SN74HC147N

XBLW SN74HC/HCT147 10-to-4 Line Priority Encoder General Description The SN74HC/HCT147 9-input priority encoders accept data from nine active LOW inputs (A0 to A8) — — and provide a binary representation on the four active LOW outputs (Y0 to Y3). A priority is assigned to each input so that when two or more inputs are simultaneously active, the input with the highest priority is represented on the output, with input line A8 having the highest priority. The devices provide the 10-line to 4-line priority encoding function by use of the implied decimal “zero”. The “zero” is encoded when all nine data inputs are HIGH, forcing all four outputs HIGH. Features  Input levels: For SN74HC147: CMOS level For SN74HCT147: TTL level  Encodes 10-line decimal to 4-line BCD  Useful for 10-position switch encoding  Used in code converters and generators  Specified from -40℃ to +125℃  Packaging information: DIP16/SOP16/TSSOP16 Ordering Information Product Model XBLW SN74HC147N XBLW SN74HC147DTR XBLW SN74HC147TDTR XBLW SN74HCT147N XBLW SN74HCT147DTR XBLW SN74HCT147TDTR Package Type DIP-16 SOP-16 TSSOP-16 DIP-16 SOP-16 TSSOP-16 Marking 74HC147N 74HC147 74HC147 74HCT147N 74HCT147 74HCT147 Packing Tube Tape Tape Tube Tape Tape Packing Qty 1000Pcs/Box 2500Pcs/Reel 3000Pcs/Reel 1000Pcs/Box 2500Pcs/Reel 3000Pcs/Reel Block Diagram And Pin Description Block Diagram Figure 1. Logic symbol XBLWversion1.0 www.xinboleic.com Technical Support:4009682003 1 / 14 XBLW SN74HC/HCT147 10-to-4 Line Priority Encoder Figure 2. IEC logic symbol Figure 3. Functional diagram Figure 4. Logic diagram Pin Configurations XBLWversion1.0 www.xinboleic.com Technical Support:4009682003 2 / 14 XBLW SN74HC/HCT147 10-to-4 Line Priority Encoder Pin Description Pin No. Pin Name Description 1 A3 decimal data input (active LOW) 2 A4 decimal data input (active LOW) 3 — A5 decimal data input (active LOW) 4 A6 decimal data input (active LOW) 5 — A7 decimal data input (active LOW) 6 Y2 BCD address output (active LOW) 7 Y1 GND BCD address output (active LOW) 8 ground (0V) — 9 Y0 BCD address output (active LOW) 10 A8 decimal data input (active LOW) 11 A0 decimal data input (active LOW) 12 A1 decimal data input (active LOW) 13 A2 decimal data input (active LOW) 14 Y3 BCD address output (active LOW) 15 n.c. 16 VCC not connected supply voltage Note: H=HIGH voltage level; L=LOW voltage level; X = don’t care. Function Table Input Output A0 H A1 H A2 H A3 H A4 H A5 H A6 H A7 H X X X X X X X X X X X X X X X X X X X X X X X X X X X X X L X X X L H X X L H X L H H L H H H XBLWversion1.0 A8 H Y3 H Y2 H Y1 H X L L H H L L H L H H H L H H H L L L L H H H H L L H H H H H H L H L H H H H H L H H H H H H H H H L L H H H H H H H L H H H H H H H H H L www.xinboleic.com Technical Support:4009682003 Y0 H 3 / 14 XBLW SN74HC/HCT147 10-to-4 Line Priority Encoder Electrical Parameter Absolute Maximum Ratings (Voltages are referenced to GND (ground=0V), unless otherwise specified.) Parameter Symbol Conditions supply voltage VCC Min. -0.5 Max. +7.0 Unit - input clamping current IIK VI < -0.5V or VI > VCC+0.5V - ±20 mA output clamping current IOK VO < -0.5V or VO > VCC+0.5V - ±20 mA output current IO -0.5V < VO < VCC+0.5V ±25 mA supply current - ICC - -50 +50 mA +150 mA 500 mW ground current IGND storage temperature Tstg - -65 total power dissipation Ptot - - soldering temperature TL - DIP SOP/TSSOP 10s Note: [1] For DIP16 packages: above 70℃ the value of Ptot derates linearly with 12mW/K. 245 260 V ℃ ℃ [2] For SOP16 packages: above 70℃ the value of Ptot derates linearly with 8mW/K. [3] For (T)SSOP16 packages: above 60℃ the value of Ptot derates linearly with 5.5mW/K Recommended Operating Conditions Parameter Symbol Conditions Max. Unit 5.0 6.0 V - VCC V - VCC V 1.67 625 ns/V 139 ns/V Min. Typ. 2.0 SN74HC147 supply voltage VCC input voltage VI output voltage VO input transition rise and fall rate VCC=2.0V Δt/ΔV VCC=4.5V - VCC=6.0V - 83 ns/V ambient temperature Tamb -40 - +125 ℃ supply voltage VCC 4.5 5.0 5.5 V 0 - VCC V - VCC V input voltage VI output voltage VO input transition rise and fall rate ambient temperature XBLWversion1.0 - 0 - SN74HCT147 - 0 - - 0 Δt/ΔV VCC=4.5V - 1.67 139 ns/V Tamb - -40 - +125 ℃ www.xinboleic.com Technical Support:4009682003 4 / 14 XBLW SN74HC/HCT147 10-to-4 Line Priority Encoder Electrical Characteristics DC Characteristics 1 (Tamb=25℃, voltages are referenced to GND (ground=0V), unless otherwise specified.) Parameter Conditions Symbol Min. Typ. Max. Unit - V SN74HC147 HIGH-level input voltage LOW-level input voltage HIGH-level output voltage LOW-level output voltage VIH VIL VOH VCC=2.0V 1.5 1.2 VCC=4.5V 3.15 2.4 VCC=6.0V 4.2 3.2 VCC=2.0V - VCC=4.5V VI=VIH or VIL - VI=VIH or VIL supply current input capacitance V 0.8 0.5 V 2.1 1.35 V 1.9 2.8 1.8 V 2.0 IO=-20uA; VCC=4.5V 4.5 - V 4.4 IO=-20uA; VCC=6.0V 5.9 6.0 IO=-4.0mA; VCC=4.5V 3.98 4.32 IO=-5.2mA; VCC=6.0V 5.48 5.81 IO=20uA; VCC=2.0V - IO=20uA; VCC=6.0V IO=4.0mA; VCC=4.5V IO=5.2mA; VCC=6.0V input leakage current V VCC=6.0V IO=-20uA; VCC=2.0V IO=20uA; VCC=4.5V VOL - - V V - V V 0 0.1 V 0 0.1 V 0 0.1 V 0.15 0.26 V - 0.16 0.26 V - II VI=VCC or GND; VCC=6.0V - - ±1.0 uA ICC VI=VCC or GND; IO=0A; VCC=6.0V - - 8.0 uA - 3.5 - pF CI SN74HCT147 HIGH-level input voltage VIH VCC=4.5V to 5.5V 2.0 1.6 - V LOW-level input voltage VIL VCC=4.5V to 5.5V - 1.2 0.8 V HIGH-level output voltage VOH VI=VIH or VIL; VCC=4.5V IO=-20uA 4.4 4.5 V IO=-4.0mA 3.98 4.32 - V LOW-level output voltage VOL VI=VIH or VIL; VCC=4.5V IO=20uA - 0 0.1 V 0.26 V input leakage current - 0.16 II VI=VCC or GND; VCC=5.5V - - ±1.0 uA supply current ICC - - 8.0 uA additional supply current ΔICC VI=VCC or GND; IO=0A; VCC=5.5V VI=VCC-2.1V; other inputs at VCC or GND; IO=0A; VCC=4.5V to 5.5V - 100 360 uA input capacitance CI - - 3.5 - pF XBLWversion1.0 IO=4.0mA www.xinboleic.com Technical Support:4009682003 5 / 14 XBLW SN74HC/HCT147 10-to-4 Line Priority Encoder DC Characteristics 2 (Tamb=-40℃ to +85℃, voltages are referenced to GND (ground=0V), unless otherwise specified.) Parameter Symbol Conditions Min. Typ. Max. Unit VCC=2.0V 1.5 3.15 - V VCC=4.5V - 4.2 - - V VCC=6.0V - - 0.5 V VCC=2.0V - V - - 1.35 V - V IO=-20uA; VCC=2.0V 1.9 1.8 4.4 - V IO=-20uA; VCC=4.5V - IO=-20uA; VCC=6.0V 5.9 - - IO=-4.0mA; VCC=4.5V 3.84 - - 5.34 - V IO=-5.2mA; VCC=6.0V - - - 0.1 V IO=20uA; VCC=2.0V V - - 0.1 V - - - - - SN74HC147 HIGH-level input voltage LOW-level input voltage HIGH-level output voltage LOW-level output voltage VIH VIL VCC=4.5V VCC=6.0V VOH VI=VIH or VIL IO=20uA; VCC=4.5V VOL VI=VIH or VIL IO=20uA; VCC=6.0V IO=4.0mA; VCC=4.5V IO=5.2mA; VCC=6.0V V V 0.1 V 0.33 V - 0.33 V input leakage current II VI=VCC or GND; VCC=6.0V - - ±1.0 uA supply current ICC VI=VCC or GND; IO=0A; VCC=6.0V - - 80 uA SN74HCT147 HIGH-level