EM MICROELECTRONIC - MARIN SA EM6353 Reset Circuit with Fixed Delay Description Features The EM6353 is an ultra-low current reset circuit available in a large variety of configurations and very small packages for maximum flexibility in all end-applications up to 125°C and using power supplies between 1.5V and 5.5V. This circuit monitors the supply voltage of any electronic system, and generates the appropriate reset signal after a fixed reset timeout period. The threshold defines the minimum allowed voltage which guarantees the good functionality of the system. When VDD rises above VTH, the output remains active for an additional delay time. This allows the system to stabilize before getting fully active. The EM6353 features three output types: active-low pushpull, active-low open-drain and active-high push-pull. Small SC70-5L and SOT23-3L packages as well as ultra-low supply current of 2.9µA make the EM6353 an ideal choice for portable and battery-operated devices. ! Typical Application ! ! ! ! ! ! ! ! ! VDD * VDD RESET EM6353 ! MPU, DSP ! ! ! GND GND * REXT for open-drain version only ! ! Pin Configuration (top view) ! ! RESET 1 (RESET) 1 3 RESET 2 (RESET) VDD SOT23-3L SOT23-3L "alpha" bonding NC 1 2 NC 3 5 RESET (RESET) GND 4 RESET 5 (RESET) 4 GND " Active-high RESET push-pull No external components Immune to short negative VDD transients Guaranteed Reset valid down to 0.8V Threshold hysteresis: 2.1% of VTH Very small SOT23-3L and SC70-5L packages Mobile phones Set-top boxes Video, digital cameras, DVD players and recorders Modems Personal computers Switching hubs Copiers and fax Utility meters Automotive systems 2 "beta" bonding VDD ! 3 GND VDD Active-low RESET open-drain Applications RESET GND GND ±1.5% reset threshold accuracy 11 reset threshold voltages VTH: 4.63V, 4.4V, 3.08V, 2.93V, 2.63V, 2.2V, 1.8V, 1.66V, 1.57V, 1.38V, 1.31V 3 reset output options: " Active-low RESET push-pull " ! VDD 200ms reset timeout period (25ms on request) Ultra-low supply current of 2.9µA (VDD=3.3V) Operating temperature range: -40°C to +125°C Block Diagram VDD 3 NC Oscillator 2 VDD + 1 NC Voltage Reference SC70-5L - Reset Logic RESET RESET (compatible with SC70-3 by rotating 180°) GND Pin Description Function Pin SOT23-3L “beta” 1 2 3 - SOT23-3L “alpha” 3 1 2 - SC70-5L 4 Name GND RESET Active-low RESET output. RESET remains low for the reset timeout period after all reset conditions are deasserted and then goes high. RESET Active-high RESET output. RESET remains high for the reset timeout period after all reset conditions are deasserted and then goes low. 5 2 1,3 Ground VDD N.C. Copyright © 2006, EM Microelectronic-Marin SA 03/06 – rev.K Supply Voltage (5.5V max.) Not connected. Not internally connected. 1 www.emmicroelectronic.com EM6353 Ordering Information EM6353 B X 2SP3B - 2.9 + Delay (tPOR): B = 200ms A = 25ms RoHS Compliance: + = lead-free/green mold compliant [blank] = leaded Reset Output Type: X = Active-low /RES push-pull Y = Active-low /RES open-drain Z = Active-high RES push-pull Reset Threshold Voltage (VTH): 1.3 = 1.31V 2.6 = 2.63V 1.4 = 1.38V 2.9 = 2.93V 1.6 = 1.57V 3.1 = 3.08V 1.7 = 1.66V 4.4 = 4.40V 1.8 = 1.80V 4.6 = 4.63V 2.2 = 2.20V Package & Bonding: 1SP3B = SOT23-3, "alpha", Tape&Reel 3kpcs 2SP3B = SOT23-3, "beta", Tape&Reel 3kpcs SC5B = SC70-5, Tape&Reel 3kpcs Note: Subject to availability (see standard versions list below). Please give complete Part Number when ordering. All parts are offered in tape-and-reel only (3000 units). Standard Versions (Top Marking) Part Number EM6353BX1SP3B-1.3 EM6353BX1SP3B-2.6 EM6353BX1SP3B-2.6+ EM6353BX1SP3B-2.9 EM6353BX1SP3B-2.9+ EM6353BX1SP3B-4.4 EM6353BX1SP3B-4.4+ EM6353BX1SP3B-4.6 EM6353BX1SP3B-4.6+ EM6353BX2SP3B-1.3 EM6353BX2SP3B-1.8 EM6353BX2SP3B-1.8+ EM6353BX2SP3B-2.6 EM6353BX2SP3B-2.6+ EM6353BX2SP3B-2.9 EM6353BX2SP3B-2.9+ EM6353BX2SP3B-3.1 EM6353BX2SP3B-3.1+ EM6353BX2SP3B-4.4 EM6353BX2SP3B-4.4+ EM6353BX2SP3B-4.6 EM6353BX2SP3B-4.6+ EM6353BXSC5B-1.3 EM6353BXSC5B-1.8 EM6353BXSC5B-2.6 EM6353BXSC5B-2.6+ EM6353BXSC5B-2.9 EM6353BXSC5B-3.1 Top Marking Top Marking1) 2) with 4 Characters ALBA ALBG BLBG ALBH C1## BLBH ALBK C2## BLBK ALBL BLBL ALWA ALWE BLWE AW## ALWG BW## BLWG AR## ALWH BR## BLWH PC## ALWJ C5## BLWJ ALWK C8## BLWK ALWL BLWL ALWA ALWE AW## ALWG BW## BLWG AR## ALWH PC## ALWJ Part Number EM6353BXSC5B-3.1 EM6353BXSC5B-4.6 EM6353BY1SP3B-2.2 EM6353BY1SP3B-2.6 EM6353BY1SP3B-2.9 EM6353BY1SP3B-2.9+ EM6353BY1SP3B-3.1 EM6353BY1SP3B-4.4 EM6353BY1SP3B-4.6 EM6353BY2SP3B-2.6 EM6353BY2SP3B-2.6+ EM6353BY2SP3B-2.9 EM6353BY2SP3B-2.9+ EM6353BY2SP3B-3.1 EM6353BY2SP3B-3.1+ EM6353BY2SP3B-4.4 EM6353BY2SP3B-4.6 EM6353BY2SP3B-4.6+ EM6353BYSC5B-2.9 EM6353BYSC5B-2.9+ EM6353BYSC5B-4.4 EM6353BZ2SP3B-2.9 EM6353BZ2SP3B-2.9+ EM6353BZ2SP3B-3.1 EM6353BZ2SP3B-3.1+ EM6353BZ2SP3B-4.6 EM6353BZ2SP3B-4.6+ Top Marking Top Marking1) 2) with 4 Characters C5## BLWJ ALWL ALBS ALBT AS## ALBU BS## BLBU ALBV ALBW ALBX ALWT C9## BLWT ALWU C7## BLWU ALWV BLWV ALWW ALWX BLWX ALWU C7## BLWU ALWW AV## ALW6 BV## BLW6 ALW7 BLW7 ALW9 CB## BLW9 1) Top marking is the standard from 2006. No bottom marking exists. Where ## refers to the lot number (EM internal reference only) 2) Top marking with 4 characters is standard from 2003. For lead-free/green mold (RoHS) parts, the first letter of top marking with 4 characters begins with letter “B” instead of letter “A”. Bottom marking indicates the lot number. Copyright © 2006, EM Microelectronic-Marin SA 03/06 – rev.K 2 www.emmicroelectronic.com EM6353 Standard Versions (samples) Part Number Part Number EM6353BX1SP3B-2.6+ EM6353BXSC5B-2.9 EM6353BX1SP3B-2.9+ EM6353BXSC5B-3.1 EM6353BX1SP3B-4.4+ EM6353BY1SP3B-2.9+ EM6353BX1SP3B-4.6+ EM6353BY2SP3B-2.9+ EM6353BX2SP3B-1.8+ EM6353BY2SP3B-3.1+ EM6353BX2SP3B-2.6+ EM6353BY2SP3B-4.6+ EM6353BX2SP3B-2.9+ EM6353BYSC5B-2.9+ EM6353BX2SP3B-3.1+ EM6353BZ2SP3B-2.9+ EM6353BX2SP3B-4.4+ EM6353BZ2SP3B-3.1+ EM6353BX2SP3B-4.6+ EM6353BZ2SP3B-4.6 Sample stock is generally held on standard versions only. Non standard versions have a 30,000 pieces minimum order quantity. Please contact factory for other versions not shown here and for availability of non standard versions. Handling Procedures Absolute Maximum Ratings Parameter Symbol Conditions Voltage at VDD to GND Minimum voltage at any signal pin Maximum voltage at any signal pin VDD VMIN VMAX -0.3V to +6V GND - 0.3V VDD + 0.3V Electrostatic discharge max. to MIL-STD-883C method 3015.7 with ref. to VSS VESD 2000V Max. soldering conditions Storage Temperature Range TMAX TSTG 250°C x 10s -65°C to +150°C This device has built-in protection against high static voltages or electric