IDT5V2305 2.5V TO 3.3V HIGH PERFORMANCE CLOCK BUFFER INDUSTRIAL TEMPERATURE RANGE IDT5V2305 2.5V TO 3.3V HIGH PERFORMANCE CLOCK BUFFER FEATURES: DESCRIPTION: • High performance 1:5 clock driver for general purpose applications • Operates up to 170MHz at VDD = 2.5V • Operates up to 200MHz at VDD = 3.3V • Pin-to-pin skew < 50ps • VDD range: 2.3V to 3.6V • Output enable glitch suppression Ω on-chip series dampening resistors • 25Ω • Available in TSSOP and VFQFPN packages The IDT5V2305 is a high performance, low skew clock buffer that operates up to 200MHz. One bank of five outputs provides low skew copies of CLK. Through the use of control pin G, the outputs of bank Y(0:4) can be placed in a low state regardless of CLK input. The device operates in 2.5V and 3.3V environments. The built-in output enable glitch suppression ensures a synchronized output enable sequence to distribute full period clock signals. The IDT5V2305 is characterized for operation from -40°C to +85°C. FUNCTIONAL BLOCK DIAGRAM 3 G 9 CONTROL LOGIC Y0 25Ω 5 Y1 25Ω 16 CLK 6 Y2 25Ω 11 Y3 25Ω 13 Y4 25Ω The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE SEPTEMBER 2003 1 c 2003 Integrated Device Technology, Inc. DSC 6177/11 IDT5V2305 2.5V TO 3.3V HIGH PERFORMANCE CLOCK BUFFER INDUSTRIAL TEMPERATURE RANGE PIN CONFIGURATION GND 1 CLK VDD 1 16 CLK 16 VDD 2 15 VDD Y0 3 14 GND 4 Y1 VDD 2 15 VDD VDD Y0 3 14 NC 13 Y4 NC 4 13 Y4 5 12 GND Y1 5 12 NC Y2 6 11 Y3 Y2 6 11 Y3 VDD 7 10 VDD VDD 7 10 NC GND 8 9 G GND 8 9 G VDD TSSOP TOP VIEW VFQFPN TOP VIEW CAPACITANCE(TA = +25°C, f = 1MHz, VIN = 0V) ABSOLUTE MAXIMUM RATINGS(1) Max Unit Parameter –0.5 to +4.6 V CIN VI Input Voltage(2) –0.5 to VDD +0.5 V VO Output Voltage(2) –0.5 to VDD +0.5 V IIK Input Clamp Current VI < 0 or VI > VDD ±50 mA IOK Output Clamp Current VO < 0 or VO > VDD ±50 mA IO Continuous Total Output Current VO < 0 to VDD ±50 mA Symbol Description VDD Power Supply Voltage TSTG Storage Temperature –65 to +150 Description Input Capacitance Min. Typ. Max. Unit — 2.5 — pF VI = 0V or VDD FUNCTION TABLE(1) Inputs °C NOTES: 1. Stresses greater than those listed under ABSOLUTE 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. 2. Not to exceed 4.6V. CLK Y(0:4) L X L H H H NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Don’t Care 2 Output G IDT5V2305 2.5V TO 3.3V HIGH PERFORMANCE CLOCK BUFFER INDUSTRIAL TEMPERATURE RANGE PIN DESCRIPTION TERMINAL Symbol I/O G I Y(0:4) CLK GND VDD O I PWR Description Output Enable Control for Y(0:4) Outputs. This output enable is active HIGH. If this pin is Logic HIGH, the Y(0:4) clock outputs will follow the input clock (CLK). If this pin is logic LOW, the Y(0:4) outputs will drive low independent of the state of CLK. Buffered Output Clocks Input Reference Frequency Ground DC Power Supply, 2.3V to 3.6V RECOMMENDED OPERATING RANGE Symbol VDD Description Internal Power Supply Voltage VIL Input Voltage LOW VIH Input Voltage HIGH VI IOH Input Voltage Output Current HIGH IOL Output Current LOW TA Ambient Operating Temperature Min. 2.3 VDD = 3V to 3.6V VDD = 2.3V to 2.7V VDD = 3V to 3.6V VDD = 2.3V to 2.7V Typ. 2.5 3.3 Max. Unit V 3.6 0.8 0.7 2 1.7 0 V V VDD -12 -6 12 6 +85 VDD = 3V to 3.6V VDD = 2.3V to 2.7V VDD = 3V to 3.6V VDD = 2.3V to 2.7V -40 V mA mA °C DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Symbol VIK IIN IDD Parameter Input Voltage Input Current Static Device Current(1) Test Conditions VDD = 3V, IIN = -18mA VI = 0V or VDD CLK = 0V or VDD, IO = 0mA, VDD = 3.3V Min. Typ. Max - 1.2 ±5 25 Unit V µA µA Typ.