View 74ACT244MTCX_454022.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

74AC244 * 74ACT244 Octal Buffer/Line Driver with 3-STATE Outputs
November 1988 Revised March 2005
74AC244 * 74ACT244 Octal Buffer/Line Driver with 3-STATE Outputs
General Description
The AC/ACT244 is an octal buffer and line driver designed to be employed as a memory address driver, clock driver and bus-oriented transmitter/receiver which provides improved PC board density.
Features
s ICC and IOZ reduced by 50% s 3-STATE outputs drive bus lines or buffer memory address registers s Outputs source/sink 24 mA s ACT244 has TTL-compatible inputs
Ordering Code:
Order Number 74AC244SC 74AC244SCX_NL (Note 1) 74AC244SJ 74AC244MTC 74AC244MTCX_NL (Note 1) 74AC244PC 74ACT244SC 74ACT244SCX_NL (Note 1) 74ACT244SJ 74ACT244MSA 74ACT244MTC 74ACT244MTCX_NL (Note 1) 74ACT244PC Package Number M20B M20B M20D MTC20 MTC20 N20A M20B M20B M20D MSA20 MTC20 MTC20 N20A Package Description 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide Pb-Free 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Pb-Free 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide Pb-Free 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Pb-Free 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
Device also available in Tape and Reel. Specify by appending suffix letter "X" to the ordering code. Pb-Free package per JEDEC J-STD-020B. Note 1: "_NL" indicates Pb-Free package (per JEDEC J-STD-020B). Please use order number as indicated.
FACT is a trademark of Fairchild Semiconductor Corporation.
(c) 2005 Fairchild Semiconductor Corporation
DS009943
www.fairchildsemi.com
74AC244 * 74ACT244
Logic Symbol
IEEE/IEC
Pin Descriptions
Pin Names OE1, OE2 I0-I7 O0-O7 Description 3-STATE Output Enable Inputs Inputs Outputs
Truth Tables
Inputs OE1 L L H In L H X Inputs OE2 L L H
X Z Immaterial High Impedance
Outputs (Pins 12, 14, 16, 18) L H Z Outputs In L H X (Pins 3, 5, 7, 9) L H Z
Connection Diagram
www.fairchildsemi.com
2
74AC244 * 74ACT244
Absolute Maximum Ratings(Note 2)
Supply Voltage (VCC) DC Input Diode Current (IIK) VI VI
0.5V to 7.0V 20 mA 20 mA 0.5V to VCC 0.5V 20 mA 20 mA 0.5V to VCC 0.5V r50 mA r50 mA 65qC to 150qC
140qC
Recommended Operating Conditions
Supply Voltage (VCC) AC ACT Input Voltage (VI) Output Voltage (VO) Operating Temperature (TA) Minimum Input Edge Rate ('V/'t) AC Devices VIN from 30% to 70% of VCC VCC @ 3.3V, 4.5V, 5.5V Minimum Input Edge Rate ('V/'t) ACT Devices VIN from 0.8V to 2.0V VCC @ 4.5V, 5.5V 125 mV/ns
Note 2: Absolute maximum ratings are those values beyond which damage to the device may occur. The databook specifications should be met, without exception, to ensure that the system design is reliable over its power supply, temperature, and output/input loading variables. Fairchild does not recommend operation of FACT circuits outside databook specifications.
