SN74HC190N

XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters General Description The SN74HC/HCT190 are asynchronously presettable up/down BCD decade counters. They contain four master/slave flip-flops with internal gating and steering logic to provide asynchronous preset and synchronous count-up and count-down operation. Asynchronous parallel load capability permits the counter to be preset to any desired number. Information present on the parallel data inputs (D0 to D3) is loaded into the counter and appears on the outputs when — the parallel load (PL) input is LOW. As indicated in the function table, this operation overrides the counting function. — — Counting is inhibited by a HIGH level on the count enable (CE) input. When CE is LOW internal state changes are initiated synchronously by the LOW-to-HIGH transition of the clock input. The up/down (U /D) input signal determines the direction of counting as indicated in the function table. The CE input may go LOW when the clock is in either state, however, the LOW-to-HIGH CE transition must occur only — — when the clock is HIGH. Also, the U/D input should be changed only when either CE or CP is HIGH. Overflow/underflow indications are provided by two types of outputs, the terminal count (TC) and ripple clock (RC). The TC output is normally LOW and goes HIGH when a circuit reaches zero in the count-down mode or reaches “9” in the count-up-mode. The TC output will remain HIGH until a state change occurs, either by counting or presetting, or until U/D is changed. Do not use the TC output as a clock signal because it is subject to decoding spikes. The TC signal is used internally to enable the RC — — output. When TC is HIGH and CE is LOW, the RC output follows the clock pulse (CP). This feature simplifies the design of multistage counters as shown in Figure 5 and 6. In Figure 5, each RC output is used as the clock input to the next higher stage. It is only necessary to — — inhibit the first stage to prevent counting in all stages, since a HIGH on CE inhibits the RC output pulse as indicated in the function table. The timing skew between state changes in the first and last stages is represented by the cumulative delay of the clock as it ripples through the preceding stages. This can be a disadvantage of this configuration in some applications. Figure 6 shows a method of causing state changes to occur simultaneously in all stages. The RC outputs propagate the carry/borrow signals in ripple fashion and all clock inputs are driven in parallel. In this configuration the duration of the clock LOW state must be long enough to allow the negative-going edge — of the carry/borrow signal to ripple through to the last stage before the clock goes HIGH. Since the RC output of any package goes HIGH shortly after its CP input goes HIGH there is no such restriction on the HIGHstate duration of the clock. In Figure.7, the configuration shown avoids ripple delays and their associated restrictions. Combining the — TC signals from all the preceding stages forms the CE input for a given stage. An enable must be included in each carry gate in