Datasheet

CHAPTER 27 ELECTRICAL SPECIFICATIONS (STANDARD PRODUCTS)
User’s Manual U18698EJ1V0UD
556
Standard
p
roducts
1.59 V POC Circuit Characteristics (T
A = −40 to +85°C, VSS = 0 V)
Parameter Symbol Conditions MIN. TYP. MAX. Unit
Detection voltage VPOC 1.44 1.59 1.74 V
Power supply voltage rise
inclination
t
PTH VDD: 0 V → change inclination of VPOC 0.5 V/ms
Minimum pulse width tPW 200 μ s
POC Circuit Timing
Supply voltage
(V
DD )
Time
Detection voltage (MIN.)
Detection voltage (TYP.)
Detection voltage (MAX.)
t PTH
t PW
Supply Voltage Rise Time (T
A = −40 to +85°C, VSS = 0 V)
Parameter Symbol Conditions MIN. TYP. MAX. Unit
Maximum time to rise to 1.8 V (VDD (MIN.))
(V
DD: 0 V → 1.8 V)
t
PUP1
POCMODE (option byte) = 0,
when RESET input is not used
3.6 ms
Maximum time to rise to 1.8 V (VDD (MIN.))
(releasing RESET input → V
DD: 1.8 V)
t
PUP2
POCMODE (option byte) = 0,
when RESET input is used
1.9 ms
Supply Voltage Rise Time Timing
• When RESET pin input is not used • When RESET pin input is used
Supply voltage
(V
DD )
Time
1.8 V
t PUP1
Supply voltage
(V
DD )
Time
1.8 V
t PUP2
V POC
RESET pin
2.7 V POC Circuit Characteristics (T
A = −40 to +85°C, VSS = 0 V)
Parameter Symbol Conditions MIN. TYP. MAX. Unit
Detection voltage on application of supply
voltage
V
DDPOC POCMODE (option bye) = 1 2.50 2.70 2.90 V