IDT74LVCH162244A 3.3V CMOS 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS INDUSTRIAL TEMPERATURE RANGE IDT74LVCH162244A 3.3V CMOS 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS, 5 VOLT TOLERANT I/O, AND BUS-HOLD FEATURES: DESCRIPTION: • Typical tSK(o) (Output Skew) < 250ps • ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) • VCC = 3.3V ± 0.3V, Normal Range • VCC = 2.7V to 3.6V, Extended Range μ W typ. static) • CMOS power levels (0.4μ • All inputs, outputs, and I/O are 5V tolerant • Available in SSOP and TSSOP packages The LVCH162244A 16-bit buffer/driver is built using advanced dual metal CMOS technology. The LVCH162244A is designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The device can be used as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. This device provides true outputs and symmetrical active-low output-enable (OE) inputs. All pins of this 16-bit buffer/driver can be driven from either 3.3V or 5V devices. This feature allows the use of this device as a translator in a mixed 3.3V/5V supply system. The LVCH162244A has series resistors in the device output structure which will significantly reduce line noise when used with light loads. This driver has been developed to drive ±12mA at the designated threshold levels. The LVCH162244A has “bus-hold” which retains the inputs’ last state whenever the input goes to a high impedance. This prevents floating inputs and eliminates the need for pull-up/down resistors. DRIVE FEATURES: • Balanced Output Drivers: ±12mA • Full internal series termination APPLICATIONS: • 5V and 3.3V mixed voltage systems • Data communication and telecommunication systems FUNCTIONAL BLOCK DIAGRAM 1OE 1 1A1 47 2 1A2 46 3 1A3 44 5 1A4 43 6 2OE 48 2A1 41 8 2A2 40 9 2A3 38 11 2A4 37 12 3OE 25 1Y1 3A1 36 13 3Y1 1Y2 3A2 35 14 3Y2 1Y3 3A3 33 16 1Y4 3A4 32 17 3Y4 4OE 24 2Y1 4A1 30 19 4Y1 2Y2 4A2 29 20 4Y2 2Y3 4A3 27 22 2Y4 4A4 26 23 3Y3 4Y3 4Y4 The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE MARCH 1999 1 © 1999 Integrated Device Technology, Inc. DSC-4727/4 IDT74LVCH162244A 3.3V CMOS 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS INDUSTRIAL TEMPERATURE RANGE ABSOLUTE MAXIMUM RATINGS(1) PIN CONFIGURATION Symbol Description Max Unit VTERM Terminal Voltage with Respect to GND –0.5 to +6.5 V TSTG Storage Temperature –65 to +150 °C IOUT DC Output Current –50 to +50 mA 1OE 1 48 2OE 1Y1 2 47 1A1 46 1A2 Continuous Clamp Current, VI < 0 or VO < 0 mA 3 IIK IOK –50 1Y2 GND 4 45 ICC ISS Continuous Current through each VCC or GND ±100 mA GND 1Y3 5 44 1A3 1Y4 6 43 1A4 VCC 7 42 VCC 2Y1 8 41 2A1 2Y2 9 40 GND 10 39 GND 2Y3 11 38 2A3 Symbol Conditions Typ. Max. 2Y4 12 37 2A4 CIN Input Capacitance VIN = 0V 4.5 6 pF COUT Output Capacitance VOUT = 0V 6.5 8 pF CI/O I/O Port Capacitance VIN = 0V 6.5 8 pF NOTE: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 2A2 3Y1 13 36 3A1 3Y2 14 35 3A2 GND 