PI74LPT16373 3.3V 16-BIT TRANSPARENT LATCH 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 PI74LPT16373 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Fast CMOS 3.3V 16-Bit Transparent Latch 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) • Pin compatible with industry standard double-density pinouts • Low ground bounce outputs • Hysteresis on all inputs • Industrial operating temperature range: –40°C to +85°C • Multiple center pins and distributed Vcc/GND pins minimize switching noise • Packages available: – 48-pin 240 mil wide thin plastic TSSOP (A) – 48-pin 300 mil wide plastic SSOP (V) Pericom Semiconductor’s PI74LPT series of logic circuits are produced in the Company’s advanced 0.6 micron CMOS technology, achieving industry leading speed grades. 1 2 The PI74LPT16373 is a 16-bit transparent latch designed with 3-state outputs and are intended for bus oriented applications. The Output Enable and Latch Enable controls are organized to operate as two 8-bit latches or one 16-bit latch. When Latch Enable (LE) is HIGH, the flip-flops appear transparent to the data. The data that meets the set-up time when LE is LOW is latched. When OE is HIGH, the bus output is in the high impedance state. 3 The PI74LPT16373 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. 5 4 6 7 Logic Block Diagram 8 1OE 2OE 1LE 2LE 1 D0 2 D0 D 9 10 D 1O0 C 2O0 11 C 12 TO 7 OTHER CHANNELS 13 TO 7 OTHER CHANNELS 14 15 1 PS2069A 01/16/97 PI74LPT16373 3.3V 16-BIT TRANSPARENT LATCH 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Product Pin Description Pin Name xOE xLE xDx xOx GND VCC Truth Table Description 3-State Output Enable Inputs (Active LOW) Latch Enable Inputs (Active HIGH) Data Inputs 3-State Outputs Ground Power xDx H L X Inputs(1) xLE H H X xOE L L H Outputs(1) xOx H L Z Note: 1. H = High Voltage Level, X = Don't Care, L = Low Voltage Level, Z = High Impedance Product Pin Configuration 1OE 1O 0 1O 1 GND 1O 2 1O 3 VCC 1O 4 1O 5 GND 1O 6 1O 7 1 2 48 47 1LE 3 4 5 6 46 45 44 43 7 8 9 10 11 42 41 40 39 38 1D 1 GND 1D 2 1D 3 VCC 1D 4 1D 5 GND 1D 6 48-PIN 37 V48 A48 36 1D 0 GND 2O 2 2O 3 VCC 2O 4 12 13 14 15 16 17 18 19 2O 5 GND 2O 6 2O 7 20 21 22 23 29 28 27 26 2D 5 GND 2D 6 2D 7 2OE 24 25 2LE 2O 0 2O 1 1D 7 2D 0 35 34 33 32 31 30 2D 1 GND 2D 2 2D 3 VCC 2D 4 Capacitance (TA = 25°C, f = 1 MHz) Parameters(1) CIN COUT Description Test Conditions Typ Max. Units Input Capacitance Output Capacitance VIN = 0V VOUT = 0V 4.5 5.5 6 8 pF pF Note: 1. This parameter is determined by device characterization but is not production tested. 2 PS2069A 01/16/97 PI74LPT16373 3.3V 16-BIT TRANSPARENT LATCH 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature ............................................................. –55°C to +125°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. VIH 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) Description 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 ±1 ±1 ±1 ±1 ±1 ±1 –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 — VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V(3) –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 — VCC = Max.(3), VOUT = GND –60 VCC = 0V, VIN or VOUT ≤ 4.5V — — 2 3 4 DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 2.7V to 3.6V) Parameters 1 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. 5 6 7 8 9 10 11 12 13 14 15 3 PS2069A 01/16/97 PI74LPT16373 3.3V 16-BIT TRANSPARENT LATCH 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 XOE = GND xLE = Vcc 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 XOE = GND XLE = VCC 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 XOE = GND XLE = VCC 16 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 PS2069A 01/16/97 PI74LPT16373 3.3V 16-BIT TRANSPARENT LATCH 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 1 Switching Characteristics over Operating Range(1) Description Conditions(2) tPLH tPHL Propagation Delay xDx to xOx CL = 50 pF RL = 500Ω tPLH tPHL tPZH tPZL Parameters LPT16373 LPT16373A LPT16373C Com. Com. Com. 2 Min(3) Max Min(3) Max Min(3) Max Unit 1.5 7.0 1.5 5.2 1.5 4.2 ns Propagation Delay xLE to xOx 2.0 7.0 2.0 6.5 2.0 5.5 ns Output Enable Time xOE to xOx 1.5 7.2 1.5 6.5 1.5 5.5 ns 1.5 7.2 1.5 5.5 1.5 5.0 ns (4) 3 tPHZ tPLZ Output Disable Time xOE to xOx tSU Setup Time HIGH or LOW, xDx to xLE 2.0 2.0 2.0 ns tH Hold Time HIGH or LOW, xDx to xLE 1.5 1.5 1.5 ns tW xLE Pulse Width HIGH tSK(o) Output Skew(5) (4) 4 5 6 6.0 5.0 0.5 5.0 0.5 ns 0.5 ns 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. 7 8 9 10 11 12 13 14 15 Pericom Semiconductor Corporation 2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com 5 PS2069A 01/16/97