SN54390,SN54LS390,SN54393SN54LS393 sN74390,S№74LS390,SN74393,SN74LS393 DUAL 4-BIT DECADE AND BINARY COUNTERS SDLS107-OCTOBER 1976- REVISED MA PARAMETER MEASUREMENT INFORMATION 点点 E8a9N求H≥Niov2v z∝ouu≥3udH og3o=99 /(非 esm9aa●aEiuHoz TEXAS INSTRUMENTS POST OFFICE BOX 655303 0 DALLAS. TEXAS 75265
SN54390, SN54LS390, SN54393, SN54LS393 SN74390, SN74LS390, SN74393, SN74LS393 DUAL 4-BIT DECADE AND BINARY COUNTERS SDLS107 – OCTOBER 1976 – REVISED MARCH 1988 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54390,SN54LS390,SN54393,SN54LS393 SN74390,SN74LS390,SN74393,SN74LS393 DUAL 4-BIT DECADE AND BINARY COUNTERS absolute maximum ratings over operating free air temperature range (unless otherwise noted Supply voltage, Vcc (see Note 1) 7V Clear input voltage 7 V ny A or B clock input voltage 5.5V Operating free- air temperature range: SN54LS390, SN54LS393 55cto125°c SN74LS390, SN74LS393 o°cto70°c Storage temperature range 65C to 150"C NOTE 1: Voltage values are with respect to network ground terminal. recommended operating conditions SN54LS390 SN74LS390 SN54LS393 UNIT MINNOM MAXMIN NOMMAX 55554755525 High-level output t, OH 400 TA input 25 Count frequency, count 1250 25 MHz A input high or low Pulse width, tw Input high or low 20 20 Clear inactive-state setup time Operating free-air temperature,T electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) SN54LS' PARAMETER TEST CONDITIONSt MIN TYP+ MAX MIN TYP+ MAX UNIT VIH High-level input voltage I VIL Lowlevel input voltage Vcc.MIN,I1.-18mA 15 1.5 VCc- MIN, VIH-2V VOH High-level output voltage 2.5 2.734 VILmax, IOH - -400 HA VoL Low-level output voltag IH2V, 025040 VIL=0.8V, 03505 Input current at maximum input voltage AVCC=MAX B v 04 IH High-evel input current [input A Vcc=MAX,V1-27V out B IIL Low-level input current Input AlVcc-MAX, VI04V -1.6mA 24 24 os Short-circuit output current s E MAX LS390 Icc Supply current See Note 2 Ls393 as MIN or MAX, use the appropriate value specified under recommended operating conditions. 3 Not more than one output f The OA outputs of the LS390 are tested at lot- MAX plus the limit value for lL for the clock B input. This permits driving the clock B input while maintaining full fan-out capability NOTE 2: Icc is measured with all outputs open, both clear inputs grounded following momentary connection to 4.5V, and all other inputs XAS INSTRUMENTS POST OFFICE BOX 655303. DALLAS. TEXAS 75265
SN54390, SN54LS390, SN54393, SN54LS393 SN74390, SN74LS390, SN74393, SN74LS393 DUAL 4-BIT DECADE AND BINARY COUNTERS SDLS107 – OCTOBER 1976 – REVISED MARCH 1988 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7
SN54390,SN54LS390,SN54393SN54LS393 sN74390,S№74LS390,SN74393,SN74LS393 DUAL 4-BIT DECADE AND BINARY COUNTERS SDLS107-OCTOBER 1976- REVISED MARCH 1988 switching characteristics, VCc =5 V, TA= 25'C FROM Ls390 Ls393 PARAMETER NPUT TEST CONDITIONS OUTPUT MINTYP MAXMINTYPMAX 2535 12.5 tPLH 1220 1320 13 3760 4060 Qp of'LS393 RI=2 ks2 叫叫叫 See Note 4 and Figure 2 1421 L 1321 NOTE 4: Load circuits and voltage waveforms are shown in Section 1 TEXAS INSTRUMENTS POST OFFICE BOX 655303 0 DALLAS. TEXAS 75265
SN54390, SN54LS390, SN54393, SN54LS393 SN74390, SN74LS390, SN74393, SN74LS393 DUAL 4-BIT DECADE AND BINARY COUNTERS SDLS107 – OCTOBER 1976 – REVISED MARCH 1988 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54390,SN54LS390,SN54393,SN54LS393 SN74390,SN74LS390,SN74393,SN74LS393 DUAL 4-BIT DECADE AND BINARY COUNTERS SDLS107-OCTOBER 1976 ED MARCH 1988 PARAMETER MEASUREMENT INFORMATION 99 §、§、§5 8v≥3xz-iov 5ue399+gc2 3 菲“ XAS INSTRUMENTS POST OFFICE BOX 655303. DALLAS. TEXAS 75265
SN54390, SN54LS390, SN54393, SN54LS393 SN74390, SN74LS390, SN74393, SN74LS393 DUAL 4-BIT DECADE AND BINARY COUNTERS SDLS107 – OCTOBER 1976 – REVISED MARCH 1988 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 9