SN74F244DBR


   


  
SDFS063A − D2932, MARCH 1987 − REVISED OCTOBER 1993 • SN54F244 . . . J PACKAGE SN74F244 . . . DB, DW, OR N PACKAGE (TOP VIEW) 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers Package Options Include Plastic Small-Outline (SOIC) and Shrink Small-Outline (SSOP) Packages, Ceramic Chip Carriers, and Plastic and Ceramic DIPs 1OE 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 GND description These octal buffers and line drivers are designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. Taken together with the ′F240 and ′F241, these devices provide the choice of selected combinations of inverting and noninverting outputs, symmetrical OE (active-low output-enable) inputs, and complementary OE and OE inputs. 1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 VCC 2OE 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1 2Y4 1A1 1OE VCC SN54F244 . . . FK PACKAGE (TOP VIEW) The ′F244 is organized as two 4-bit buffers/line drivers with separate output enable (OE) inputs. When OE is low, the device passes data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state. 1A2 2Y3 1A3 2Y2 1A4 4 3 2 1 20 19 18 5 17 6 16 7 15 8 14 9 10 11 12 13 1Y1 2A4 1Y2 2A3 1Y3 2Y1 GND 2A1 1Y4 2A2 The SN74F244 is available in TI’s shrink small-outline package (DB), which provides the same I/O pin count and functionality of standard small-outline packages in less than half the printed-circuit-board area. 2OE • The SN54F244 is characterized for operation over the full military temperature range of − 55°C to 125°C. The SN74F244 is characterized for operation from 0°C to 70°C. FUNCTION TABLE (each buffer) INPUTS OE A OUTPUT Y L H H L L L H X Z Copyright  1993, Texas Instruments Incorporated      !"#$ % &'!!($ #%  )'*+&#$ ,#$(!,'&$% &!" $ %)(&&#$% )(! $.( $(!"%  (/#% %$!'"($% %$#,#!, 0#!!#$1- !,'&$ )!&(%%2 ,(% $ (&(%%#!+1 &+',( $(%$2  #++ )#!#"($(!%- • DALLAS, TEXAS 75265 • HOUSTON, TEXAS 77251−1443 POST OFFICE BOX 655303 POST OFFICE BOX 1443 2−1 

   


  
SDFS063A − D2932, MARCH 1987 − REVISED OCTOBER 1993 logic symbol† 1OE 1A1 1A2 1A3 1A4 1 logic diagram (positive logic) 1OE 1 EN 2 18 4 16 6 14 8 12 1A1 1Y1 2 18 4 16 1Y2 1Y3 1A2 6 2OE EN 14 1Y3 8 12 1A4 2A1 2A2 2A3 2A4 11 9 13 7 15 5 17 3 1Y2 1Y4 1A3 19 1Y1 1Y4 2Y1 2Y2 19 2OE 2Y3 2Y4 11 9 13 7 15 5 17 3 2Y1 2A1 † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. 2Y2 2A2 2Y3 2A3 2A4 2Y4 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)‡ Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −1.2 V to 7 V Input current range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −30 mA to 5 mA Voltage range applied to any output in the disabled or power-off state . . . . . . . . . . . . . . . . . . . −0.5 V to 5.5 V Voltage range applied to any output in the high state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to VCC Current into any output in the low state: SN54F244 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA SN74F244 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA Operating free-air temperature range: SN54F244 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55°C to 125°C SN74F244 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C ‡ Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTE 1: The input voltage ratings may be exceeded provided the input current ratings are observed. 2−2 • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • 

   


  
SDFS063A − D2932, MARCH 1987 − REVISED OCTOBER 1993 recommended operating conditions SN54F244 SN74F244 MIN NOM MAX MIN NOM MAX 4.5 5 5.5 4.5 5 5.5 UNIT VCC VIH Supply voltage VIL IIK Low-level input voltage 0.8 0.8 V Input clamp current −18 −18 mA IOH IOL High-level output current − 12 − 15 mA 64 mA TA Operating free-air temperature 70 °C High-level input voltage 2 2 Low-level output current V 48 −55 125 V 0 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK VCC = 4.5 V, VCC = 4.5 V VOH SN54F244 TYP† MAX TEST CONDITIONS VCC = 4.75 V, VOL VCC = 4.5 V IOZH IOZL VCC = 5.5 V, VCC = 5.5 V, II IIH VCC = 5.5 V, VCC = 5.5 V, MIN II = − 18 mA IOH = − 3 mA −1.2 IOH = − 12 mA IOH = − 15 mA 2.4 3.3 2 3.2 IOH = − 3 mA IOL = 48 mA IOS‡ Any A 0.38 IOL = 64 mA VO = 2.7 V VI = 2.7 V VI = 0.5 V VCC = 5.5 V, VO = 0 Outputs high 3.3 2 3.1 V −100 0.55 −50 −50 µA 0.1 0.1 mA µA 20 20 −1 −1 − 1.6 − 1.6 −225 −100 −225 40 60 60 90 60 90 Outputs disabled 60 90 60 † All typical values are at VCC = 5 V, TA = 25°C. ‡ Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second. 90 Outputs low • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • µA 50 60 VCC = 5.5 V, Outputs open V 50 40 ICC V 0.55 0.42 VO = 0.5 V VI = 7 V VCC = 5.5 V, −1.2 2.4 UNIT 2.7 OE IIL SN74F244 TYP† MAX MIN mA mA mA 2−3 

