PI74LPT827 3.3V 10-BIT BUFFERS 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 PI74LPT827 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Fast CMOS 3.3V 10-Bit Buffers Product Features Product Description Compatible with LCX and LVT families of products Supports 5V tolerant mixed signal mode operation Input can be 3V or 5V Output can be 3V or connected to 5V bus Advanced low power CMOS operation Excellent output drive capability: Balanced drives (24 mA sink and source) Low ground bounce outputs Hysteresis on all inputs Industrial operating temperature range: 40°C to +85°C Packages available: 24-pin 173-mil wide plastic TSSOP (L) 24-pin 150-mil wide plastic QSOP (Q) 24-pin 150-mil wide plastic TQSOP (R) 24-pin 300-mil wide plastic SOIC (S) Pericom Semiconductors PI74LPT series of logic circuits are produced using the Companys advanced 0.6 micron CMOS technology, achieving industry leading speed grades. The PI74LPT827 is a 10-bit wide non-inverting bus driver providing high-performance bus interface buffering for wide address/data paths or buses carrying parity. The 10-bit buffers have nand-ed output enables for maximum control flexibility. They are designed for high-capacitance load drive capability, while providing lowcapacitance bus loading at both inputs and outputs. The PI74LPT827 can be driven from either 3.3V or 5.0V devices allowing this device to be used as a translator in a mixed 3.3/5.0V system. Logic Block Diagram 1 PS2065A 01/15/97 PI74LPT827 3.3V 10-BIT BUFFERS 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Product Pin Configuration OE1 D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 GND Product Pin Description 1 24 2 23 3 22 4 21 24-PIN 5 20 L24 6 19 Q24 7 18 R24 8 17 S24 9 16 10 15 11 14 12 13 Pin Name OEN D0-D9 Y0-Y9 GND VCC VCC Y0 Y1 Y2 Y3 Y4 Description Output Enable Input (Active LOW) 10-bit Data Inputs 10-bit Data Outputs Ground Power Y5 Y6 Y7 Y8 Y9 OE2 Truth Table(1) Inputs Function Outputs OE1 OE2 DN YN Transparent L L L L Three-State L H X L X H H X X H Z Z Note: 1. H = High Voltage Level L = Low Voltage Level X = Don't Care Z = High Impedance 2 PS2065A 1/15/97 PI74LPT827 3.3V 10-BIT BUFFERS 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature ............................................................ 65°C to +150°C Ambient Temperature with Power Applied ........................... 40°C to +85°C Supply Voltage to Ground Potential (Inputs & Vcc Only) .... 0.5V to +7.0V Supply Voltage to Ground Potential (Outputs & D/O Only) 0.5V to +7.0V DC Input Voltage .................................................................. 0.5V to +7.0V DC Output Current ............................................................................ 120 mA Power Dissipation ................................................................................... 1.0W Note: Stresses greater than those listed under 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. DC Electrical Characteristics (Over the Operating Range, TA = 40°C to +85°C, VCC = 2.7V to 3.6V) Parameters VIH Description IOZH IOZL VIK IODH IODL VOH Input HIGH Voltage (Input pins) Input HIGH Voltage (I/O pins) Input LOW Voltage (Input and I/O pins) Input HIGH Current (Input pins) Input HIGH Current (I/O pins) Input LOW Current (Input pins) Input LOW Current (I/O pins) High Impedance Output Current (3-State Output pins) Clamp Diode Voltage Output HIGH Current Output LOW Current Output HIGH Voltage VOL Output LOW Voltage IOS IOFF VH Short Circuit Current(4) Power Down Disable Input Hysteresis VIL IIH IIL Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level Min. Typ(2) Max. Units 2.2 2.0 0.5 5.5 5.5 0.8 V V V 0.7 60 90 3.0 3.0 0.2 0.3 85 150 ±5 ±5 ±5 ±5 ±5 ±5 1.2 110 200 0.2 0.4 