pcf8583 NXP Semiconductors, pcf8583 Datasheet - Page 3

• Manufacturer Part Number: pcf8583
• Description: Clock/calendar With 240 X 8-bit Ram
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1
3
4
1997 Jul 15
V
I
I
T
T
PCF8583P
PCF8583T
DD
DDO
amb
stg
I
Clock operating supply voltage (0 to +70 C):
1.0 V to 6.0 V
240
Data retention voltage: 1.0 V to 6 V
Operating current (at f
Clock function with four year calendar
Universal timer with alarm and overflow indication
24 or 12 hour format
32.768 kHz or 50 Hz time base
Serial input/output bus (I
Automatic word address incrementing
Programmable alarm, timer and interrupt function
Slave address:
– READ: A1 or A3
– WRITE: A0 or A2.
DD
NUMBER
Clock/calendar with 240
SYMBOL
2
C-bus interface operating supply voltage: 2.5 V to 6 V
FEATURES
QUICK REFERENCE DATA
ORDERING INFORMATION
TYPE
8-bit low-voltage RAM
supply voltage operating mode
supply current operating mode
supply current clock mode
operating ambient temperature range
storage temperature range
NAME
DIP8
SO8
SCL
2
C)
PARAMETER
= 0 Hz): max. 50 A
plastic dual in-line package; 8 leads (300 mil)
plastic small outline package; 8 leads; body width 7.5 mm
8-bit RAM
I
I
f
f
f
2
2
SCL
SCL
SCL
DESCRIPTION
C-bus active
C-bus inactive
3
= 100 kHz
= 0 Hz; V
= 0 Hz; V
2
The PCF8583 is a clock/calendar circuit based on a
2048-bit static CMOS RAM organized as 256 words by
8 bits. Addresses and data are transferred serially via the
two-line bidirectional I
register is incremented automatically after each written or
read data byte. Address pin A0 is used for programming
the hardware address, allowing the connection of two
devices to the bus without additional hardware.
The built-in 32.768 kHz oscillator circuit and the first
8 bytes of the RAM are used for the clock/calendar and
counter functions. The next 8 bytes may be programmed
as alarm registers or used as free RAM space.
The remaining 240 bytes are free RAM locations.
PACKAGE
CONDITION
GENERAL DESCRIPTION
DD
DD
= 5 V
= 1 V
2
2.5
1.0
C-bus. The built-in word address
MIN.
40
65
10
2
TYP.
Product specification
6.0
6.0
200
50
10
+85
+150
PCF8583
MAX.
SOT176-1
VERSION
SOT97-1
V
V
C
C
UNIT
A
A
A