LTC693CSW#TR Linear Technology, LTC693CSW#TR Datasheet - Page 16
![IC SUPERVISORY CIRC MPU 16SOIC](/photos/6/63/66314/161-16-soic_sml.jpg)
LTC693CSW#TR
Manufacturer Part Number
LTC693CSW#TR
Description
IC SUPERVISORY CIRC MPU 16SOIC
Manufacturer
Linear Technology
Type
Simple Reset/Power-On Resetr
Datasheet
1.LTC692CS8PBF.pdf
(20 pages)
Specifications of LTC693CSW#TR
Number Of Voltages Monitored
1
Output
Open Drain or Open Collector
Reset
Active High/Active Low
Reset Timeout
140 ms Minimum
Voltage - Threshold
4.4V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
16-SOIC (0.300", 7.5mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
APPLICATIONS INFORMATION
TYPICAL APPLICATIONS
LTC692/LTC693
Pushbutton Reset
The LTC692/LTC693 do not provide a logic input for direct
connection to a pushbutton. However, a pushbutton in
series with a 100Ω resistor connected to the RESET output
pin (Figure 13) provides an alternative for manual reset.
Connecting a 0.1μF capacitor to the RESET pin debounces
the pushbutton input.
The 100Ω resistor in series with the pushbutton is required
to prevent the ringing, due to the capacitance and lead
inductance, from pulling the RESET pins of the MPU and
LTC692/LT693 below ground.
16
R2
30k
R1
10k
1
Capacitor Backup with 74HC4016 Switch
74HC4016
10
7
11
12
13
14
5V
2
+
100μF
0.1μF
V
V
CC
BATT
LTC693
GND
LOW LINE
V
OUT
692_3 • TA03
0.1μF
0.1μF
5V
3V
5V
V
V
CC
BATT
V
CC
Figure 13. The External Pushbutton Reset
LTC693
LTC692
LTC693
GND
Write-Protect for Additional RAMs
GND
LOW LINE
CE OUT
RESET
CE IN
V
OUT
CS
20ns PROPAGATION
DELAY
A
+
0.1μF
OPTIONAL CONNECTION FOR
ADDITIONAL RAMs
10μF
CS
CS
B
C
100Ω
0.1μF
0.1μF
0.1μF
RESET
(e.g. 6805)
MPU
CS
CS
CS
CS
CS
692_3 • F13
V
V
V
CC
CC
CC
62512
RAM
1
2
1
62128
RAM
2
62128
RAM
692_3 • TA04
A
B
0692fb
C