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Details, datasheet, quote on part number:PI74FCT162245T
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Datasheet text preview:
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74FCT16245T PI74FCT162245T PI74FCT162H245T
Fast CMOS 16-Bit Bidirectional Transceivers
Product Features
Common Features · PI74FCT16245T, PI74FCT162245T and PI74FCT162H245 are high-speed, low-power devices with high-current drive · VCC = 5V ± 10% · Hysteresis on all inputs · Packages available: 48-pin 240 mil wide plastic TSSOP (A48) 48-pin 173 mil wide plastic TVSOP (JEDEC TSSOP K48) 48-pin 300 mil wide plastic SSOP (V48) PI74FCT16245T Features · High output drive: IOH = 32mA; IOL = 64mA · Power off disable outputs permit "live insertion" · Typical VOLP (Output Ground Bounce) < 1.0V at VCC = 5V, TA = 25°C PI74FCT162245T Features · Balanced output drivers: ±24mA · Reduced system switching noise · Typical VOLP (Output Ground Bounce) < 0.6V at VCC = 5V, TA = 25°C PI74FCT162H245T Features · Bus Hold retains last active bus state during Three-State · Eliminates the need for external pull-up resistors
Product Description
Pericom Semiconductor's PI74FCT series of logic circuits are produced using the Company's advanced 0.6 micron CMOS technology, achieving industry leading speed grades. The PI74FCT16245T, PI74FCT162245T, and PI74FCT162H245T are 16-bit bidirectional transceivers designed for asynchronous two-way communication between data buses. The direction control input pin (xDIR) determines the direction of data flow through the bidirectional transceiver. The Direction and Ouput Enable controls are designed to operate these devices as either two independent 8-bit transceivers or one 16-bit transceiver. The output enable (OE) input, when HIGH, disables both A and B ports by placing them in HIGH Z condition. The PI74FCT16245T output buffers are designed with a PowerOff disable allowing "live insertion" of boards when used as backplane drivers. The PI74FCT162245T has ±24mA balanced output drivers. It is designed with current limiting resistors at its outputs to control the output edge rate resulting in lower ground bounce and undershoot. This eliminates the need for external terminating resistors for most interface applications. The PI74FCT162H245T has "Bus Hold" which retains the input's last state whenever the input goes to high-impedance preventing "floating" inputs and eliminating the need for pull-up/down resistors.
Logic Block Diagram
1DIR 1OE 1A0 1B0 1A1 1B1 1A2 1B2 1A3 1B3 1A4 1B4 1A5 1B5 1A6 1B6 1A7 1B7 2A7 2B7 2A6 2B6 2A5 2B5 2A4 2B4 2A3 2B3 2A2 2B2 2A1 2B1 2A0 2B0 2DIR 2OE
1
PS2032D
05/17/99
Product Pin Description
Pin Name xOE xDIR xAx xBx GND VCC Description 3-State Enable Inputs (Active LOW) Direction Control Input Side A Inputs or 3-State Outputs (1) Side B Inputs or 3-State Outputs (1) Ground Power
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74FCT16245T/162245T/162H245T Fast CMOS 16-Bit Bidirectional Tranceivers
Truth Table
Inputs(1) xOE xDIR L L L H H X Outputs(1) Bus B Data to Bus A Bus A Data to Bus B High Z State
Note: 1. For the PI74FCT162H245T, these pins have "Bus Hold." All other pins are standard, outputs, or I/Os.
Note: 1. H = High Voltage Level, X = Don't Care, L = Low Voltage Level, Z = High Impedance
Product Pin Configuration
48-Pin V48 A48 K48
2
PS2032D
05/17/99
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74FCT16245T/162245T/162H245T Fast CMOS 16-Bit Bidirectional Tranceivers
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 ........... 120mA 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 s e c t i o n s 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 = 5.0V ±10%)
Parameters VIH VIL IIH IIH IIH IIH IIL IIL IIL IIL IBHH IBHL IOZH(5) IOZL(5) VIK IOS IO VH Description Input HIGH Voltage Input LOW Voltage Input HIGH Current Input HIGH Current Input HIGH Current Input HIGH Current Input LOW Current Input LOW Current Input LOW Current Input LOW Current Bus Hold Sustain Current High Impedance Output Current Clamp Diode Voltage Short Circuit Current Output Drive Current Input Hysteresis Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level Standard Input, VCC = Max. Standard I/O, VCC = Max. Bus Hold Input(4), VCC = Max. Bus Hold I/O(4), VCC = Max. Standard Input, VCC = Min. Standard I/O, VCC = Min. Bus Hold Input(4), VCC = Min. Bus Hold I/O(4), VCC = Min. Bus Hold Input(4), VCC = Min. VCC = Max. VCC = Max. VCC = Min., IIN = 18mA VCC = Max.(3), VOUT = GND VCC = Max.(3), VOUT = 2.5V Min. 2.0 VIN = VCC VIN = VCC VIN = VCC VIN = VCC VIN = GND VIN = GND VIN = GND VIN = GND VIN = 2.0V VIN = 0.8V VOUT = 2.7V VOUT = 0.5V 0.8 1 1 ±100 ±100 1 1 ±100 ±100 50 +50 1 1 1.2 200 180 Typ.(2) Max. Units V V µA µA µA µA µA µA µA µA µA µA µA V mA mA mV
80 50
0.7 140 100
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 = 5.0V, +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. Pins with Bus Hold are identified in the pin description. 5. This specification does not apply to bi-directional functionalities with Bus Hold.
3
PS2032D
05/17/99
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