15 34 3Y3 16 33 GND 3A3 3Y4 17 32 3A4 VCC 18 31 VCC 4Y1 19 30 4A1 4Y2 20 29 4A2 GND 21 28 GND 4Y3 22 27 4A3 4Y4 23 26 4A4 4OE 24 25 3OE CAPACITANCE (TA = +25°C, F = 1.0MHz) Parameter(1) Unit NOTE: 1. As applicable to the device type. PIN DESCRIPTION Pin Names Description xOE 3-State Output Enable Inputs (Active LOW) xAx Data Inputs(1) xYx 3-State Outputs NOTE: 1. These pins have "Bus-Hold". All other pins are standard inputs, outputs, or I/Os. FUNCTION TABLE (EACH 4-BIT BUFFER)(1) Inputs SSOP/ TSSOP TOP VIEW xOE xAx xYx L L L L H H H X Z NOTE: 1. H = HIGH Voltage Level X = Don’t Care L = LOW Voltage Level Z = High-Impedance 2 Outputs IDT74LVCH162244A 3.3V CMOS 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Operating Condition: TA = –40°C to +85°C Symbol VIH VIL Min. Typ.(1) Max. Unit VCC = 2.3V to 2.7V 1.7 — — V VCC = 2.7V to 3.6V 2 — — VCC = 2.3V to 2.7V — — 0.7 VCC = 2.7V to 3.6V — — 0.8 Parameter Input HIGH Voltage Level Input LOW Voltage Level Test Conditions V Input Leakage Current VCC = 3.6V VI = 0 to 5.5V — — ±5 µA IOZH High Impedance Output Current VCC = 3.6V VO = 0 to 5.5V — — ±10 µA IOZL (3-State Output pins) IOFF Input/Output Power Off Leakage VCC = 0V, VIN or VO ≤ 5.5V — — ±50 µA VIK Clamp Diode Voltage VCC = 2.3V, IIN = –18mA — –0.7 –1.2 V VH ICCL ICCH ICCZ ΔICC Input Hysteresis Quiescent Power Supply Current VCC = 3.3V VCC = 3.6V VIN = GND or VCC — — 100 — — 10 mV µA 3.6 ≤ VIN ≤ 5.5V(2) One input at VCC - 0.6V, other inputs at VCC or GND — — — — 10 500 µA Min. Typ.(2) Max. Unit – 75 — — µA VI = 0.8V 75 — — VI = 1.7V — — — IIH IIL Quiescent Power Supply Current Variation NOTES: 1. Typical values are at VCC = 3.3V, +25°C ambient. 2. This applies in the disabled state only. BUS-HOLD CHARACTERISTICS Symbol IBHH Parameter(1) Test Conditions Bus-Hold Input Sustain Current VCC = 3V Bus-Hold Input Sustain Current VCC = 2.3V Bus-Hold Input Overdrive Current VCC = 3.6V VI = 2V IBHL IBHH IBHL IBHHO IBHLO NOTES: 1. Pins with Bus-Hold are identified in the pin description. 2. Typical values are at VCC = 3.3V, +25°C ambient. 3 VI = 0.7V — — — VI = 0 to 3.6V — — ±500 µA µA IDT74LVCH162244A 3.3V CMOS 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS INDUSTRIAL TEMPERATURE RANGE OUTPUT DRIVE CHARACTERISTICS Symbol VOH VOL Test Conditions(1) Parameter Output HIGH Voltage Output LOW Voltage Min. Max. Unit VCC – 0.2 — V IOH = – 4mA 1.9 — VCC = 2.3V to 3.6V IOH = – 0.1mA VCC = 2.3V IOH = – 6mA 1.7 — VCC = 2.7V IOH = – 4mA 2.2 — IOH = – 8mA 2 — VCC = 3V IOH = – 6mA 2.4 — IOH = – 12mA 2 — VCC = 2.3V to 3.6V IOL = 0.1mA — 0.2 VCC = 2.3V IOL = 4mA — 0.4 IOL = 6mA — 0.55 IOL = 4mA — 0.4 IOL = 8mA — 0.6 IOL = 6mA — 0.55 IOL = 12mA — 0.8 VCC = 2.7V VCC = 3V V NOTE: 1. VIH and VIL must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table for the appropriate VCC range. TA = – 40°C to + 85°C. OPERATING CHARACTERISTICS, TA = 25°C Symbol Parameter