input voltage VIH VCC=4.5V to 5.5V 2.0 - - V LOW-level input voltage VIL VCC=4.5V to 5.5V - - 0.8 V HIGH-level output voltage VOH VI=VIH or VIL; VCC=4.5V IO=-20uA 4.4 - V IO=-4.0mA 3.84 - V LOW-level output voltage VOL VI=VIH or VIL; VCC=4.5V IO=20uA - - 0.1 V - V input leakage current - 0.33 II VI=VCC or GND; VCC=5.5V - - ±1.0 uA supply current ICC - - 80 uA additional supply current ΔICC VI=VCC or GND; IO=0A; VCC=5.5V VI=VCC-2.1V; other inputs at VCC or GND; IO=0A; VCC=4.5V to 5.5V - - 450 uA XBLWversion1.0 www.xinboleic.com IO=4.0mA Technical Support:4009682003 6 / 14 XBLW SN74HC/HCT147 10-to-4 Line Priority Encoder DC Characteristics 3 (Tamb=-40℃ to +125℃, voltages are referenced to GND (ground=0V), unless otherwise specified.) Parameter Symbol Conditions Min. Typ. Max. Unit VCC=2.0V 1.5 3.15 - V VCC=4.5V - VCC=6.0V - - V 4.2 - V VCC=2.0V - - 0.5 V - - 1.35 V - V IO=-20uA; VCC=2.0V 1.9 1.8 4.4 - V IO=-20uA; VCC=4.5V - IO=-20uA; VCC=6.0V 5.9 - - IO=-4.0mA; VCC=4.5V 3.7 - - 5.2 - V IO=-5.2mA; VCC=6.0V - - - 0.1 V IO=20uA; VCC=2.0V V - - 0.1 V - - 0.1 V - - 0.4 V - - 0.4 V SN74HC147 HIGH-level input voltage LOW-level input voltage HIGH-level output voltage LOW-level output voltage VIH VIL VCC=4.5V VCC=6.0V VOH VI=VIH or VIL IO=20uA; VCC=4.5V VOL VI=VIH or VIL IO=20uA; VCC=6.0V IO=4.0mA; VCC=4.5V IO=5.2mA; VCC=6.0V V V input leakage current II VI=VCC or GND; VCC=6.0V - - ±1.0 uA supply current ICC VI=VCC or GND; IO=0A; VCC=6.0V - - 160 uA SN74HCT147 HIGH-level input voltage VIH VCC=4.5V to 5.5V 2.0 - - V LOW-level input voltage VIL VCC=4.5V to 5.5V - - 0.8 V HIGH-level output voltage VOH VI=VIH or VIL; VCC=4.5V - - V - V LOW-level output voltage VOL VI=VIH or VIL; VCC=4.5V 0.1 V input leakage current II supply current ICC additional supply current ΔICC XBLWversion1.0 IO=-20uA 4.4 IO=-4.0mA 3.7 IO=20uA - - - - 0.4 V VI=VCC or GND; VCC=5.5V - - ±1.0 uA VI=VCC or GND; IO=0A; VCC=5.5V VI=VCC-2.1V; other inputs at VCC or GND; IO=0A; VCC=4.5V to 5.5V - - 160 uA - - 490 uA www.xinboleic.com IO=4.0mA Technical Support:4009682003 7 / 14 XBLW SN74HC/HCT147 10-to-4 Line Priority Encoder AC Characteristics 2 (Tamb=-40℃ to +85℃, GND=0V, tr=tf=6ns, CL=50pF, unless otherwise specified.) Parameter Symbol Conditions Min. Typ. Max. Unit - - 200 ns - - 40 ns - - 34 ns - - 95 ns - - 19 ns - - 16 ns - - 44 ns - - 19 ns Min. Typ. Max. Unit - - 240 ns - - 48 ns - - 41 ns - - 110 ns - - 22 ns - - 19 ns - - 53 ns - - 22 ns SN74HC147 — VCC=2.0V — An to Yn propagation delay tpd see Figure 6[1] VCC=4.5V VCC=6.0V VCC=2.0V transition time tt see Figure 6[2] VCC=4.5V VCC=6.0V SN74HCT147 — — An to Yn propagation delay tpd transition time tt see Figure 6[1] VCC=4.5V VCC=4.5V; see Figure 6[2] Note: [1] tpd is the same as tPLH and tPHL. [2] tt is the same astTHL and tTLH. 3.3.6 AC Characteristics 3 (Tamb=-40℃ to +125℃, GND=0V, tr=tf=6ns, CL=50pF, unless otherwise specified.) Parameter Symbol Conditions SN74HC147 — VCC=2.0V — An to Yn propagation delay tpd see Figure 6[1] VCC=4.5V VCC=6.0V VCC=2.0V transition time tt see Figure 6[2] VCC=4.5V VCC=6.0V SN74HCT147 — — An to Yn propagation delay tpd transition time tt see Figure 6[1] VCC=4.5V VCC=4.5V; see Figure 6[2] Note: [1] tpd is the same as tPLH and tPHL. [2] tt is the same astTHL and tTLH XBLWversion1.0 www.xinboleic.com Technical Support:4009682003 8 / 14 XBLW SN74HC/HCT147 10-to-4 Line Priority Encoder AC