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CY2907
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 (CY2907, CY2907I) or field-pro- Programming support available for all opportunities grammable (CY2907F & CY2907FI) device options Up to two configurable outputs Low-skew, low-jitter, high-accuracy outputs Power management (Power-Down, OE) Frequency select option Configurable 5V or 3.3V operation 8-pin or 14-pin SOIC packages Provides clocking requirements from a single device Meets critical industry standard timing requirements Supports low-power applications Up to 16 user-selectable frequencies Supports industry-standard design platforms Industry-standard packaging saves on board space
Selector Guide
Part Number CY2907 CY2907I CY2907F8 CY2907F14 CY2907F8I CY2907F14I Outputs 2 2 2 2 Input Frequency Range Output Frequency Range Specifics Factory Programmable Commercial Temperature Factory Programmable Industrial Temperature Field Programmable Commercial Temperature Field Programmable Industrial Temperature 10 MHz-25 MHz (external crystal) 500 kHz-130 MHz (5V) 500 kHz-100 MHz (3.3V) 1 MHz-30 MHz (reference clock) 10 MHz-25 MHz (external crystal) 500 kHz-100 MHz (5V) 500 kHz-80 MHz (3.3V) 1 MHz-30 MHz (reference clock) 10 MHz-25 MHz (external crystal) 500 kHz-100 MHz (5V) 500 kHz-80 MHz (3.3V) 1 MHz-30 MHz (reference clock) 10 MHz-25 MHz (external crystal) 500 kHz-90 MHz (5V) 500 kHz-66.66 MHz (3.3V) 1 MHz-30 MHz (reference clock)
Logic Block Diagram
OEA OER
Pin Configurations
Top View 14-Pin SOIC
S1 1 2 3 4 5 6 7 14 13 12 11 10 9 8 S0 REFCLK VDD CLKA OEA OER XTALOUT
PD XTALIN OSC. XTALOUT EPROM Table Configuration EPROM and Test Logic PLL Output Multiplexer and Dividers
REFCLK
S2 S3 VSS
CLKA
VSS PD XTALIN
8-Pin SOIC
S0 VSS XTALIN XTALOUT 1 2 3 4 8 7 6 5 REFCLK VDD CLKA S1
S0 S1 S2 S3
CyClocks is a trademark of Cypress Semiconductor Corporation.
Cypress Semiconductor Corporation
*
3901 North First Street
*
San Jose
*
CA 95134 * 408-943-2600 February 22, 2000, rev. *D
CY2907
Pin Summary
Pin Number Name S1 S2 S3 VSS VSS PD XTALIN
[1] [1, 2]
14-Pin SOIC 1 2 3 4 5 6 7 8 9 10 11 12 13 14
8-Pin SOIC 5 NA NA 2 NA NA 3 4 NA NA 6 7 8 1
Description Frequency Select (CLKA) (Internal pull-up resistor to VDD) Frequency Select (CLKA) (Internal pull-up resistor to VDD) Frequency Select (CLKA) (Internal pull-up resistor to VDD) Ground Ground Power-Down (active LOW) (Internal pull-up resistor to V DD) Reference Crystal Input Reference Crystal Feedback REFCLK Output Enable (active HIGH) (Internal pull-up resistor to VDD) CLKA Output Enable (active HIGH) (Internal pull-up resistor to VDD) Clock Output Voltage Supply Reference Clock Output (Default, can be driven by PLL if desired) Frequency Select (CLKA) (Internal pull-up resistor to VDD)
XTALOUT OER OEA CLKA VDD REFCLK S0
Notes: 1. For best accuracy, use a parallel-resonant crystal, CLOAD 17 pF. 2. Float XTALOUT pin if XTALIN is driven by reference clock (as opposed to crystal).
Functional Description
The CY2907 is a general-purpose Clock Generator designed for use in a wide variety of applications--from graphics to PC peripherals to disk drives. It generates selectable system clock frequencies from a single reference input (crystal or reference clock). The CY2907 is configured with an EPROM array, much like the other devices in the Cypress EPROM Programmable Clock Family, making it easily customizable for any application. Furthermore, the CY2907 is compatible with all industry-standard 9107 and 9108 clock synthesizers.
Cypress FTG Programmer
The Cypress Frequency Timing Generator (FTG) Programmers are portable programmers designed to custom program our family of EPROM Field Programmable Clock Devices. The FTG programmers connect to a PC serial port and allow users of CyClocks software to quickly and easily program any of the CY2291F, CY2292F, CY2071AF, and CY2907F devices. The ordering code for the Cypress FTG Programmer is CY3670.
