PI74LVTCH16244 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 3.3V 16-Bit Buffer/Line Driver with 3-State Outputs Product Features Product Description · Advanced low power CMOS design for 2.7V to 3.6V Vcc operation · Supports 5V input/output tolerance in mixed signal mode operation · Function compatible with LVT family of products · Balanced ±24mA output drive · Typical VOGB (Output Ground Bounce) <0.8V at VCC=3.3V, TA=25°C · Ioff and Power Up/Down 3-State support live insertion · Bus Hold on data inputs eliminates the need for external pull-up/down resistors · Latch-up performance exceeds 200mA Per JESD78 · ESD protection exceeds JESD 22 – 2000V Human-Body Model (A114-B) – 200V Machine Model (A115-A) · Industrial Temperature: –40°C to +85°C · Available Packages (Pb-free & Green available): – 48-pin 240-mil wide plastic TSSOP (A) The PI74LVTCH16244 is a non-inverting 16-bit buffer and line driver designed for low-voltage 2.7V to 3.6V VCC operation, with the capability of interfacing to the 5V system environment. This buffer/ driver is designed specifically to improve both the performance and density of 3-State memory address drivers, clock drivers, and busoriented receivers and transmitters. The device can be used as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. The PI74LVTCH16244 has "Bus Hold" which retains the data input's last valid logic state whenever the data input goes to highimpedance, preventing "floating" inputs and eliminating the need for pull-up/down resistors. When Vcc is between 0 to 1.5V during power up or power down, the device is in the high-impedance state. To ensure the highimpedance state above 1.5V, OE should be tied to Vcc through a pullup resistor; the minimum value of the resistor is determined by the current sinking capability of the driver. The device fully supports live-insertion with its Ioff and power-up/ down 3-state. The Ioff circuitry disables the outputs when the power is off, preventing the backflow of damaging current through the device. Power-up/down 3-state places the outputs in the highimpedance state during power up or power down, preventing driver conflict. Logic Block Diagram 3OE 25 1OE 1 1A1 1A2 1A3 1A4 2OE 2A1 2A2 2A3 2A4 47 2 46 3 44 5 43 6 1Y1 3A1 1Y2 3A2 1Y3 3A3 1Y4 3A4 48 4OE 41 8 2Y1 40 9 2Y2 4A2 38 11 2Y3 4A3 37 12 06-0214 2Y4 4A1 4A4 36 13 35 14 33 16 32 17 3Y1 3Y2 3Y3 3Y4 24 30 19 29 20 27 22 26 23 4Y1 4Y2 4Y3 4Y4 1 PS8650B 06/05/06 PI74LVTCH16244 3.3V 16-Bit Buffer/Line Driver with 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Product Pin Description Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Pin Name Supply voltage range, VCC .............................. –0.5V to +6.5V Input voltage range, VI(1) ................................. –0.5V to +6.5V Voltage range applied to any output in the high-impedance or power-off state, VO(1) ........ –0.5V to +6.5V Voltage range applied to any output in the active state, VO(1,2) .................................... –0.5V to VCC +0.5V Input clamp current, IIK (VI <0) ..................................... –50mA Output clamp current, IOK (VO <0) ............................... –50mA Continous Output Current IO ....................................... ±50mA Continous Current through each VCC or GND pin .............. ±100mA Package thermal impedance, θJA(3) ............................ 