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74ACQ244, 74ACTQ244 Quiet Seriesв„ў Octal Buffer/Line Driver with 3-STATE Outputs
March 2007
74ACQ244, 74ACTQ244 Quiet Seriesв„ў Octal Buffer/Line Driver with 3-STATE Outputs
Features
в– ICC and IOZ reduced by 50% в– Guaranteed simultaneous switching noise level and
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General
The ACQ/ACTQ244 is an octal buffer and line driver designed to be employed as a memory address driver, clock driver and bus oriented transmitter or receiver which provides improved PC board density. The ACQ/ ACTQ utilizes Fairchild Quiet Seriesв„ў technology to guarantee quiet output switching and improved dynamic threshold performance. FACT Quiet Seriesв„ў features GTOв„ў output control and undershoot corrector in addition to a split ground bus for superior performance.
dynamic threshold performance
в– Guaranteed pin-to-pin skew AC performance в– Improved latch-up immunity в– 3-STATE outputs drive bus lines or buffer memory
address registers в– Outputs source/sink 24mA в– Faster prop delays than the standard AC/ACT244
Ordering Information
Order Number
74ACQ244SC 74ACQ244SJ 74ACTQ244SC 74ACTQ244SJ 74ACTQ244QSC 74ACTQ244MSA
Package Number
M20B M20D M20B M20D MQA20 MSA20
Package
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide Body 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide Body 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 20-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150” Wide 20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering number.
Connection Diagram
Pin
Pin Names
OE1, OE2 I0–I 7 O0–O 7 Inputs Outputs
3-STATE Output Enable Inputs
FACTв„ў, Quiet Seriesв„ў, FACT Quiet Seriesв„ў, and GTOв„ў are trademarks of Fairchild Semiconductor Corporation. В©1989 Fairchild Semiconductor Corporation 74ACQ244, 74ACTQ244 Rev. 1.3 www.fairchildsemi.com
74ACQ244, 74ACTQ244 Quiet Seriesв„ў Octal Buffer/Line Driver with 3-STATE Outputs
Logic Symbol
IEE/IEC
Truth Tables
Inputs OE1
L L H
Outputs In
L H X
Pins 12, 14, 16, 18
L H Z
Inputs OE2
L L H
Outputs In
L H X
Pins 3, 5, 7, 9
L H Z
H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance
В©1989 Fairchild Semiconductor Corporation 74ACQ244, 74ACTQ244 Rev. 1.3
www.fairchildsemi.com 2
74ACQ244, 74ACTQ244 Quiet Seriesв„ў Octal Buffer/Line Driver with 3-STATE Outputs
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only.
Symbol
VCC IIK Supply Voltage DC Input Diode Current VI = –0.5V VI = VCC + 0.5V VI IOK DC Input Voltage DC Output Diode Current VO = –0.5V VO = VCC + 0.5V VO IO TSTG TJ DC Output Voltage
Parameter
Rating
–0.5V to +7.0V –20mA +20mA –0.5V to VCC + 0.5V –20mA +20mA –0.5V to VCC + 0.5V ±50mA ±50mA –65°C to +150°C ±300mA 140°C
DC Output Source or Sink Current Storage Temperature DC Latch-Up Source or Sink Current Junction Temperature
ICC or IGND DC VCC or Ground Current per Output Pin
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to absolute maximum ratings.