Maximum Ratings
(Beyond which the useful life may be impaired. For user guidelines, not tested.) Supply Voltage.................................................. -0.5 to +7.0V Input Voltage............................................ -0.5V to VDD+0.5V Storage Temperature (Non-Condensing) ... -65C to +150C Max. Soldering Temperature (10 sec) ...................... +260C Junction Temperature ............................................... +150C Static Discharge Voltage ........................................... >2000V (per MIL-STD-883, Method 3015)
CyClocksTM Software
CyClocks is an easy-to-use software application that allows you to configure any one of the EPROM Programmable Clocks offered by Cypress. You may specify the input frequency, PLL and output frequencies, and different functional options. Please note the output frequency ranges in this data sheet when specifying them in CyClocks to ensure that you stay within the limits. You can download a copy of CyClocks free on the Cypress Semiconductor website at www.cypress.com. Consider using the CY2081, CY2291, or CY2292 for applications that require unrelated and multiple output frequencies. Consider using the CY2071A for applications that require more than one output clock.
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CY2907
Operating Conditions[3]
Parameter VDD TA CL fREF Description Supply Voltage, 5V Operation Supply Voltage, 3.3V Operation Commercial Operating Temperature, Ambient Industrial Operating Temperature, Ambient Max. Capacitive Load External Reference Crystal External Reference Clock[4, 5] 10.0 1.0 Min. 4.5 3.0 0 -40 Max. 5.5 3.6 70 85 15 25.0 30.0 Unit V V C C pF MHz MHz
Electrical Characteristics at 5.0V Commercial VDD = 4.5V to 5.5V, TA = 0C to +70C
Parameter VIH VIL VOH[4] VOL[4] IOH[4] IOL[4] IIH IIL IDD IDD IDD RPU[4]
[5]
Description High-level Input Voltage Low-level Input Voltage High-level Output Voltage Low-level Output Voltage Output High Current Output Low Current Input High Current Input Low Current Power Supply Current Power Supply Current Power Supply Current Pull-up Resistor
Test Conditions Except Crystal Inputs Except Crystal Inputs VDD = VDD Min. VDD = VDD Min. VOH = 2.0V VOL = 0.8V VIH = VDD VIL = 0V PD HIGH, CLKA = 50 MHz PD LOW, Logic Inputs LOW PD LOW, Logic Inputs HIGH VIN = VDD - 1.0 V IOH = -30 mA IOL = 10 mA CLKA CLKA
Min. 2.0
Max. 0.8
Unit V V V V mA mA A A A A A k
2.4 0.4 -35 22 -2 2 20 42 100 40 700
Electrical Characteristics at 3.3V Commercial VDD = 3.0V to 3.6V, TA = 0C to +70C
Parameter VIH VIL VOH[4] VOL[4] IOH[4] IOL[4] IIH IIL IDD IDD IDD RPU[4]
[5]
Description High-level Input Voltage Low-level Input Voltage High-level Output Voltage Low-level Output Voltage Output High Current Output Low Current Input High Current Input Low Current Power Supply Current Power Supply Current Power Supply Current Pull-up Resistor
Test Conditions Except Crystal Inputs Except Crystal Inputs CLKA, IOH = -5 mA CLKA, IOL = 6 mA VOH = 0.7*VDD VOL = 0.2*VDD VIH = VDD VIL = 0V PD HIGH, CLKA = 50 MHz PD LOW, Logic Inputs LOW PD LOW, Logic Inputs HIGH VIN = VDD - 0.5V
Min. 0.7*VDD
Max. 0.2*VDD
Unit V V V V mA mA A A A A A k
0.85*VDD 0.1*VDD -10 15 -2 2 10 40 40 12 900
Notes: 3. Electrical parameters are guaranteed with these operating conditions. 4. Guaranteed by design, not 100% tested in production 5. Load = max. typical configuration, f REF = 14.318 MHz. Specific configurations may vary. A close approximation of IDD can be derived by the following formula: I DD (mA) = VDD * (6.25 + (0.055*FREF ) + (0.0017*CLOAD*(FCLKA + REFCLK))). C LOAD is specified in pF and F is specified in MHz.
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CY2907
Electrical Characteristics at 5.0V Industrial VDD = 4.5V to 5.5V, TA = -40C to +85C
Parameter VIH VIL VOH[4] VOL[4] IOH[4] IOL[4] IIH IIL IDD IDD IDD RPU[4]
[5]
Description High-level Input Voltage Low-level Input Voltage High-level Output Voltage Low-level Output Voltage Output High Current Output Low Current Input High Current Input Low Current Power Supply Current Power Supply Current Power Supply Current Pull-up Resistor
Test Conditions Except Crystal Inputs Except Crystal Inputs VDD = VDD Min. IOH = -30 mA VDD = VDD Min. IOL = 10 mA VOH = 2.0V VOL = 0.8V VIH = VDD VIL = 0V PD HIGH, CLKA = 50 MHz PD LOW, Logic Inputs LOW PD LOW, Logic Inputs HIGH VIN = VDD - 1.0 V CLKA CLKA
Min. 2.0
Max.