fields; however, anti-static precautions must be taken as for any other CMOS component. Unless otherwise specified, proper operation can only occur when all terminal voltages are kept within the voltage range. Unused inputs must always be tied to a defined logic voltage level. Operating Conditions Parameter Supply voltage (note 1) Operating Temperature Stresses above these listed maximum ratings may cause permanent damage to the device. Exposure beyond specified operating conditions may affect device reliability or cause malfunction. Symbol Min Max Unit VDD 0.8 5.5 V TA -40 +125 °C Electrical Characteristics Unless otherwise specified: VDD= 0.8V to 5.5V, TA=-40°C to +125°C (note 1). Parameter Symbol Conditions Min +25°C -40°C to +125°C +25°C -40°C to +125°C +25°C -40°C to +125°C +25°C -40°C to +85°C -40°C to +125°C +25°C -40°C to +85°C -40°C to +125°C +25°C -40°C to +85°C -40°C to +125°C +25°C -40°C to +85°C -40°C to +125°C +25°C -40°C to +85°C -40°C to +125°C +25°C -40°C to +85°C -40°C to +125°C +25°C -40°C to +85°C 1.290 1.245 1.221 1.359 1.311 1.286 1.546 1.492 1.463 1.635 1.577 1.547 1.773 1.710 1.678 2.167 2.090 2.050 2.591 2.499 VDD=1.5V Supply current (note 2) IDD VDD=3.3V VDD=5.0V Threshold voltage (note 3) VTH EM6353 – 1.3 EM6353 – 1.4 EM6353 – 1.6 EM6353 – 1.7 EM6353 – 1.8 EM6353 – 2.2 EM6353 – 2.6 Copyright © 2006, EM Microelectronic-Marin SA 03/06 – rev.K 3 Typ 2.3 2.9 3.4 1.31 1.38 1.57 1.66 1.80 2.20 2.63 Max 4.6 7 5.5 8.3 6.3 9.6 1.330 1.382 1.387 1.401 1.456 1.461 1.594 1.656 1.663 1.685 1.751 1.758 1.827 1.899 1.906 2.233 2.321 2.330 2.669 2.775 Unit µA V www.emmicroelectronic.com EM6353 EM6353 – 2.9 EM6353 – 3.1 EM6353 – 4.4 EM6353 – 4.6 Threshold hysteresis Note 1: Note 3: VHYS -40°C to +125°C +25°C -40°C to +85°C -40°C to +125°C +25°C -40°C to +85°C -40°C to +125°C +25°C -40°C to +85°C -40°C to +125°C +25°C -40°C to +85°C -40°C to +125°C TA=+25°C 2.451 2.886 2.784 2.731 3.034 2.926 2.871 4.334 4.180 4.101 4.561 4.399 4.315 - 2.93 3.08 4.40 4.63 2.1%•VTH 2.785 2.974 3.091 3.103 3.126 3.249 3.262 4.466 4.642 4.660 4.699 4.885 4.903 - V Production tested at +25°C only. Over temperature limits are guaranteed by design, not production tested. VDD min=0.9V for active-high versions (EM6353_Z). Threshold voltage is specified for VDD falling. Copyright © 2006, EM Microelectronic-Marin SA 03/06 – rev.K 4 www.emmicroelectronic.com EM6353 Electrical Characteristics (continued) Unless otherwise specified: VDD= 0.8V to 5.5V, TA=-40°C to +125°C (note 1). Parameter Symbol Reset timeout period Propagation delay time VDD to RESET (RESET) delay Open-drain RESET output Voltage tPOR VOL Push-pull RESET / RESET Output voltage VOH ILEAK Min Typ Max EM6353B 155 200 224 EM6353A 19.4 25 28 2 130 255 VDD drops from VTH (typ)+0.2V to VTH (typ)-0.2V (note 2). TA= +25°C tP VOL Output leakage current Conditions VDD from 0V to VTH (typ)+15% (note 2 and 4). TA= +25°C VDD>1V IOL=100µA - - 0.3 VDD>2.5V IOL=1.5mA - - 0.3 VDD>5V IOL=3mA - - 0.3 VDD>1V IOL=100µA - - 0.3 VDD>2.5V IOL=1.5mA - - 0.3 VDD>5V IOL=3mA - - 0.35 VDD>1V IOH=-30µA 0.8 - - VDD>2.5V IOH=-1.5mA 2 - - VDD>5V IOH=-3mA 4 - - - - 0.5 Only for EM6353_Y (open-drain) Unit ms µs V V µA Note 1: Production tested at +25°C only. Over temperature limits are guaranteed by design, not production tested. VDD