DS32C35 Maxim Integrated Products, Inc., DS32C35 Datasheet - Page 4

• Manufacturer Part Number: DS32C35
• Description: Accurate I2c Rtc With Integrated Tcxo/crystal/fram
• Manufacturer: Maxim Integrated Products, Inc.

AC ELECTRICAL CHARACTERISTICS
(V
Accurate I
TCXO/Crystal/FRAM
4
SCL Clock Frequency
Bus Free Time Between STOP
and START Conditions
Hold Time (Repeated) START
Condition (Note 7)
Low Period of SCL Clock
High Period of SCL Clock
Data Hold Time (Notes 8, 9)
Data Setup Time (Note 10)
Setup Time for Repeated START
Condition
Rise Time of Both SDA and SCL
Signals (Note 11)
Fall Time of Both SDA and SCL
Signals (Note 11)
Setup Time for STOP Condition
Capacitive Load for Each Bus
Line (Note 11)
I/O Capacitance
INT/SQW, 32kHz, SCL, SDA
Pushbutton Debounce
Reset Active Time
Oscillator Stop Flag (OSF) Delay
FRAM Data Retention
CC
_____________________________________________________________________
= 2.7V to 3.63V, T
PARAMETER
A
= -40°C to +85°C, unless otherwise noted.) (Note 1)
2
C RTC with Integrated
SYMBOL
t
t
t
t
t
HD:STA
HD:DAT
SU:DAT
SU:STA
SU:STO
t
PB
t
t
f
t
HIGH
C
t
LOW
t
BUF
C
RST
OSF
SCL
t
DR
t
I/O
R
F
B
DB
(See the Pushbutton Reset Timing diagram)
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Outputs = high impedance
(Note 12)
CONDITIONS
0.1C
0.1C
20 +
20 +
MIN
100
100
250
1.3
4.7
0.6
4.0
1.3
4.7
0.6
4.0
0.6
4.7
0.6
4.0
10
0
0
0
B
B
TYP
250
250
100
10
18
MAX
1000
400
100
300
300
300
400
0.9
UNITS
Years
kHz
ms
ms
ms
µs
µs
µs
µs
µs
ns
µs
ns
ns
µs
pF
pF