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Details, datasheet, quote on part number:PI74FCT16827TA
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Datasheet text preview:
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74FCT16827T/162827/162H827T PI74FCT16827T 20-BIT BUFFERS
PI74FCT162827T PI74FCT162H827T
Fast CMOS 20-Bit Buffers
Product Features:
Common Features: · PI74FCT16827T, PI74FCT162827T, and PI74FCT2H827T are high-speed, low power devices with high current drive · VCC = 5V ±10% · Hysteresis on all inputs · Packages available: 56-pin 240 mil wide plastic TSSOP (A) 56-pin 300 mil wide plastic SSOP (V) PI74FCT16827T Features: · High output drive: IOH = 32 mA; IOL = 64 mA · Power off disable outputs permit "live insertion" · Typical VOLP (Output Ground Bounce) < 1.0V at VCC = 5V, TA = 25°C PI74FCT162827T Features: · Balanced output drivers: ±24 mA · Reduced system switching noise · Typical VOLP (Output Ground Bounce) < 0.6V at VCC = 5V, TA = 25°C PI74FCT162H827T Features: · Bus Hold retains last active bus state during 3-state · Eliminates the need for external pull-up resistors
Product Description:
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 PI74FCT16827T, PI74FCT162827T, and PI74FCT162H827T are 20-bit wide bus drivers designed to provide buffering and highperformance bus interfacing for wide data/address paths or buses with parity. Two pair of nanded output enable controls allow the devices to be operated as two 10-bit buffers or as one 20-bit buffer. Signal pins are arranged in a flow-through organization for ease of layout and hysteresis is designed into all inputs to improve noise margin. The PI74FCT16827T output buffers are designed with a Power-Off disable function allowing "live insertion" of boards when the devices are used as backplane drives. The PI74FCT162827T has ±24 mA 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 PI74FCT162H827T 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
1OE1 1OE2
2OE1 2OE2
1 Y1
1A1
2A1
2 Y1
To 9 other channels
To 9 other channels
1
PS2041A 03/11/96
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74FCT16827T/162827/162H827T 20-BIT BUFFERS
Product Pin Configuration
Product Pin Description
1OE2 1A1 1A2
1OE1 1Y1 1Y2
1 2 3 4 5 6 7 8 9 10 11 12 56-PIN V56 13 A56 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29
GND 1Y3 1Y4 VCC 1Y5 1Y6
1Y7
GND
1A3 1A4
Pin Name Description xOEx Output Enable Inputs (Active LOW) (1) xAx Data Inputs xYx 3-State Outputs Note: 1. For the PI74FCT162H827T, these pins have "Bus Hold." All other pins are standard, outputs, or I/Os.
VCC
1A5 1A6 1A7
GND 1Y8 1Y9 1Y10 2Y1 2Y2
2Y3
GND 1A8 1A9 1A10 2A1 2A2
2A3
Truth Table(1)
Inputs Outputs
xOE1 L L H X 1.
xOE2 L L X H
xAx L H X X
xYx L H Z Z
GND 2Y4 2Y5 2Y6 VCC 2Y7 2Y8 GND 2Y9
2Y10 2OE1
GND
2A4 2A5 2A6
VCC
2A7 2A8
H = High Voltage Level L = Low Voltage Level X = Don't Care Z = High Impedance
GND
2A9 2A10 2OE2
2
PS2041A 03/11/96
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74FCT16827T/162827/162H827T 20-BIT BUFFERS
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 .... 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 = 5.0V ± 10%)
Parameters Description VIH VIL II H II H II H II H IIL IIL IIL IIL IBHH I BHL IOZH(5) IOZL(5) VIK IO S IO VH 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 (3-STATE OUTPUTS) 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 = 18 mA 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 0.7 140 100 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
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
PS2041A 03/11/96
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