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CAT823 Datasheet(PDF) 4 Page - Catalyst Semiconductor

No. de Pieza. CAT823
Descripción  System Supervisory Voltage Reset with Watchdog and Manual Reset
Descarga  14 Pages
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Fabricante  CATALYST [Catalyst Semiconductor]
Página de inicio  http://www.catalyst-semiconductor.com
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CAT823 Datasheet(HTML) 4 Page - Catalyst Semiconductor

 
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CAT823, CAT824, CAT825
Doc. No. MD-3027 Rev. B
4
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
ELECTRICAL OPERATING CHARACTERISTICS
DC Characteristics: VCC = 3.0V to 5.5V for L/M versions; VCC = 2.0V to 3.6V for the R/S/T/Y/Z version,
-40ºC ≤ TA ≤ +85ºC unless otherwise noted. Typical Values at TA = 25ºC and VCC = 5V for L/M versions;
VCC = 3.3V for the T/S versions; VCC = 3.0V for the R version; and VCC = 2.5V for the Y/Z versions.
(1)
Symbol Parameter
Conditions
Min
Typ
Max
Units
CAT823 (L/M Versions)
CAT824 (L/M Versions)
6
17
µA
CAT823 (R/S/T/Y/Z Versions)
CAT824 (R/S/T/Y/Z Versions)
4
12
µA
CAT825 (L/M Versions)
3
8
µA
ICC
Supply Current
CAT825 (R/S/T/Y/Z Versions)
2
6
µA
CAT82_L at -40ºC ≤ TA ≤ +85ºC
4.50
4.63
4.75
V
CAT82_M at -40ºC ≤ TA ≤ +85ºC
4.25
4.38
4.50
V
CAT82_T at -40ºC ≤ TA ≤ +85ºC
3.00
3.08
3.15
V
CAT82_S at -40ºC ≤ TA ≤ +85ºC
2.85
2.93
3.00
V
CAT82_R at -40ºC ≤ TA ≤ +85ºC
2.55
2.63
2.70
V
CAT82_Z at -40ºC ≤ TA ≤ +85ºC
2.25
2.32
2.38
V
VRST
Reset Threshold
CAT82_Y at -40ºC ≤ TA ≤ +85ºC
2.13
2.19
2.25
V
Reset Threshold
Tempco
40
ppm/ºC
CAT82_L/M
10
mV
Reset Threshold
Hysteresis
CAT82_R/S/T/Y/Z
5
mV
tRD
VCC to Reset Delay
(2) V
CC = VTH to (VTH - 100mV)
20
µs
tRP
Reset Active
Timeout Period
140
200
400
ms
CAT82_L/M, VCC = VRST max,
ISOURCE = -120µA
VCC - 1.5V
VOH
RESET
¯¯¯¯¯¯ Output High
Voltage
CAT82_T/S/R/Z/Y, VCC = VRST max,
ISOURCE = -30µA
0.8 x VCC
CAT82_L/M, VCC = VRST min,
ISINK = 3.2mA
0.4
CAT82_T/S/R/Z/Y, VCC = VRST min,
ISINK = 1.2mA
0.3
TA = 0ºC to +70ºC, VCC = 1V,
VCC falling, ISINK = 50µA
0.3
VOL
RESET
¯¯¯¯¯¯ Output Low
Voltage
TA = TMIN to TMAX, VCC = 1.2V,
VCC falling, ISINK = 100µA
0.3
V
CAT82_L/M, Reset = 0V, VCC = 5.5V
1.5
ISOURCE
RESET
¯¯¯¯¯¯ Output
Short-Circuit Current CAT82_L/M, Reset = 0V, V
CC = 3.6V
0.8
mA
VOH
VCC > 1.8V, ISOURCE = -150µA
0.8 x VCC
CAT824L/M & CAT825L/M,
VCC = VRST max, ISINK = 3.2mA
0.4
VOL
Reset Output
Voltage
CAT824R/S/T/Y/Z & CAT825R/S/T/Y/Z,
VCC = VRST max, ISINK = 1.2mA
0.3
V
Notes:
(1) Over-temperature limits are guaranteed by design and not production tested.
(2) The RESET short-circuit current is the maximum pull-up current when reset is driven low by a bidirectional output.


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