PI74LPT16652 16-BIT REGISTERED TRANSCEIVERS 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 PI74LPT16652 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Fast CMOS 16-Bit Registered Transceivers 1 2 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: – 56-pin 240 mil wide plastic TSSOP (A) – 56-pin 300 mil wide plastic SSOP (V) Pericom Semiconductor's PI74FCT series of logic circuits are produced in the Company’s advanced 0.6 micron CMOS technology, achieving industry leading speed grades. The PI74LPT16652 is 16-bit registered transceivers organized as two independent 8-bit bus transceivers designed with 3-state Dtype flip-flops and control circuitry arranged for multiplexed transmission of data directly from the data bus or from the internal storage registers. Each 8-bit transceiver utilizes the enable controls (xOEAB and x OEBA) to control the transceiver functions. The Select (xSAB and xSBA) control pins are used to select either realtime or stored data transfer. The circuitry used for select control will eliminate the typical decoding glitch that occurs in a multiplexer during the transition between real-time and stored data. A low input level selects real-time data and a high selects stored data. The PI74LPT16652 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. 3 4 5 6 7 Logic Block Diagram 8 1OEAB 2OEAB 1OEBA 2OEBA 1CLKBA 2CLKBA 1SBA 2SBA 1CLKAB 2CLKAB 1SAB 2SAB 9 10 B REG B REG D D C C 1A0 11 12 2A0 A REG A REG 1B0 D 2B0 13 D C C 14 TO 7 OTHER CHANNELS TO 7 OTHER CHANNELS 15 1 Powered by ICminer.com Electronic-Library Service CopyRight 2003 PS2074A 01/16/97 PI74LPT16652 16-BIT REGISTERED TRANSCEIVERS 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Truth Table DATA I/O(2) Inputs Function/Operation Isolation Store A and B Data Store A, Hold B Store A in Both Registers Hold A, Store B Store B in Both Registers Real Time B Data to A Bus Stored B Data to A Bus Real Time A Data to B Bus Stored A Data to B Bus Stored A Data to B Bus and Stored B Data to A Bus 1. 2. xOEAB L L X H L L L L H H H XOEBA H H H H X L L L H H L XCLKAB XCLKBA XSAB XSBA H or L ↑ ↑ ↑ H or L ↑ X X X H or L H or L H or L ↑ H or L ↑ ↑ ↑ X H or L X X H or L X X X X(2) X X X X L H H X X X X X X(2) L H X X H XAX Input XBX Input Input Unspecified(1) Input Output (1) Unspecified Input Output Input Output Input Input Output Output Output The data output functions may be enabled or disabled by various signals at the xOEAB or xOEBA inputs. Data input functions are always enabled, i.e., data at the bus pins will be stored on every low-to-high transition on the clock inputs. Select control = L: clocks can occur simultaneously. Select control = H: clocks must be staggered in order to load both registers. H = High Voltage Level; L = Low Voltage Level; X = Don't Care; ↑ = LOW-to-HIGH transition Product Pin Description Product Pin Configuration 1OEAB 1CLKAB 1SAB GND 1A0 1A1 VCC 1A2 1A3 1A4 GND 1A5 1A6 1A7 2A0 2A1 2A2 GND 2A3 2A4 2A5 VCC 2A6 2A7 GND 2SAB 2CLKAB 2OEAB 1 2 56 55 3 4 54 53 5 6 7 8 52 51 50 1 B0 49 48 47 1 B2 9 10 11 12 13 14 15 16 17 18 19 46 45 56-PIN 44 V56 43 A56 42 1OEBA 1CLKBA 1SBA xBx GND xCLKAB, xCLKBA xSAB, xSBA xOEAB, xOEBA GND VCC 1 B1 VCC 1 B3 1 B4 GND Description Data Register A Inputs Data Register B Outputs Data Register B Inputs Data