(1) Max Unit NOTE: 1. For IDD over frequency, see TEST CIRCUIT AND WAVEFORMS. DC ELECTRICAL CHARACTERISTICS - VDD = 3.3V ± 0.3V Symbol Parameter VOH HIGH level Output Voltage VOL LOW level Output Voltage IOH HIGH level Output Current IOL LOW level Output Current Test Conditions IOH = -100µA VDD = Min. to Max. VDD = 3V IOH = -12mA IOH = -6mA IOH = 100µA VDD = Min. to Max. VDD = 3V IOH = 12mA IOH = 6mA VO = 1V VDD = 3V VDD = 3.3V VO = 1.65V VDD = 3.6V VO = 3.135V VO = 1.95V VDD = 3V VDD = 3.3V VO = 1.65V VO = 0.4V VDD = 3.6V NOTE: 1. All typical values are at respective nominal VDD. 3 Min. VDD - 0.2 2.1 2.4 V 0.2 0.8 0.55 V -28 -36 mA -14 28 36 mA 14 IDT5V2305 2.5V TO 3.3V HIGH PERFORMANCE CLOCK BUFFER INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS - VDD = 2.5V ± 0.2V Symbol VOH Parameter HIGH level Output Voltage VOL LOW level Output Voltage IOH HIGH level Output Current IOL LOW level Output Current Test Conditions VDD = Min. to Max. IOH = -100µA VDD = 2.3V IOH = -6mA VDD = Min. to Max. IOH = 100µA VDD = 2.3V IOH = 6mA VO = 1V VDD = 2.3V VDD = 2.5V VO = 1.25V VDD = 2.7V VO = 2.375V VO = 1.2V VDD = 2.3V VDD = 2.5V VO = 1.25V VO = 0.3V VDD = 2.7V Min. VDD - 0.2 1.8 Typ.(1) Max Unit V 0.2 0.55 V -17 -25 mA -10 17 25 mA 10 NOTE: 1. All typical values are at respective nominal VDD. TIMING REQUIREMENTS OVER RECOMMENDED RANGE Symbol fCLK Parameter Clock Frequency Test Conditions VDD = 3V to 3.6V VDD = 2.3V to 2.7V 4 Min. 0 0 Typ. Max 200 170 Unit MHz IDT5V2305 2.5V TO 3.3V HIGH PERFORMANCE CLOCK BUFFER INDUSTRIAL TEMPERATURE RANGE SWITCHING CHARACTERISTICS OVER OPERATING RANGE VDD = 3.3V ± 0.3V(1) Symbol tPLH tPHL tSK(O)(2) tSK(P) tSK(PP) tR tF tSU tH Parameter CLK to Yx Output Skew, Yx to Yx Pulse Skew Part-to-Part Skew Rise Time Fall Time G before CLK↓ G after CLK↓ Test Conditions f = 0MHz to 200MHz, CL = 25pF VO = 0.4V to 2V VO = 2V to 0.4V V(THRESHOLD) = VDD/2 Min. 1.3 Typ.(1) 0.7 0.7 0.1 0.4 Max 2.6 Unit ns 50 300 500 2 2 ps ps ps V/ns V/ns ns Max 3.5 Unit ns 75 700 600 1.4 1.4 ps ps ps V/ns V/ns ns NOTES: 1. All typical values are at respective nominal VDD. 2. This specification is only valid for equal loading of all outputs. SWITCHING CHARACTERISTICS OVER OPERATING RANGE VDD = 2.5V ± 0.2V(1) Symbol tPLH tPHL tSK(O)(2) tSK(P) tSK(PP) tR tF tSU tH Parameter CLK to Yx Output Skew, Yx to Yx Pulse Skew Part-to-Part Skew Rise Time Fall Time G before CLK↓ G after CLK↓ Test Conditions f = 0MHz to 170MHz, CL = 25pF VO = 0.4V to 1.7V VO = 1.7V to 0.4V V(THRESHOLD) = VDD/2 NOTES: 1. All typical values are at respective nominal VDD. 2. This specification is only valid for equal loading of all outputs. 5 Min. 1.5 0.4 0.4 0.1 0.4 Typ.(1) IDT5V2305 2.5V TO 3.3V HIGH PERFORMANCE CLOCK BUFFER INDUSTRIAL TEMPERATURE RANGE OUTPUT ENABLE GLITCH SUPPRESSION CIRCUIT The purpose of the glitch suppression circuitry is to ensure the output enable sequence is synchronized with the clock input such that the output buffer will be enabled on the next full period of the input clock (negative edge triggered by the input clock). The G input must be stable one tEN - time prior to the falling edge of the CLK for predictable operation. CLK Gx tEN tDIS Yx G (tEN, tDIS) Relative to CLK↓ 6 IDT5V2305 2.5V TO 3.3V HIGH PERFORMANCE CLOCK BUFFER INDUSTRIAL TEMPERATURE RANGE TEST CIRCUITS AND WAVEFORMS FROM OUTPUT UNDER TEST 500Ω CL NOTES: 1. CL includes probe and jig capacitance. 2. All input pulses are supplied by generators having the following characteristics: PRR ≤200MHz; ZO = 50Ω; tR < 1.2ns; tF < 1.2ns. Test Load Circuit VDD CLK 50% VDD 0V tPLH tPHL VOH 1.7V or 2V Yx 0.4V 50% VDD 0.4V VOL tF tR Voltage Waveforms Propagation Delay Times VDD CLK 0V VOH Any Y 50% VDD VOL VOH 50% VDD Any Y VOL tSK(O) tSK(O) Output Skew VDD CLK 50% VDD 0V tPLH tPHL VOH Yx 50% VDD VOL tSK(P) = tPLH tPHL Pulse Skew 7 IDT5V2305 2.5V TO 3.3V HIGH PERFORMANCE CLOCK BUFFER INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION IDT XXXXX Device Type XX Package X Package CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054 I -40°C to +85°C (Industrial) PG NR Thin Shrink Small Outline Package Thermally Enhanced Plastic Very Fine Pitch Quad Flat No Lead Package 5V2305 2.5V to 3.3V High Performance Clock Buffer for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com 8 for Tech Support: [email protected] (408) 654-6459