Symbol
VCC Supply Voltage ACQ ACTQ VI VO TA ∆V / ∆t ∆V / ∆t Input Voltage Output Voltage Operating Temperature
Parameter
Rating
2.0V to 6.0V 4.5V to 5.5V 0V to VCC 0V to VCC –40°C to +85°C 125mV/ns 125mV/ns
Minimum Input Edge Rate, ACQ Devices: VIN from 30% to 70% of VCC, VCC @ 3.0V, 4.5V, 5.5V Minimum Input Edge Rate, ACTQ Devices: VIN from 0.8V to 2.0V, VCC @ 4.5V, 5.5V
В©1989 Fairchild Semiconductor Corporation 74ACQ244, 74ACTQ244 Rev. 1.3
www.fairchildsemi.com 3
74ACQ244, 74ACTQ244 Quiet Seriesв„ў Octal Buffer/Line Driver with 3-STATE Outputs
DC Electrical Characteristics for ACQ
TA = +25В°C Symbol
VIH
TA = –40°C to +85°C Units
V 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 ±1.0 75 –75 µA mA mA µA µA V V V
Parameter
Minimum HIGH Level Input Voltage
VCC (V)
3.0 4.5 5.5 3.0 4.5 5.5 3.0 4.5 5.5
Conditions
VOUT = 0.1V or VCC – 0.1V VOUT = 0.1V or VCC – 0.1V IOUT = –50µA
Typ.
1.5 2.25 2.75 1.5 2.25 2.75 2.99 4.49 5.49 2.1
Guaranteed Limits
3.15 3.85 0.9 1.35 1.65 2.9 4.4 5.4 2.56 3.86 4.86
VIL
Maximum LOW Level Input Voltage
VOH
Minimum HIGH Level Output Voltage
VIN = VIL or VIH: 3.0 4.5 5.5 VOL Maximum LOW Level Output Voltage 3.0 4.5 5.5 VIN = VIL or VIH: 3.0 4.5 5.5 IIN
(3)
IOH = –12mA IOH = –24mA IOH = –24mA(1) 0.002 0.001 0.001 IOL = 12mA IOL = 24mA IOL = 24mA(1) VI = VCC, GND VOLD = 1.65V Max. VOHD = 3.85V Min. VIN = VCC or GND VI (OE) = VIL, VIH; VI = VCC, GND; VO = VCC, GND Figures 1 & 2(4) Figures 1 & 2(4)
(5)
IOUT = 50ВµA
0.1 0.1 0.1 0.36 0.36 0.36 В±0.1
Maximum Input Leakage Current Minimum Dynamic Output Current(2) Maximum Quiescent Supply Current Maximum 3-STATE Leakage Current Quiet Output Maximum Dynamic VOL Quiet Output Minimum Dynamic VOL Minimum HIGH Level Dynamic Input Voltage Maximum LOW Level Dynamic Input Voltage
5.5 5.5 5.5 5.5 5.5
IOLD IOHD ICC(3) IOZ
4.0 В±0.25
40.0 В±2.5
VOLP VOLV VIHD VILD
5.0 5.0 5.0 5.0
1.1 –0.6 3.1 1.9
1.5 –1.2 3.5 1.5
V V V V
(5)
Notes: 1. All outputs loaded thresholds on input associated with output under test. 2. Maximum test duration 2.0ms, one output loaded at a time. 3. IIN and ICC @ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V VCC. 4. Max number of outputs defined as (n). Data Inputs are driven 0V to 5V. One output @ GND. 5. Max number of Data Inputs (n) switching. (n – 1) Inputs switching 0V to 5V (ACQ). Input-under-test switching: 5V to threshold (VILD), 0V to threshold (VIHD), f = 1MHz.
В©1989 Fairchild Semiconductor Corporation 74ACQ244, 74ACTQ244 Rev. 1.3 www.fairchildsemi.com 4
74ACQ244, 74ACTQ244 Quiet Seriesв„ў Octal Buffer/Line Driver with 3-STATE Outputs
DC Electrical Characteristics for ACTQ
TA = +25В°C Symbol
VIH VIL VOH
TA = –40°C to +85°C Units
V V V 2.0 2.0 0.8 0.8 4.4 5.4 3.76 4.76 0.1 0.1 0.44 0.44 ±1.0 ±2.5 1.5 75 –75 µA µA mA mA mA µA V V V V V
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
Conditions
VOUT = 0.1V or VCC – 0.1V VOUT = 0.1V or VCC – 0.1V IOUT = –50µA VIN = VIL or VIH:
Typ.