104°C/W Storage Temperature range, Tstg ..................... –65°C to 150°C xOE 3- State Output Enable Inputs (Active LOW) xAx Inputs xYx 3- State Outputs GND Ground VC C Power Product Pin Configuration 1OE 1 48 2OE 1Y1 2 47 1A1 1Y2 3 46 1A2 GND 4 45 GND 1Y3 5 44 1A3 1Y4 6 43 1A4 VCC 7 42 2Y1 8 41 VCC 2A1 2Y2 9 40 2A2 GND 10 39 GND 2Y3 11 38 2A3 2Y4 12 37 2A4 3Y1 13 36 3A1 3Y2 14 35 3A2 GND 15 34 GND Outputs 3Y3 16 33 3A3 3Y4 VCC 17 32 18 31 3A4 VCC 30 4A1 Notes: 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. 1. Input negative-voltage and output voltage ratings may be exceeded if the input and output clamp current ratings are observed. 2. This value is limited to 6.5V maximum. 3. The package thermal impedance is calculated in accordance with JESD 51. (1) Truth Table Inputs De s cription xOE xAx xYx L H H 4Y1 19 L L L 4Y2 20 29 4A2 H X Z GND 21 28 GND 4Y3 22 27 4A3 4Y4 23 26 4A4 4OE 24 25 3OE Notes: 1. H = High Signal Level L = Low Signal Level X = Don’t Care or Irrelevant Z = High Impedance 06-0214 2 PS8650B 06/05/06 PI74LVTCH16244 3.3V 16-Bit Buffer/Line Driver with 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Recommended Operating Conditions(1) M in. M a x. Units 3 .6 V VCC Supply Voltage Operating 2.7 VIH High- level Input Voltage VCC = 2.7V to 3.6V 2 .0 VIL Low- level Input Voltage VCC = 2.7V to 3.6V VI Input Voltage VO Output Voltage IOH High- level output current IOL Low- level output current 0. 8 0 5 .5 High or Low State 0 VCC 3- State 0 5.5 VCC = 2.7V –12 VCC = 3.0V to 3.6V –24 VCC = 2.7V 12 VCC = 3.0V to 3.6V 24 mA 10 Δt/Δv Input transition rise or fall rate Δt/ΔVCC Power- up ramp rate 150 TA –40 Operating free- air temperature ns/V μs/V 85 °C Notes: 1. All unused inputs must be held at VCC or GND to ensure proper device operation. 06-0214 3 PS8650B 06/05/06 PI74LVTCH16244 3.3V 16-Bit Buffer/Line Driver with 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 DC Electrical Characteristics (Over the Operating Range, TA = –40°C +85°C) Parame te rs VIK VOH De s cription Clamp Diode Voltage Output High Voltage Te s t Conditions VCC = 2.7V II = –18mA VCC = 2.7V to 3.6V IOH = –100μA VCC –0.2V VCC = 2.7V IOH = –12mA 2. 2 IOH = –12mA 2. 4 IOH = –24mA 2 .2 VCC = 3V VOL Output Low Voltage Units –1.2V V IOL = 100μA 0 .2 VCC = 2.7V IOL = 12mA 0 .4 IOL = 12mA 0 .4 IOL = 24mA 0.5 5 VI = 0V to5.5V ±5 Control Inputs VCC = 0V to 3.6V Input Leakage Current M ax. VCC = 2.7V to 3.6V VCC = 3V II M in. VI = 5.5V Data Inputs VCC = 3.6V VI = VCC ±5 VI = GND II(HOLD) Data Input Hold Current VCC = 3V VI = 0.8V 75 VI = 2V –75 VCC = 3.6V(1) VI = 0 to 3.6V ± 50 0 IOFF Power Off Output Leakage Current VCC = 0V VI or VO = 0V to 5.5V ±5 IOZ 3- State Output Leakage Current VCC = 2.7V to 3.6V VO = 0V to 5.5V ±5 IOZPU Power- Up 3- State Current VCC = 0V to 1.5V VO = 0.5V to 5.5V, OE = don't care ±5 IOZPD Power- Down 3- State Current VCC = 1.5V to 0V VO = 0.5V to 5.5V, OE = don't care ±5 ICC Quiescent Power Supply Current VCC = 2.7V to 3.6V ΔICC Increase in ICC VCC = 3V to 3.6V VI = VCC or GND 3.6V ≤ VI ≤ 5.5V IO = 0 One input at VCC - 0.6V(2) Other inputs at VCC or GND μA 100 200 Notes: 1. This is the maximum bus-hold dynamic current. It is the minimum overdrive current required to switch the input from one state to another. 