0.5V VCC 0.5V
2.0V to 6.0V 4.5V to 5.5V 0V to VCC 0V to VCC
DC Input Voltage (VI) DC Output Diode Current (IOK) VO VO
0.5V VCC 0.5V
40qC to 85qC
DC Output Voltage (VO) DC Output Source or Sink Current (IO) DC VCC or Ground Current per Output Pin (ICC or IGND) Storage Temperature (TSTG) Junction Temperature (TJ) PDIP
125 mV/ns
DC Electrical Characteristics for AC
Symbol VIH Parameter Minimum HIGH Level Input Voltage VIL Maximum LOW Level Input Voltage VOH Minimum HIGH Level Output Voltage VCC (V) 3.0 4.5 5.5 3.0 4.5 5.5 3.0 4.5 5.5 3.0 4.5 5.5 VOL Maximum LOW Level Output Voltage 3.0 4.5 5.5 3.0 4.5 5.5 IIN (Note 5) IOZ Maximum Input Leakage Current Maximum 3-STATE Current IOLD IOHD ICC (Note 5) Minimum Dynamic Output Current (Note 4) Maximum Quiescent Supply Current 5.5 5.5 5.5 4.0 50 75 mA mA 5.5 VI (OE) VIL, VIH 5.5 0.002 0.001 0.001 TA Typ 1.5 2.25 2.75 1.5 2.25 2.75 2.99 4.49 5.49 2.1 3.15 3.85 0.9 1.35 1.65 2.9 4.4 5.4 2.56 3.86 4.86 0.1 0.1 0.1 0.36 0.36 0.36
25qC
TA
55qC to 125qC TA
Guaranteed Limits 2.1 3.15 3.85 0.9 1.35 1.65 2.9 4.4 5.4 2.4 3.7 4.7 0.1 0.1 0.1 0.50 0.50 0.50
40qC to 85qC
2.1 3.15 3.85 0.9 1.35 1.65 2.9 4.4 5.4 2.46 3.76 4.76 0.1 0.1 0.1 0.44 0.44 0.44
Units
Conditions VOUT 0.1V
V
or VCC 0.1V VOUT 0.1V
V
or VCC 0.1V
V
IOUT IOH
50 PA
12 mA 24 mA 24 mA (Note 3) 50 PA 12 mA 24 mA 24 mA (Note 3) VCC, GND
V
IOH IOH
V
IOUT IOL
V
IOL IOL VI
r0.1
r1.0
r1.0
PA
r0.25
r5.0
r2.5
PA
VI VO
VCC, VGND VCC, GND 1.65V Max 3.85V Min VCC
VOLD VOHD VIN or GND
50
80.0
75
40.0
PA
Note 3: All outputs loaded; thresholds on input associated with output under test. Note 4: Maximum test duration 2.0 ms, one output loaded at a time. Note 5: IIN and ICC @ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V VCC.
3
www.fairchildsemi.com
74AC244 * 74ACT244
DC Electrical Characteristics for ACT
Symbol VIH VIL VOH Parameter Minimum HIGH Level Input Voltage Maximum LOW Level Input Voltage Minimum HIGH Level Output Voltage VCC (V) 4.5 5.5 4.5 5.5 4.5 5.5 4.5 5.5 VOL Maximum LOW Level Output Voltage 4.5 5.5 4.5 5.5 IIN IOZ ICCT IOLD IOHD ICC Maximum Input Leakage Current Maximum 3-STATE Current Maximum ICC/Input Minimum Dynamic Output Current (Note 7) Maximum Quiescent Supply Current
Note 6: All outputs loaded; thresholds on input associated with output under test. Note 7: Maximum test duration 2.0 ms, one output loaded at a time.
