pcf8593 NXP Semiconductors, pcf8593 Datasheet - Page 3

• Manufacturer Part Number: pcf8593
• Description: Low Power Clock/calendar
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1
3 QUICK REFERENCE DATA
4 ORDERING INFORMATION
1997 Mar 25
V
I
I
T
T
PCF8593P
PCF8593T
DD
DD
NUMBER
SYMBOL
I
Clock operating supply voltage (T
1.0 to 6.0 V
8 bytes scratchpad RAM (when alarm not used)
Data retention voltage: 1.0 to 6.0 V
External RESET input resets I
Operating current (f
V
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
Space-saving SO8 package available
Slave address:
– READ A3
– WRITE A2.
amb
stg
DD
Low power clock/calendar
2
C-bus interface operating supply voltage: 2.5 to 6.0 V
DD
TYPE
FEATURES
= 2.0 V): typ. 1 A
supply voltage operating mode
supply current operating mode
supply current clock mode
operating ambient temperature
storage temperature
NAME
DIP8
SO8
scl
PARAMETER
= 0 Hz, 32 kHz time base,
2
C-bus)
plastic dual in-line package; 8 leads (300 mil)
plastic small outline package; 8 leads; body width 3.9 mm
2
C interface (only)
amb
= 0 to +70 C):
I
I
f
f
f
2
2
scl
scl
scl
C-bus active
C-bus inactive
= 100 kHz
= 0 Hz; V
= 0 Hz; V
DESCRIPTION
CONDITIONS
3
PACKAGE
2
The PCF8593 is a CMOS clock/calendar circuit, optimized
for low power consumption. Addresses and data are
transferred serially via the two-line bidirectional I
The built-in word address register is incremented
automatically after each written or read data byte.
The built-in 32.768 kHz oscillator circuit and the first 8
bytes of 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.
DD
DD
GENERAL DESCRIPTION
= 5 V
= 2 V
2.5
1.0
40
65
MIN.
4.0
1.0
TYP.
Product specification
6.0
6.0
200
15.0
8.0
+85
+150
MAX.
PCF8593
VERSION
SOT97-1
SOT96-1
2
V
V
C-bus.
C
C
A
A
A
UNIT