PT7C4311WEX Pericom Semiconductor, PT7C4311WEX Datasheet - Page 13

• Manufacturer Part Number: PT7C4311WEX
• Description: IC REAL TIME CLK/CALENDAR 8-SOIC
• Manufacturer: Pericom Semiconductor
• Type: Clock/Calendarr

Specifications of PT7C4311WEX

• Memory Size: 56B
• Time Format: Binary
• Date Format: Binary
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 1.2 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
• Other names: PT7C4311WEXTR

|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
DC Electrical Characteristics
(Unless otherwise specified, V
Note:
1.
2.
3.
4.
5.
PT0322(08/09)
V
Sym.
V
V
V
V
V
I
I
I
I
BAT
I
OZ
ST
SO
BAT
IL
CC
OL
CC
IL
IH
After switchover (V
Switch-over and deselect point.
Valid for Ambient Operating Temperature: T
All voltages referenced to GND.
In 3.3V application, if initial battery voltage is ≥ 3.4V, it may be necessary to reduce battery voltage (i.e., through wave
soldering the battery) in order to avoid inadvertent switchover/deselection for VCC – 10% operation.
2
1
Timing data and RAM data
maintaining voltage
Timing data writing voltage
Timing data reading voltage
RAM data writing voltage
RAM data reading voltage
Supply voltage
Battery Back-up Switchover
Voltage
Current consumption
Standby current
Current consumption
Low-level input voltage
High-level input voltage
Low-level output voltage
Pull-up Supply voltage
(Open drain)
Input leakage current
Output current when OFF
3,4
Description
SO
), V
CC
BAT
= 1.5 ~ 5.5 V, T
(min) can be 2.0V for crystal with R
VCC
VCC
VCC
VCC
VCC
VBAT
-
VCC
VCC
VBAT
-
-
SDA
FT/
OUT
SCL
SDA
Pin
A
A
= -40 °C to +85 °C.)
= -40 to 85°C; V
-
-
-
-
-
-
Switch freq. = 100kHz
SDA, SCL = V
OSC on, V
T
-
-
I
-
0<V
0<V
OL
A
=25°C
= 3mA
IN
OUT
<V
<V
CC
CC
CC
13
= 0V, V
Condition
CC
CC
S
– 0.3V
=40kΩ.
= 2.0 to 5.5V (except where noted).
BAT
= 3V,
Real-time Clock Module (I
V
0.7V
0.80
Min
-0.3
BAT
1.2
1.5
1.5
3.0
1.5
2.0
-
-
-
-
-
-
-
CC
-
V
0.50
Typ
650
BAT
3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Data Sheet
0.3V
V
0.30
PT7C4311
Max
300
800
+0.5
BAT
5.5
5.5
5.5
5.5
5.5
V
0.4
5.5
5.5
±1
±1
70
CC
CC
5
2
-
C Bus)
Unit
Ver: 2
µA
µA
µA
µA
nA
V
V
V
V
V