   


  
SDFS063A − D2932, MARCH 1987 − REVISED OCTOBER 1993 switching characteristics (see Note 2) PARAMETER FROM (INPUT) VCC = 5 V, CL = 50 pF, RL = 500 Ω, TA = 25°C TO (OUTPUT) VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX† ′F244 tPLH tPHL A Y tPZH tPZL OE Y tPHZ tPLZ OE Y SN74F244 MIN TYP MAX MIN MAX MIN MAX 1.7 3.6 5.2 2 6.5 1.7 6.2 1.7 3.6 5.2 2 7 1.7 6.5 1.2 3.9 5.7 2 7 1.2 6.7 1.2 5 7 2 8.5 1.2 8 1.2 4.1 6 2 7 1.2 7 1.2 4.1 6 2 7.5 1.2 7 † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. NOTE 2: Load circuits and waveforms are shown in Section 1. 2−4 • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • UNIT SN54F244 ns ns ns PACKAGE OPTION ADDENDUM www.ti.com 14-Oct-2022 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) 5962-9758601Q2A ACTIVE LCCC FK 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 59629758601Q2A SNJ54F 244FK 5962-9758601QRA ACTIVE CDIP J 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-9758601QR A SNJ54F244J 5962-9758601QRA ACTIVE CDIP J 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-9758601QR A SNJ54F244J 5962-9758601QSA ACTIVE CFP W 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-9758601QS A SNJ54F244W 5962-9758601QSA ACTIVE CFP W 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-9758601QS A SNJ54F244W JM38510/33203B2A ACTIVE LCCC FK 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 33203B2A Samples JM38510/33203B2A ACTIVE LCCC FK 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 33203B2A Samples JM38510/33203BRA ACTIVE CDIP J 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 33203BRA Samples JM38510/33203BRA ACTIVE CDIP J 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 33203BRA Samples JM38510/33203BSA ACTIVE CFP W 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 33203BSA Samples JM38510/33203BSA ACTIVE CFP W 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 33203BSA Samples M38510/33203B2A ACTIVE LCCC FK 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 33203B2A Samples M38510/33203B2A ACTIVE LCCC FK 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 33203B2A Samples M38510/33203BRA ACTIVE CDIP J 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 33203BRA Samples Addendum-Page 1 Samples Samples Samples Samples Samples PACKAGE OPTION ADDENDUM www.ti.com 14-Oct-2022 Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) M38510/33203BRA ACTIVE CDIP J 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 33203BRA Samples M38510/33203BSA ACTIVE CFP W 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 33203BSA Samples M38510/33203BSA ACTIVE CFP W 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 JM38510/ 33203BSA Samples SN54F244J ACTIVE CDIP J 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 SN54F244J Samples SN54F244J ACTIVE CDIP J 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 SN54F244J Samples SN74F244DB ACTIVE SSOP DB 20 70 RoHS & Green NIPDAU Level-1-260C-UNLIM F244 Samples SN74F244DB ACTIVE SSOP DB 20 70 RoHS & Green NIPDAU Level-1-260C-UNLIM F244 Samples SN74F244DBR ACTIVE SSOP DB 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 F244 Samples SN74F244DBR ACTIVE SSOP DB 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 F244 Samples SN74F244DW ACTIVE SOIC DW 20 25 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 F244 Samples SN74F244DW ACTIVE SOIC DW 20 25 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 F244 Samples SN74F244DWR ACTIVE SOIC DW 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 F244 Samples SN74F244DWR ACTIVE SOIC DW 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 F244 Samples SN74F244N ACTIVE PDIP N 20 20 RoHS & Non-Green NIPDAU N / A for Pkg Type 0 to 70 SN74F244N Samples SN74F244N ACTIVE PDIP N 20 20 RoHS & Non-Green NIPDAU N / A for Pkg Type 0 to 70 SN74F244N Samples SN74F244NE4 ACTIVE PDIP N 20 20 RoHS & Non-Green NIPDAU N / A for Pkg Type 0 to 70 SN74F244N Samples SN74F244NE4 ACTIVE PDIP N 20 20 RoHS & Non-Green NIPDAU N / A for Pkg Type 0 to 70 SN74F244N Samples SN74F244NSR ACTIVE SO NS 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 74F244 Samples SN74F244NSR ACTIVE SO NS 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 74F244 Samples Addendum-Page 2 PACKAGE OPTION ADDENDUM www.ti.com 14-Oct-2022 Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) Samples (4/5) (6) SN74F244NSRE4 ACTIVE SO NS 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 74F244 Samples SN74F244NSRE4 ACTIVE SO NS 20 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 74F244 Samples SNJ54F244FK ACTIVE LCCC FK 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 59629758601Q2A SNJ54F 244FK SNJ54F244FK ACTIVE LCCC FK 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 59629758601Q2A SNJ54F 244FK SNJ54F244J ACTIVE CDIP J 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-9758601QR A SNJ54F244J SNJ54F244J ACTIVE CDIP J 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-9758601QR A SNJ54F244J SNJ54F244W ACTIVE CFP W 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-9758601QS A SNJ54F244W SNJ54F244W ACTIVE CFP W 20 1 Non-RoHS & Green SNPB N / A for Pkg Type -55 to 125 5962-9758601QS A SNJ54F244W (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of