ADM705 데이터 시트보기 (PDF) - Analog Devices

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ADM705

Low Cost Microprocessor Supervisory Circuits

Analog Devices 

ADM705/ADM706/ADM707/ADM708

SPECIFICATIONS

VCC = 4.75 V to 5.5 V, TA = TMIN to TMAX, unless otherwise noted.

Table 1.

Parameter

POWER SUPPLY

VCC Operating Voltage Range

Supply Current

LOGIC OUTPUT

Reset Threshold

Reset Threshold Hysteresis

RESET PULSE WIDTH

RESET OUTPUT VOLTAGE

RESET OUTPUT VOLTAGE

WATCHDOG TIMEOUT PERIOD (tWD)

WDI Pulse Width (tWP)

WATCHDOG INPUT

WDI Input Threshold

Logic Low

Logic High

WDI Input Current

WDO OUTPUT VOLTAGE

MANUAL RESET INPUT

MR Pull-Up Current

MR Pulse Width

MR INPUT THRESHOLD

Logic Low

Logic High

MR TO RESET OUTPUT DELAY

POWER-FAIL INPUT

PFI Input Threshold

PFI Input Current

PFO OUTPUT VOLTAGE

Min

Typ

Max Unit Test Conditions/Comments

1.0

5.5

V

190

250 μA

4.5

4.65

4.75 V

ADM705/ADM707

4.25

4.40

4.50 V

ADM706/ADM708

40

mV

160

200

280 ms

VCC − 1.5

V

ISOURCE = 800 μA

0.4

V

ISINK = 3.2 mA

0.3

V

VCC = 1 V, ISINK = 50 μA

0.3

V

VCC = 1.2 V, ISINK = 100 μA

VCC − 1.5

V

ADM707/ADM708, ISOURCE = 800 μA

0.4

V

ADM707/ADM708, ISINK = 1.2 mA

1.00

1.60

2.25 sec

VIL = 0.4 V, VIH = VCC × 0.8, WDI = VCC

50

ns

3.5

−150

VCC − 1.5

100

150

2.0

1.2

−25

VCC − 1.5

0.8

V

V

50

150 μA

−50

μA

V

0.4

V

250

600 μA

ns

0.8

V

V

250 ns

1.25

1.3

V

+0.01 +25 nA

V

0.4

V

WDI = 0 V

WDI = 0 V

ISOURCE = 800 μA

ISINK = 1.2 mA

MR = 0 V

ISOURCE = 800 μA

ISINK = 3.2 mA

Rev. G | Page 3 of 12

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