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Part: PI74LCX16952V
Category:
Logic
Description: 16-Bit Non-inverting Registered Transceiver
Company: Pericom Semiconductor Corporation
Datasheet: Download PI74LCX16952V datasheet File size : 31 kB
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Datasheet text preview:
PI74LCX16952
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
Fast CMOS 3.3V 16-Bit 16-Bit Registered Transceivers
Product Features
· Functionally compatible with FCT3, LVT, and 74 series 16952 families of products · Tri-State outputs · 5V Tolerant inputs and outputs · 2.0V-3.6V VCC supply operation · Balanced sink and source output drives (24 mA) · Low ground bounce outputs · Power Down High Impedance inputs and outputs · Supports live insertion · ESD Protection exceeds 2000V, Human Body Model 200V, Machine Model · Packages available: 56-pin 240-mil wide plastic TSSOP (A) 56-pin 300-mil wide plastic SSOP (V)
Product Description
Pericom Semiconductor's PI74LCX series of logic circuits are produced using the Company's advanced 0.6 micron CMOS technology, achieving industry leading speed grades. The PI74LCX16952 is a 16-bit registered transceivers organized with two sets of eight D-type latches with separate input and output controls for each set. For data flow from A to B, for example, the Ato-B Enable (xCEAB) input must be LOW in order to enter data from xAx. The data present on the A port will be clocked on the B register when xCLKAB toggles from LOW-to-HIGH. The xOEAB control performs the output enable function on the B port. Control of data from B to A is similar, but uses the xCEAB, xCLKAB, and xOEAB inputs. By connecting the control pins of the two independent transceivers together, a full 16-bit operation can be achieved. The output buffers are designed with a Power-Off disable allowing "live insertion" of boards when used as backplane drivers. The PI74LCX16952 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.
Logic Block Diagram
1OEBA 2OEBA
1CEBA
2CEBA
1CLKBA 1OEAB 1CEAB
2CLKBA 2OEAB 2CEAB
1CLKAB
2CLKAB
C
1 A0 2 A0
C
1 B0
D C D
D C D
2B0
TO 7 OTHER CHANNELS
TO 7 OTHER CHANNELS
1
PS2096B
09/20/02
Product Pin Configuration
1OEAB 1CLKAB 1CEAB GND 1A0 1A1 VCC 1A2 1A3 1A4 GND 1A5 1A6 1A7 2A0 2A1 2A2 GND 2A3 2A4 2A5 VCC 2A6 2A7 GND 2CEAB 2CLKAB 2OEAB
1 2 3 4 5 6 7 8 9 10 11 56 55 54 53 52 51 50 49 48 47
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74LCX16952 Fast CMOS 3.3V 16-Bit Registered Transceivers
Product Pin Description
Pin Name xOEAB
XOEBA XCEAB
Truth Table(1,2)
Inputs xCEAB H X L L X xCLKAB X L X xOEAB L L L L H xAx X X L H X Outputs xBx B(3) B(3) L H High-Z
Description A-to-B Output Enable Input (Active LOW) B-to-A Output Enable Input (Active LOW) A-to-B Clock Enable Input (Active LOW) B-to-A Clock Enable Input (Active LOW) A-to-B Clock Input B-to-A Clock Input A-to-B Data Inputs or B-to-A 3-State Outputs B-to-A Data Inputs or B-to-A 3-State Outputs Ground Power
xCEBA
XCLKAB XCLKBA XAX XBX
GND VCC
46 12 45 56-Pin 13 44 V56 14 43 A56 15 42 16 41 17 40 18 39 19 20 21 22 23 24 25 26 27 28 38 37 36 35 34 33 32 31 30 29
1OEBA 1CLKBA 1CEBA GND 1B0 1B1 VCC 1B2 1B3 1B4 GND 1B5 1B6 1B7 2B0 2B1 2B2 GND 2B3 2B4 2B5 VCC 2B6 2B7 GND 2CEBA 2CLKBA 2OEBA
Notes: 1. H = High Voltage Level L = Low Voltage Level X = Don't Care or Irrelevant = LOW-to-HIGH Transition Z = High Impedance 2. A-to-B data flow shown. B-to-A flow control is the same, except using xCEBA, xCLKBA, and xOEBA. 3. Level of B before the indicated steady-state input conditions were established.
2
PS2096B
09/20/02
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74LCX16952 Fast CMOS 3.3V 16-Bit Registered Transceivers
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 t o absolute maximum rating conditions for extended periods may affect reliability.
Recommended Operating Conditions
Symbol
VCC VI VO IOH/IOL
Parameter
Supply Voltage Input Voltage Output Voltage Output Current HIGH or LOW State TRI-State VCC = 3.0V-3.6V VCC = 2.7V Operating Data Retention
Min.
2.0 1.5 0 0 0 -40 V = 0.8V-2.0V, VCC = 3.0V 0
Max.
3.6 3.6 5.5 VCC 5.5 ±24 ±12 +85 10
Units
V
mA °C ns/V
TA t/V
Free-Air Operating Temperature Input Edge Rate
3
PS2096B
09/20/02
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