Register A Outputs Clock Pulse Inputs Output Data Source Select Inputs Output Enable Inputs Ground Power 1 B5 1 B6 1 B7 2 B0 41 40 39 38 37 2 B1 2 B5 22 23 24 36 35 34 33 25 26 27 28 32 31 30 29 20 21 Pin Name xAx 2 B2 GND 2 B3 2 B4 VCC 2 B6 2 B7 GND 2SBA 2CLKBA 2OEBA 2 Powered by ICminer.com Electronic-Library Service CopyRight 2003 PS2074A 01/16/97 PI74LPT16652 16-BIT REGISTERED TRANSCEIVERS 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 1 REAL-TIME TRANSFER BUS A TO B REAL-TIME TRANSFER BUS B TO A 2 BUS BUS BUS BUS A B A B 3 4 xOEAB xOEBA xCLKAB xCLKBA xSAB xSBA H H X X L X xOEAB xOEBA xCLKAB xCLKBA xSAB xSBA L L X X X L STORAGE FROM A AND/OR B TRANSFER STORES DATA TO A AND/OR B BUS BUS BUS BUS A B A B 5 6 7 8 9 xOEAB X L L xOEBA xCLKAB xCLKBA xSAB xSBA H ↑ X X X X X ↑ X X H ↑ ↑ X X xOEAB xOEBA xCLKAB xCLKBA xSAB xSBA H L H or L H or L H H 10 11 12 13 14 15 3 Powered by ICminer.com Electronic-Library Service CopyRight 2003 PS2074A 01/16/97 PI74LPT16652 16-BIT REGISTERED TRANSCEIVERS 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. DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 2.7V to 3.6V) Parameters 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 (3) VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V 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 — — 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. 4 Powered by ICminer.com Electronic-Library Service CopyRight 2003 PS2074A 01/16/97 PI74LPT16652 16-BIT REGISTERED TRANSCEIVERS 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 One Bit Toggling 50% Duty Cycle VIN = VCC VIN = GND 50 75 µA/ MHz VCC = Max., Outputs Open fI = 10 MHZ 50% Duty Cycle XOE = GND One Bit Toggling VIN = VCC – 0.6V VIN = GND 0.6 VCC = Max., Outputs Open fI = 2.5 MHZ 50% Duty Cycle XOE = GND 16 Bits Toggling VIN = VCC – 0.6V VIN = GND IC Total Power Supply Current(6) 2.3 mA 1 2 3 4 5 2.1 4.7(5) 6 7 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. 8 9 10 11 12 13 14 15 5 Powered by ICminer.com Electronic-Library Service CopyRight 2003 PS2074A 01/16/97 PI74LPT16652 16-BIT REGISTERED TRANSCEIVERS 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Switching Characteristics over Operating Range(1) Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ tPLH tPHL tPLH tPHL tSU tH tW tSK(o) (2) LPT16652 LPT16652A Com. Com. Description Conditions Min Propagation Delay Bus to Bus Output Enable Time XOEAB or XOEBA to Bus Output Disable Time(4) XOEAB or XOEBA to Bus Propagation Delay Clock to Bus Propagation Delay xSBA or xSAB to Bus Setup Time HIGH or LOW, BUS to Clock Hold Time HIGH or LOW, Bus to Clock Clock Pulse Width(4) HIGH or LOW Output Skew(5) CL = 50 pF RL = 500 Ω (3) Max Min 2.0 9.0 2.0 (3) LPT16652C Com. Max Min 2.0 6.3 14.0 2.0 2.0 9.0 2.0 (3) Max Unit 1.5 5.4 ns 9.8 1.5 7.8 ns 2.0 6.3 1.5 6.3 ns 9.0 2.0 6.3 1.5 5.7 ns 2.0 11.0 2.0 7.7 1.5 6.2 ns 4.0 — 2.0 — 2.0 — ns 2.0 — 1.5 — 1.5 — ns 6.0 — 5.0 — 5.0 — ns — 0.5 — 0.5 — 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 wave forms. 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. 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. Pericom Semiconductor Corporation 2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com 6 Powered by ICminer.com Electronic-Library Service CopyRight 2003 PS2074A 01/16/97