DS1312E データシートの表示（PDF） - Dallas Semiconductor -> Maxim Integrated
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DS1312E Datasheet PDF : 11 Pages
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CAPACITANCE
PARAMETER
Input Capacitance ( CEI , TOL)
Output Capacitance
( CEO , BW , RST )
SYMBOL
CIN
COUT
MIN
AC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL MIN
CEI to CEO Propagation Delay
tPD
CE Pulse Width
tCE
VCC Valid to End of
tREC
Write Protection
VCC Valid to CEI Inactive
VCC Valid to RST Inactive
VCC Valid to BW Valid
tPU
tRPU
150
tBPU
AC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL MIN
VCC Slew Rate
VCC Fail Detect to RST Active
VCC Slew Rate
tF
150
tRPD
tR
150
AC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL MIN
Battery Test to BW Active
tBW
Battery Test Cycle-Normal
tBTCN
Battery Test Cycle-Warning
tBTCW
Battery Test Pulse Width
tBTPW
Battery Detach to Battery Attach
tBDBA
7
Battery Attach to BW Inactive
tBABW
TYP
MAX
7
7
DS1312
(tA =25°C)
UNITS NOTES
pF
pF
(-40°C to +85°C; VCCI > VCCTP)
TYP MAX UNITS NOTES
5
10
ns
1.5
µs
11
12
125
ms
9
2
ms
200
350
ms
10
1
s
10
(-40°C to +85°C; VCCI < VCCTP)
TYP MAX UNITS NOTES
µs
5
15
µs
10
µs
(-40°C to +85°C; VCCI > VCCTP)
TYP MAX UNITS NOTES
1
s
10
24
5
1
1
hr
s
s
s
s
10
6 of 11
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