Advanced
RESET CIRCUIT CHARACTERISTICS
Symbol
tGLITCH
VRT
VOLRS
VOHRS
VTH
tPURST
tRPD
VRVALID
Parameter
Min. Max.
Glitch Reject Pulse Width
100
Reset Threshold Hystersis
15
Reset Output Low Voltage (IOLRS=1mA)
0.4
Reset Output High Voltage
Vcc-0.75
Reset Threshold (Vcc=5V)
(25CXXX-45)
4.50 4.75
Reset Threshold (Vcc=5V)
(25CXXX-42)
4.25 4.50
Reset Threshold (Vcc=3.3V)
(25CXXX-30)
3.00 3.15
Reset Threshold (Vcc=3.3V)
(25CXXX-28)
2.85 3.00
Reset Threshold (Vcc=3V)
(25CXXX-25)
2.55 2.70
Reset Threshold (Vcc=1.8V)
(25CXXX-17)
1.70 1.80
Power-Up Reset Timeout
130
270
VTH to RESET Output Delay
5
RESET Output Valid
1
Units
ns
mV
V
V
V
ms
µs
V
CAT25CXXX
Figure 9. RESET Output Timing
VTH
VRVALID
VCC
t
GLITCH
tPURST
t RPD
tPURST
RESET
t RPD
RESET
9-105
Stock No. 21085-01 4/98