CY2071A
Single-PLL General-Purpose
EPROM Programmable Clock Generator
Features
Single phase-locked loop architecture
EPROM programmability
Benefits
Generates a custom frequency from an external source
Easy customization and fast turnaround
Factory-programmable (CY2071A, CY2071AI) or field-
Programming support available for all opportunities
programmable (CY2071AF, CY2071AFI) device options
Up to three configurable outputs
Low-skew, low-jitter, high-accuracy outputs
Internal loop filter
Power management (OE)
Frequency select options
Configurable 5V or 3.3V operation
8-pin 150-mil SOIC package
i
Generates three related frequencies from a single device
Meets critical industry standard timing requirements
Alleviates the need for external components
Supports low-power applications
3 outputs with 2 user selectable frequencies
Supports industry standard design platforms
Industry-standard packaging saves on board space
Selector Guide
Part Number
CY2071A
CY2071AI
CY2071AF
CY2071AFI
Outputs
3
3
3
3
Input Frequency Range
10 MHz鈥?5 MHz (external crystal)
1 MHz鈥?0 MHz (reference clock)
10 MHz鈥?5 MHz (external crystal)
1 MHz鈥?0 MHz (reference clock)
10 MHz鈥?5 MHz (external crystal)
1 MHz鈥?0 MHz (reference clock)
10 MHz鈥?5 MHz (external crystal)
1 MHz鈥?0 MHz (reference clock)
Output Frequency Range
500 kHz鈥?30 MHz (5V)
500 kHz鈥?00 MHz (3.3V)
500 kHz鈥?00 MHz (5V)
500 kHz鈥?0 MHz (3.3V)
500 kHz鈥?00 MHz (5V)
500 kHz鈥?0 MHz (3.3V)
500 kHz鈥?0 MHz (5V)
500 kHz鈥?6.6 MHz (3.3V)
Specifics
Factory Programmable
Commercial Temperature
Factory Programmable
Industrial Temperature
Field Programmable
Commercial Temperature
Field Programmable
Industrial Temperature
Logic Block Diagram for CY2071A
XTALIN
XTALOUT
PLL
Block
REFERENCE
OSCILLATOR
CLKA
EPROM-
Configurable
Multiplexer
and Divide
Logic
CLKB
CLKC
OE / FS
Pin Configuration
8-pin SOIC
Top View
CLKA
GND
XTALIN
XTALOUT
1
2
3
4
8
7
6
5
OE/FS
VDD
CLKC
CLKB
Cypress Semiconductor Corporation
Document #: 38-07139 Rev. *A
鈥?/div>
3901 North First Street
鈥?/div>
San Jose
鈥?/div>
CA 95134 鈥?408-943-2600
Revised December 14, 2002
1
2
3
4
5
6
7
8