0.5 240 ±100 µA µA µA µA µA µA V mA mA V V V VCC = Max. VIN = 5.5V VCC = Max. VIN = VCC VCC = Max. VIN = GND VCC = Max. VIN = GND VCC = Max. VOUT = 5.5V VCC = Max. VOUT = GND VCC = Min., IIN = 18 mA (3) VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V 36 VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V(3) 50 VCC = Min. IOH = 0.1 mA Vcc-0.2 VIN = VIH or VIL IOH = 3 mA 2.4 VCC = 3.0V, IOH = 8 mA 2.4(5) VIN = VIH or VIL IOH = 24 mA 2.0 VCC = Min. IOL = 0.1 mA VIN = VIH or VIL IOL = 16 mA IOL = 24 mA (3) VCC = Max. , VOUT = GND 60 VCC = 0V, VIN or VOUT ≤ 4.5V V V V mA µA mV Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at Vcc = 3.3V, +25°C ambient and maximum loading. 3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 4. This parameter is guaranteed but not tested. 5. VOH = VCC 0.6V at rated current. Capacitance (TA = 25°C, f = 1 MHz) Parameters(1) CIN COUT Description Test Conditions Input Capacitance Output Capacitance VIN = 0V VOUT = 0V Typ. Max. Units 4.5 5.5 6 8 pF pF Note: 1. This parameter is determined by device characterization but is not production tested. 3 PS2065A 01/15/97 PI74LPT827 3.3V 10-BIT BUFFERS 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Power Supply Characteristics Parameters Description Test Conditions(1) Min. Typ(2) Max. Units ICC Quiescent Power Supply Current VCC = Max. VIN = GND or VCC 0.1 10 µA ∆ICC Quiescent Power Supply Current TTL Inputs HIGH VCC = Max. VIN = VCC 0.6V(3) 2.0 30 µA ICCD Dynamic Power Supply(4) VCC = Max., Outputs Open OEX = GND One Bit Toggling 50% Duty Cycle VIN = VCC VIN = GND 50 75 µA/ MHz IC Total Power Supply Current(6) VCC = Max., Outputs Open fI = 10 MHZ 50% Duty Cycle OEX = GND One Bit Toggling VIN = VCC 0.6V VIN = GND 0.6 2.3 mA VCC = Max., Outputs Open fI = 2.5 MHZ 50% Duty Cycle OEX = GND Ten Bits Toggling VIN = VCC 0.6V VIN = GND 2.1 4.7(5) Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at Vcc = 3.3V, +25°C ambient. 3. Per TTL driven input; all other inputs at Vcc or GND. 4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations. 5. Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested. 6. IC =IQUIESCENT + IINPUTS + IDYNAMIC IC = ICC + ∆ICC DHNT + ICCD (fCP/2 + fINI) ICC = Quiescent Current (ICCL, ICCH and ICCZ) ∆ICC = Power Supply Current for a TTL High Input DH = Duty Cycle for TTL Inputs High NT = Number of TTL Inputs at DH ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL) fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices) NCP = Number of Clock Inputs at fCP fI = Input Frequency NI = Number of Inputs at fI All currents are in milliamps and all frequencies are in megahertz. 4 PS2065A 1/15/97 PI74LPT827 3.3V 10-BIT BUFFERS 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Switching Characteristics over Operating Range(1) LPT827A LPT827B LPT827C Com. Com. Com. Parameters Description Conditions Min. tPLH tPHL Propagation Delay DXX to YX CL = 50 pF RL = 500Ω 1.5 6.5 tPZH tPZL Output Enable Time OEx to Yx 1.5 tPHZ tPLZ Output Disable Time(4) OEx to Yx 1.5 (2) (3) Max. Min. Max. Min.(3) Max. Units 1.5 5.0 1.5 4.4 ns 9.5 1.5 8.0 1.5 7.0 ns 8.5 1.5 6.0 1.5 5.7 ns (3) Notes: 1. Propagation Delays and Enable/Disable times are with Vcc = 3.3V ±0.3V, normal range. For Vcc = 2.7V, extended range, all Propagation Delays and Enable/Disable times should be degraded by 20%. 2. See test circuit and waveforms. 3. Minimum limits are guaranteed but not tested on Propagation Delays. 4. This parameter is guaranteed but not production tested. 5. Skew between any two outputs, of the same package, switching in the same direction. This parameter is guaranteed by design. Pericom Semiconductor Corporation 2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com 5 PS2065A 01/15/97