order to inhibit counting. The TC output of a given stage it not affected by — its own CE signal therefore the simple inhibit scheme of Figure 5 and 6 does not apply. Features  Input levels: For SN74HC190: CMOS level For SN74HCT190: TTL level  Synchronous reversible counting  Asynchronous parallel load  Count enable control for synchronous expansion XBLWversion1.0 www.xinboleic.com Technical Support:4009682003 1 / 24 XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters  Single up/down control input  Specified from -40℃ to +125℃  Packaging information: DIP16/SOP16/TSSOP16 Ordering Information Product Model XBLW SN74HC190N XBLW SN74HC190DTR XBLW SN74HC190TDTR XBLW SN74HCT190N XBLW SN74HCT190DTR XBLW SN74HCT190TDTR Package Type DIP-16 SOP-16 TSSOP-16 DIP-16 SOP-16 TSSOP-16 Marking 74HC190N 74HC190 74HC190 74HCT190N 74HCT190 74HCT190 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 Figure 2. IEC logic symbol XBLWversion1.0 www.xinboleic.com Technical Support:4009682003 2 / 24 XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters Figure 3.Functional diagram Figure 4. Logic diagram Figure 5.N-stage ripple counter using ripple clock XBLWversion1.0 www.xinboleic.com Technical Support:4009682003 3 / 24 XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters Figure 6. Synchronous n-stage counter using ripple carry/borrow Figure 7. Synchronous n-stage counter with parallel gated carry/borrow Figure 8. Typical timing sequence XBLWversion1.0 www.xinboleic.com Technical Support:4009682003 4 / 24 XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters Pin Configurations Pin Description Pin No. 1 Pin Name Description D1 data input 2 Q1 flip-flop output 3 Q0 flip-flop output 4 CE count enable input (active LOW) 5 U/D up/down input 6 Q2 flip-flop output 7 Q3 flip-flop output 8 GND ground (0V) 9 D3 data input 10 D2 data input 11 PL parallel load input (active LOW) 12 TC terminal count output 13 RC ripple clock output (active LOW) 14 CP 15 D0 clock input (LOW-to-HIGH, edge-triggered) data input 16 VCC supply voltage Function Table Operating mode Input Output PL U/D CE CP Dn Qn L X X X L L L X X X H H count up H L l ↑ X count up count down hold (do nothing) H H l ↑ X count down H X H X X no change parallel load Note: H=HIGH voltage level; L=LOW voltage level; X=don’t care; ↑=LOW-to-HIGH clock l=LOW voltage level one set-up time prior to the LOW-to-HIGH clock transition. XBLWversion1.0 www.xinboleic.com Technical Support:4009682003 5 / 24 XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters Input Output Terminal count state U/D CE CP Q0 Q1 Q2 Q3 TC RC H H X H X X H L H L H X H X X H H H L L H X X H L H X L L L L L H H H X L L L L H H H L L L L L — Note: [1] H=HIGH voltage level; L=LOW voltage level; X=don’t care. [2] [3] =one LOW level output pulse. =TC goes LOW on a LOW-to-HIGH clock transition. XBLWversion1.0 www.xinboleic.com Technical Support:4009682003 6 / 24 XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters 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 VO= -0.5V to VCC+0.5V ±25 mA supply current ICC - mA IGND - -50 +50 ground current storage temperature - - mA Tstg - -65 +150 ℃ total power dissipation Ptot - - 500 mW Soldering temperatur e TL 245 260 DIP SOP/TSSOP 10s V ℃ Recommended Operating Conditions Parameter Symbol Conditions Min. Typ. Max. Unit 2.0 5.0 6.0 V - VCC V VCC 625 V ns/V 139 ns/V SN74HC190 supply voltage VCC input voltage VI output voltage VO input transition rise and fall rate VCC=2.0V Δt/ΔV VCC=4.5V - 1.67 VCC=6.0V - - 83 ns/V ambient temperature Tamb - -40 - +125 ℃ supply voltage VCC 4.5 5.0 5.5 V input voltage - VI 0 V VO - VCC output voltage - - 0 - 0 - - SN74HCT190 input transition rise and fall rate Δt/ΔV ambient temperature Tamb XBLWversion1.0 VCC=2.0V 0 VCC=4.5V VCC=6.0V - www.xinboleic.com - VCC V - 1.67 139 ns/V - - - ns/V -40 - +125 ℃ - Technical Support:4009682003 ns/V 7 / 24 XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters DC Characteristics 1 (Tamb=25℃, voltages are referenced to GND (ground=0V), unless otherwise specified.) Parameter Conditions Symbol Min. Typ. Max. Unit VCC=2.0V 1.5 1.2 V VCC=4.5V 3.15 2.4 - VCC=6.0V 4.2 3.2 VCC=2.0V - VCC=4.5V SN74HC190 HIGH-level input voltage LOW-level input voltage HIGH-level output voltage VIH VIL - V V 0.8 0.5 V - 2.1 1.35 V 1.8 V IO=-20uA; VCC=2.0V 1.9 2.8 2.0 V IO=-20uA; VCC=4.5V 4.4 4.5 - 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 - VCC=6.0V VOH VI = VIH or VIL IO=20uA; VCC=2.0V LOW-level output voltage IO=20uA; VCC=4.5V VOL IO=20uA; VCC=6.0V VI = VIH or VIL IO=4.0mA; VCC=4.5V IO=5.2mA; VCC=6.0V - - V V - V 0.1 V 0 V 0 0.1 V 0 0.1 V 0.15 0.26 V - 0.16 0.26 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 - 3.5 uA CI - 8.0 input - pF - capacitance SN74HCT190 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 IO=-20uA 4.4 4.5 V IO=-4.0mA 3.98 4.32 - - 0.1 V 0 V - 0.16 0.26 V VI = VIH or VIL; VCC=4.5V IO=20uA LOW-level output voltage VOL input leakage current 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 - - 360 uA input capacitance CI - - 3.5 - pF XBLWversion1.0 VI = VIH or VIL; VCC=4.5V www.xinboleic.com IO=4.0mA Technical Support:4009682003 8 / 24 XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters 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 VCC=4.5V - - V 3.15 4.2 - V VCC=6.0V - - - 0.5 V VCC=2.0V - V - - 1.35 V - 1.8 V IO=-20uA; VCC=2.0V 1.9 IO=-20uA; VCC=4.5V - - V 4.4 IO=-20uA; VCC=6.0V 5.9 - - IO=-4.0mA; VCC=4.5V 3.84 - IO=-5.2mA; VCC=6.0V - - V 5.34 - - 0.1 V IO=20uA; VCC=2.0V - V - - 0.1 V - - 0.1 V - - 0.33 V - - 0.33 V SN74HC190 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 IO=20uA; VCC=6.0V VI = VIH or VIL 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 - - 80 uA SN74HCT190 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 - LOW-level output voltage VOL VI = VIH or VIL; VCC=4.5V - - 0.1 V IO=20uA - 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 9 / 24 XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters 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 - - V VCC=4.5V 3.15 4.2 - V VCC=6.0V - V VCC=2.0V - - 0.5 V - - 1.35 V - 1.8 V IO=-20uA; VCC=2.0V 1.9 IO=-20uA; VCC=4.5V - - V 4.4 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 SN74HC190 