Unit V
0.8 2.4 0.4 -45 20 -2 2 20 54 110 45 700
V V V mA mA A A A A A k
Electrical Characteristics at 3.3V Industrial VDD = 3.0V to 3.6V, TA = -40C to +85C
Parameter VIH VIL VOH[4] VOL[4] IOH[4] IOL[4] IIH IIL IDD IDD IDD RPU[4]
[5]
Description High-level Input Voltage Low-level Input Voltage High-level Output Voltage Low-level Output Voltage Output High Current Output Low Current Input High Current Input Low Current Power Supply Current Power Supply Current Power Supply Current Pull-up resistor
Test Conditions Except Crystal Inputs Except Crystal Inputs CLKA, IOH = -5 mA CLKA, IOL = 6 mA VOH = 0.7*VDD VOL = 0.2*VDD VIH = VDD VIL = 0V PD HIGH, CLKA = 50 MHz PD LOW, Logic Inputs LOW PD LOW, Logic Inputs HIGH VIN = VDD - 0.5V
Min. 0.7*VDD
Max. 0.2*VDD
Unit V V V V mA mA A A mA A A k
0.85*VDD 0.1*VDD -12 14 -2 2 10 50 50 15 900
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CY2907
Switching Characteristics at 5.0V Commercial[4]
Parameter tR tF tR tF tD FI FI FO tJIS tJIS tJIS tJAB tJAB tJAB tPU tFT CLKA Output[6] CLKA CLKA CLKA CLKA CLKA XTALIN XTALIN CLKA CLKA CLKA CLKA CLKA CLKA CLKA Description Output Rise Time 0.8V to 2.0V Output Fall Time 2.0V to 0.8V Output Rise Time 20% to 80% Output Fall Time 80% to 20% Duty Cycle Input Frequency Input Frequency Output Frequency Jitter (One Sigma) Jitter (One Sigma) Jitter (One Sigma) Jitter (Absolute) Jitter (Absolute) Jitter (Absolute) Power-up Time Transition Time 8 MHz to 66.6 MHz Test Conditions 15-pF Load 15-pF Load 15-pF Load 15-pF Load 15-pF Load at 1.4V Crystal Oscillator External Input Clock[7] CY2907, 15-pF Load CY2907F, 15-pF Load 20 MHz to 130 MHz 14 MHz to 20 MHz Less than 14 MHz 20 MHz to 130 MHz 14 MHz to 20 MHz Less than 14 MHz -250 -500 45.0 10 1 0.5 0.5 Min. Max. 1.40 1.00 3.5 2.5 55.0 25 30 130.0 100.0 150 200 1 + 250 + 500 3 18 13 Unit ns ns ns ns % MHz MHz MHz MHz ps ps % ps ps % ms ms
Switching Characteristics at 3.3V Commercial[4]
Parameter tR tF tD FI FI FO tJIS tJIS tJIS tJAB tJAB tJAB tPU tFT CLKA Output[6] CLKA CLKA CLKA XTALIN XTALIN CLKA CLKA CLKA CLKA CLKA CLKA CLKA Description Output Rise Time 20% to 80% Output Fall Time 80% to 20% Duty Cycle Input Frequency Input Frequency Output Frequency Jitter (One Sigma) Jitter (One Sigma) Jitter (One Sigma) Jitter (Absolute) Jitter (Absolute) Jitter (Absolute) Power-up Time Transition Time 8 MHz to 66.6 MHz Test Conditions 15-pF Load 15-pF Load 15-pF Load at 1.4V Crystal Oscillator External Input Clock[7] CY2907, 15-pF Load CY2907F, 15-pF Load 25 MHz to 100 MHz 14 MHz to 25 MHz Less than 14 MHz 25 MHz to 120 MHz 14 MHz to 25 MHz Less than 14 MHz -250 -500 40.0 10 1 0.5 0.5 Min. Max. 3.5 2.5 53.0 25 30 100.0 80.0 150 200 1 +250 +500 3 18 13 Unit ns ns % MHz MHz MHz MHz ps ps % ps ps % ms ms
Notes: 6. REFCLK output can also be configured to be driven by the PLL, in which case the above characteristics are valid. 7. Please refer to the application note "Crystal Oscillator Topics" when using an external reference clock as an input frequency source.