min=0.9V for active-high versions (EM6353_Z). Note 2: Note 4: RESET (RESET) open. Standard version is EM6353B (tPOR =200ms), available at all times. EM6353A (tPOR =25ms) is available by mask option and upon minimum order quantity. Please contact EM sales. Timing Waveforms tSEN VDD VTH Overdrive VHYS 0.8V t logic "1" tPOR RESET tP logic "0" t logic "1" RESET RESET logic "0" t Note 6: tSEN = Maximum Transient Duration. Please refer to figure on next page. Note 7: Overdrive = VTH- -VDD. Please refer to figure on next page. Copyright © 2006, EM Microelectronic-Marin SA 03/06 – rev.K 5 www.emmicroelectronic.com EM6353 Typical Operating Characteristics (Typical values are at TA=+25°C unless otherwise noted, RESET or RESET open.) 7 300 VDD 3 . 3 V 6 250 5 [ uA ] 200 VDD 5 . 0 V [ us ] 4 150 3 VDD 1. 5 V 2 100 50 1 0 -50 -25 0 25 50 75 0 -50 -25 100 125 0 25 [ °C ] 50 75 100 125 [ °C ] IDD vs. Temperature Propagation Time tP vs. Temperature 200% 400 175% 350 tPOR (°C) tPOR (25°C) 150% 300 125% [ us ] 100% 250 Reset occurs above this line 200 75% 150 50% 100 25% 50 0 0% -50 -25 0 25 50 75 1 100 125 10 [ °C ] 100 1000 [ mV ] Reset Timeout Period tPOR vs. Temperature (normalized with respect to tPOR 25°C) Maximum Transient Duration tSEN vs. Overdrive VTH-VDD 8% 6% 4% 2% 0% -2% -4% -6% -8% -50 -25 0 25 50 75 100 125 [°C] Threshold Voltage Variation vs. Temperature (normalized) Copyright © 2006, EM Microelectronic-Marin SA 03/06 – rev.K 6 www.emmicroelectronic.com EM6353 Package Information D E SOT23-3L C A1 A2 A B L H e SYMBOL A A1 A2 B C D E e e1 H L e1 MIN 0.89 0.013 0.95 0.37 0.085 2.80 1.20 1.78 2.10 TYP MAX 1.04 1.12 0.10 0.97 1.00 0.51 0.12 0.18 2.95 3.04 1.32 1.40 0.95 1.90 2.05 2.40 2.64 0.55 Dimensions are in mm SC70-5L D L HE E PIN 1 e e b Q1 A2 A A1 c SYMBOL e D b E HE Q1 A2 A1 A c L MIN MAX 0.65 BSC 1.80 2.20 0.15 0.30 1.15 1.35 1.80 2.40 0.10 0.40 0.80 1.00 0.00 0.10 0.80 1.10 0.10 0.18 0.10 0.30 NOTE: # All dimensions are in millimeters # Dimensions are inclusive of plating # Dimensions are exclusive of mold flash & metal burr # All specifications comply to EIAJ SC70 Traceability for small packages Due to the limited space on the package surface, the bottom marking contains a limited number of characters that provide only partial information for lot traceability. Full information for complete traceability is however provided on the packing labels of the product at delivery from EM. It is highly recommended that the customer insures full lot traceability of EM product in his final product. EM Microelectronic-Marin SA (EM) makes no warranty for the use of its products, other than those expressly contained in the Company's standard warranty which is detailed in EM's General Terms of Sale located on the Company's web site. EM assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual property of EM are granted in connection with the sale of EM products, expressly or by implications. EM's products are not authorized for use as components in life support devices or systems. Product qualification is performed according to internal EM quality standards for industrial products. For any special requirement (eg. automotive grade) please contact EM Microelectronic-Marin S.A. Copyright © 2006, EM Microelectronic-Marin SA 03/06 – rev.K 7 www.emmicroelectronic.com