HIGH-level input voltage LOW-level input voltage HIGH-level output voltage LOW-level output voltage VIH VCC=4.5V VIL VCC=6.0V VOH VI = VIH or VIL IO=20uA; VCC=4.5V VOL IO=20uA; VCC=6.0V VI = VIH or VIL 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 SN74HCT190 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 3.7 - LOW-level output voltage VOL VI = VIH or VIL; VCC=4.5V - V IO=4.0mA - 0.1 V IO=20uA - V input leakage current - 0.4 II VI=VCC or GND; VCC=5.5V - - ±1.0 uA supply current ICC VI=VCC or GND; IO=0A; VCC=5.5V - 160 uA additional supply current ΔICC - - 490 uA XBLWversion1.0 VI=VCC-2.1V; other inputs at VCC or GND; IO=0A; VCC=4.5V to 5.5V www.xinboleic.com Technical Support:4009682003 10 / 24 XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters AC Characteristics 1 (Tamb=25℃, GND=0V; tr=tf=6ns; CL=50pF, unless otherwise specified.) Parameter Symbol Conditions Min. Typ. Max. Unit SN74HC190 VCC=2.0V CP to Qn; see Figure 10 CP to TC; see Figure 10 — CP to RC; see Figure 11 — propagation delay tpd — CE to RC; see Figure 11 Dn to Qn; see Figure 12 PL to Qn; see Figure 13 — U/D to TC; see Figure 14 — — U/D to RC; see Figure 14 VCC=4.5V VCC=5.0V; CL=15pF VCC=6.0V VCC=2.0V VCC=4.5V VCC=6.0V VCC=2.0V VCC=4.5V VCC=6.0V VCC=2.0V VCC=4.5V VCC=6.0V VCC=2.0V VCC=4.5V VCC=6.0V VCC=2.0V VCC=4.5V VCC=6.0V VCC=2.0V VCC=4.5V tt see Figure 15 pulse width tW — PL; LOW; see Figure 15 recovery time trec set-up time tsu XBLWversion1.0 PL to CP; see Figure 15 — U/D to CP; www.xinboleic.com - 220 ns 44 ns 22 ns 21 37 83 255 ns 30 51 ns ns 24 43 ns 44 150 ns 16 30 ns 13 26 ns 33 130 ns 12 26 ns 10 22 ns 63 220 ns 23 44 ns 18 37 ns 63 220 ns 23 44 ns 18 37 ns 44 190 ns 16 38 ns 13 32 ns 210 ns 18 42 ns 14 36 ns 19 75 ns - 7 15 ns 155 6 13 ns VCC=2.0V 28 ns VCC=4.5V 31 10 - ns - ns - ns - ns - ns - ns - ns - ns - ns VCC=2.0V VCC=4.5V VCC=6.0V VCC=4.5V VCC=6.0V CP; HIGH or LOW; see Figure 10 - 72 26 50 VCC=6.0V VCC=2.0V transition time - - VCC=6.0V 26 8 VCC=2.0V 100 25 VCC=4.5V 20 9 VCC=6.0V 17 7 VCC=2.0V 35 8 VCC=4.5V 7 3 VCC=6.0V 6 2 VCC=2.0V 205 61 Technical Support:4009682003 11 / 24 XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters see Figure 16 — Dn to PL; see Figure 17 CE to CP; see Figure 16 — U/D to CP; see Figure 16 — hold time th Dn to PL; see Figure 17 CE to CP; see Figure 16 maximum frequency fmax CP; see Figure 10 VCC=4.5V 41 22 VCC=6.0V 35 18 VCC=2.0V 100 19 VCC=4.5V 20 7 VCC=6.0V 17 6 VCC=2.0V 140 39 VCC=4.5V 28 14 VCC=6.0V 24 11 VCC=2.0V 0 -44 VCC=4.5V 0 -16 VCC=6.0V 0 -13 VCC=2.0V 0 -14 VCC=4.5V 0 -5 VCC=6.0V 0 -4 VCC=2.0V 0 -19 VCC=4.5V 0 -7 VCC=6.0V 0 -6 VCC=2.0V 3.0 8.3 VCC=4.5V VCC=5.0V; CL=15pF 15 25 18 28 - - - ns - ns - ns - ns - ns - ns - ns - ns - ns - ns - ns - ns - ns - ns - ns - ns MHz - MHz MHz MHz 36 - pF 28 48 ns - 24 - ns VCC=4.5V - 34 58 ns VCC=4.5V - 20 35 ns CE to RC; see Figure 11 Dn to Qn; see Figure 12 VCC=4.5V - 18 33 ns VCC=4.5V - 24 44 ns PL to Qn; see Figure 13 VCC=4.5V - 29 49 ns VCC=4.5V - 24 45 ns - 26 45 ns - 7 15 ns 25 10 - ns PL; LOW; VCC=4.5V; see Figure 15 22 12 - ns PL to CP; VCC=4.5V; see Figure 15 7 1 - ns CPD VI=GND to VCC 30 