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TC1278_07 Datasheet, PDF (3/12 Pages) Microchip Technology – 3-Pin Reset Monitors for 5V Systems
TC1278/TC1279
AC CHARACTERISTICS
Electrical Specifications: Unless otherwise indicated, TA = -40°C to +85°C. Typical values are at TA = +25°C.
Parameters
Sym Min Typ Max Units
Conditions
RESET Active Time
VCC Detect to RESET
(TC1279)
tRST
250 350 450 ms
tRPD1
—
2
5
µs Figure 3-2
VCC Detect to RESET
(TC1278)
tRPD2
—
2
5
µs Figure 3-4
VCC Slew Rate (4.75V-4.00V)
tF
300 —
—
µs Figure 3-2, Figure 3-4
VCC Slew Rate (4.00V-4.75V)
tR
0
—
—
ns Figure 3-1, Figure 3-3
VCC Detect to RESET
(TC1279)
tRPU1 250 350 450 ms Figure 3-1
VCC Detect to RESET
(TC1278)
tRPU2 250 350 450 ms Figure 3-3
© 2007 Microchip Technology Inc.
DS21384D-page 3