ADM697 Analog Devices, ADM697 Datasheet - Page 11

• Manufacturer Part Number: ADM697
• Manufacturer: Analog Devices

Specifications of ADM697

• Product Description: µP Supv with CE Inputs, Adj Low Line V Monitor, Adj W-dog Timer, Low Line, Pwr Fail & W-dog Status
• Reset Threshold (v): 1.3,Adjustable
• Min Reset Timeout (ms): 35
• Reset Output-stage: Active-High/Push-Pull,Active-Low/Push-Pull
• Backup-battery Switch: No
• Chip Enable Gating: Yes
• Typ Watchdog Timeout (ms): 100,1600,adj.
• Package: DIP,SOIC
• Us Price 1000-4999: n/a
• Display In Ist: Yes
• Batt Source Sel Flg: Y
• Reset Threshold Summary: 1.3V (Adjustable)
• Min Positive Supply (v): +3V
• Batt-backup-flg: Yes

REV. 0
This application also shows an optional, external transistor
which may be used to provide in excess of 100 mA current on
V
goes low, providing 25 mA of base drive for the external PNP
transistor. The maximum current available is dependent on the
power rating of the external transistor.
OUT
. When V
CC
is higher than V
BATT
0.200 (5.05)
0.125 (3.18)
(5.33)
, the BATT ON output
0.210
PIN 1
SEATING
(7.60)
0.299
0.012
PLANE
(0.3)
0.022 (0.558)
0.014 (0.356)
PIN 1
0.200
(5.08)
MAX
1
6
1
16
1
0.022 (0.558)
0.014 (0.356)
16
0.05 (1.27)
1
Dimensions shown in inches and (mm).
0.100 (2.54)
0.413 (10.50)
REF
BSC
0.840 (21.33)
0.745 (18.93)
OUTLINE DIMENSIONS
16-Pin Plastic DIP (N-16)
0.840 (21.34) MAX
0.100 (2.54)
16-Pin Cerdip (Q-16)
16-Lead SOIC (R-16)
BSC
0.019 (0.49)
0.070 (1.77)
0.045 (1.15)
9
8
–11–
(10.65)
0.104
(2.65)
0.070 (1.78)
0.30 (0.76)
0.419
9
8
RAM Write Protection
The ADM697 CE
CMOS RAM. CE
reset threshold. If LL
goes high, independent of the logic level at CE
the microprocessor from writing erroneous data into RAM dur-
ing power-up, power-down, brownouts and momentary power
interruptions.
9
8
0.013
(0.32)
0.060 (1.52)
0.015 (0.38)
(0.75)
0.280 (7.11)
0.240 (6.10)
0.030
SEATING
PLANE
0.310 (7.87)
0.220 (5.59)
0.060 (1.52)
0.015 (0.38)
0.150
(3.81)
0.150
(3.81)
MIN
0.015 (0.381)
0.008 (0.204)
0.325 (8.25)
0.300 (7.62)
0.015 (0.381)
0.008 (0.204)
0.320 (8.13)
0.290 (7.37)
OUT
OUT
IN
0.195 (4.95)
0.115 (2.93)
0.042
(1.07)
follows CE
line drives the Chip Select inputs of the
falls below the reset threshold, CE
ADM696/ADM697
IN
as long as LL
IN
. This prevents
IN
is above the
OUT