(1) PERICOM PI74ALVCT16260 PUPP EUT PPE PREPPED DEUTER PED PU TUDE PEP PEED PP EDT PEPE T PUTT E EEDA EEG PDE Product Features PI74ALVCT 16260 is designed for low voltage operation Vcc=2.3V to3.6V 5V tolerant inputs and outputs Hysteresis on all inputs Typical Vo_p (Output Ground Bounce) <0.8V at Vcc =3.3V, TA = 25C Typical Vonv (Output Vox Undershoot) <2.0V at Vcc =3.3V. Ta = 25C Industrial operation at 40C to +85C Packages available: 56-pin 240 mil wide plastic TSSOP (A56) 56-pin 300 mil wide plastic SSOP (V56) Logic Block Diagram vere 2 Le2e Zz LEAIB 55 LEA2B OES => 29 OE1B 1 OEA se. 28 . v TO 11 OTHER CHANNELS: 12-Bit To 24-Bit Multiplexed D-Type Latch with 3-STATE Outputs Product Description Pericom Semiconductors PI74ALVCT series of logic circuits are produced in the Companys advanced 0.5 micron CMOS technology, achieving industry leading speed. The PI74ALVCT16260 is a 12-bit to 24-bit multiplexed D-type latch designed for 2.3V to 3.6 Vcc operation. It is used in applications where two separate datapaths must be multiplexed onto, or demultiplexed from, a single data path. Typical applications include multiplexing and/or demulti-plexing address and data information in microprocessor or bus-interface applications. This device is also useful in memory-interleaving applications. Three 12-bit YO ports(A1-A12, 1B1-1B12,and2B1-2B12)are available for address and/or data transfer. The output-enable (OE1B, OE2B, and OEA) inputs control the bus transceiver functions. The OE1B and OE2B control signals also allow bank control in the A-to-B direction. Address and/or data information can be stored using the internal storage latches. The latch-enable (LE1B, LE2B, LEA1B, andLEA2B) inputs are used to control data storage. When the latch-enable input is HIGH, the latch is transparent. When the latch-enable input goes LOW, the data present at the inputs is latched and remains latched until the latch-enable input is returned HIGH. To ensure the high-impedance state during power up or power down, 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 ALVCT16260 can be driven from either 3.3V or 5V devices allowing it to be used in mixed 3V/5V systems. 81 PSB131A 03/17/98(1) PERICOM Product Pin Description Pin Name Description OE Output Enable Input (Active LOW) | SEL, Select | 1B Latch Enable A,1B,2B Data Inputs A,1B,2B 3-State Outputs GND Ground Vac | Power Product Pin Configuration OFA 1 7 56 LE1B (2 55 283 03 54 GND 4 53 282 05 52 2B1 6 s6.pin 51 Veco C7 vs5s6 50 Ai 8 A56 49 A2 09 48 A3 [10 47 GND {11 46 A4 (12 45 A5 (13 44 Asp 114 43 A7 15 42 As 16 41 Ag 017 40 GND [18 39 Aio O19 38 Ait 020 37 Ai2 [21 36 Voc 0 22 35 1B1 0 23 34 1B2 [24 33 GND 0 25 32 1B3 O26 31 LE2B [| 27 30 Sse. 1 28 29 OOo OoOoOe oso Too oa aaa eo earaea OE2B LEA2B 2B4 2B5 2B6 voc 2B7 2B8 2B9 GND 2B10 2Bt1 2B12 1B12 1B11 1B10 GND 1B9 1B8 1B7 Voc 1B6 1B5 GND 1B4 LEA1B OEIB PI74ALVCT16260 12-Bit To 24-Bit Multiplexed D-Type Latch with 3-State Outputs Truth Tables BtoA (OEB=H) Inputs 1B | 2B | SEL | LEIB | LE2B | H Xx H H x L xX H x | x H L X x H L x H x L L x H Xx x L x L a xX x X X x AtoB(OEA=H) Inputs Outputs A | LEAIB| LEA2B| OEIB| OE2B| 1B 2B H H H L L H L H H L L L L H H L L L 2B0 L H L L L L 2B0 H L H L L 1B0 H L L H L L 1BO L xX L L L L 1B0 2B0 x x x H H Z Zz x x XxX L H_ | Active Zz Xx x Xx H L Z Active Xx Xx x L L_ | Active | Active Note 1.H = High Signal Level L = Low Signal Level X = Irrelevant Z = High Impedance 82 PS8131A 03/17/98(1) PERICOM PI74ALVCT16260 12-Bit To 24-Bit Multiplexed D-Type Latch with 3-State Outputs ERCP PEPET ETE OPE O PPE EPO EEE CPPCC E TEE OEE Raa Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature oo... esse esters ee caeeeerensenenensaeeees -65C to +150C Ambient Temperature with Power Applied ...........:ccce 40C to +85C Input Voltage Range, VIN wee 0.5V to Voc +0.5V Output Voltage Range, VouT... 0.5V to Vcc +0.5V DC Input Voltage ..... ccc seseseserssescenenenseseeesseresseannsenaneees ~0.5V to +5.0V DC Output Current .. Power Dissipation .... 