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DS1321 Datasheet(PDF) 7 Page - Maxim Integrated Products

Part # DS1321
Description  Flexible Nonvolatile Controller with Lithium Battery Monitor
PDF  13 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

DS1321 Datasheet(HTML) 7 Page - Maxim Integrated Products

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DS1321
7 of 13
Input Leakage
IIL
-1.0
+1.0
µA
Output Leakage
ILO
-1.0
+1.0
µA
Battery Monitoring Test Load
RINT
0.8
1.2
1.5
MΩ
DC ELECTRICAL CHARACTERISTICS
(-40°C to +85°C; VCCI < VBAT; VCCI < VCCTP)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Battery Current
IBAT
100
nA
3
Battery Backup Current
ICCO3
500
µA
7
Supply Voltage
VCCO
VBAT-0.2
V
2
CEO
Output
VOHL
VBAT-0.2
V
2, 9
CAPACITANCE
(TA = +25°C)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Input Capacitance
( CEI *, TOL, MODE)
CIN
7
pF
Output Capacitance
( CEO *, BW , RST )
COUT
7
pF
AC ELECTRICAL CHARACTERISTICS
(-40°C to +85°C; VCCI ≥ VCCTP)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
CEI
to CEO Propagation Delay
tPD
12
20
ns
CE
Pulse Width
tCE
1.5
µs
12
VCC Valid to End of
Write Protection
tREC
125
ms
10
VCC Valid to CEI Inactive
tPU
2
ms
VCC Valid to RST Inactive
tRPU
150
200
350
ms
11
VCC Valid to BW Valid
tBPU
1
s
11
AC ELECTRICAL CHARACTERISTICS
(-40°C to +85°C; VCCI < VCCTP)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
VCC Slew Rate
tF
150
µs
VCC Fail Detect to RST Active
tRPD
15
µs
11
VCC Slew Rate
tR
15
µs
AC ELECTRICAL CHARACTERISTICS
(-40°C to +85°C; VCCI ≥ VCCTP)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Battery Test to BW Active
tBW
1
s
11
Battery Test Cycle-Normal
tBTCN
24
hr
Battery Test Cycle-Warning
tBTCW
5
s
Battery Test Pulse Width
tBTPW
1
s
Battery Detach to Battery Attach
tBDBA
7
s
Battery Attach to BW Inactive
tBABW
1
s
11



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