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Cypress Semiconductor |
CY2077
High-accuracy EPROM Programmable
Single-PLL Clock Generator
Features
■ High-accuracy PLL with 12-bit multiplier and 10-bit divider
■ EPROM programmability
■ 3.3 V or 5 V operation
■ Operating frequency
❐ 390 kHz–133 MHz at 5 V
❐ 390 kHz–100 MHz at 3.3 V
■ Reference input from either a 10–30 MHz fundamental toned
crystal or a 1–75 MHz external clock
■ EPROM selectable TTL or CMOS duty cycle levels
■ Sixteen selectable post-divide options, using either PLL or
reference oscillator/external clock
■ Programmable PWR_DWN or OE pin, with asynchronous or
synchronous modes
■ Low jitter outputs typically
❐ 80 ps at 3.3 V/5 V
■ Controlled rise and fall times and output slew rate
■ Available in both commercial and industrial temperature ranges
■ Factory programmable device options
Logic Block Diagram
PWR_DWN
or OE
XTALOUT[1]
XTALIN
or
external clock
Q
10 bits
HIGH
ACCURACY
PLL
Charge
Pump
VCO
P
12 bits
Configuration
EPROM
MUX
/ 1, 2, 4, 8, 16, 32, 64, 128
CLKOUT
Note
1. When using an external clock source, leave XTALOUT floating.
Cypress Semiconductor Corporation • 198 Champion Court
Document Number: 38-07210 Rev. *G
• San Jose, CA 95134-1709 • 408-943-2600
Revised February 1, 2012
http://www.Datasheet4U.com
CY2077
Contents
Pinouts .............................................................................. 3
Functional Description ..................................................... 3
EPROM Configuration Block ........................................... 3
PLL Output Frequency ..................................................... 3
Power Management Features .......................................... 4
Absolute Maximum Ratings ............................................ 4
Operating Conditions for
Commercial Temperature Device ................................... 4
Electrical Characteristics................................................. 5
Output Clock Switching Characteristics Commercial
Over the Operating Range ............................................... 6
Operating Conditions for
Industrial Temperature Device ....................................... 7
Electrical Characteristics ................................................. 7
Output Clock Switching Characteristics Industrial
Over the Operating Range ............................................... 8
Switching Waveforms ..................................................... 9
Typical Rise/Fall Time Trends for CY2077 ................... 10
Typical Duty Cycle Trends for CY2077 ......................... 11
Typical Jitter Trends for CY2077 ................................... 12
Programming Procedures ............................................. 13
Ordering Information ..................................................... 13
Package Diagrams .......................................................... 14
Document History Page ................................................. 16
Sales, Solutions, and Legal Information ...................... 17
Worldwide Sales and Design Support ....................... 17
Products .................................................................... 17
PSoC Solutions ......................................................... 17
Document Number: 38-07210 Rev. *G
Page 2 of 17
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