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 =40C to +85C, Voc=3.3V + 10%) Parameters Description Test Conditions) Min. Typ.2) | Max. Units Vec Supply Voltage 2.3 3.6 Voc = 2.3V to 2.7V 17 5.5 Vy? Input HIGH Voltage Veo = 2.7V to 3.6V 2.0 5.5 Voc = 2.3V to 2.7V 0.7 Va Input LOW Vohage Voc = 2.7V to 3.6V 0.8 Vin Input Voltage 0 5.5 Vout? Output Voltage 0 5.5 Tow = -1L00UA, Voc = Min. to Max. | Voc -0.2 Vin = L-7V, Iog = -6mA, Veco = 2.3V 2.0 Output os OW Vou HIGH Vin = 1.7V, log = -12mA, Veco = 2.3V 17 Voltage Vin = 2.0V, Ionq = -12mA, Voc = 2.7V 22 Vin = 2.0V, Tog = -12mA, Vec = 3.0V 2.4 | Var = 2.0V, Ion = -24mA, Veo = 3.0V | 2.0 To, = 1002A, Vy. = Min. to Max. 0.2 Output Vip = 0.7V, Ip = MA, Voc = 2.3V 04 Vor LOW Vy, = 0.7V, Io, = 12mA, Veo = 2.3V 0.7 Voltage w = 9.79, Ioi Veo = 2. . Vi = 0.8V, Ip, = 12mA, Veo = 2.7V 04 | Viz = 0.8V, Igy, = 24mA, Voc = 3.0V 0.55 Veco =2.3V -12 Output ce Ion) HIGH Voc = 2.7V -12 Cc t umn Voc = 3.0V -24 mA Vee = 2.3V 12 Output ce Ig LOW ~ | Current Vec = 2.7V 12 | Voc = 3.0V a 83 PS8131A 03/17/98PI74ALVCT16260 (1) P ER I COM 12-Bit To 24-Bit Multiplexed D-Type Latch with 3-State Outputs DC Electrical Characteristics-Continued (Over the Operating Range, T 4 =40C to +85C, Voc =3.3V + 10%) - Parameters Description Test Conditions !) Min. Typ. | Max. Units - | = D, Voc = 3.6V i In | Input Current Vin = Vec or GND, Voc = 3.6 5 Ioz Output Current (3-STATE Outputs) Vout = 5.5V or GND +10 Voc = 3.6V, Tour = OWA, tec | Supply Current | Vin = GND ot Voc 40 yA | Voc = 3.0 to 3.6V | Supply coment Per tapes One Input at Vee - 0.6V 750 Other Inputs at Voc or GND Cy Control Inputs | Vin = Vec or GND, Vege = 3.3V 3.5 | -~______ : ~ pF Cig | Outputs | Vo = Vec or GND, Voc = 3.3V 9 Notes: lt. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at Vcc = 3.3V, +25C ambient and maximum loading. 3. Unused Control Inputs must be held HIGH or LOW to prevent them from floating. Timing Requirements over Operating Range Veco =25V202V | Voc =2.7V | Veco =33V+403V Parameters Description Units Min. Max. | Min | Max.; Min. Max, Pulse duration, LE1B, LE2B, LEA1B, ty or LEADB HIGH 3.3 3.3 3.3 Setup time data before LE1B, LE2B, su | LEALB, or LEA2B 14 Md MM ns Hold time data after LE1B, LE2B, dt | LEAIB, or LEA2B 16 19 Ls At/AVv}) | Input Transition Rise or Fall 0 10 0 10 0 10 ns/v Note: 1, Unused control inputs must be held HIGH or LOW to prevent them from floating. 84 PS8131A 03/17/98(1) PERICOM Switching Characteristics Over Operating Range PI74ALVCT16260 12-Bit To 24-Bit Multiplexed D-Type Latch with 3-State Outputs From To Vcc = 2.5V + 0.2V Vcc = 2.7V Vcc = 3.3V + 0.3V Parameters Units (INPUT) | (OUTPUT) | Min @ Max. | Min] Max. | Min. Max. AorB BorA 1.2 6.0 5.1 1.2 49 tpp LE AorB 1.0 6.2 5.2 1.0 5.0 SEL A 1.2 75 6.6 1.1 5.6 ns teEN OE 1.0 7.2 6.4 1.0 5.4 AorB tors OE 1.7 5.9 5.0 13 4.6 Notes: 1. See test circuit and wave forms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. Operating Characteristics, T4 = 25C Voc = 2.5V 0.2V | Voc =3.3V + 0.3V Parameter Test Conditions Units Typical Cpp Power Dissipation | Outputs Enabled Cy = SOpF, 87 120 DF Capacitance Outputs Disabled | f= 10 MHz 80.5 18 85 PS8131A 03/17/98