PT7C4337WEX Pericom Semiconductor, PT7C4337WEX Datasheet - Page 7

• 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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Time Counter
Time digit display (in BCD code):
•
•
•
Note: Any registered imaginary time should be replaced with correct time, otherwise it will cause the clock counter malfunction.
•
This bit is used to select between 12-hour clock system and 24-hour clock system.
This bit is used to select between 12-hour clock operation and 24-hour clock operation.
* Be sure to select between 12-hour and 24-hour clock operation before writing the time data.
PT0205(08/09)
Addr.
(hex)
12, /24
00
01
02
Read / Write
Second digits: Range from 00 to 59 and carried to minute digits when incremented from 59 to 00.
Minute digits: Range from 00 to 59 and carried to hour digits when incremented from 59 to 00.
Hour digits: See description on the /12, 24 bit. Carried to day and day-of-the-week digits when incremented from 11 p.m. to
12 a.m. or 23 to 00.
0
1
12, /24 bit
12, /24
24-hour time display
12-hour time display
Description
(default)
(default)
(default)
Seconds
Minutes
Hours
Description
Data
0
1
24-hour system
12-hour system
D7
0
0
0
0
0
0
Undefined Undefined Undefined Undefined Undefined Undefined Undefined
Undefined Undefined Undefined Undefined Undefined Undefined Undefined
Undefined Undefined Undefined Undefined Undefined Undefined Undefined
12, /24
M40
S40
D6
24-hour clock
00
01
02
03
04
05
06
07
08
09
10
11
H20 or P,/A
M20
S20
D5
7
12-hour clock
52 ( AM 12 )
41 ( AM 01 )
42 ( AM 02 )
43 ( AM 03 )
44 ( AM 04 )
45 ( AM 05 )
46 ( AM 06 )
47 ( AM 07 )
48 ( AM 08 )
49 ( AM 09 )
50 ( AM 10 )
51 ( AM 11 )
M10
H10
S10
D4
Description
Hours register
Real-time Clock Module (I
M8
D3
H8
S8
24-hour clock
12
13
14
15
16
17
18
19
20
21
22
23
M4
D2
H4
S4
12-hour clock
61 ( PM 01 )
62 ( PM 02 )
63 ( PM 03 )
64 ( PM 04 )
65 ( PM 05 )
66 ( PM 06 )
67 ( PM 07 )
68 ( PM 08 )
69 ( PM 09 )
70 ( PM 10 )
71 ( PM 11 )
72 ( PM 12)
M2
D1
H2
S2
Data Sheet
PT7C4337
2
C Bus)
M1
D0
H1
S1
Ver: 4