2. This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND. 06-0214 4 PS8650B 06/05/06 PI74LVTCH16244 3.3V 16-Bit Buffer/Line Driver with 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Capacitance Parame te rs De s cription Typ.(1) Te s t Conditions CI Input Capacitance VCC = 3.3V, VI = VCC or GND 3.7 CO Output Capacitance VCC = 3.3V, VO = VCC or GND 7 CPD Power Dissipation Capacitance (2) VCC = 3.3V, VI = 0V or VCC, f =10 MHz 16 Units pF Notes: 1. All typical values are measured at VCC = 3.3V, TA = 25°C 2. CPD is defined as the value of the internal equivalent capacitance which is derived from dynamic operating current consumption (ICCD) at no output loading and operating at 50% duty cycle, CPD is related to ICCD dynamic operating current by the expression: ICCD= (CPD)(VCC)(fIN)+(ICCstatic) Switching Characteristics Over Operating Range Parame te rs tPLH tPHL tPZH tPZL tPHZ tPLZ tSK(O) De s cription From (Input) To (Output) Propagation Delay A Y Output Enable Time OE Y Output Disable Time OE Y VCC = 3.3V ±0.3V VCC = 2.7V CL = 50pF, RL = 500-ohm CL = 50pF, RL = 500-ohm M in. Typ.(1) M ax. 1. 0 2.5 3 .4 3. 8 1. 0 2.5 3 .4 3 .8 1. 0 2.9 4.2 5.0 1. 0 3.0 4.2 5.0 1. 0 2.5 4.0 4. 7 1. 0 2.4 3 .9 4.3 Output to Output Skew(2) M in. Units M a x. ns 0.5 Notes: 1. All typical values are measured at VCC = 3.3V, TA = 25°C 2. Skew between any two outputs, switching in the same direction. 06-0214 5 PS8650B 06/05/06 PI74LVTCH16244 3.3V 16-Bit Buffer/Line Driver with 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 PARAMETER MEASUREMENT INFORMATION VCC = 2.7V and 3.3V ±0.3V 6V S1 500Ω From Output Under Test CL = 50pF Open GND 500Ω (See Note A) Te s t S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open 6V GND Load Circuit tW 2.7V 1.5V Input 1.5V 0V Voltage Waveforms Pulse Duration Output Control (Low Level Enabling) 2.7V Input 1.5V Output Waveform 1 S1 at 6V (see Note B) 1.5V 0V tPHL tPLH Output 1.5V Output Waveform 2 S1 at GND (see Note B) VOL Voltage Waveforms Propagation Delay Times 1.5V 0V tPLZ tPZL 3V 1.5V tPZH VOH 1.5V 2.7V 1.5V VOL+0.3V tPHZ 1.5V VOH -0.3V VOL VOH 0V Voltage Waveforms Enable and Disable Times Figure 1. Load Circuit and Voltage Waveforms Notes: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. • All input impulses are supplied by generators having the following characteristics: PRR £ 10 MHz, ZO = 50W, tR £ 2.5ns, tF £ 2.5ns. • The outputs are measured one at a time with one transition per measurement. 06-0214 6 PS8650B 06/05/06 PI74LVTCH16244 3.3V 16-Bit Buffer/Line Driver with 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Packaging Mechanical: 48-pin TSSOP (A) 48 .236 .244 1 6.0 6.2 .488 12.4 .496 12.6 .047 1.20 Max SEATING PLANE .004 0.09 .008 0.20 X.XX X.XX DENOTES DIMENSIONS IN MILLIMETERS .0197 BSC 0.50 .002 .006 0.05 0.15 .007 .010 0.17 0.27 0.45 .018 0.75 .030 .319 BSC 8.1 Ordering Information Orde ring Code Package Code Package De s cription PI74LVTCH16244A A 48- pin, 240- mil wide plastic TSSOP PI74LVTCH16244AE A Pb- free, 48- pin, 240- mil wide plastic TSSOP Notes: • Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ • E = Pb-free & Green • Adding an X suffix = Tape/Reel Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 06-0214 7 PS8650B 06/05/06