PHILIPS 08+ 环保产品
1 FEATURES
· I2C-bus interface operating supply voltage: 2.5 V to 6 V
· Clock operating supply voltage (0 to +70 °C):
1.0 V to 6.0 V
· 240 ´ 8-bit low-voltage RAM
· Data retention voltage: 1.0 V to 6 V
· Operating current (at fSCL = 0 Hz): max. 50 mA
· 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 (I2C)
· Automatic word address incrementing
· Programmable alarm, timer and interrupt function
· Sl***e address:
– READ: A1 or A3
– WRITE: A0 or A2.
2 GENERAL DESCRIPTION
The PCF8583 is a clock/calendar circuit based on a
2048-bit static CMOS RAM organized as 256 wo*** by
8 bits. Addresses and data are transferred serially via the
two-line bidirectional I2C-bus. The built-in word address
register is incremented automatically after each written or
read data byte. Address pin A0 is used for programming
the ha***are address, allowing the connection of two
devices to the bus without additional ha***are.
The built-in 32.768 kHz oscillator circuit and the first
8 bytes of the RAM are used for the clock/calendar and
counter functi***. The next 8 bytes may be programmed
as alarm registers or used as free RAM space.
The remaining 240 bytes are free RAM locati***.
3 QUICK REFERENCE DATA
4 ORDERING INFORMATION
SYMBOL PARAMETER CONDITION MIN. TYP. MAX. UNIT
VDD supply voltage operating mode I2C-bus active 2.5 - 6.0 V
I2C-bus inactive 1.0 - 6.0 V
IDD supply current operating mode fSCL = 100 kHz - - 200 mA
IDDO supply current clock mode fSCL = 0 Hz; VDD = 5 V - 10 50 mA
fSCL = 0 Hz; VDD = 1 V - 2 10 mA
Tamb operating ambient temperature range -40 - +85 °C
Tstg storage temperature range -65 - +150 °C
TYPE
NUMBER
PACKAGE
NAME DESCRIPTION VERSION
PCF8583P DIP8 plastic dual in-line package; 8 leads (300 mil) SOT97-1
PCF8583T SO8 plastic ***all outline package; 8 leads; body width 7.5 mm SOT176-1