參數(shù)資料
型號(hào): DS3234S#
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 16/21頁(yè)
文件大小: 0K
描述: IC RTC W/TCXO 20-SOIC
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 45
類型: 時(shí)鐘/日歷
特點(diǎn): 警報(bào)器,閏年,NVSRAM,方波輸出,TCXO/晶體
存儲(chǔ)容量: 256B
時(shí)間格式: HH:MM:SS(12/24 小時(shí))
數(shù)據(jù)格式: YY-MM-DD-dd
接口: SPI
電源電壓: 2 V ~ 5.5 V
電壓 - 電源,電池: 2 V ~ 3.8 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 20-SOIC W
包裝: 管件
產(chǎn)品目錄頁(yè)面: 1434 (CN2011-ZH PDF)
DS3234
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 2)
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 7)
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 8)
40
ns
Pushbutton Debounce
PBDB
250
ms
Reset Active Time
tRST
250
ms
Oscillator Stop Flag (OSF) Delay
tOSF
(Note 9)
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
s
VCC Rise Time; VPF(MIN) to
VPF(MAX)
tVCCR
0s
Recovery at Power-Up
tREC
(Note 10)
125
300
ms
CAPACITANCE
(TA = +25°C)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Capacitance on All Input Pins
CIN
(Note 11)
10
pF
Capacitance on All Output Pins
CIO
Outputs high impedance (Note 11)
10
pF
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