CAT825MSDI-GT3 datasheet(3/12 Pages) ONSEMI

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CAT823, CAT824, CAT825

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Table 3. ELECTRICAL OPERATING CHARACTERISTICS (DC Characteristics: VCC = 3.0 V to 5.5 V for L/M versions;

VCC = 2.0 V to 3.6 V for the R/S/T/U/Y/Z version, −40°C ≤ TA ≤ +85°C unless otherwise noted. Typical Values at TA = 25°C and VCC = 5 V

for L/M versions; VCC = 3.3 V for the T/S versions; VCC = 3.0 V for the R version; and VCC = 2.5 V for the U/Y/Z versions.) (Note 1)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

ICC

Supply Current

CAT823 (L/M Versions)

CAT824 (L/M Versions)

CAT823 (R/S/T/Y/Z Versions)

CAT824 (R/S/T/U/Y/Z Versions)

CAT825 (L/M Versions)

CAT825 (R/S/T/Y/Z Versions)

VRST

Reset Threshold

CAT82_L at −40°C ≤ TA ≤ +85°C

4.50

4.63

4.75

CAT82_M at −40°C ≤ TA ≤ +85°C

4.25

4.38

4.50

CAT82_T at −40°C ≤ TA ≤ +85°C

3.00

3.08

3.15

CAT82_S at −40°C ≤ TA ≤ +85°C

2.85

2.93

3.00

CAT82_R at −40°C ≤ TA ≤ +85°C

2.55

2.63

2.70

CAT82_Z at −40°C ≤ TA ≤ +85°C

2.25

2.32

2.38

CAT82_Y at −40°C ≤ TA ≤ +85°C

2.13

2.19

2.25

CAT824U at −40°C ≤ TA ≤ +85°C

1.95

2.00

2.05

Reset Threshold Tempco

ppm/°C

Reset Threshold Hysteresis

CAT82_L/M

CAT82_R/S/T/Y/Z, CAT824U

tRD

VCC to Reset Delay (Note 2)

VCC = VTH to (VTH − 100 mV)

tRP

Reset Active Timeout Period

140

200

400

VOH

RESET Output High Voltage

CAT82_L/M, VCC = VRST max,

ISOURCE = −120 mA

VCC − 1.5 V

CAT82_T/S/R/Z/Y, CAT824U,

VCC = VRST max, ISOURCE = −30 mA

0.8 x VCC

VOL

RESET Output Low Voltage

CAT82_L/M, VCC = VRST min,

ISINK = 3.2 mA

0.4

CAT82_T/S/R/Z/Y, CAT824U,

VCC = VRST min, ISINK = 1.2 mA

0.3

TA = 0°C to +70°C, VCC = 1 V,

VCC falling, ISINK = 50 mA

0.3

TA = TMIN to TMAX, VCC = 1.2 V,

VCC falling, ISINK = 100 mA

0.3

ISOURCE

RESET Output

Short−Circuit Current

CAT82_L/M, Reset = 0 V, VCC = 5.5 V

1.5

CAT82_L/M, Reset = 0 V, VCC = 3.6 V

0.8

VOH

Reset Output Voltage

VCC > 1.8 V, ISOURCE = −150 mA

0.8 x VCC

VOL

CAT824L/M & CAT825L/M,

VCC = VRST max, ISINK = 3.2 mA

0.4

CAT824R/S/T/U/Y/Z &

CAT825R/S/T/Y/Z,

VCC = VRST max, ISINK = 1.2 mA

0.3

1. Over−temperature limits are guaranteed by design and not production tested.

2. The RESET short−circuit current is the maximum pull−up current when reset is driven low by a bidirectional output.

3. WDI is internally serviced within the watchdog period if WDI is left open.

4. The WDI input current is specified as an average input current when the WDI input is driven high or low. The WDI input if connected to

a three−stated output device can be disabled in the tristate mode as long as the leakage current is less than 10 mA and a maximum capacitance

of less than 200 pF. To clock the WDI input in the active mode the drive device must be able to source or sink at least 200 mA when active.

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