MAX6862UK225(2004) データシートの表示（PDF） - Maxim Integrated

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MAX6862UK225
(Rev.:2004)

Nanopower µP Supervisory Circuits with Manual Reset and Watchdog Timer

Maxim Integrated 

Nanopower µP Supervisory Circuits with

Manual Reset and Watchdog Timer

ELECTRICAL CHARACTERISTICS (continued)

(VCC = 1.2V to 5.5V, TA = -40°C to +85°C, unless otherwise specified. Typical values are at VCC = 2.5V, TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP MAX UNITS

VCC ≥ 1.1V, ISOURCE = 10µA,

RESET asserted, TA ≥ 0°C

0.8 x VCC

VCC ≥ 1.2V, ISOURCE = 10µA,

RESET asserted

0.8 x VCC

VOH

VCC ≥ 1.53V, ISOURCE = 200µA,

RESET asserted

0.8 x VCC

RESET Output Voltage

V

VCC ≥ 2.12V, ISOURCE = 500µA,

RESET asserted

0.8 x VCC

VCC ≥ 1.71V, ISINK = 500µA,

0.3

RESET deasserted

VOL

VCC ≥ 2.38V, ISINK = 1.2mA,

RESET deasserted

0.3

CT Input Current

CT Input Voltage

VIH

VIL

MANUAL RESET INPUT

MR Input Voltage

MR Minimum Pulse Width

MR Glitch Rejection

VIH

VIL

tMPW

MR to Reset Delay

MR Pullup Resistance

tMRD

WATCHDOG TIMER (MAX6864–MAX6869)

WDI Input Voltage

VIH

VIL

WDI Input Current

WDI Pulse Width

tWDI

Watchdog Timeout Period

tWD

CT = GND or VCC

WDI = GND or VCC

(Note 3)

S

L

0.8 x VCC

20

nA

V

0.2 x VCC

0.7 x VCC

V

0.3 x VCC

1

µs

200

ns

250

ns

5

10

20

kΩ

0.7 x VCC

V

0.3 x VCC

20

nA

150

ns

1.5

3.3

7.75

s

95

209

487

Note 1: Devices are tested at TA = +25°C. Specifications for TA = -40°C to +85°C are guaranteed by design.

Note 2: For the MAX6864–MAX6869, the watchdog period is 1s with tRISE and tFALL < 50ns.

Note 3: Guaranteed by design.

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