Characteristics 1 (Tamb=25℃, GND=0V, tr=tf=6ns, CL=50pF, unless otherwise specified.) Parameter Symbol Conditions Min. Typ. Max. Unit - 50 160 ns 18 32 ns 15 27 ns 14 19 75 ns 7 15 ns - 6 6 ns - 30 - pF VCC=4.5V - 20 35 ns VCC=5.0V; CL=15pF - 17 - ns - 7 15 ns - 33 - pF SN74HC147 — VCC=2.0V — An to Yn propagation delay tpd see Figure 6[1] VCC=4.5V VCC=5.0V; CL=15pF VCC=6.0V VCC=2.0V transition time tt see Figure 6[2] VCC=4.5V VCC=6.0V power dissipation capacitanc e CPD VI=GND to VCC[3] - ns SN74HCT147 — — An to Yn propagation delay transition time power dissipation capacitanc e tpd see Figure 6[1] tt CPD VCC=4.5V; see Figure 6[2] VI=GND to VCC- 1.5V[3] Note: [1] tpd is the same as tPLH and tPHL. [2] tt is the same astTHL and tTLH. [3] CPD isused to determine the dynamic power dissipation (PD in uW). PD=CPD ×VCC2 ×fi+∑(CL×VCC2 ×fo) where: f i=input frequency in MHz; fo=output frequency in MHz; CL=output load capacitance in pF; VCC=supply voltage in V; ∑(CL×VCC2×fo)=sum of outputs. XBLWversion1.0 www.xinboleic.com Technical Support:4009682003 9 / 14 XBLW SN74HC/HCT147 10-to-4 Line Priority Encoder Testing Circuit AC Testing Circuit Figure 5. Test circuit for measuring switching times Definitions for test circuit: CL=Load capacitance including jig and probe capacitance. RT=Termination resistance should be equal to the output impedance Zo of the pulse generator. RL=Load resistance. S1=Test selection switch AC Testing Waveforms — — Figure 6. Input (An) to output (Yn) propagation delays and output transition times Measurement Points Input Type Output SN74HC147 VM VM VX VY 0.5×VCC 0.5×VCC 0.1×VCC 0.9×VCC SN74HCT147 1.3V 1.3V 0.1×VCC 0.9×VCC 4.4 Test Data Type Input Load S1 position VI t r ,t f CL RL tPLH , tPHL SN74HC147 VCC 6ns 15pF, 50pF 1kΩ open SN74HCT147 3V 6ns 15pF, 50pF 1kΩ open XBLWversion1.0 www.xinboleic.com Technical Support:4009682003 10 / 14 XBLW SN74HC/HCT147 10-to-4 Line Priority Encoder Package Information DIP16 XBLWversion1.0 www.xinboleic.com Technical Support:4009682003 11 / 14 XBLW SN74HC/HCT147 10-to-4 Line Priority Encoder SOP16 XBLWversion1.0 www.xinboleic.com Technical Support:4009682003 12 / 14 XBLW SN74HC/HCT147 10-to-4 Line Priority Encoder TSSOP16 XBLWversion1.0 www.xinboleic.com Technical Support:4009682003 13 / 14 XBLW SN74HC/HCT147 10-to-4 Line Priority Encoder Statement：  Shenzhen xinbole electronics co., ltd. reserves the right to change the product specifications, without notice! Before placing an order, the customer needs to confirm whether the information obtained is the latest version, and verify the integrity of the relevant information.  Any semiconductor product is liable to fail or malfunction under certain conditions, and the buyer shall be responsible for complying with safety standards in the system design and whole machine manufacturing using Shenzhen xinbole electronics co., ltd products, and take appropriate security measures to avoid the potential risk of failure may result in personal injury or property losses of the situation occurred!  This document is for referenceonly,and the actual use should be based on the application test results.  Product performance is never ending, Shenzhen xinbole electronics co., ltd will be dedicated to provide customers with better performance, better quality of integrated circuit products. XBLWversion1.0 www.xinboleic.com Technical Support:4009682003 14 / 14