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Part: PI74ALVCH162820A
Category:
Logic
-> Flip-Flops
-> CMOS/BiCMOS->LVC/ALVC/VCX Family->Low Voltage
Description: 10-Bit Flip-flop W/dual Output W/resistor
Company: Pericom Semiconductor Corporation
Datasheet: Download PI74ALVCH162820A datasheet File size : 313 kB
Request For quote: Find where to buy PI74ALVCH162820A
Datasheet text preview:
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74ALVCH162820
3.3V 10-Bit Flip-Flop with Dual Outputs and 3-State Outputs
Product Features
· · · · · · · · · PI74ALVCH162820 is designed for low voltage operation VCC = 2.3V to 3.6V Hysteresis on all inputs Typical VOLP (Output Ground Bounce) < 0.8V at VCC = 3.3V, TA = 25°C Typical VOHV (Output VOH Undershoot) < 2.0V at VCC = 3.3V, TA = 25°C Output ports have equivalent 26 series resistors, no external resistors are required. Bus Hold retains last active bus state during 3-state eliminates the need for external pullup resistors Industrial operation at 40°C to +85°C Packages available: 56-pin 240 mil wide plastic TSSOP (A) 56-pin 300 mil wide plastic SSOP (V)
Product Description
Pericom Semiconductor's PI74ALVCH series of logic circuits are produced in the Company's advanced 0.5 micron CMOS technology, achieving industry leading speed. The PI74ALVCH162820 is a 10-bit flip-flop designed for 2.3V to 3.3V VCC operation. The PI74ALVCH162820 is designed with edgetriggered D-type flip-flops. On the positive transition of clock (CLK) input, the device provides true data at the Q outputs. A buffered output-enable (OE) input can be used to place the ten outputs in either a normal logic state (HIGH or LOW level) or a highimpedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capacity to drive bus lines without the need for interface or pullup components. OE does not affect the internal operation of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state. The outputs, which are designed to sink up to 12mA, include 26 resistors to reduce overshoot and undershoot. The PI74ALVCH162820 has "Bus Hold" which retains the data input's last state whenever the data input goes to high-impedance preventing "floating" inputs and eliminating the need for pullup/ down resistors. Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
Logic Block Diagram
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Product Pin Description
Pin Name OE CLK Dx Qx GND VCC Description Output Enable Input (Active LOW) Clock Input (Active HIGH) Data Inputs 3-State Outputs Ground Power
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74ALVCH162820 3.3V 10-BIT FLIP-FLOP WITH DUAL OUTPUTS AND 3-STATE OUTPUTS
Truth Table(1)
Inputs OEn L L L H
Note: 1. H L X Z n = = = = = =
Outputs D H L X X Qn H L Q0 Z
CLK L X
Product Pin Configuration
1OE 1Q1 1Q 2 GND 2Q1 2Q 2 VCC 3Q1 3Q2 4Q1 GND 4Q2 5Q1 5Q2 6Q1 6Q2 7Q1 GND 7Q2 8Q1 8Q2 VCC 9Q1 9Q2 GND 10Q1 10Q2 2OE
1 2 3 4 5 6 7 8
56 55 54 53 52 51
CLK D1 NC GND D2 NC VCC D3 NC D4 GND NC D5 NC D6 NC D7 GND NC D8 NC VCC D9 NC GND D10 NC NC
High Signal Level Low Signal Level Irrelevant High Impedance LOW-to-HIGH Transition 1,2
50 56-PIN 49 V56 48 9 A56 47 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29
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PS8094A 03/26/97
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74ALVCH162820 3.3V 10-BIT FLIP-FLOP WITH DUAL OUTPUTS AND 3-STATE OUTPUTS
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 Input Voltage Range, VIN ...... 0.5V to VCC +0.5V Output Voltage Range, VOUT ..... 0.5V to VCC +0.5V DC Input Voltage ........... 0.5V to +5.0V DC Output Current .......... 100 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 = 3.3V ± 10%)
Parame te rs VCC VIH(3) VIL(3) VIN(3) VOUT(3) D e s cription Supply Voltage Input HIGH Voltage VCC = 2.3V to 2.7V VCC = 2.7V to 3.6V VCC = 2.3V to 2.7V VCC = 2.7V to 3.6V 0 0 IOH = - 100mA, VCC = Min. to Max. O utput HIGH Voltage VIH = 1.7V, IOH = - 6mA, VCC = 2.3V VIH = 1.7V, IOH = - 12mA, VCC = 2.3V VIH = 2.0V, IOH = - 12mA, VCC = 2.7V VIH = 2.0V, IOH = - 12mA, VCC = 3.0V VIH = 2.0V, IOH = - 24mA, VCC = 3.0V IOL = 100mA, VIL = Min. to Max. VOL O utput LO W Voltage VIL = 0.7V, IOL = 6mA, VCC = 2.3V VIL = 0.7V, IOL = 12mA, VCC = 2.3V VIL = 0.8V, IOL = 12mA, VCC = 2.7V VIL = 0.8V, IOL = 24mA, VCC = 3.0V O utput HIGH Current VCC = 2.3V VCC = 2.7V VCC = 3.0V VCC = 2.3V VCC = 2.7V VCC = 3.0V VCC - 0.2 2.0 1.7 2.2 2.4 2.0 0.2 0.4 0.7 0.4 0.55 - 12 - 12 - 24 12 12 24 mA V Te s t Conditions (1) M in. 2.3 1.7 2.0 0.7 0.8 VCC VCC Typ.(2) M ax. 3.6 Units
Input LO W Voltage Input Voltage O utput Voltage
VOH
IOH(3)
IOL(3)
O utput LO W Current
3
PS8094A 03/26/97
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