TA Typ 1.5 1.5 1.5 1.5 4.49 5.49
25qC
2.0 2.0 0.8 0.8 4.4 5.4 3.86 4.86
TA
55qC to 125qC TA 40qC to 85qC
Guaranteed Limits 2.0 2.0 0.8 0.8 4.4 5.4 3.70 4.70 0.1 0.1 0.50 0.50 2.0 2.0 0.8 0.8 4.4 5.4 3.76 4.76 0.1 0.1 0.44 0.44
Units V V V
Conditions VOUT VOUT IOUT IOH 0.1V 0.1V
or VCC 0.1V or VCC 0.1V
50 PA
12 24 mA 24 mA (Note 6) 50 PA 12 mA 24 mA 24 mA (Note 6) VCC, GND VIL, VIH VCC, GND VCC 2.1V 1.65V Max 3.85V Min VCC
V
IOH IOH IOUT IOL
0.001 0.001
0.1 0.1 0.36 0.36
V
V
IOL IOL VI VI VO VI
5.5 5.5 5.5 5.5 5.5 5.5 0.6
r0.1 r0.25
r1.0 r5.0
1.6 50
r1.0 r2.5
1.5 75
PA PA
mA mA mA
VOLD VOHD VIN or GND
50
4.0 80.0
75
40.0
PA
www.fairchildsemi.com
4
74AC244 * 74ACT244
AC Electrical Characteristics for AC
VCC Symbol Parameter (V) (Note 8) tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay Data to Output Propagation Delay Data to Output Output Enable Time Output Enable Time Output Disable Time Output Disable Time 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0
Note 8: Voltage Range 3.3 is 3.3V r 0.3V Voltage Range 5.0 is 5.0V r 0.5V
TA CL Min 2.0 1.5 2.0 1.5 2.0 1.5 2.5 1.5 3.0 2.5 2.5 2.0
25qC
50 pF Typ 6.5 5.0 6.5 5.0 6.0 5.0 7.5 5.5 7.0 6.5 7.5 6.5 Max 9.0 7.0 9.0 7.0 10.5 7.0 10.0 8.0 10.0 9.0 10.5 9.0
TA
55qC to 125qC TA
CL 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 50 pF Max 12.5 9.5 12.0 9.0 11.5 9.0 13.0 10.5 12.5 10.5 13.0 11.0
40qC to 85qC
CL Min 1.5 1.0 2.0 1.0 1.5 1.5 2.0 1.5 1.5 1.0 2.5 2.0 50 pF Max 10.0 7.5 10.0 7.5 11.0 8.0 11.0 8.5 10.5 9.5 11.5 9.5 ns ns ns ns ns ns Units
AC Electrical Characteristics for ACT
VCC Symbol Parameter (V) (Note 9) tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay Data to Output Propagation Delay Data to Output Output Enable Time Output Enable Time Output Disable Time Output Disable Time 5.0 5.0 5.0 5.0 1.5 2.0 2.0 2.5 6.0 7.0 7.0 7.5 8.5 9.5 9.5 10.0 1.0 1.0 1.0 1.0 9.5 11.0 11.0 11.5 1.0 1.5 1.5 2.0 9.5 10.5 10.5 10.5 ns ns ns ns 5.0 2.0 7.0 9.0 1.0 10.0 1.5 10.0 ns 5.0 Min 2.0 TA CL
25qC
50 pF Typ 6.5 Max 9.0
TA
55qC to 125qC TA
CL Min 1.0 50 pF Max 10.0
40qC to 85qC
CL Min 1.5 50 pF Max 10.0 ns Units
Note 9: Voltage Range 5.0 is 5.0V r 0.5V
Capacitance
Symbol CIN CPD Parameter Input Capacitance Power Dissipation Capacitance Typ 4.5 45.0 Units pF pF VCC VCC OPEN 5.0V Conditions
5
www.fairchildsemi.com
74AC244 * 74ACT244
Physical Dimensions inches (millimeters) unless otherwise noted
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide Package Number M20B
www.fairchildsemi.com
6
74AC244 * 74ACT244
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M20D
7
www.fairchildsemi.com
74AC244 * 74ACT244
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide Package Number MSA20
www.fairchildsemi.com
8
74AC244 * 74ACT244
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Package Number MTC20
9
www.fairchildsemi.com
74AC244 * 74ACT244 Octal Buffer/Line Driver with 3-STATE Outputs
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide Package Number N20A
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. www.fairchildsemi.com 10 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com
This datasheet has been download from: www..com Datasheets for electronics components.

▲Up To Search▲

Price & Availability of 74ACT244MTCX

	To Download 74ACT244MTCX Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .