SN54AHC244 PACKAGE SN74AHC244 DGV, PACKAGE (TOP VIEW) description
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SN54AHC244, SN74AHC244 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
SN54AHC244 PACKAGE SN74AHC244 DGV, PACKAGE (TOP VIEW)
description/ordering information
These octal buffers/drivers designed specifically improve performance density 3-state memory-address drivers, clock drivers, bus-oriented receivers transmitters. 'AHC244 devices organized 4-bit buffers/line drivers with separate output-enable (OE) inputs. When low, device passes data from inputs outputs. When high, outputs high-impedance state. ensure high-impedance state during power power down, should tied through pullup resistor; minimum value resistor determined current-sinking capability driver.
SN54AHC244 PACKAGE (TOP VIEW)
ORDERING INFORMATION
PDIP SOIC 40°C -40°C 85°C SSOP TSSOP TVSOP CDIP -55°C 125°C LCCC PACKAGE Tube Tube Tape reel Tape reel Tape reel Tube Tape reel Tape reel Tube Tube Tube ORDERABLE PART NUMBER SN74AHC244N SN74AHC244DW SN74AHC244DWR SN74AHC244NSR SN74AHC244DBR SN74AHC244PW SN74AHC244PWR SN74AHC244DGVR SNJ54AHC244J SNJ54AHC244W SNJ54AHC244FK TOP-SIDE MARKING SN74AHC244N AHC244 AHC244 HA244 HA244 HA244 SNJ54AHC244J SNJ54AHC244W SNJ54AHC244FK
Package drawings, standard packing quantities, thermal data, symbolization, design guidelines available www.ti.com/sc/package.
Please aware that important notice concerning availability, standard warranty, critical applications Texas Instruments semiconductor products disclaimers thereto appears this data sheet.
Copyright 2003, Texas Instruments Incorporated
products compliant MIL-PRF-38535, parameters tested unless otherwise noted. other products, production processing does necessarily include testing parameters.
PRODUCTION DATA information current publication date. Products conform specifications terms Texas Instruments standard warranty. Production processing does necessarily include testing parameters.
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SN54AHC244, SN74AHC244 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
FUNCTION TABLE (each 4-bit buffer/driver) INPUTS OUTPUT
logic diagram (positive logic)
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, -0.5 Input voltage range, (see Note -0.5 Output voltage range, (see Note -0.5 Input clamp current, Output clamp current, VCC) Continuous output current, VCC) Continuous current through Package thermal impedance, (see Note package 70°C/W package 92°C/W package 58°C/W package 69°C/W package 60°C/W package 83°C/W Storage temperature range, Tstg -65°C 150°C
Stresses beyond those listed under "absolute maximum ratings" cause permanent damage device. These stress ratings only, functional operation device these other conditions beyond those indicated under "recommended operating conditions" implied. Exposure absolute-maximum-rated conditions extended periods affect device reliability. NOTES: input output voltage ratings exceeded input output current ratings observed. package thermal impedance calculated accordance with JESD 51-7.
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SN54AHC244, SN74AHC244 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
recommended operating conditions (see Note
SN54AHC244 Supply voltage High-level input voltage Low-level input voltage Input voltage Output voltage High-level output current Low-level output current 3.85 1.65 SN74AHC244 3.85 1.65 UNIT
ns/V
Input transition rise fall rate
Operating free-air temperature NOTE unused inputs device must held ensure proper device operation. Refer application report, Implications Slow Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS GND, (OE) GND, 2.58 3.94 0.36 0.36 ±0.1 ±0.25 25°C SN54AHC244 2.48 ±2.5 SN74AHC244 2.48 0.44 0.44 ±2.5 UNIT
products compliant MIL-PRF-38535, this parameter production tested
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SN54AHC244, SN74AHC244 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
switching characteristics over recommended operating free-air temperature range, (unless otherwise noted) (see Figure
PARAMETER tPLH tPHL tPZH tPZL tPHZ tPLZ tPLH tPHL tPZH tPZL tPHZ tPLZ FROM (INPUT) (OUTPUT) LOAD CAPACITANCE 25°C 5.8* 5.8* 6.6* 6.6* 10.3 10.3 8.4* 8.4* 10.6* 10.6* 9.7* 9.7* 11.9 11.9 14.1 14.1 1.5** SN54AHC244 12.5* 12.5* 13.5 13.5 SN74AHC244 12.5 12.5 13.5 13.5 UNIT
tsk(o) products compliant MIL-PRF-38535, this parameter production tested. products compliant MIL-PRF-38535, this parameter does apply.
switching characteristics over recommended operating free-air temperature range, (unless otherwise noted) (see Figure
PARAMETER tPLH tPHL tPZH tPZL tPHZ tPLZ tPLH tPHL tPZH tPZL tPHZ tPLZ FROM (INPUT) (OUTPUT) LOAD CAPACITANCE 25°C 3.9* 3.9* 4.7* 4.7* 5.5* 5.5* 7.3* 7.3* 7.2* 7.2* SN54AHC244 6.5* 6.5* 8.5* 8.5* 8.5* 8.5* 10.5 10.5 10.5 10.5 SN74AHC244 10.5 10.5 10.5 10.5 UNIT
tsk(o) products compliant MIL-PRF-38535, this parameter production tested. products compliant MIL-PRF-38535, this parameter does apply.
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SN54AHC244, SN74AHC244 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
noise characteristics, 25°C (see Note
PARAMETER VOL(P) VOL(V) VOH(V) VIH(D) Quiet output, maximum dynamic Quiet output, minimum dynamic Quiet output, minimum dynamic High-level dynamic input voltage SN74AHC244 -0.2 UNIT
VIL(D) Low-level dynamic input voltage NOTE Characteristics surface-mount packages only.
operating characteristics, 25°C
PARAMETER Power dissipation capacitance TEST CONDITIONS load, UNIT
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SN54AHC244, SN74AHC244 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
PARAMETER MEASUREMENT INFORMATION
Open
From Output Under Test (see Note
Test Point
From Output Under Test (see Note
TEST tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open Drain
Open
LOAD CIRCUIT TOTEM-POLE OUTPUTS
LOAD CIRCUIT 3-STATE OPEN-DRAIN OUTPUTS Timing Input Data Input VOLTAGE WAVEFORMS SETUP HOLD TIMES tPZL tPZH Output Waveform (see Note tPLZ tPHZ
Input
VOLTAGE WAVEFORMS PULSE DURATION
Input tPLH In-Phase Output tPHL Out-of-Phase Output
tPHL
Output Control
tPLH
Output Waveform (see Note
VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES INVERTING NONINVERTING OUTPUTS
VOLTAGE WAVEFORMS ENABLE DISABLE TIMES LOW- HIGH-LEVEL ENABLING
NOTES: includes probe capacitance. Waveform output with internal conditions such that output except when disabled output control. Waveform output with internal conditions such that output high except when disabled output control. input pulses supplied generators having following characteristics: MHz, outputs measured time with input transition measurement. parameters waveforms applicable devices.
Figure Load Circuit Voltage Waveforms
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MECHANICAL DATA
MCFP006B JANUARY 1995 REVISED JULY 2003
(R-GDFP-F20)
0.300 (7,62) 0.245 (6,22)
CERAMIC DUAL FLATPACK
Base Seating Plane
0.045 (1,14) 0.026 (0,66)
0.100 (2,54) 0.045 (1,14) 0.320 (8,13)
0.009 (0,23) 0.004 (0,10)
0.022 (0,56) 0.015 (0,38)
0.050 (1,27) 0.540 (13,72)
0.005 (0,13) Places
0.370 (9,40) 0.250 (6,35)
0.370 (9,40) 0.250 (6,35) 4040180-4 07/03
NOTES:
linear dimensions inches (millimeters). This drawing subject change without notice. This package hermetically sealed with ceramic using glass frit. Index point provided terminal identification only. Falls within Mil-Std 1835 GDFP2-F20
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MECHANICAL DATA
MLCC006B OCTOBER 1996
(S-CQCC-N**)
TERMINAL SHOWN
LEADLESS CERAMIC CHIP CARRIER
TERMINALS
0.342 (8,69) 0.442 (11,23) 0.640 (16,26) 0.739 (18,78) 0.938 (23,83) 1.141 (28,99) 0.358 (9,09) 0.458 (11,63) 0.660 (16,76) 0.761 (19,32) 0.962 (24,43) 1.165 (29,59) 0.307 (7,80) 0.406 (10,31) 0.495 (12,58) 0.495 (12,58) 0.850 (21,6) 1.047 (26,6)
0.358 (9,09) 0.458 (11,63) 0.560 (14,22) 0.560 (14,22) 0.858 (21,8) 1.063 (27,0)
0.080 (2,03) 0.064 (1,63) 0.020 (0,51) 0.010 (0,25)
0.020 (0,51) 0.010 (0,25)
0.055 (1,40) 0.045 (1,14)
0.045 (1,14) 0.035 (0,89)
0.028 (0,71) 0.022 (0,54) 0.050 (1,27)
0.045 (1,14) 0.035 (0,89)
4040140 10/96 NOTES: linear dimensions inches (millimeters). This drawing subject change without notice. This package hermetically sealed with metal lid. terminals gold plated. Falls within JEDEC MS-004
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MECHANICAL
MPDI002C JANUARY 1995 REVISED DECEMBER 20002
(R-PDIP-T**)
PINS SHOWN
PLASTIC DUAL-IN-LINE PACKAGE
PINS
0.775 (19,69) 0.745 (18,92)
0.775 (19,69) 0.745 (18,92)
0.920 (23,37) 0.850 (21,59)
1.060 (26,92) 0.940 (23,88)
0.260 (6,60) 0.240 (6,10)
MS-100 VARIATION
0.070 (1,78) 0.045 (1,14)
0.045 (1,14) 0.030 (0,76)
0.020 (0,51)
0.325 (8,26) 0.300 (7,62) 0.015 (0,38) 0.200 (5,08) Seating Plane 0.125 (3,18) 0.010 (0,25) Gauge Plane
0.100 (2,54) 0.021 (0,53) 0.015 (0,38) 0.010 (0,25)
0.430 (10,92)
14/18 ONLY vendor option
4040049/E 12/2002
NOTES: linear dimensions inches (millimeters). This drawing subject change without notice. Falls within JEDEC MS-001, except minimum body lrngth (Dim lead shoulder width vendor option, either half full width.
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MECHANICAL DATA
MPDS006C FEBRUARY 1996 REVISED AUGUST 2000
(R-PDSO-G**)
PINS SHOWN 0,23 0,13
PLASTIC SMALL-OUTLINE
0,40
0,07
0,16 4,50 4,30 6,60 6,20
Gage Plane
0,25 0,75 0,50
Seating Plane 1,20 0,15 0,05 0,08
PINS
3,70 3,50
3,70 3,50
5,10 4,90
5,10 4,90
7,90 7,70
9,80 9,60
11,40 11,20
4073251/E 08/00 NOTES: linear dimensions millimeters. This drawing subject change without notice. Body dimensions include mold flash protrusion, exceed 0,15 side. Falls within JEDEC: 24/48 Pins MO-153 14/16/20/56 Pins MO-194
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MECHANICAL DATA
MSOI003E JANUARY 1995 REVISED SEPTEMBER 2001
(R-PDSO-G**)
PINS SHOWN 0.020 (0,51) 0.014 (0,35)
PLASTIC SMALL-OUTLINE PACKAGE
0.050 (1,27)
0.010 (0,25)
0.419 (10,65) 0.400 (10,15) 0.299 (7,59) 0.291 (7,39) 0.010 (0,25)
Gage Plane 0.010 (0,25) 0.050 (1,27) 0.016 (0,40)
Seating Plane 0.104 (2,65) 0.012 (0,30) 0.004 (0,10) PINS 0.004 (0,10)
0.410 (10,41) 0.400 (10,16)
0.462 (11,73) 0.453 (11,51)
0.510 (12,95) 0.500 (12,70)
0.610 (15,49) 0.600 (15,24)
0.710 (18,03) 0.700 (17,78) 4040000/E 08/01
NOTES:
linear dimensions inches (millimeters). This drawing subject change without notice. Body dimensions include mold flash protrusion exceed 0.006 (0,15). Falls within JEDEC MS-013
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MECHANICAL DATA
MSSO002E JANUARY 1995 REVISED DECEMBER 2001
(R-PDSO-G**)
PINS SHOWN 0,65 0,38 0,22 0,15
PLASTIC SMALL-OUTLINE
0,25 0,09 5,60 5,00 8,20 7,40
Gage Plane 0,25 0,95 0,55
Seating Plane 2,00 0,05 0,10
PINS
6,50
6,50
7,50
8,50
10,50
10,50
12,90
5,90
5,90
6,90
7,90
9,90
9,90
12,30 4040065 12/01
NOTES:
linear dimensions millimeters. This drawing subject change without notice. Body dimensions include mold flash protrusion exceed 0,15. Falls within JEDEC MO-150
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MECHANICAL DATA
MTSS001C JANUARY 1995 REVISED FEBRUARY 1999
(R-PDSO-G**)
PINS SHOWN
PLASTIC SMALL-OUTLINE PACKAGE
0,65
0,30 0,19
0,10
0,15 4,50 4,30 6,60 6,20 Gage Plane 0,25 0,75 0,50
Seating Plane 1,20 0,15 0,05 0,10
PINS
3,10
5,10
5,10
6,60
7,90
9,80
2,90
4,90
4,90
6,40
7,70
9,60
4040064/F 01/97 NOTES: linear dimensions millimeters. This drawing subject change without notice. Body dimensions include mold flash protrusion exceed 0,15. Falls within JEDEC MO-153
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