IMP1233M IMP | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 6
Technical content
2000 © IMP , Inc. 408-432-9100/www.impweb.com 1 IMP1IMP1 233M233M POWER MANAGEMENT Key Features
Applications
N Energy management systems N Embedded control systems N Printers N Single board computers N Improved Dallas DS1233M replacement — 60% lower maximum supply current N Low Supply Current — 20µA maximum (5.5V) — 15µA maximum (3.6V) N Automatically restarts a microprocessor after power failure N 350ms reset delay after VCC returns to an in-tolerance condition N Active LOW power-up reset, 5kΩ internal pull-up N Precision temperature-compensated voltage reference and comparator N Eliminates external components N Pin function compatible with the Motorola MC33064, MC34064, MC33164 and MC34164 N Motorola 68xxx and HC16 compatible N Compact surface mount SO-8 package N Operating temperature –40 °C to +85°C Block Diagram 1233M_01.eps VCC RESET GND 5.0k/K57Supply Tolerance Bias IMP1233M Delay 350ms Typical Reference LoLow Pw Poowwerer, 5V/3.0V , 5V/3.0V µµP RP Reseteset – A– Activctive Le LOOWW, Open-Dr, Open-Drain Outputain Output – 350ms R– 350ms Reset Peset Pereriodiod The IMP1233M supply voltage monitor is an improved, low-power replacement for the Dallas Semiconductor DS1233M. Maximum supply current over temperature is a low 20 µA, representing 60 percent lower power as compared to the DS1233M. The IMP1233M issues an active LOW reset signal whenever the moni- tored supply is out-of-tolerance. A precision reference and comparator circuit monitor power supply (V CC) level. Tolerance level options are 5- and 10-percent for a 5V power supply. The tolerance is 15-percent for the 3.3V , IMP1233M. When an out-of-tolerance condition is detected, an internal power-fail signal is generated which forces an active LOW reset signal. After V CC returns to an in-tolerance condition, the reset signal remains active for 350ms to allow the power supply and system micro- processor to stabilize. The IMP1233M is designed with a open-drain output stage and operates over the extended industrial temperature range. Devices are available in the compact surface mount SO-8 package. Other low power products in this family include the IMP1810/11/12/15/ 16/17 and IMP1233D. Typical Application IMP1233M Microprocessor RESET RESET 1233M_02.eps VCC GND traP egatloVTESER )V( emiTTESER )sm( tuptuO egatS TESER ytiraloP 0181PMI0 21.4,073.4,026.40 51l luP-hsuPW OL 1181PMI0 31.4,053.4,026.40 51n iarD-nepOW OL 2181PMI0 31.4,053.4,026.40 51l luP-hsuPH GIH 5181PMI0 55.2,088.2,060.30 51l luP-hsuPW OL 6181PMI0 55.2,088.2,060.30 51n iarD-nepOW OL 7181PMI0 55.2,088.2,060.30 51l luP-hsuPH GIH D3321PMI5 21.4,573.4,526.40 53n iarD-nepOW OL M3321PMI0 27.2,573.4,526.40 53n iarD-nepOW OL Family Selection Guide
2 408-432-9100/www.impweb.com 2000 © IMP , Inc. ! Pin Configuration Pin Descriptions 1233M_03.eps 4GND 3NC 2VCC 1RESET 5N C 6N C 7N C 8N CIMP1233M
Ordering Information
**traP rebmuN TESER tuptuO egatloV )V( TESER ecnareloT )%( TESER emiT )sm( egatStuptuO 8-OS egakcaP TESER ytiraloP*niarD-nepOl luP-hsuP T/55-SM3321PMI5 26.45 0 53 "" WOL T/5-SM3321PMI5 73.40 10 53 "" WOL T/3-SM3321PMI0 27.25 10 53 "" WOL k5lanretnI* Ω .pulluprotsiser .leeRdnaepaTsetacidniT/** spe.30t_M3321 srebmuNniP emaNn oitcnuF 8-OS2 9-OT
11 T ESERt uptuoteserWOLevitcA
22 V CC tupniylppusrewoP
8dna7,6,5,3 — CNn oitcennocoN
43 D NGd nuorG
2000 © IMP , Inc. Microprocessor Supervisor 3 Notes: 1. A 1k Ω external resistor maybe required in some applications for proper operation of the microprocessor reset control circuit. Absolute Maximum Ratings
Electrical Characteristics
Voltages measured with respect to ground. These are stress ratings only and functional operation is not implied. Parameter Symbol Conditions Min Typ Max Units Supply Voltage V CC 1.2 5.5 V Output Voltage V OH IOUT < 500µAV CC – 0.5V V CC – 0.1V V Output Current I OL Output = 0.4V, VCC ≥ 2.7V +8 mA Operating Current I CC VCC < 5.5V, RESET output open 8 20 µA Operating Current I CC VCC ≤ 3.6V, RESET output open 6 15 µA VCC Trip Point (IMP1233M-5) V CCTP 4.25 4.375 4.49 V VCC Trip Point (IMP1233M-55) V CCTP 4.5 4.625 4.75 V VCC Trip Point (IMP1233M-3) V CCTP 2.64 2.72 2.8 V Voltage High Trip Level V HTL 4.75 V IMP1233M-5 IMP1233M-55 Voltage Low Trip Level V LTL 4.00 V IMP1233M-5 IMP1233M-55 Voltage High Trip Level V HTL 3.14 V IMP1233M-3 Voltage Low Trip Level V LTL 2.48 V IMP1233M-3 Internal Pull-Up Resistor R P 3.5 5.0 7.5 k Ω Output Capacitance C OUT 10 pF VCC Detect to RESET Low t RPD 21 0 µs VCC Slew Rate t F 300 µs (VHTL - VLTL) VCC Slew Rate t R 0n s (VLTL - VHTL) VCC Detect to RESET High t RPU tR = 5µs 200 350 500 ms Unless otherwise noted, VCC = 1.2V to 5.5V and specifications are over the operating temperature range of – 40 °C to +85°C. All voltages are referenced to ground.
2000 © IMP , Inc. Microprocessor Supervisor 5 Absolute Maximum Ratings Plastic SO-8 (8-Pin) L 0°– 8° C HE e D B A1 A SO (8-Pin).eps sehcnIs retemilliM niMx aMn iMx aM )niP-8(8-OScitsalP A3 50.09 60.05 3.15 7.1 1A4 00.00 10.00 1.05 2.0 B3 10.00 20.03 3.01 5.0 C7 00.00 10.09 1.05 2.0 e0 50.07 2.1 E0 51.07 51.00 8.30 0.4 H8 22.04 42.00 8.50 2.6 L6 10.00 50.00 4.07 2.1 D9 81.07 91.00 8.40 0.2 spe.5t_M3321
IMP , Inc. Corporate Headquarters 2830 N. First Street San Jose, CA 95134-2071 Tel: 408-432-9100 Tel: 800-438-3722 Fax: 408-434-0335 e-mail: info@impinc.com http://www.impweb.com The IMP logo is a registered trademark of IMP , Inc. All other company and product names are trademarks of their respective owners. 2000 © IMP, Inc. Printed in USA Publication #: 1013 Revision: B Issue Date: 06/01/00 Type: Preliminary IMP1IMP1 233M233M