HD75161A Octal General Purpose Interface Bus Transceivers ADE-205-591 (Z) 1st. Edition Dec. 2000 Description The HD75161A is an 8 channel general purpose interface bus transceiver designed to meet the requirements of IEEE standard 488-1978. The transceiver is to provide the bus management and data transfer signals during operating in a controller instrumentation system. When combined with the HD75160A octal bus transceiver, the HD75161A provides the complete 16 wire interface for the IEEE 488 bus. The HD75161A features eight driver receiver pairs connected in a front to back configureation to form input/output ports at both the bus and terminal sides. The direction of data through these driver receiver pairs is determined by the DC and TE enable signals. The device exhibits a high impedance to the bus when VCC = 0 V since the bus terminating resistors are built in. If featurs driver outputs which can handle loads up to 48 mA of sink current. Each receiver features p n p transistor inputs for high input impedance and guaranteed hysteresis of 400 mV for increased noise immunity. HD75161A Pin Arrangement GPIB I/O PORTS REN 2 19 REN IFC 3 18 IFC NDAC 4 17 NDAC NRFD 5 16 NRFD DAV 6 15 DAV EOI 7 14 EOI ATN 8 13 ATN SRQ 9 12 SRQ GND 10 11 DC TERMINAL I/O PORTS 20 VCC TE 1 (Top view) Table Of Abbreviation DRIVERS Name Identity Class DC Direction Control Control TE Talk Enable ATN Attention SRQ Service Request REN Remote Enable IFC Interface Clear EOI End Or Identify DAV Data Valid NDAC Not Data Accepted NRFD Not Ready For Data 2 Bus Management Data Transfer HD75161A Function Table Bus management Channels Controls ATN* 1 SRQ REN Data transfer Channels IFC DC TE ATN Controlled By DC H H H R H H L L L H L L L H L X R T R R L H X T R T T T R DAV R NDAC NRFD EOI Controlled by TE T T R R R T T R R T T T T R R R T R T T R T H : High level L : Low level X : Irrelevant R : Receiver T : Transmit Notes: 1. ATN is a normal transceiver channel that functions additionally as an internal direction control or talk enable for EOI whenever the DC and TE inputs are in the same state. 2. Direction of data transmittion is from the terminal side to the bus side and the direction of data receiving is from the bus side to the terminal side. Data transfer is noninverting in both directions. Absolute Maximum Ratings Item Symbol Rating Unit Supply Voltage VCC 7 V Input Voltage VIC 5.5 V Output Current I OL 100 mA Power Dissipation (Ta = 25°C) PT 1150 mW Operating Temperature Range Topr 0 to 70 °C 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. 3 HD75161A Recommended Operating Conditions Item Symbol Min Typ Max Unit Supply Voltage VCC 4.75 5.00 5.25 V Output Current Bus Ports With 3 State Outputs I OH — — –5.2 mA — — –800 µA — — 48 mA — — 16 0 — 70 Terminal Ports Output Current Bus Ports With 3 State Outputs I OL Terminal Ports Operating Temperature 4 Topr °C HD75161A Logic Diagram DC TE ATN D ATN R EOI D EOI R D SRQ R REN REN D R IFC GPIB I/O PORTS TERMINAL I/O PORTS SRQ IFC D R DAV DAV D R NDAC D NDAC R NRFD NRFD D R 5 HD75161A DC Electrical Characteristics (Ta = 0 to 70°C) Item Symbol VCC Min Max Unit Input Voltage VIH 2 — — V VIL — — 0.8 — — –1.5 V Input Clamp Voltage VIK + – Hysteresis Bus VT – VT 0.4 — — V Output Voltage Terminal VOH 2.7 — — V 2.5 — — — — 0.5 — — 0.5 Bus Terminal VOL Bus Input Current Conditions I I = –18 mA I OH = –800 µA I OH = –5.2 mA V I OL = 16 mA I OL = 48 mA µA Terminal II — — 100 Terminal And I IH — — 20 VI = 2.7 V Control Inputs I IL — — –100 VI = 0.5 V 2.5 — 3.7 — — –1.5 –1.3 — — 0 — –3.2 Disabled VI(bus) = 0.4 V to 2.5 V — — +2.5 –3.2 VI(bus) = 2.5 V to 3.7 V 0 — 2.5 VI(bus) = 3.7 V to 5 V 0.7 — 2.5 VI(bus) = 5 V to 5.5 V — — 40 µA –15 — –75 mA –25 — –125 Voltage at Bus Port Current Into Bus VCC ON VI/O (bus) I I/O (bus) Port VCC OFF Short Circuit Terminal Output Current Bus I OS V VI = 5.5 V Driver I I(bus) = 0 Disabled I I(bus) = –12 mA mA Driver VCC = 0, VI(bus) = –1.5 V to 0.4 V VI(bus) = 0 V to 2.5 V Supply Voltage I CC — — 100 mA No Load TE, DC, low Bus port Capacitance CI/O (bus) — 30 — pF VCC = 5 V or 0 V, VI/O = 0 to 2 V, f = 1 MHz Note: 6 1. VCC = 5 V, Ta = 25°C HD75161A Switching Characteristics (VCC = 5 V, Ta = 25°C) Item Symbol Input Output Propagation Delay t PLH Terminal BUS Time t PHL Test Min Typ Max Unit Circuit Test Conditions — 14 20 — 14 20 — 12 20 — 16 22 BUS — — 60 Output Disable Time t HZ ATTN, EO1 — — 45 RL = 480 Ω to 0 V Output Enable Time t ZL REN, IFC — — 60 CL = 15 pF Output Disable Time t LZ and DAY — — 55 RL = 38.3 Ω to 2.3 V Terminal — — 55 Output Disable Time t HZ — — 50 RL = 3 kΩ to 0 V Output Enable Time t ZL — — 45 CL = 15 pF Output Disable Time t LZ — — 55 RL = 280 Ω to 5 V t PLH BUS Terminal t PHL Output Enable Time t ZH Output Enable Time t ZH TE DC TE DC ns 1 CL = 30 pF RL = 38.3 Ω to 2.3 V 2 CL = 30 pF RL = 240 Ω to 5 V 3 4 CL = 15 pF CL = 15 pF 7 HD75161A Switching Time Test Method 2.3 V R L= 38.3 Ω Test Point C L= 30 pF tr tf 90 % 1.5 V Terminal Input 3V 90 % 1.5 V 10 % 10 % t PLH 0V t PHL VOH Bus Output 2V 0.8 V VOL 8 HD75161A 5V Test Point R L= 240 Ω C L= 30 pF tr tf 90 % 1.5 V Bus Input 3V 90 % 1.5 V 10 % 10 % t PLH 0V t PHL VOH Terminal Output 1.5 V 1.5 V VOL 9 HD75161A Test Point 2.3 V R L= 38.3 Ω S2 R L= 480 Ω C L= 15 pF S1 tr tf 90 % 1.5 V Control Input 3V 90 % 1.5 V 10 % 10 % t ZH Bus Output S1 Closed S2 Open 0V t HZ 90 % VOH 2V 0.8 V t ZL t LZ 2.3 V Bus Output S1 Open S2 Closed 10 0.8 V 10 % VOL HD75161A 5V Test Point S2 R L= 280 Ω C L= 15 pF R L= 3 kΩ S1 tr tf 90 % 1.5 V Control Input 3V 90 % 1.5 V 10 % 10 % t ZH Terminal Output S1 Closed S2 Open 0V t HZ 90 % VOH 1.5 V 0V t ZL t LZ 5V Terminal Output S1 Open S2 Closed Notes: 1. 2. 3. 1.5 V 10 % VOL The pulse generator has the following characteristics: PRR = 1 MHz, 50% duty cycle, tr ≤ 6 ns, tf ≤ 6 ns, Zout = 50 Ω CL includes probe and jig capacitance. All diodes are 1S2074(H). 11 HD75161A Characteristics Of Driver And Receiver 5 (b) Driver Output Ta = 25 ˚C V CC = 5.25 V 5.00 V 4.75 V 4 3 2 1 0 0 –20 –40 –60 Low Level Output Voltage VOL (V) High Level Output Voltage VOH (V) (a) Driver Output 0.5 0.4 0.1 0 –80 –100 0 20 30 40 50 Low Level Output Current IOL (mA) 2 1 Low Level Output Voltage VOL (V) High Level Output Voltage VOH (V) V CC = 5.25 V 5.00 V 4.75 V 0.5 0.4 Ta = 25 ˚C V CC = 4.75 V 0.3 V CC = 5.00 V V CC = 5.25 V 0.2 0.1 0 0 0 –10 –20 –30 –40 –50 High Level Output Current IOH (mA) 12 10 (d) Receiver Output Ta = 25 ˚C 3 V CC = 5.00 V V CC = 5.25 V 0.2 (c) Receiver Output 4 V CC = 4.75 V 0.3 High Level Output Current IOH (mA) 5 Ta = 25 ˚C 0 12 18 24 30 Low Level Output Current IOL (mA) HD75161A High Level Output Voltage VOUT (V) (e) Input / Output Characteristics at Receiver 5 VCC = 5 V Ta = 25 ˚C 4 3 VT – 2 VT + 1 0 0 0.4 0.8 1.2 1.6 2.0 High Level Input Voltage VIN (V) 13 HD75161A Package Dimensions Unit: mm 24.50 25.40 Max 6.30 11 1 7.00 Max 20 10 1.30 2.54 ± 0.25 0.48 ± 0.10 0.51 Min 1.27 Max 2.54 Min 5.08 Max 0.89 7.62 + 0.11 0.25 – 0.05 0° – 15° Hitachi Code JEDEC EIAJ Mass (reference value) 14 DP-20N — Conforms 1.26 g HD75161A 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. 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