ST UPSD3212A, User Manual

Page: 153 / 163

153/163
uPSD3212A, uPSD3212C, uPSD3212CV
Figure 81. Reset (RESET) Timing
Table 137. Reset (RESET) Timing (5V Devices)
Note: 1. Reset (RESET) does not reset Flash memory Program or Erase cycles.
Table 138. Reset (RESET) Timing (3V Devices)
Note: 1. Reset (RESET) does not reset Flash memory Program or Erase cycles.
Table 139. V
STBYON
Definitions Timing (5V Devices)
Note: 1. V
STBYON
timing is measured at V
CC
ramp rate of 2ms.
Table 140. V
STBYON
Timing (3V Devices)
Note: 1. V
STBYON
timing is measured at V
CC
ramp rate of 2ms.
Symbol Parameter Conditions Min Max Unit
t
NLNH
RESET Active Low Time
(1)
150 ns
t
NLNH–PO
Power-on Reset Active Low Time 1 ms
t
OPR
RESET High to Operational Device 120 ns
Symbol Parameter Conditions Min Max Unit
t
NLNH
RESET Active Low Time
(1)
300 ns
t
NLNH–PO
Power-on Reset Active Low Time 1 ms
t
OPR
RESET High to Operational Device 300 ns
Symbol Parameter Conditions Min Typ Max Unit
t
BVBH
V
STBY
Detection to V
STBYON
Output High
(Note 1)
20 µs
t
BXBL
V
STBY
Off Detection to V
STBYON
Output
Low
(Note 1)
20 µs
Symbol Parameter Conditions Min Typ Max Unit
t
BVBH
V
STBY
Detection to V
STBYON
Output High
(Note 1)
20 µs
t
BXBL
V
STBY
Off Detection to V
STBYON
Output
Low
(Note 1)
20 µs
tNLNH-PO tOPR
AI07437
RESET
tNLNH
tOPR
V
CC
V
CC
(min)
Power-On Reset Warm Reset
www.BDTIC.com/ST