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DS3234 Datasheet(PDF) 4 Page - Maxim Integrated Products

Part # DS3234
Description  Extremely Accurate SPI Bus RTC with Integrated Crystal and SRAM
PDF  21 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

DS3234 Datasheet(HTML) 4 Page - Maxim Integrated Products

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Extremely Accurate SPI Bus RTC with
Integrated Crystal and SRAM
4
_____________________________________________________________________
AC ELECTRICAL CHARACTERISTICS
(VCC = 2.0V to 5.5V, TA = -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
2.7V
VCC
5.5V
4
SCLK Clock Frequency
fSCL
2.0V
VCC < 2.7V
2
MHz
Data to SCLK Setup
tDC
30
ns
SCLK to Data Hold
tCDH
30
ns
SCLK to
CS Setup
tCCS
30
ns
2.7V
VCC
5.5V
80
SCLK to Data Valid (Note 6)
tCDD
2.0V
VCC < 2.7V
160
ns
2.7V
VCC
5.5V
110
SCLK Low Time
tCL
2.0V
VCC < 2.7V
220
ns
2.7V
VCC
5.5V
110
SCLK High Time
tCH
2.0V
VCC < 2.7V
220
ns
SCLK Rise and Fall
tR, tF
200
ns
CS to SCLK Setup
tCC
400
ns
2.7V
VCC
5.5V
100
SCLK to
CS Hold
tCCH
2.0V
VCC < 2.7V
200
ns
CS Inactive Time
tCWH
400
ns
CS to Output High Impedance
tCDZ
(Note 7)
40
ns
Pushbutton Debounce
PBDB
250
ms
Reset Active Time
tRST
250
ms
Oscillator Stop Flag (OSF) Delay
tOSF
(Note 8)
100
ms
Temperature Conversion Time
tCONV
125
200
ms
POWER-SWITCH CHARACTERISTICS
(TA = -40°C to +85°C)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
VCC Fall Time; VPF(MAX) to
VPF(MIN)
tVCCF
300
µs
VCC Rise Time; VPF(MIN) to
VPF(MAX)
tVCCR
0µs
Recovery at Power-Up
tREC
(Note 9)
125
300
ms
CAPACITANCE
(TA = +25°C)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Capacitance on All Input Pins
CIN
(Note 10)
10
pF
Capacitance on All Output Pins
CIO
Outputs high impedance (Note 10)
10
pF



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