PT7C4337WEX Pericom Semiconductor, PT7C4337WEX Datasheet - Page 4

• 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

(hex)
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Registers
Allocation of registers
Caution points:
*1. PT7C4337 uses 8 bits for address. For excess 0FH address, PT7C4337 will not respond (no acknowledge signal was given).
*2. Alarm 1 mask bits. Select alarm repeated rate when an alarm occurs.
*3. Alarm 2 mask bits. Select alarm repeated rate when an alarm occurs.
*4. Oscillator and time count chain enable/disable bit.
*5. Square wave output frequency select.
*6. Interrupt output pin select bit.
*7. Alarm 1 and alarm 2 enable bits.
*8. Alarm 1 and alarm 2 flag bits.
*9. Oscillator stop flag.
*10. All bits marked with "0" are read-only bits. Their value when read is always "0".
PT0205(08/09)
Addr.
0A
0D
0B
0C
00
01
02
03
04
05
06
07
08
09
0E
0F
*1
Seconds (00-59)
Minutes (00-59)
Hours (00-23 / 01-12)
Days of the week (01-07)
Dates (01-31)
Months (01-12)
Years (00-99)
Alarm 1: Seconds
Alarm 1: Minutes
Alarm 1: Hours
Alarm 1: Day, Date
Alarm 2: Minutes
Alarm 2: Hours
Alarm 2: Day, Date
Control
Status
Function
Century
A1M1
A1M2
A1M3
A1M4
A2M2
A2M3
A2M4
/ETIME
OSF
Bit 7
Y80
0
0
0
0
0
*9
*2
*2
*2
*2
*3
*3
*3
*4
12, /24
12, /24
12, /24
/Date
/Date
Bit 6
Day,
Day,
M40
M40
M40
Y40
S40
S40
0
0
0
0
0
H20 or
H20 or
H20 or
P, /A
P, /A
P, /A
Bit 5
M20
M20
M20
D20
Y20
D20
D20
S20
S20
0,
0,
0
0
0
0
4
Register definition
MO10
RS2
Bit 4
M10
M10
M10
H10
D10
Y10
H10
D10
H10
D10
S10
S10
0,
0,
0
0
*5
Real-time Clock Module (I
RS1
MO8
Bit 3
M8
M8
M8
H8
Y8
H8
D8
H8
D8
D8
S8
S8
0,
0,
0
0
*5
INTCN
MO4
Bit 2
W4,
W4,
M4
W4
M4
M4
H4
D4
Y4
H4
D4
H4
D4
S4
S4
0
*6
A2IE
A2F
MO2
Bit 1
W2,
W2,
M2
W2
M2
M2
H2
H2
H2
D2
Y2
D2
D2
S2
S2
Data Sheet
*8
PT7C4337
*7
2
C Bus)
A1IE
A1F
MO1
Bit 0
W1,
W1,
M1
W1
M1
M1
H1
H1
D1
H1
D1
D1
Y1
S1
S1
Ver: 4
*8
*7