Datasheet

© 2007 Microchip Technology Inc. Preliminary DS21894C-page 23
MCP2122
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 +125°C (Extended)
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
34A To
D Default output state of TXIR
pin from RESET Low
2 µs
34B To
D Default output state of RX
pins from RESET Low
——2µs
Note 1: Data in the Typical (“Typ”) column is at 5V, +25°C unless otherwise stated. These parameters are for design
guidance only and are not tested.
VDD
RESET
Internal
RESET
30
34A
34A
TXIR Pin
RX Pin
34B
34B