Datasheet

© 2007 Microchip Technology Inc. DS21618B-page 19
MCP2120
FIGURE 4-5: Reset and Device Reset Timer Timing
TABLE 4-5: RESET
AND DEVICE RESET TIMER REQUIREMENTS
AC Characteristics
Standard Operating Conditions (unless otherwise specified)
Operating Temperature –40°C ≤ T
A ≤ +85°C (industrial)
Operating Voltage VDD range is described in Section 4.1 “DC
Characteristics”
Param.
No.
Sym Characteristic Min Typ
(1)
Max Units Conditions
30 TRSTL RESET Pulse Width (low) 2000 — — ns VDD = 5.0 V
31 T
LPT Low Power Time-out Period 9 18 30 ms VDD = 5.0 V
32 T
DRT Device Reset Timer Period 9 18 30 ms VDD = 5.0 V
34 Tio
Z Output Hi-impedance from
RESET
Low or device Reset
— — 2 µs
Note 1: Data in the Typical (“Typ”) column is at 5V, 25°C unless otherwise stated.
VDD
RESET
DRT
Time-out
Internal
RESET
Low Power
Timer
Reset
32
31
34
Output pin
32
32
34
30