M62009L/P/FP Low Power 2 Output System Reset IC with External Input REJ03D0782-0100 Rev.1.00 Sep 14, 2005 Description As applications for microcomputers are increasing, a desire has arisen for a RAM backup function. Let us introduce Renesas new low power dissipation, high-performance system reset IC, which is suitable for such RAM backup. The M62009, which is a low power dissipation 2-output microcomputer system reset IC, is a 2-output system reset IC which provides for RAM backup in microcomputers, and reduces power dissipation by using the Bi-CMOS process. The M62009 considerably reduces the number of components in the reset circuit. The M62009 performs two-step detection of normal supply voltage and backup supply voltage required for backup mode. When the supply voltage is switched from normal supply voltage to backup supply voltage the interruption output, which is one of the two outputs, gives the interruption signal to a microcomputer, in this way, the microcomputer reduces power dissipation and enters in the backup mode. If the backup supply voltage goes lower than the voltage required for backup, the reset output (RESET output) which is different from the INT output gives the reset signal (forced reset) to the microcomputer. The interruption signal from the INT output recovers the microcomputer from the backup mode. To recover from reset, RESET output is canceled when the specified interval of time (delay time) elapses after the signal is given from the INT output. Features • Bi-CMOS process realizes a configuration of low current dissipating circuits. ICC = 7 µA (Typ, normal mode, VCC1 = VCC2 = 5.0 V) ICC = 5 µA (Typ, backup mode, VCC1 = 5.0 V) ICC = 1 µA (Typ, backup mode, VCC1 = 2.5 V) • Two-step detection of supply voltage VCC1 (RESET): VS1-1 = 4.0 V (Typ, increase of VCC1) VS1-2 = 2.0 V (Typ, decrease of VCC1) VCC2 (INT): Free setup • Two outputs (open drain type) Reset output (RESET): Forced reset signal output Interruption output (INT): Output of the signal for interruption processing (output of the switching signal for backup mode) • Three types of outline packages 8-pin plastic SIP (single in-line package) 8-pin plastic DIP (dual in-line package) 8-pin plastic SOP (mini flat package) • Output based on RAM backup mode (see the timing chart) Application • Prevention of errors in microcomputer system in electronic equipment that requires RAM backup, such as office, industrial, and home-use equipment. Rev.1.00 Sep 14, 2005 page 1 of 6 M62009L/P/FP Pin Arrangement M62009P M62009FP M62009L 8 NC V1 1 8 NC VCC2 2 7 VCC1 7 VCC1 INT 3 6 Cd 6 Cd 5 RESET GND 4 5 RESET (Top view) 4 GND NC: No Connection 3 INT Package: PRDP0008AA-A (8P4): P PRSP0008DA-A (8P2S-A): FP 2 VCC2 1 V1 (Top view) Package: (8P5): L Block Diagram VCC1 7 VS1-1 4.0V (Typ) detection VS1-2 2.0V (Typ) detection Bias circuit + Delay circuit – 5 RESET 6 Cd VCC2 2 V1 1 – 3 INT + VS2 1.28V (Typ) 4 GND Rev.1.00 Sep 14, 2005 page 2 of 6 M62009L/P/FP Absolute Maximum Ratings (Ta = 25°C, unless otherwise noted) Item Supply voltage Output sink current Power dissipation Symbol VCC Ratings 8 Unit V Isink Pd 5 800 mA mW Conditions 8-pin SIP 625 440 8-pin DIP 8-pin SOP Thermal derating Operating temperature Kθ Topr 4.4 –20 to +75 mW/°C °C Storage temperature Tstg –40 to +125 °C Ta ≥ 25°C