CF5029A Divide-by-512 Frequency Output, Crystal Oscillator Module IC OVERVIEW The CF5029A is crystal oscillator module IC with divide-by-512 frequency output. It employs a 16.777216MHz fundamental frequency crystal source oscillator to generate a 32.768kHz output crystal oscillator with excellent temperature characteristics. FEATURES ■ ■ ■ ■ ■ 2.25 to 3.6V operating supply voltage range 16.777216MHz reference source oscillator frequency Output frequency: oscillation frequency divided by 512 – 40 to 85°C operating temperature range Oscillation capacitors CG, CD built-in ■ ■ ■ ■ ■ ■ Standby function • High impedance in standby mode, oscillator stops Power-saving pull-up resistor built-in 2mA output drive capability (min. VDD = 2.25V) CMOS output duty level (1/2VDD) Molybdenum-gate CMOS process Chip form (CF5029A) APPLICATIONS ■ 32.768kHz output crystal oscillator modules ORDERING INFORMATION Device Package CF5029A–2 Chip form SEIKO NPC CORPORATION —1 CF5029A PAD LAYOUT (Unit: µm) (1000,1060) NPC VDD 7 NC 3 6 Q 4 5 NC 1 XT 2 XTN VSS HA5029 Y 8 INHN (0,0) X Chip size: 1.00 × 1.06mm Chip thickness: 220 ± 30µm PAD size: 100µm Chip base: VDD level PIN DESCRIPTION and PAD DIMENSIONS Pad dimensions [µm] No. Name I/O Description X Y 1 INHN I Output state control input. High impedance when LOW, oscillator stops. Power-saving pull-up resistor built-in. 155 785 2 XT I Oscillator input 155 597 3 XTN O Oscillator output 155 363 4 VSS – (–) ground 155 175 5 NC – No connection (leave open) 844 175 6 Q O Output. Source oscillator divided-by-512 frequency output 844 363 7 NC – No connection (leave open) 844 694 8 VDD – (+) supply voltage 844 882 Crystal connection pins. Crystal is connected between XT and XTN. BLOCK DIAGRAM VDD VSS XTN CG CD Rf XT 1 512 Q INHN SEIKO NPC CORPORATION —2 CF5029A ABSOLUTE MAXIMUM RATINGS Parameter Symbol Condition Rating Unit Supply voltage range VDD VSS −0.3 to VSS + 5.0 V Input voltage range VIN VSS − 0.3 to VDD + 0.3 V Output voltage range VOUT VSS − 0.3 to VDD + 0.3 V Storage temperature range TSTG −65 to +150 °C Chip form RECOMMENDED OPERATING CONDITIONS fO = 16.777216MHz unless otherwise noted. Rating Parameter Symbol Condition Unit min typ max Supply voltage VDD 2.25 – 3.6 V Input voltage VIN VSS – VDD V TOPR −40 +25 +85 °C Operating temperature Current consumption and Output waveform with NPC’s standard crystal C0 L1 C1 R1 [Ω] L1 [mH] C1 [fF] C0 [pF] 5.6 7.45 12.67 3.40 R1 ELECTRICAL CHARACTERISTICS DC Characteristics VDD = 2.25 to 3.6V, VSS = 0V, Ta = −40 to +85°C unless otherwise noted. Rating Parameter Symbol Condition Unit min typ max VDD = 2.25 to 2.75V – 0.24 0.6 mA VDD = 2.75 to 3.6V – 0.42 1 mA – – 10 µA Operating current consumption IDD Measurement cct 1, INHN = open or HIGH, CL = 15pF Standby current IST Measurement cct 1, INHN = LOW HIGH-level output voltage VOH Measurement cct 3, VDD = 2.25 to 3.6V, IOH = 2mA VDD – 0.4 VDD – 0.15 – V LOW-level output voltage VOL Measurement cct 3, VDD = 2.25 to 3.6V, IOL = 2mA – 0.15 0.4 V VOH = VDD – – 10 µA VOL = VSS – – –10 µA IZ Measurement cct 4, INHN = LOW HIGH-level input voltage VIH Measurement cct 5 0.7VDD – – V LOW-level input voltage VIL Measurement cct 5 – – 0.3VDD V INHN = VSS 0.4 – 4 MΩ INHN = 0.7VDD 40 – 200 kΩ 5 6 7 pF 5 6 7 pF Output leakage current INHN pull-up resistance RPU1 RPU2 Built-in capacitance CG CD Measurement cct 6 Design value. A monitor pattern on a wafer is tested. Ta = 25°C SEIKO NPC CORPORATION —3 CF5029A AC Characteristics VDD = 2.25 to 3.6V, VSS = 0V, Ta = −40 to +85°C unless otherwise noted. Rating Parameter Symbol Condition Unit min typ max Duty Measurement cct 1, CL = 15pF, VDD = 2.5V, 3.3V, Ta = 25°C 45 50 55 % Rise time tr Measurement cct 1, 0.1VDD to 0.9VDD, CL = 15pF – 0.2 1 µs Fall time Output duty cycle tf Measurement cct 1, 0.9VDD to 0.1VDD, CL = 15pF – 0.2 1 µs Output enable delay time1 tOE Measurement cct 2, VDD = 2.5V, 3.3V, Ta = 25°C – – 2 µs Output disable delay time tOD Measurement cct 2, VDD = 2.5V, 3.3V, Ta = 25°C – – 2 µs 1. Oscillator stop function is built-in. When INHN goes LOW, normal output stops. When INHN goes HIGH, normal output is not resumed until after the oscillator start-up time has