:
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CY2907
Switching Characteristics at 5.0V Industrial
Parameter tR tF tR tF tD FI FI FO tJIS tJIS tJIS tJAB tJAB tJAB tPU tFT CLKA Output[6] CLKA CLKA CLKA CLKA CLKA XTALIN XTALIN CLKA Description Output Rise Time 0.8V to 2.0V Output Fall Time 2.0V to 0.8V Output Rise Time 20% to 80% Output Fall Time 80% to 20% Duty Cycle Input Frequency Input Frequency Output Frequency Test Conditions 15-pF Load 15-pF Load 15-pF Load 15-pF Load 15-pF Load at 1.4V Crystal Oscillator External Input Clock
[7]
Min.
Max. 1.40 1.00 3.5 2.5
Unit ns ns ns ns % MHz MHz MHz MHz ps ps % ps ps % ms ms
45.0 10 1 0.5 0.5
55.0 25 30 100.0 90 150 200 1
CY2907, 15-pF Load CY2907F, 15-pF Load
CLKA CLKA CLKA CLKA CLKA CLKA
Jitter (One Sigma) Jitter (One Sigma) Jitter (One Sigma) Jitter (Absolute) Jitter (Absolute) Jitter (Absolute) Power-up Time Transition Time
20 MHz to 130 MHz 14 MHz to 20 MHz Less than 14 MHz 20 MHz to 130 MHz 14 MHz to 20 MHz Less than 14 MHz -250 -500
+ 250 + 500 3 18
8 MHz to 66.6 MHz
13
Switching Characteristics at 3.3V Industrial
Parameter tR tF tD FI FI FO tJIS tJIS tJIS tJAB tJAB tJAB tPU tFT CLKA Output[6] CLKA CLKA CLKA XTALIN XTALIN CLKA CLKA CLKA CLKA CLKA CLKA CLKA Description Output Rise Time 20% to 80% Output Fall Time 80% to 20% Duty Cycle Input Frequency Input Frequency Output Frequency Jitter (One Sigma) Jitter (One Sigma) Jitter (One Sigma) Jitter (Absolute) Jitter (Absolute) Jitter (Absolute) Power-up Time Transition Time 8 MHz to 66.6 MHz Test Conditions 15-pF Load 15-pF Load 15-pF Load at 1.4V Crystal Oscillator External Input Clock
[7]
Min.
Max. 3.5 2.5
Unit ns ns % MHz MHz MHz MHz ps ps % ps ps % ms ms
40.0 10 1 0.5 0.5
53.0 25 30 80.0 66.6 150 200 1
CY2907I, 15-pF Load CY2907FI, 15-pF Load 25 MHz to 100 MHz 14 MHz to 25 MHz Less than 14 MHz 25 MHz to 120 MHz 14 MHz to 25 MHz Less than 14 MHz
-250 -500
+250 +500 3 18 13
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CY2907
Switching Waveforms
Frequency Select Change (Transition Time)
SELECT
OLD SELECT Fold
NEW SELECT STABLE tFT Fnew
CLKA
2907-4 2907-3
Duty Cycle Timing
tD = t2 / t1 t1 t2 CLKA 1.4V
2907-5
All Outputs Rise/Fall Time
80% 20% CLKA tR tF
2907-6
Test Circuit
VDD VDD 0.1 F CLKA CLOAD OUTPUTS REFCLK CLOAD Note: All capacitors should be placed as close to each pin as possible.
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CY2907
Ordering Information
Ordering Code CY2907SC-xxx CY2907SL-xxx CY2907SI-xxx CY2907F8 CY2907F8I CY2907F14 CY2907F14I CY3670 Document #: 38-00505-D Package Name S8, S14 S8, S14 S8, S14 S8 S8 S14 S14 Package Type 8-pin or 14-pin SOIC 8-pin or 14-pin SOIC 8-pin or 14-pin SOIC 8-pin SOIC 8-pin SOIC 14-pin SOIC 14-pin SOIC Cypress FTG Programmer Operating Range 5.0V, Commercial, Factory Programmable 3.3V, Commercial, Factory Programmable 5.0V/3.3V, Industrial, Factory Programmable 5.0V/3.3V, Commercial, Field Programmable 5.0V/3.3V, Industrial, Field Programmable 5.0V/3.3V, Commercial, Field Programmable 5.0V/3.3V, Industrial, Field Programmable Custom Programming for Field Programmable Clocks
Package Characteristics
Package 8-pin SOIC 14-pin SOIC JA (C/W) 170 140 JC (C/W) 35 31 Transistor Court 5436 5436
Package Diagrams
8-Lead (150-Mil) SOIC S8
51-85066-A
8
CY2907
Package Diagrams (continued)
14-Lead (150-Mil) SOIC S14
51-85067-A
(c) Cypress Semiconductor Corporation, 2000. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a Cypress Semiconductor product. Nor does it convey or imply any license under patent or other rights. Cypress Semiconductor does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress Semiconductor products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress Semiconductor against all charges.

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