HD74LV2G126A Dual Bus Buffer with 3–state Output ADE-205-348 (Z) 1st. Edition May 2000 Description The HD74LV2G126A has dual bus buffer with 3–state output in a 8 pin package. Output is disabled when the associated output enable (OE) input is low. To ensure the high impedance state during power up or power down, OE should be connected to VCC through a pull-down resistor; the minimum value of the resistor is determined by the current souring capability of the driver. Low voltage and high speed operation is suitable for the battery powered products (e.g., notebook computers), and the low power consumption extends the battery life. Features • The basic gate function is lined up as hitachi uni logic series. • Supplied on emboss taping for high speed automatic mounting. • Electrical characteristics equivalent to the HD74LV126A Supply voltage range : 1.65 to 5.5 V Operating temperature range : –40 to +85°C • All inputs VIH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V) All outputs VO (Max.) = 5.5 V (@VCC = 0 V) • Output current ±6 mA (@VCC = 3.0 V to 3.6 V), ±12 mA (@VCC = 4.5 V to 5.5 V) • All the logical input has hysteresis voltage for the slow transition. HD74LV2G126A Outline and Article Indication • HD74LV2G126A Index band Lot No. Y M W L 2 6 US–8 Type No. Function Table Inputs Output Y OE A H H H H L L L X Z H : High level L : Low level X : Immaterial Z : High impedance 2 Y : Year code (the last digit of year) M : Month code W : Week code HD74LV2G126A Pin Arrangement G1 1 8 VCC A1 2 7 G2 Y2 3 6 Y1 GND 4 5 A2 (Top view) Absolute Maximum Ratings Item Symbol Ratings Unit Supply voltage VCC –0.5 to 7.0 V Input voltage VIN –0.5 to 7.0 V Output voltage VOUT –0.5 to VCC + 0.5 V –0.5 to 7.0 Test Conditions Output : H or L VCC : OFF or Output : Z Input diode current I IK –20 mA Output diode current I OK ±50 mA Output current I OUT ±25 mA VCC, GND current I CC or IGND ±50 mA Power dissipation PT 200 mW Storage temperature Tstg –65 to 150 °C 3 HD74LV2G126A Recommended Operating Conditions Item Symbol Ratings Unit Supply voltage VCC 1.65 to 5.5 V Input voltage VIN 0 to 5.5 V Output voltage VOUT 0 to V CC V Operating temperature Topr –40 to +85 °C Input rise / fall time t r, t f 0 to 300 (VCC = 1.65 to 1.95 V) ns 0 to 200 (VCC = 2.3 to 2.7 V) 0 to 100 (VCC = 3.0 to 3.6 V) 0 to 20 (VCC = 4.5 to 5.5 V) 4 HD74LV2G126A Electrical Characteristic • Ta = –40 to 85°C Item Symbol VCC (V) * Input voltage VIH VIL Hysteresis voltage VH Output voltage VOH VOL Min Typ 1.65 to 1.95 VCC×0.75 — Max Unit — V Test condition 2.3 to 2.7 VCC×0.7 — — 3.0 to 3.6 VCC×0.7 — — 4.5 to 5.5 VCC×0.7 — — 1.65 to 1.95 — — VCC×0.25 2.3 to 2.7 — — VCC×0.3 3.0 to 3.6 — — VCC×0.3 4.5 to 5.5 — — VCC×0.3 1.8 — 0.25 — 2.5 — 0.30 — 3.3 — 0.35 — 5.0 — 0.45 — Min to Max VCC–0.1 — — 1.65 1.4 — — I OH = –1 mA 2.3 2.0 — — I OH = –2 mA 3.0 2.48 — — I OH = –6 mA 4.5 3.8 — — I OH = –12 mA Min to Max — — 0.1 I OL = 50 µA 1.65 — — 0.3 I OL = 1 mA 2.3 — — 0.4 I OL = 2 mA 3.0 — — 0.44 I OL = 6 mA 4.5 — — 0.55 I OL = 12 mA V VT+ – VT– V I OH = –50 µA Input current I IN 0 to 5.5 — — ±1 µA VIN = 5.5 V or GND Off state output current I OZ 5.5 — — ±5 µA VO = VCC or GND Quiescent supply current I CC 5.5 — — 10 µA VIN = VCC or GND, IO = 0 Output leakage current I OFF 0 — — 5 µA VO = 5.5 V 3.3 — 3.0 — pF VIN = VCC or GND Input capacitance CIN Note: For conditions shown as Min or Max, use the appropriate values under recommended operating conditions. 