CAT93CXXXX Datasheet, PDF (5/10 Pages) Catalyst Semiconductor – Supervisory Circuits with Microwire Serial CMOS E2PROM, Precision Reset Controller and Watchdog Timer

Advanced Information
RESET CIRCUIT CHARACTERISTICS
Symbol
t_GLITCH
V_RT
V_OLRS
V_OHRS
V_TH
t_PURST
t_RPD
V_RVALID
Parameter
Min. Max.
Glitch Reject Pulse Width
100
Reset Threshold Hystersis
15
Reset Output Low Voltage (I_OLRS=1mA)
0.4
Reset Output High Voltage
Vcc-0.75
Reset Threshold (Vcc=5V)
(93CXXXX-45)
4.50 4.75
Reset Threshold (Vcc=5V)
(93CXXXX-42)
4.25 4.50
Reset Threshold (Vcc=3.3V)
(93CXXXX-30)
3.00 3.15
Reset Threshold (Vcc=3.3V)
(93CXXXX-28)
2.85 3.00
Reset Threshold (Vcc=3V)
(93CXXXX-25)
2.55 2.70
Power-Up Reset Timeout
130
270
V_TH to RESET Output Delay
5
RESET Output Valid
1
Units
ns
mV
V
V
V
ms
µs
V
Figure 1. RESET Output Timing
t
GLITCH
V_TH
V_RVALID
V_CC
t_PURST
t _RPD
t_PURST
CAT93CXXXX
RESET
t _RPD
RESET
9-89
Stock No. 21084-01 2/98