ns - VCC=6.0V power dissipation capacitanc e - SN74HCT190 CP to Qn; see Figure 10 CP to TC; see Figure 10 — CP to RC; see Figure 11 propagation delay — tpd VCC=4.5V VCC=5.0V; CL=15pF — — — U/D to TC; see Figure 14 — transition time tt pulse width tW recovery time XBLWversion1.0 trec — U/D to RC; VCC=4.5V see Figure 14 VCC=4.5V; see Figure 15 CP; HIGH or LOW; VCC=4.5V see Figure 10 — www.xinboleic.com Technical Support:4009682003 12 / 24 XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters set-up time hold time U/D to CP; VCC=4.5V; see Figure 16 42 25 - ns Dn to PL; VCC=4.5V; see Figure 17 20 10 - ns CE to CP; VCC=4.5V;see Figure 16 31 18 - ns U/D to CP; VCC=4.5V; see Figure 16 0 -18 - ns 0 -6 - ns - ns - MHz tsu — Dn to PL; VCC=4.5V; see Figure 17 th CE to CP; VCC=4.5V;see Figure 16 maximum frequency fmax power dissipation capacitanc e CPD CP; see Figure 10 VCC=4.5V VCC=5.0V; CL=15pF VI=GND to VCC- 1.5V 0 -10 16 27 - 30 - 38 - MHz - pF Note: [1] tpd is the same as tPLH and tPHL. [2] tt is the sameastTHL and tTLH. [3] CPD isused to determine the dynamic power dissipation (PD in uW). PD=CPD ×VCC2 ×fi+Σ(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; Σ(CL×VCC2 ×fo)=sum of outputs. AC Characteristics 2 (Tamb=-40℃ to +85℃, GND=0V; tr=tf=6ns; CL=50pF, unless otherwise specified.) Parameter Symbol Conditions Min. Typ. Max. Unit VCC=2.0V - - 275 ns VCC=4.5V - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - SN74HC190 CP to Qn; see Figure 10 CP to TC; see Figure 10 — propagation delay CP to RC; see Figure 11 tpd — — CE to RC; see Figure 11 Dn to Qn; see Figure 12 PL to Qn; see Figure 13 XBLWversion1.0 www.xinboleic.com VCC=6.0V VCC=2.0V VCC=4.5V VCC=6.0V VCC=2.0V VCC=4.5V VCC=6.0V VCC=2.0V VCC=4.5V VCC=6.0V VCC=2.0V VCC=4.5V VCC=6.0V VCC=2.0V VCC=4.5V VCC=6.0V Technical Support:4009682003 55 ns 47 ns 320 ns 64 ns 54 ns 190 ns 38 ns 33 ns 165 ns 33 ns 28 ns 275 ns 55 ns 47 ns 275 ns 55 ns 47 ns 13 / 24 XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters — U/D to TC; see Figure 14 — — U/D to RC; see Figure 14 VCC=2.0V transition time tt pulse width tW — PL; LOW; see Figure 15 recovery time trec PL to CP; see Figure 15 — U/D to CP; see Figure 16 set-up time — tsu Dn to PL; see Figure 17 CE to CP; see Figure 16 — U/D to CP; see Figure 16 — hold time th Dn to PL; see Figure 17 CE to CP; see Figure 16 maximum frequency fmax CP; see Figure 10 propagation delay tpd — CP to RC; see Figure 11 XBLWversion1.0 www.xinboleic.com ns 265 ns 53 ns 45 ns 95 ns 19 ns - 16 ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - - - ns MHz - - - - MHz - - - - - - - - - - - - - VCC=2.0V 195 VCC=4.5V 39 VCC=6.0V 33 VCC=2.0V 125 VCC=4.5V 25 VCC=6.0V 21 VCC=2.0V 45 VCC=4.5V 9 VCC=6.0V 8 VCC=2.0V 255 VCC=4.5V 51 VCC=6.0V 43 VCC=2.0V 125 VCC=4.5V 25 VCC=6.0V 21 VCC=2.0V 175 VCC=4.5V 35 VCC=6.0V 30 VCC=2.0V 0 VCC=4.5V 0 VCC=6.0V 0 VCC=2.0V 0 VCC=4.5V 0 VCC=6.0V 0 VCC=2.0V 0 VCC=4.5V 0 VCC=6.0V 0 VCC=2.0V 2.4 VCC=4.5V 12 VCC=6.0V 14 VCC=6.0V VCC=2.0V VCC=4.5V VCC=6.0V VCC=4.5V SN74HCT190 CP to Qn; see Figure 10 CP to TC; see Figure 10 ns 41 - VCC=4.5V VCC=6.0V CP; HIGH or LOW; see Figure 