CPD Power Dissipation Capacitance per Buffer/Driver Outputs enabled CPD Power Dissipation Capacitance per Buffer/Driver Outputs disabled Test Conditions Typical Unit CL = 0pF, f = 10Mhz 35 pF 4 SWITCHING CHARACTERISTICS(1) VCC = 2.7V Symbol VCC = 3.3V ± 0.3V Parameter Min. Max. Min. Max. Unit tPLH Propagation Delay — 5.6 1.1 4.4 ns — 6.9 1 5.5 ns — 6.8 1.8 6.3 ns — — — 500 ps tPHL xAx to xYx tPZH Output Enable Time tPZL xOE to xYx tPHZ Output Disable Time tPLZ xOE to xYx tSK(o) Output Skew(2) NOTES: 1. See TEST CIRCUITS AND WAVEFORMS. TA = – 40°C to + 85°C. 2. Skew between any two outputs of the same package and switching in the same direction. 4 IDT74LVCH162244A 3.3V CMOS 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS INDUSTRIAL TEMPERATURE RANGE TEST CIRCUITS AND WAVEFORMS TEST CONDITIONS Symbol VCC(1)= 3.3V±0.3V VCC(1)= 2.7V VLOAD 6 VCC(2)= 2.5V±0.2V Unit 2 x Vcc V 6 VIH 2.7 2.7 Vcc V VT 1.5 1.5 Vcc / 2 V VLZ 300 300 150 mV VHZ 300 300 150 mV CL 50 50 30 pF VIH VT 0V VOH VT VOL SAME PHASE INPUT TRANSITION tPLH tPHL tPLH tPHL OUTPUT VIH VT 0V OPPOSITE PHASE INPUT TRANSITION LVC Link Propagation Delay 500Ω Pulse (1, 2) Generator tPZL GND VOUT OUTPUT SWITCH NORMALLY CLOSED LOW tPZH OUTPUT SWITCH NORMALLY OPEN HIGH D.U.T. 500Ω RT CL Test Circuit for All Outputs VIH VT 0V CONTROL INPUT Open VIN DISABLE ENABLE VLOAD VCC tPLZ VLOAD/2 VT VLOAD/2 VLZ VOL tPHZ VOH VHZ 0V VT 0V LVC Link LVC Link DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. Enable and Disable Times NOTE: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH. NOTES: 1. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2.5ns; tR ≤ 2.5ns. 2. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2ns; tR ≤ 2ns. DATA INPUT SWITCH POSITION Switch Open Drain Disable Low Enable Low VLOAD ASYNCHRONOUS CONTROL Disable High Enable High GND SYNCHRONOUS CONTROL All Other Tests Open OUTPUT 1 tSK (x) tSK (x) tPLH2 tH Set-up, Hold, and Release Times VOH VT VOL VT tW HIGH-LOW-HIGH PULSE VT LVC Link tPHL2 Pulse Width tSK(x) = tPLH2 - tPLH1 or tPHL2 - tPHL1 Output Skew - tSK(X) tSU LOW-HIGH-LOW PULSE VOH VT VOL OUTPUT 2 tREM LVC Link VIH VT 0V tPHL1 tPLH1 tH TIMING INPUT Test INPUT tSU VIH VT 0V VIH VT 0V VIH VT 0V VIH VT 0V LVC Link NOTES: 1. For tSK(o) OUTPUT1 and OUTPUT2 are any two outputs. 2. For tSK(b) OUTPUT1 and OUTPUT2 are in the same bank. 5 IDT74LVCH162244A 3.3V CMOS 16-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION IDT LVC X XX Bus-Hold Temp. Range XX Family XX XXXX Device Type Package PV PA PAG Shrink Small Outline Package Thin Shrink Small Outline Package TSSOP - Green 244A 16-Bit Buffer/Driver with 3-State Outputs CORPORATE HEADQUARTERS 6024 Silver Creek Valley Road San Jose, CA 95138 162 Double-Density with Resistors, ±12mA H Bus-hold 74 -40°C to +85°C for SALES: 800-345-7015 or 408-284-8200 fax: 408-284-2775 www.idt.com 6 for Tech Support: [email protected]