elapsed. Timing chart 0.9VDD Q 0.9VDD DUTY measurement voltage (0.5V DD ) TW 0.1VDD 0.1VDD DUTY= TW/ T 100 (%) T tr tf Figure 1. Output switching waveform INHN VIH VIL tOD Q tOE Hi-Z Figure 2. Output disable/enable timing chart SEIKO NPC CORPORATION —4 CF5029A FUNCTIONAL DESCRIPTION Standby Function When INHN goes LOW, the device is in standby mode. The Q output becomes high impedance and the oscillator circuit stops. INHN Q Oscillator HIGH (or open) fO/512 Normal operation LOW High impedance Stopped Power-saving Pull-up Resistor The INHN pin pull-up resistance changes in response to the input level (HIGH or LOW). When INHN is tied LOW, the pull-up resistance becomes large, reducing the current consumed by the resistance. When INHN is open circuit, the pull-up resistance becomes small, decreasing the susceptibility to the effects of external noise. SEIKO NPC CORPORATION —5 CF5029A MEASUREMENT CIRCUITS Measurement cct 1 Measurement cct 4 Measurement parameter: IDD, IST, Duty, tr , tf Measurement parameter: IZ A IDD IST VDD VDD XT VDD X'tal A Q Q or VSS XTN INHN VSS IDD: Open IST: Short IZ INHN VSS CL = 15pF (Including probe capacitance) Note: The AC characteristics are observed with an oscilloscope on pin Q. X’tal: NPC’s standard crystal Measurement cct 5 Measurement cct 2 Measurement parameter: VIH, VIL Measurement parameter: tOE, tOD VDD XT VDD Pulse Generator XT X'tal Q Q XTN INHN VSS INHN VSS VIH V VIL < 16MHz HIGH-level: VDD , LOW-level: VSS Note: Observed with an oscilloscope on pin Q. Does not include the oscillator start time. VIH: Voltage in VSS to VDD transition that changes the output state. VIL: Voltage in VDD to VSS transition that changes the output state. INHN is an output state control pin. Note: X’tal: NPC’s standard crystal Measurement cct 6 Measurement cct 3 Measurement parameter: RPU1, RPU2 Measurement parameter: VOH, VOL VDD Pulse Generator IOL = 2mA VDD XT Q VSS VOH V VOL When measuring VOL: ON When measuring VOH: ON INHN VSS IOH = 2mA RPU1 = VIN V A IPU VDD IPU (VIN = 0V) RPU2 = VDD 0.7V DD (VIN = 0.7V DD) IPU < 16MHz HIGH-level: VDD , LOW-level: VSS Note: Q HIGH-level and LOW-level voltages VOH and VOL are measured with pulse input stopped. SEIKO NPC CORPORATION —6 CF5029A Please pay your attention to the following points at time of using the products shown in this document. The products shown in this document (hereinafter “Products”) are not intended to be used for the apparatus that exerts harmful influence on human lives due to the defects, failure or malfunction of the Products. Customers are requested to obtain prior written agreement for such use from SEIKO NPC CORPORATION (hereinafter “NPC”). Customers shall be solely responsible for, and indemnify and hold NPC free and harmless from, any and all claims, damages, losses, expenses or lawsuits, due to such use without such agreement. NPC reserves the right to change the specifications of the Products in order to improve the characteristic or reliability thereof. NPC makes no claim or warranty that the contents described in this document dose not infringe any intellectual property right or other similar right owned by third parties. Therefore, NPC shall not be responsible for such problems, even if the use is in accordance with the descriptions provided in this document. Any descriptions including applications, circuits, and the parameters of the Products in this document are for reference to use the Products, and shall not be guaranteed free from defect, inapplicability to the design for the mass-production products without further testing or modification. Customers are requested not to export or re-export, directly or indirectly, the Products to any country or any entity not in compliance with or in violation of the national export administration laws, treaties, orders and regulations. Customers are requested appropriately take steps to obtain required permissions or approvals from appropriate government agencies. SEIKO NPC CORPORATION 15-6, Nihombashi-kabutocho, Chuo-ku, Tokyo 103-0026, Japan Telephone: +81-3-6667-6601 Facsimile: +81-3-6667-6611 http://www.npc.co.jp/ Email: [email protected] NC0313BE 2006.04 SEIKO NPC CORPORATION —7