10 ns 48 - VCC=2.0V see Figure 15 240 - MHz VCC=4.5V - - 60 ns VCC=4.5V - - 73 ns VCC=4.5V - - 44 ns Technical Support:4009682003 14 / 24 XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters — — CE to RC; see Figure 11 Dn to Qn; see Figure 12 VCC=4.5V - - 41 ns VCC=4.5V - - 55 ns PL to Qn; see Figure 13 VCC=4.5V - - 61 ns VCC=4.5V - - 56 ns - - 56 ns - - 19 ns 31 - - ns PL; LOW; VCC=4.5V; see Figure 15 28 - - ns PL to CP; VCC=4.5V; see Figure 15 9 - - ns U/D to CP; VCC=4.5V; see Figure 16 53 - - ns Dn to PL; VCC=4.5V; see Figure 17 25 - - ns CE to CP; VCC=4.5V;see Figure 16 39 - - ns U/D to CP; VCC=4.5V; see Figure 16 0 - - ns — U/D to TC; see Figure 14 — transition time tt pulse width tW recovery time set-up time hold time maximum frequency trec tsu — U/D to RC; VCC=4.5V see Figure 14 VCC=4.5V; see Figure 15 CP; HIGH or LOW; VCC=4.5V see Figure 10 — th Dn to PL; VCC=4.5V; see Figure 17 0 - - ns 0 - - ns fmax CE to CP; VCC=4.5V;see Figure 16 CP; VCC=4.5V see Figure 10 13 - - MHz Min. Typ. Max. Unit - - 330 ns - - 66 ns - - - - - - - - - - - - - - - - - - - - - - - - Note: [1] tpd is the same as tPLH and tPHL. [2] tt is the sameastTHL and tTLH. AC Characteristics 3 (Tamb=-40℃ to +125℃, GND=0V; tr=tf=6ns; CL=50pF, unless otherwise specified.) Parameter Conditions Symbol SN74HC190 CP to Qn; see Figure 10 CP to TC; see Figure 10 propagation delay tpd — CP to RC; see Figure 11 — — CE to RC; see Figure 11 Dn to Qn; see Figure 12 XBLWversion1.0 www.xinboleic.com VCC=2.0V VCC=4.5V VCC=6.0V VCC=2.0V VCC=4.5V VCC=6.0V VCC=2.0V VCC=4.5V VCC=6.0V VCC=2.0V VCC=4.5V VCC=6.0V VCC=2.0V VCC=4.5V Technical Support:4009682003 56 ns 384 ns 77 ns 65 ns 228 ns 46 ns 40 ns 198 ns 40 ns 34 ns 330 ns 66 ns 15 / 24 XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters VCC=6.0V VCC=2.0V PL to Qn; see Figure 13 VCC=4.5V VCC=6.0V — U/D to TC; see Figure 14 — — U/D to RC; see Figure 14 VCC=2.0V VCC=4.5V VCC=6.0V VCC=2.0V VCC=4.5V VCC=6.0V VCC=2.0V transition time pulse width tt see Figure 15 CP; HIGH or LOW; see Figure 10 tW — PL; LOW; see Figure 15 recovery time trec PL to CP; see Figure 15 — U/D to CP; see Figure 16 set-up time — tsu Dn to PL; see Figure 17 CE to CP; see Figure 16 — U/D to CP; see Figure 16 — hold time th Dn to PL; see Figure 17 CE to CP; see Figure 16 maximum frequency fmax CP; see Figure 10 - - - - - - - - - - - - - - - - - - - - XBLWversion1.0 tpd CP to Qn; www.xinboleic.com ns ns 66 ns 56 ns 288 ns 58 ns 49 ns 318 ns 64 ns 54 ns 114 ns 23 ns - - VCC=4.5V - - VCC=6.0V - 19 ns VCC=2.0V 234 47 - - ns VCC=4.5V - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - ns - - - - ns MHz - - - - MHz - 72 ns VCC=6.0V 40 VCC=2.0V 150 VCC=4.5V 30 VCC=6.0V 25 VCC=2.0V 54 VCC=4.5V 11 VCC=6.0V 10 VCC=2.0V 306 VCC=4.5V 61 VCC=6.0V 52 VCC=2.0V 150 VCC=4.5V 30 VCC=6.0V 25 VCC=2.0V 210 VCC=4.5V 42 VCC=6.0V 36 VCC=2.0V 0 VCC=4.5V 0 VCC=6.0V 0 VCC=2.0V 0 VCC=4.5V 0 VCC=6.0V 0 VCC=2.0V 0 VCC=4.5V 0 VCC=6.0V 0 VCC=2.0V 2 VCC=4.5V 10 VCC=6.0V 12 SN74HCT190 propagation 56 330 VCC=4.5V Technical Support:4009682003 - MHz 16 / 24 XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters delay see