参数资料
型号: DS32C35-33#T&R
厂商: Maxim Integrated Products
文件页数: 17/22页
文件大小: 0K
描述: IC RTC ACCURATE I2C 3.3V 20-SOIC
产品变化通告: Product Discontinuation 28/Nov/2011
标准包装: 1,000
类型: 时钟/日历
特点: 警报器,FRAM,闰年,方波输出,TCXO/晶体
存储容量: 8KB
时间格式: HH:MM:SS(12/24 小时)
数据格式: YY-MM-DD-dd
接口: I²C,2 线串口
电源电压: 2.7 V ~ 3.63 V
电压 - 电源,电池: 2.3 V ~ 3.6 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 20-SOIC(0.295",7.50mm 宽)
供应商设备封装: 20-SOIC W
包装: 带卷 (TR)
DS32B35/DS32C35
Accurate I2C RTC with Integrated
TCXO/Crystal/FRAM
4
_____________________________________________________________________
AC ELECTRICAL CHARACTERISTICS
(VCC = 2.7V to 3.63V, TA = -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Fast mode
100
400
SCL Clock Frequency
fSCL
Standard mode
0
100
kHz
Fast mode
1.3
Bus Free Time Between STOP
and START Conditions
tBUF
Standard mode
4.7
μs
Fast mode
0.6
Hold Time (Repeated) START
Condition (Note 8)
tHD:STA
Standard mode
4.0
μs
Fast mode
1.3
Low Period of SCL Clock
tLOW
Standard mode
4.7
μs
Fast mode
0.6
High Period of SCL Clock
tHIGH
Standard mode
4.0
μs
Fast mode
0
0.9
Data Hold Time (Notes 9, 10)
tHD:DAT
Standard mode
0
μs
Fast mode
100
Data Setup Time (Note 11)
tSU:DAT
Standard mode
250
ns
Fast mode
0.6
Setup Time for Repeated START
Condition
tSU:STA
Standard mode
4.7
μs
Fast mode
300
Rise Time of Both SDA and SCL
Signals (Note 12)
tR
Standard mode
20 +
0.1CB
1000
ns
Fast mode
300
Fall Time of Both SDA and SCL
Signals (Note 12)
tF
Standard mode
20 +
0.1CB
300
ns
Fast mode
0.6
Setup Time for STOP Condition
tSU:STO
Standard mode
4.0
μs
Capacitive Load for Each Bus
Line (Note 12)
CB
400
pF
10
I/O Capacitance
INT/SQW, 32kHz, SCL, SDA
CI/O
Outputs = high impedance
18
pF
Pushbutton Debounce
PBDB
(See the Pushbutton Reset Timing diagram)
250
ms
Reset Active Time
tRST
250
ms
Oscillator Stop Flag (OSF) Delay
tOSF
(Note 13)
100
ms
FRAM Data Retention
tDR
10
Years
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