M62050P RENESAS | Alldatasheet

Document overview

  • Manufacturer or author: Provided By www.digicamel.com(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 12

Technical content

Features

  • Watchdog timer (supervisor for two system voltages)
  • Power-on reset timer
  • Low current consumption: 0.6 mA (Typ, VCC = 3 V)
  • Wide supply voltage range: VCC(max) = 7 V Application
  • Supervisor for microcontroller systems Recommended Operating Condition
  • Recommended supply voltage: 3 V Block Diagram WD RST1 RST2 TC GND Ct1 VCC ADJ S RQ S RQ R S Q

REJ03D0786-0200 Rev.2.00 Jun 15, 2007 Page 2 of 11 Pin Arrangement M62050P M62050FP ADJ Ct1 VCC RST2 WD GND RST1 TC (Top view) Outline: PRDP0008AA-A (8P4) [P] PRSP0008DE-C [FP] (recommend) PRSP0008DA-A (8P2S-A) [FP] (not recommend for new design) Pin Description Pin No. Symbol Functional Description

1 WD Input for watchdog timer

2 TC Time set for reset timer and watchdog timer

3 RST1 Pin that outputs reset signal when abnormal signal is input to WD pin

4 GND GND

5 Ct1 Capacitor installation pin for delay time setting

6 V CC Power supply

7 RST2 Pin that outputs reset signal when power supply voltage becomes abnormal

8 ADJ Selection between two detection voltages

(Ta = 25°C, unless otherwise noted) Item Symbol Rating Unit Conditions Supply voltage V CC 7 V Input voltage V IN –0.3 to +7 V Output voltage V OUT 15 V Output current I OUT 10 mA 625 8-pin DIP Power dissipation Pd 440 mW 8-pin SOP 6.25 8-pin DIP Thermal derating K θ 4.4 mW/°C Ta ≥ 25°C 8-pin SOP Operating temperature Topr –20 to +75 °C Storage temperature Tstg –55 to +125 °C

REJ03D0786-0200 Rev.2.00 Jun 15, 2007 Page 3 of 11

Electrical Characteristics

(Ta = –25°C, VCC = 3 V, unless otherwise noted) DC Characteristics Test Conditions Item Symbol Min Typ Max Unit Pin WD input current I WD 60 140 250 µA WD V IN = 3V VIH 1.5 — 3.0 WD input voltage VIL –0.3 — 0.8 V WD TC output current I OUT — — –1 µA TC V IN = 1.0V TC input current I IN — 2.5 3.5 mA TC V OUT = 2.6V VTH3(H) — 2.4 — Watchdog timer threshold voltage VTH3(L) — 1.2 — V TC Output voltage V OL — 0.2 0.5 V RST1 IOUT = 1mA Output leakage current Ileak — — 5.0 µA RST2 V OUT = 3V VTH1(H) 2.13 2.25 2.42 V CCL→H VTH1(L) 2.10 2.20 2.30 V VCCH→L VCC detection voltage (1) ∆VTH1 30 50 120 mV VCC(1) ∆VTH1 = VTH1(H) – VTH1(L) VTH2(H) 2.43 2.55 2.72 V CCL→H VTH2(L) 2.40 2.50 2.60 V VCCH→L VCC detection voltage (2) ∆VTH2 30 50 120 mV VCC(2) ∆VTH2 = VTH2(H) – VTH2(L) VTH4(H) 2.23 2.35 2.52 V CCL→H VTH4(L) 2.20 2.30 2.40 V VCCH→L VCC detection voltage (4) ∆VTH4 30 50 120 mV VCC(4) ∆VTH4 = VTH4(H) – VTH4(L) RST1 ON voltage RST1 — — 0.5 V RST1 VCC = 1.2V, RL = 4.7kΩ RST2 ON voltage RST2 — — 0.5 V RST2 V CC = 1.2V, RL = 4.7kΩ Circuit current I CC — 600 950 µA V CC AC Characteristics Test Conditions Item Symbol Min Typ Max Unit Pin C × 1.1 × R1 s Watchdog timer t WD 0.5 1.1 1.7 ms RST1 C = 0.1µF, R1 = 10kΩ C × 0.5 × R1 s Reset timer (1) t RST(1) 0.2 0.5 1.1 ms RST1 C = 0.1µF, R1 = 10kΩ 830 × C s Reset timer (2) t RST(2) 40 83 220 µs RST1 C = 0.1µF, R1 = 10kΩ 290 × 103 × Cd * s Reset timer delay time t dRST(1) 140 290 790 µs RST1 Cd = 0.001µF Input pulse width t WDIN 3 — — µs WD td1 — 4 — RST1 Propagation delay td2 — 2 — µs RST2 Note: * Cd: Delay capacitor connected with Ct1 pin