Figure 10 CP to TC; see Figure 10 VCC=4.5V - - 88 ns VCC=4.5V - - 53 ns CE to RC; see Figure 11 Dn to Qn; see Figure 12 VCC=4.5V - - 49 ns VCC=4.5V - - 66 ns PL to Qn; see Figure 13 VCC=4.5V - - 73 ns VCC=4.5V - - 67 ns U/D to RC; VCC=4.5V see Figure 14 VCC=4.5V; see Figure 15 CP; HIGH or LOW; VCC=4.5V see Figure 10 - - 67 ns - - 23 ns 37 - - ns PL; LOW; VCC=4.5V; see Figure 15 34 - - ns PL to CP; VCC=4.5V; see Figure 15 11 - - ns U/D to CP; VCC=4.5V; see Figure 16 64 - - ns Dn to PL; VCC=4.5V; see Figure 17 30 - - ns CE to CP; VCC=4.5V;see Figure 16 47 - - ns U/D to CP; VCC=4.5V; see Figure 16 0 - - ns Dn to PL; VCC=4.5V; see Figure 17 0 - - ns CE to CP; VCC=4.5V;see Figure 16 CP; VCC=4.5V see Figure 10 0 - - ns 11 - - MHz — CP to RC; see Figure 11 — — — U/D to TC; see Figure 14 — transition time tt pulse width tW recovery time set-up time trec tsu — — hold time maximum frequency th fmax Note: [1] tpd is the same as tPLH and tPHL. [2] tt is the sameastTHL and tTLH. XBLWversion1.0 www.xinboleic.com Technical Support:4009682003 17 / 24 XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters Testing Circuit AC Testing Circuit Figure 9. 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 10. The clock input (CP) to outputs (Qn, TC) propagation delays, clock pulse width and maximum clock frequency Figure 11. The clock and count enable inputs (CP, CE) to ripple clock output (RC) propagation delays XBLWversion1.0 www.xinboleic.com Technical Support:4009682003 18 / 24 XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters Figure 12. The input (Dn) to output (Qn) propagation delays Figure 13. The parallel load input (PL) to output (Qn) propagation delays Figure 14. The up/down count input (U/D) to terminal count and ripple clock output (TC, RC) propagation delays Figure 15. The parallel load input (PL) to clock (CP) recovery times, parallel load pulse width and output (Qn) transition times XBLWversion1.0 www.xinboleic.com Technical Support:4009682003 19 / 24 XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters Figure 16. The count enable and up/down count inputs (CE, U/D) to clock input (CP) set-up and hold times Figure 17. Waveforms showing the set-up and hold times from the parallel load input (PL) to the data input (Dn) Measurement Points Type Input Output SN74HC190 VM VM 0.5×VCC 0.5×VCC SN74HCT190 1.3V 1.3V Test Data Type Input S1 position Load VI CL RL tPLH , tPHL SN74HC190 t r ,t f VCC 6ns 15pF, 50pF 1kΩ open SN74HCT190 3V 6ns 15pF, 50pF 1kΩ open XBLWversion1.0 www.xinboleic.com Technical Support:4009682003 20 / 24 XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters Package Information DIP16 XBLWversion1.0 www.xinboleic.com Technical Support:4009682003 21 / 24 XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters SOP16 XBLWversion1.0 www.xinboleic.com Technical Support:4009682003 22 / 24 XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters TSSOP16 XBLWversion1.0 www.xinboleic.com Technical Support:4009682003 23 / 24 XBLW SN74HC/HCT190 Asynchronously Presettable Up/Down BCD Decade Counters 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 24 / 24