Electrical Characteristics (Ta = 25°C, unless otherwise noted) Item Symbol Min Typ Max Unit Detection voltage VS1-1 VS1-2 3.8 1.85 4.0 2.00 4.2 2.15 V Reference voltage Hysteresis voltage VS2 ∆VS 1.23 — 1.28 87 1.33 — V mV Decrease of V1 VCC2 = Detection voltage of hysteresis voltage (Detection voltage = 4V setup) Circuit current ICC1 ICC2-1 — — 7 5 15 10 µA VCC1 = VCC2 = 5V VCC1 = 5V, VCC2 = 0V Delay time ICC2-2 td — — 1 50 3 — ms Output saturation voltage Reset output response time Vsat tRESET — — 0.2 30 0.4 — V µs VIN = 5V, IO = 4mA (NMOS) Time between VCC1 (when falling) = VS1-2 and output of RESET signal Interruption output reset time tINT — 100 — µs Time between VCC2 (when falling) = VS2 and output of INT signal Rev.1.00 Sep 14, 2005 page 3 of 6 Test Conditions Increase of VCC1 Decrease of VCC1 VCC1 = 2.5V, VCC2 = 0V Cd = 0.33µF M62009L/P/FP Operating Description VSH VSL VSH VSL VSH VSL VCC2 INT (1) (2) (1) (2) (1) VS1-1 VS1-1 VS1-2 VCC1 RESET (2) td VS1-2 td (3) (4) (3) (4) (1): VCC2 = VSH (increase of VCC2) INT output → Low (VSH = VSL + ∆VS) (2): VCC2 = VSL (decrease of VCC2) INT output → High (VSL = R 1 + R2 VS2) R2 (3): Delay time obtained from VS1-1. td = 50ms (Cd = 0.33µF): td ≈ 1.52 × 105 × C (s) RESET output: reset cancel (cancel) (4): VCC1 = VS1-2 (VCC1 decrease) RESET output: forced reset output (L reset) Figure 1 Operating Waveform Application Example Car Audio ACC detection ACC SW Regulator 5V VCC1 R1 R2 VCC2 V1 Cd Cd VDD detection RESET BACKUP detection INT M62009 PF Power fail VDD Power supply pin RESET Reset input INT Interrupt input Microcomputer Note: Interrupt detection VSL is set by resistance R1 between VCC2 and V1 and resistance R2 between R1 and V1. VSL = R 1 + R2 VS2 R2 Figure 2 Application Example Rev.1.00 Sep 14, 2005 page 4 of 6 M62009L/P/FP Package Dimensions 8P5 Plastic 8pin 340mil SIP EIAJ Package Code SIP8-P-340-2.54 Weight(g) 0.73 JEDEC Code — Lead Material Cu Alloy D A2 L A1 A E 1 8 e b b2 E1 c Symbol b1 A A1 A2 b b1 b2 c D E E1 e L JEITA Package Code RENESAS Code Previous Code MASS[Typ.] P-DIP8-6.3x8.84-2.54 PRDP0008AA-A 8P4 0.5g 5 1 4 c *1 E 8 e1 SEATING PLANE Dimension in Millimeters Min Nom Max 8.3 — — — — 1.2 — — 6.4 0.4 0.5 0.6 1.1 1.2 1.5 0.75 0.85 1.15 0.22 0.27 0.34 19.0 19.2 18.8 2.6 2.8 3.0 1.2 1.3 1.1 — — 2.54 — — 3.0 NOTE) 1. DIMENSIONS "*1" AND "*2" DO NOT INCLUDE MOLD FLASH. 2. DIMENSION "*3" DOES NOT INCLUDE TRIM OFFSET. *2 A A2 D Reference Symbol Nom Max 7.32 7.62 7.92 D 8.7 8.84 9.1 E 6.15 6.3 6.45 A1 e1 L Dimension in Millimeters Min A SEATING PLANE *3 b 3 A1 4.5 0.51 3.3 A2 *3 b 2 bp e bp 0.4 0.5 b2 0.9 1.0 1.3 b3 1.4 1.5 1.8 c 0.22 0.27 0.34 2.54 2.79 0° Rev.1.00 Sep 14, 2005 page 5 of 6 e 2.29 L 3.0 0.6 15° M62009L/P/FP JEITA Package Code RENESAS Code Previous Code MASS[Typ.] P-SOP8-4.4x5-1.27 PRSP0008DA-A 8P2S-A 0.07g E 5 *1 HE 8 F 1 NOTE) 1. DIMENSIONS "*1" AND "*2" DO NOT INCLUDE MOLD FLASH. 2. DIMENSION "*3" DOES NOT INCLUDE TRIM OFFSET. 4 Index mark c A2 *2 A1 D L A Reference Symbol *3 e Nom Max D 4.8 5.0 5.2 E 4.2 4.4 4.6 1.5 A2 A1 bp Dimension in Millimeters Min 0.05 A y 1.9 bp 0.35 0.4 c 0.13 0.15 Detail F 0° 0.2 10° HE 5.9 6.2 6.5 e 1.12 1.27 1.42 0.2 0.4 y L Rev.1.00 Sep 14, 2005 page 6 of 6 0.5 0.1 0.6 Sales Strategic Planning Div. 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