REJ03D0786-0200 Rev.2.00 Jun 15, 2007 Page 4 of 11 Operating Description Timing Chart 1 (When the delay capacitor is not connected with Ct1 pin) tRST(2) VCC VTH2(H) VTH1(H) VTH2(L) VTH1(L)VTH1 VTH3(H) Power ON reset timer VTH3(L) TC WD RST1 RST2 tRST(1) tWD The VCC rises up to 0.8 V, then RST1 and RST2 generates low output, and rising up to 2.2 V(VTH1(H)), charge of C1 begins. The V CC rises up to 2.5 V(VTH2(H)), then RST2 generates high. The voltage at TC pin is 1.2 V(VTH3(L) = 2/5 VCC), then RST2 generates high, when 2.4 V(VTH3(H) = 4/5 VCC), C1 is discharged and RST1 generates low. The voltage at TC pin falls to 1.2 V, then RST1 generates high unless normal clock signal is entered to WD pin, RST1 repeats this operation. Before the voltage at TC pin reaches 4 V, if normal clock signal is entered to WD pin, low RST1 is canceled. In the case of entrance of abnormal signal input, as the waveform of TC pin repeats charge and discharge of RST1 alternatively, the RST1 repeats high and low output operation. The V CC falls to 2.5 V(VTH2(L)), then RST2 generates low, this detective voltage has a 50 mV hysteresis. When VCC goes down to 2.2 V(VTH1(L)), the status of TC pin is switched to discharge. When the potentional at TC pin is detected being VTH3(H) or VTH3(L), the status of RST1 becomes "low". (This detective voltage has a 50 mV hysteresis.) Terminology tRST(1) : tWD : tRST(2) : tdRST(1) : Time required for TC pin potential to rise from 0 V VTH3(L) when VCC is being applied. Time required for TC pin potential to rise from VTH3(L) to VTH3(H). Time required for TC pin potential to go down from VTH3(H) to VTH3(L). Time required for delay of charge with TC pin when VCC is impressed by connecting capacitor with Ct1 pin between GND. (1): (2): (3), (4): (5): (6), (7): (8), (9): (10): (11): Figure 1 Timing Chart 1

REJ03D0786-0200 Rev.2.00 Jun 15, 2007 Page 5 of 11 Timing Chart 2 (When the delay capacitor is connected with Ct1 pin) The following delay time will enter by the time the charge of TC pin starts when the capacitor Cd is connected with Ct1 pin. t dRST(1) = 290 × 103 × Cd (2)(1) VCC VTH1(H) VTH3(H) VTH3(L) TC WD RST1 tdRST(1) Power ON reset timer Figure 2 Timing Chart 2

REJ03D0786-0200 Rev.2.00 Jun 15, 2007 Page 8 of 11 Application Example Clock MCU/MPU RST1 (RESET) RST2 (HOLD) 123456 7 8 M62050 VDD Figure 7 Application Example

REJ03D0786-0200 Rev.2.00 Jun 15, 2007 Page 9 of 11 Typical Characteristics Detection Voltage vs. Ambient Temperature Ambient Temperature Ta (°C) Detection Voltage VTH (V) 2.6 2.0 –50 0– 2 52 5 5 01 0 0 75 125 (H) (L) (L) (L) (H) (H) 2.1 2.2 2.3 2.5 2.4 VTH2 (8 pin = open) VTH1 (8 pin = open) VTH4 (8 pin = VCC) Circuit Current ICC (mA) Circuit Current vs. Supply Voltage Supply Voltage VCC (V) 02 5 413 6 7 Ta = 25°C Ta = 125°C Ta = –40°C

REJ03D0786-0200 Rev.2.00 Jun 15, 2007 Page 10 of 11 Package Dimensions INCLUDE TRIM OFFSET. DIMENSION "*3" DOES NOT NOTE) DO NOT INCLUDE MOLD FLASH. SEATING PLANE c D e E bp LA A1 A2 2.792.29 4.5 15° e 2.54 c L 3.0 0.51 1.4 1.5 1.8 A E 6.15 6.3 6.45 D 8.7 8.9 9.1 Reference Symbol Dimension in Millimeters Min Nom Max 0.22 0.27 0.34 MASS[Typ.] 8P4PRDP0008AA-A RENESAS CodeJEITA Package Code Previous Code bp 0.4 0.5 0.6 e1 7.627.32 7.92 b2 0.9 1.0 1.3 A2 3.3 A L e D E bp c θ x y HE Z 4.854.65 0.90 0.12 0° 8° 6.2 0.15 0.20 0.25 1.12 1.42 0.46 0.00 0.1 0.20 4.4 1.85 4.64.2 0.25 0.45 0.65 2.03 Reference Symbol Dimension in Millimeters Min Nom Max 5.05 0.34 0.4 6.55.7 1.27 0.10 0.75 F*1 p Mx y Index mark EA Z b E H D p Terminal cross section ( Ni/Pd/Au plating ) c b Detail F A θ NOTE) 1. DIMENSIONS"*1 (Nom)"AND"*2" DO NOT INCLUDE MOLD FLASH. 2. DIMENSION"*3"DOES NOT INCLUDE TRIM OFFSET. e MASS[Typ.] —PRSP0008DE-C RENESAS CodeJEITA Package Code Previous Code L

REJ03D0786-0200 Rev.2.00 Jun 15, 2007 Page 11 of 11 DO NOT INCLUDE MOLD FLASH. NOTE) DIMENSION "*3" DOES NOT INCLUDE TRIM OFFSET. bp HE y 0.1 e 1.27 c 0° 10° L 0.2 0.4 0.6 0.05 A 1.9 5.9 6.2 6.5 A2 1.5 E 4.2 4.4 4.6 D 4.8 5.0 5.2 Reference Symbol Dimension in Millimeters Min Nom Max 0.35 0.4 0.5 0.13 0.15 0.2 P-SOP8-4.4x5-1.27 0.07g MASS[Typ.] 8P2S-APRSP0008DA-A RENESAS CodeJEITA Package Code Previous Code 1.12 1.42 Detail F L A1A2 F Index mark y bpe A c E HE D

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