
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ICC |
DC Supply Current Per Supply Pin |
±100 |
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mA |
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IGND |
DC Ground Current Per Ground Pin |
±100 |
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mA |
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TSTG |
Storage Temperature Range |
±65 to +150 |
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°C |
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*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.
RECOMMENDED OPERATING CONDITIONS
Symbol |
Parameter |
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Typ |
Max |
Unit |
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VCC |
Supply Voltage |
Operating |
2.0 |
3.3 |
3.6 |
V |
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Data Retention Only |
1.5 |
3.3 |
3.6 |
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VI |
Input Voltage |
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0 |
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5.5 |
V |
VO |
Output Voltage |
(HIGH or LOW State) |
0 |
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VCC |
V |
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(3±State) |
0 |
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5.5 |
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IOH |
HIGH Level Output Current, VCC = 3.0V ± 3.6V |
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±24 |
mA |
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IOL |
LOW Level Output Current, VCC = 3.0V ± 3.6V |
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24 |
mA |
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IOH |
HIGH Level Output Current, VCC = 2.7V ± 3.0V |
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±12 |
mA |
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IOL |
LOW Level Output Current, VCC = 2.7V ± 3.0V |
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12 |
mA |
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TA |
Operating Free±Air Temperature |
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±40 |
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+85 |
°C |
t/ V |
Input Transition Rise or Fall Rate, VIN from 0.8V to 2.0V, |
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10 |
ns/V |
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VCC = 3.0V |
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DC ELECTRICAL CHARACTERISTICS
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TA = ±40°C to +85°C |
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Symbol |
Characteristic |
Condition |
Min |
Max |
Unit |
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VIH |
HIGH Level Input Voltage (Note 2.) |
2.7V ≤ VCC ≤ 3.6V |
2.0 |
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VIL |
LOW Level Input Voltage (Note 2.) |
2.7V ≤ VCC ≤ 3.6V |
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0.8 |
V |
VOH |
HIGH Level Output Voltage |
2.7V ≤ VCC ≤ 3.6V; IOH = ±100μA |
VCC ± 0.2 |
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V |
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VCC = 2.7V; IOH = ±12mA |
2.2 |
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VCC = 3.0V; IOH = ±18mA |
2.4 |
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VCC = 3.0V; IOH = ±24mA |
2.2 |
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VOL |
LOW Level Output Voltage |
2.7V ≤ VCC ≤ 3.6V; IOL = 100μA |
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0.2 |
V |
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VCC = 2.7V; IOL= 12mA |
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0.4 |
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VCC = 3.0V; IOL = 16mA |
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0.4 |
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VCC = 3.0V; IOL = 24mA |
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0.55 |
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2. These values of VI are used to test DC electrical characteristics only.
LCX DATA |
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MOTOROLA |
BR1339 Ð REV 3 |
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