1.5 1.5 1.5 1.5 4.49 5.49 2.0 2.0 0.8 0.8 4.4 5.4
Guaranteed Limits
4.5 5.5 VOL Maximum LOW Level Output Voltage 4.5 5.5
IOH = –24mA IOH = –24mA(6) 0.001 0.001 VIN = VIL or VIH: IOL = 24mA IOL = 24mA(6) VI = VCC, GND VI = VIL, VIH; VO = VCC, GND VI = VCC – 2.1V VOLD = 1.65V Max. VOHD = 3.85V Min. VIN = VCC or GND Figures 1 & 2(8) Figures 1 & 2(8)
(9)
3.86 4.86 0.1 0.1 0.36 0.36 В±0.1 В±0.25 0.6
IOUT = 50ВµA
4.5 5.5 IIN
(3)
Maximum Input Leakage Current Maximum 3-STATE Leakage Current Maximum ICC/Input Minimum Dynamic Output Current(7) Maximum Quiescent Supply Current Quiet Output Maximum Dynamic VOL Quiet Output Minimum Dynamic VOL Minimum HIGH Level Dynamic Input Voltage Maximum LOW Level Dynamic Input Voltage
5.5 5.5 5.5 5.5 5.5 5.5 5.0 5.0 5.0 5.0
IOZ ICCT IOLD IOHD ICC
(3)
4.0 1.1 –0.6 1.9 1.2 1.5 –1.2 2.2 0.8
40.0
VOLP VOLV VIHD VILD
(9)
Notes: 6. All outputs loaded thresholds on input associated with output under test. 7. Maximum test duration 2.0ms, one output loaded at a time. 8. Max number of outputs defined as (n). Data Inputs are driven 0V to 3V. One output @ GND. 9. Max number of Data Inputs (n) switching. (n–1) Inputs switching 0V to 3V (ACTQ). Input-under-test switching: 3V to threshold (VILD), 0V to threshold (VIHD), f = 1 MHz.
В©1989 Fairchild Semiconductor Corporation 74ACQ244, 74ACTQ244 Rev. 1.3
www.fairchildsemi.com 5
74ACQ244, 74ACTQ244 Quiet Seriesв„ў Octal Buffer/Line Driver with 3-STATE Outputs
AC Electrical Characteristics for ACQ
TA = +25В°C, CL = 50pF Symbol
tPHL, tPLH tPZL , tPZH tPHZ, tPLZ
TA = –40°C to +85°C, CL = 50pF Min.
2.0 1.5 2.5 1.5 1.0 1.0
Parameter
Propagation Delay Data to Output Output Enable Time Output Disable Time
VCC (V)(10)
3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0
Min.
2.0 1.5 2.5 1.5 1.0 1.0
Typ.
7.0 5.0 8.0 6.5 9.0 7.5 1.0 0.5
Max.
9.0 6.0 12.0 8.0 13.5 9.0 1.5 1.0
Max.
9.5 6.5 12.5 8.5 14.0 9.5 1.5 1.0
Units
ns ns ns ns
tOSHL, tOSLH Output to Output Skew Data to Output(11)
Note: 10. Voltage range 5.0 is 5.0V В± 0.5V. Voltage range 3.3 is 3.3V В± 0.3V. 11. 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.
AC Electrical Characteristics for ACTQ
TA = +25В°C, CL = 50pF Symbol
tPHL, tPLH tPZL, tPZH tPHZ, tPLZ
TA = –40°C to +85°C, CL = 50pF Min.
1.5 1.5 1.0
Parameter
Propagation Delay, Data to Output Output Enable Time Output Disable Time
VCC (V)(12)
5.0 5.0 5.0 5.0
Min.
1.5 1.5 1.0
Typ.
5.5 7.0 8.0 0.5
Max.
6.5 8.5 9.5 1.0
Max.
7.0 9.0 10.0 1.0
Units
ns ns ns ns
tOSHL, tOSLH Output to Output Skew, Data to Output(13) Notes: 12. Voltage range 5.0 is 5.0V В± 0.5V.
13. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate ou |