HD151245 Octal Bus Transceivers With 3 State Outputs ADE-205-597 (Z) 1st. Edition Dec. 2000 Description The HD151245 featurs high speed operation and high drivability equivalent to the HD74LS245, which realize ultra low power dissipation. This device consists of eight bus transceivers with three state outputs in a 20 pin package. The device transmit data from the A bus to the B bus when the direction control (DIR) input is at the high level,and from the B bus to the A bus when the DIR input is at the low level, the enable input (G) can be used to disable the device so that the buses are effectively isolated. The power up/down protection provides the outputs in high impedance state when Vcc is low regardless of enable input. Features • High speed: • High output current: • • • • tpd = 10 ns typ. IOH = –15 mA IOL = 24 mA TTL Compatible Input/Output Wide operating temperature range: Ta = –40 to +85°C High impedance state for both Input/Output in power off condition. Power Up/Down Protection HD151245 Pin Arrangement 20 VCC DIR 1 A1 2 19 G A2 3 18 B1 A3 4 17 B2 A4 5 16 B3 A5 6 15 B4 A6 7 14 B5 A7 8 13 B6 A8 9 12 B7 GND 10 11 B8 (Top view) Function Table Inputs G DIR Operation L L B data to A bus L H A data to B bus H X Z H L X Z 2 : : : : High level Low level Irrelevant High impedance HD151245 Absolute Maximum Ratings (Ta = 25°C) Item Symbol Rating Unit Supply Voltage VCC –0.5 to +7.0 V Input Voltage(G, DiR) VIN –0.5 to +7.0 V Input Voltage(A, B) VIN –0.5 to +5.5 V Output Voltage VOUT –0.5 to +5.5 V Power Dissipation PT 500 mW Storage Temperature Range Tstg –65 to +150 °C Note: 1. The absolute maximum ratings are values which must not individually be exceeded, and furthermore, no two of which may be realized at the same time. Recommended Operating Conditions Item Symbol Min Typ Max Unit Supply Voltage VCC 4.5 5.0 5.5 V Output Current I OH — — –15 mA I OL — — 24 mA Topr –40 25 85 °C t r, t f 0 — 250 ns/V Operating Temperature 1 Input Rise and Fall Time* Note: 1. This item guarantees maximum limit when one input switches. Waveform: Refer to test circuit of switching characteristics. 3 HD151245 DC Electrical Characteristics (Ta = –40°C to +85°C) Item Symbol Input Voltage Output Voltage Min Max Unit VIH 2.0 — V VIL — 0.8 4.5 2.4 — 4.5 2.0 — 4.5 — 0.4 4.5 — 0.5 I OZ 5.5 — ±5.0 I OZ(off) 0 — ±5.0 I IN 5.5 — ±1.0 VOH VOL Off State Output Current Input Current VCC V V I OL = 12 mA, VIN = VCC – 2.1 V or 0.5 V I OL = 24 mA, VIN = VCC – 2.1 V or 0.5 V µA VOUT = VCC or GND VOUT = 5.5 V µA I IN(off) 0 — ±1.0 Output Short current* I OS 5.5 –40 –225 mA Power Supply Current I CC 5.5 — 0.5 5.5 — 1.5 I CCT* I OH = –3 mA, VIN = VCC – 2.1 V or 0.5 V I OH = –15 mA, VIN = VCC – 2.1 V or 0.5 V 1 2 Conditions VIN = VCC or GND VIN = 5.5 V mA I OUT = 0 µA, VIN = VCC or 0.5 V VIN = VCC – 2.1 V or 0.5 V Notes: 1. Not more than one output should be shorted at a time and duration of the short circuit should not exceed one second. 2. The values show the increase of Icc perpin when TTL level input is applied. Switching Characteristics (CL = 50 pF) Ta = 25°C VCC = 5 V Item Min Max Min Max Unit Conditions Propagation Delay Time t PLH 3.0 15.0 3.0 18.0 ns See Next Page t PHL 3.0 15.0 3.0 18.0 t TLH 0.0 10.0 0.0 10.0 ns See Next Page t THL 0.0 10.0 0.0 10.0 t ZH 3.0 25.0 3.0 30.0 ns See Next Page t ZL 3.0 25.0 3.0 30.0 t HZ 3.0 25.0 3.0 30.0 ns See Next Page t LZ 3.0 25.0 3.0 30.0 Input Capacitance CIN — 5 (Typ) — — pF VIN = VCC or GND Input/Output Capacitance CI/O — 12 (Typ) — — pF VO = VCC or GND Transion Time Output Enable Time Output Disable Time 4 Symbol Ta = –40°C to 85°C VCC = 5 V ± 10% HD151245 Switching Time Test Method Test Circuit VCC VCC Input Pulse Generator Zout = 50 Ω See Function Table G RL = 1k Ω A1 Output S1 B1 CL = 50 pF S2 RL = 1k Ω DiR Notes: 1. 2. 3. CL includes probe and jig capacitance. Pairs A2-B2 through A8-B8 have load circuits similar at the above S1 is an input-output cutover switch Waveform-1 tf tr 90% Input 10% 3.0 V 90% 1.3 V 1.3 V 10% 0V t PHL t PLH S1 : OPEN 90% Output S1 : OPEN 1.3 V 10% t TLH 90% 1.3 V 10% VOH VOL t THL 5 HD151245 Waveform-2 tf G tr 90% 1.3 V 10% 10% t ZL Waveform – A 3.0 V 90% 1.3 V 0V t LZ S1 : VCC S1 : VCC 1.3 V t ZH Waveform – B S1 : GND 10% t HZ VOL 90% VOH 1.3 V S1 : GND Notes: 1. 2. 3. 4. 6 VCC 0V t r = 6.0 ns, tf = 6.0 ns Input Waveform: PRR = 1 MHz, duty cycle 50% Inputs for waveform A should be set to apply outputs at low level when enabled by output control. Inputs for waveform B should be set to apply outputs at high level when enabled by output control. HD151245 Package Dimensions Unit: mm 24.50 25.40 Max 1 7.00 Max 11 6.30 20 10 1.30 2.54 ± 0.25 0.48 ± 0.10 0.51 Min 1.27 Max 7.62 2.54 Min 5.08 Max 0.89 + 0.11 0.25 – 0.05 0° – 15° Hitachi Code JEDEC EIAJ Mass (reference value) DP-20N — Conforms 1.26 g Unit: mm 12.6 13 Max 11 1 10 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 20 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 Mass (reference value) FP-20DA — Conforms 0.31 g 7 HD151245 Cautions 1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent, copyright, trademark, or other intellectual property rights for information contained in this document. Hitachi bears no responsibility for problems that may arise with third party’s rights, including intellectual property rights, in connection with use of the information contained in this document. 2. Products and product specifications may be subject to change without notice. Confirm that you have received the latest product standards or specifications before final design, purchase or use. 3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However, contact Hitachi’s sales office before using the product in an application that demands especially high quality and reliability or where its failure or malfunction may directly threaten human life or cause risk of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation, traffic, safety equipment or medical equipment for life support. 4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly for maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other consequential damage due to operation of the Hitachi product. 5. This product is not designed to be radiation resistant. 6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from Hitachi. 7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor products. Hitachi, Ltd. Semiconductor & Integrated Circuits. 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