5 HD74LV2G126A Switching Characteristics • VCC = 1.8 ± 0.15 V Item Symbol Ta = 25°C Ta = –40 to 85°C Min Typ Max Min Max Propagation t PLH — 13.5 23.5 1.0 26.0 delay time t PHL — 19.0 33.0 1.0 36.0 Enable time t ZH — 13.7 26.5 1.0 29.0 t ZL — 20.5 36.0 1.0 38.0 t HZ — 8.3 20.0 1.0 22.5 t LZ — 13.0 29.5 1.0 32.0 Disable time Unit Test ns FROM TO Conditions (Input) (Output) CL = 15 pF A Y OE Y OE Y FROM TO CL = 50 pF ns CL = 15 pF CL = 50 pF ns CL = 15 pF CL = 50 pF • VCC = 2.5 ± 0.2 V Item Symbol Ta = 25°C Ta = –40 to 85°C Min Typ Max Min Max Propagation t PLH — 7.1 13.0 1.0 15.5 delay time t PHL — 9.2 16.5 1.0 18.5 Enable time t ZH — 7.4 13.0 1.0 15.5 t ZL — 9.5 16.5 1.0 18.5 t HZ — 5.7 14.7 1.0 17.0 t LZ — 8.1 18.2 1.0 20.5 Disable time Unit Test ns Conditions (Input) (Output) CL = 15 pF A Y OE Y OE Y FROM TO CL = 50 pF ns CL = 15 pF CL = 50 pF ns CL = 15 pF CL = 50 pF • VCC = 3.3 ± 0.3 V Item Symbol Ta = 25°C Ta = –40 to 85°C Min Typ Max Min Max Propagation t PLH — 5.0 8.0 1.0 9.5 delay time t PHL — 6.4 11.5 1.0 13.0 Enable time t ZH — 5.1 8.0 1.0 9.5 t ZL — 6.6 11.5 1.0 13.0 t HZ — 4.4 9.7 1.0 11.5 t LZ — 6.1 13.2 1.0 15.0 Disable time 6 Unit Test ns Conditions (Input) (Output) CL = 15 pF A Y OE Y OE Y CL = 50 pF ns CL = 15 pF CL = 50 pF ns CL = 15 pF CL = 50 pF HD74LV2G126A Switching Characteristics (cont) • VCC = 5.0 ± 0.5 V Item Symbol Ta = 25°C Ta = –40 to 85°C Min Typ Max Min Max Propagation t PLH — 3.5 5.5 1.0 6.5 delay time t PHL — 4.6 7.5 1.0 8.5 Enable time t ZH — 3.6 5.1 1.0 6.0 t ZL — 4.6 7.1 1.0 8.0 t HZ — 3.3 6.8 1.0 8.0 t LZ — 4.3 8.8 1.0 10.0 Disable time Unit Test ns FROM TO Conditions (Input) (Output) CL = 15 pF A Y OE Y OE Y CL = 50 pF ns CL = 15 pF CL = 50 pF ns CL = 15 pF CL = 50 pF Operating Characteristics • CL = 50 pF Item Power dissipation capacitance Symbol CPD VCC (V) Ta = 25°C Min Typ Max 3.3 — 10.5 — 5.0 — 11.5 — Unit Test Conditions pF f = 10 MHz 7 HD74LV2G126A Test Circuit VCC Pulse Generator Z OUT = 50 Ω See Function Table Input VCC Output 1k Ω S1 CL = 15 or 50 pF TEST t PLH / t PHL t ZH/ t HZ t ZL / t LZ Note: 1. C L includes probe and jig capacitance. 8 OPEN See under table GND *1 S1 OPEN GND VCC HD74LV2G126A • Waveforms – 1 tf tr 90 % 50% Input A VCC 90 % 50% 10 % 10 % GND t PHL t PLH VOH Output Y 50% 50% VOL • Waveforms – 2 tf tr 90 % 50% Input OE VCC 90 % 50% 10 % 10 % t LZ t ZL GND VCC 50% Waveform – A t ZH Waveform – B VOL + 0.3 V t HZ 50% VOH – 0.3 V VOL VOH GND Notes: 1. tr ≤ 3 ns, tf ≤ 3 ns 2. Input waveform : PRR ≤ 1 MHz, duty cycle 50% 3. Waveform – A is for an output with internal conditions such that the output is low except when disabled by the output control. 4. Waveform – B is for an output with internal conditions such that the output is high except when disabled by the output control. 9 HD74LV2G126A Package Dimensions Unit : mm (0.4) 1.50 0.5 0.5 0.5 + 0.05 0.13 − 0.03 3.1 ± 0.1 (0.4) 2.3 ± 0.1 0 − 0.1 + 0.05 8 − 0.2 − 0.04 0.7 ± 0.1 (0.17) 2.0 ± 0.1 10 Hitachi Code JEDEC EIAJ Mass (reference value) US-8 SSOP-8 HD74LV2G126A Cautions 1. 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