HD74HC590 8-bit Binary Counter/Register (with 3-state outputs) Description This device each contains an 8-bit binary counter that feeds an 8-bit storage register. The storage register has parallel outputs. Separate clocks are provided for both the binary counter and storage register. The binary counter features a direct clear input CCLR and a count enable input C CKEN. For cascading a ripple carry output R CO is provided. Expansion is easily accomplished by tying R CO of the first stage to CCKEN of the second stage, etc. Both the counter and register clocks are positive-edge triggered. If the user wishes to connect both clocks together, the counter state will always be one count ahead of the register, Internal circuitry prevents clocking from the clock enable. Features • • • • • High Speed Operation: tpd (RCK to Q) = 18.5 ns typ (CL = 50 pF) High Output Current: Fanout of 15 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) HD74HC590 Function Table Inputs G RCK CCLR CCKEN CCK Function H X X X X Q output disabled L X X X X Q output enabled X X X X Contents of counter stored to register X X X X No change in register X Counter clear X X L X X X H L Count up X X H L No count X X H H X No count RCO = QA’•QB’•QC’•QD’•QE’•QF’•QG’•QH’• (CCKEN) (QA’ to QH’: Output of Internal Counter) Pin Arrangement QB 1 16 VCC QC 2 15 QA QD 3 14 C QE 4 13 RCK QF 5 12 CCKEN QG 6 11 CCK QH 7 10 CCLR 9 RCO GND 8 (Top view) 2 HD74HC590 Absolute Maximum Ratings Item Symbol Rating Unit Supply voltage range VCC –0.5 to +7.0 V Input voltage VIN –0.5 to VCC + 0.5 V Output voltage VOUT –0.5 to VCC + 0.5 V Output current I OUT ±35 mA DC current drain per VCC, GND I CC, I GND ±75 mA DC input diode current I IK ±20 mA DC output diode current I OK ±20 mA Power Dissipation per package PT 500 mW Storage temperature Tstg –65 to +150 °C 3 HD74HC590 Logic Diagram T Q CCK CCLR CCK REC Out RCK RCK G QA T Q CCK CCLR CCK REC Out QB T Q CCK CCLR CCK REC Out T Q CCK CCLR CCK REC Out T Q CCK CCLR CCK REC Out T Q CCK CCLR CCK REC Out T Q CCK CCLR CCK REC Out T REC Out Q CCK CCLR CCK CCKEN CCK CCLR RCK G 4 RCK RCK RCK RCK RCK RCK RCK RCK RCK RCK RCK RCK RCK RCK G QC G QD G QE G QF G QG G QH G RCO HD74HC590 DC Characteristics Ta = –40 to +85°C Ta = 25°C Item Symbol VCC (V) Min Typ Max Min Max Unit Input voltage VIH 2.0 1.5 — — 1.5 — V 4.5 3.15 — — 3.15 — 6.0 4.2 — — 4.2 — 2.0 — — 0.5 — 0.5 4.5 — — 1.35 — 1.35 6.0 — — 1.8 — 1.8 2.0 1.9 2.0 — 1.9 — 4.5 4.4 4.5 — 4.4 — 6.0 5.9 6.0 — 5.9 — 4.5 4.18 — — 4.13 — I OH = –6 mA 6.0 5.68 — — 5.63 — I OH = –7.8 mA 2.0 — 0.0 0.1 — 0.1 4.5 — 0.0 0.1 — 0.1 6.0 — 0.0 0.1 — 0.1 4.5 — — 0.26 — 0.33 I OL = 6 mA 6.0 — — 0.26 — 0.33 I OL = 7.8 mA 2.0 1.9 2.0 — 1.9 — 4.5 4.4 4.5 — 4.4 — 6.0 5.9 6.0 — 5.9 — 4.5 4.18 — — 4.13 — I OH = –4 mA 6.0 5.68 — — 5.63 — I OH = –5.2 mA 2.0 — 0.0 0.1 — 0.1 4.5 — 0.0 0.1 — 0.1 6.0 — 0.0 0.1 — 0.1 4.5 — — 0.26 — 0.33 I OL = 4 mA 6.0 — — 0.26 — 0.33 I OL = 5.2 mA VIL Output voltage VOH VOL Output voltage VOH VOL Test Conditions V V QA to QH I OH = –20 µA Vin = VIH or VIL V QA to QH I OL = 20 µA Vin = VIH or VIL V RCO I OH = –20 µA Vin = VIH or VIL V RCO I OL = 20 µA Vin = VIH or VIL Off-state output current I OZ 6.0 — — ±0.5 — ±5.0 µA Vin = VIH or VIL, Vout = VCC or GND Input current Iin 6.0 — — ±0.1 — ±1.0 µA Vin = VCC or GND Quiescent supply current I CC 6.0 — — 4.0 40 µA Vin = VCC or GND, Iout = 0 µA — 5 HD74HC590 AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns) Ta = –40 to +85°C Ta = 25°C Item Symbol VCC (V) Min Typ Max Min Max Unit Maximum clock f max 2.0 — — 5 — 4 MHz 4.5 — — 25 — 20 6.0 — — 29 — 24 Propagation delay t PLH 2.0 — — 200 — 250 time 4.5 — 18 40 — 50 6.0 — — 34 — 43 2.0 — — 250 — 315 4.5 — 17 50 — 63 6.0 — — 43 — 54 t PLH 2.0 — — 200 — 250 t PHL 4.5 — 18 40 — 50 6.0 — — 34 — 43 frequency t PHL t PLH Output enable t ZL 2.0 — — 150 — 190 time t ZH 4.5 — 16 30 — 39 6.0 — — 26 — 33 Output disable t LZ 2.0 — — 150 — 190 time t HZ 4.5 — 17 30 — 38 6.0 — — 26 — 33 2.0 80 — — 100 — 4.5 16 6 — 20 — 6.0 14 — — 17 — 2.0 5 — — 5 — 4.5 5 — — 5 — 6.0 5 — — 5 — 2.0 100 — — 125 — 4.5 20 –3 — 25 — 6.0 17 — — 21 — 2.0 200 — — 250 — 4.5 40 10 — 50 — 6.0 34 — — 43 — Pulse width Removal time Setup time 6 tw t rem t su Test Conditions ns CCK to RCO ns CCLR to RCO ns RCK to Q ns ns ns ns CCLR to CCK ns CCKEN to CCK ns CCK to RCK HD74HC590 AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns) (cont) Ta = –40 to +85°C Ta = 25°C Item Symbol VCC (V) Min Typ Max Min Max Unit Test Conditions Hold time th 2.0 5 — — 5 — ns CCKEN to CCK 4.5 5 — — 5 — 6.0 5 — — 5 — Output rise/fall t TLH 2.0 — — 60 — 75 time t THL 4.5 — 4 12 — 15 6.0 — — 10 — 13 t TLH 2.0 — — 75 — 95 t THL 4.5 — 5 15 — 19 6.0 — — 13 — 16 — — 5 10 — 10 Input capacitance Cin CCK to RCK ns Q ns RCO pF 7 Unit: mm 19.20 20.00 Max 1 7.40 Max 9 6.30 16 8 1.3 0.48 ± 0.10 2.54 Min 5.06 Max 2.54 ± 0.25 0.51 Min 1.11 Max 7.62 + 0.13 0.25 – 0.05 0° – 15° Hitachi Code JEDEC EIAJ Weight (reference value) DP-16 Conforms Conforms 1.07 g Unit: mm 10.06 10.5 Max 9 1 8 1.27 *0.42 ± 0.08 0.40 ± 0.06 0.10 ± 0.10 0.80 Max *0.22 ± 0.05 0.20 ± 0.04 2.20 Max 5.5 16 0.20 7.80 +– 0.30 1.15 0° – 8° 0.70 ± 0.20 0.15 0.12 M *Dimension including the plating thickness Base material dimension Hitachi Code JEDEC EIAJ Weight (reference value) FP-16DA — Conforms 0.24 g Unit: mm 9.9 10.3 Max 9 1 8 0.635 Max *0.42 ± 0.08 0.40 ± 0.06 0.15 *0.22 ± 0.03 0.20 ± 0.03 1.27 0.11 0.14 +– 0.04 1.75 Max 3.95 16 0.10 6.10 +– 0.30 1.08 0° – 8° 0.67 0.60 +– 0.20 0.25 M *Dimension including the plating thickness Base material dimension Hitachi Code JEDEC EIAJ Weight (reference value) FP-16DN Conforms Conforms 0.15 g Cautions 1. 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