PT7C4337WEX Pericom Semiconductor, PT7C4337WEX Datasheet - Page 19

• Manufacturer Part Number: PT7C4337WEX
• Description: IC REAL TIME CLK/CALENDAR 8-SOIC
• Manufacturer: Pericom Semiconductor
• Type: Clock/Calendar/Alarmr

Specifications of PT7C4337WEX

• Time Format: Binary
• Date Format: Binary
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Other names: PT7C4337WEXTR

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AC Electrical Characteristics
Over the operating range
* Note: only reference for design
PT0205(08/09)
f
t
t
t
t
t
t
t
t
t
t
t
t
C
Signal
SU;STA
HD;STA
SU;DAT
HD;DAT1
HD;DAT2
SU;STO
BUF
LOW
HIGH
r
f
SP
SCL
Symbol
B
*
SCL
SDA
Sym
V
Sr
V
S
HM
HL
t
HD;STA
Start condition
Restart condition
SCL clock frequency
START condition set-up time
START condition hold time
Data set-up time (RTC read/write)
Data hold time (RTC write)
Data hold time (RTC read)
STOP condition setup time
Bus idle time between a START and STOP condition
When SCL = "L"
When SCL = "H"
Rise time for SCL and SDA
Fall time for SCL and SDA
Allowable spike time on bus
Capacitance load for each bus line
t
f
S
Rising and falling threshold voltage high
Rising and falling threshold voltage low
t
LOW
f
SCL
t
SU;DAT
P
Stop condition
t
HIGH
Item
Description
t
HD;DAT
19
Sr
t
SU;STA
t
HD;STA
Real-time Clock Module (I
Min.
t
r
200
0.6
0.6
0.6
1.3
1.3
0.6
35
0
t
SP
t
SU;STO
0.8 V
0.2 V
V
V
Typ.
Value
HM
LM
CC
CC
P
t
BUF
Max.
t
Data Sheet
t
SU;STA
400
400
HD;STA
0.3
0.3
50
PT7C4337
Unit
2
V
V
C Bus)
Unit
Ver: 4
kHz
pF
µs
µs
ns
ns
µs
µs
µs
µs
µs
µs
µs
ns