PCF8591 Просмотр технического описания (PDF) - Philips Electronics
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PCF8591 Datasheet PDF : 28 Pages
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Philips Semiconductors
8-bit A/D and D/A converter
5 BLOCK DIAGRAM
Product specification
PCF8591
handbook, full pagewidth
SCL
SDA
A0
A1
A2
EXT
VDD
VSS
OSC
AIN0
AIN1
AIN2
AIN3
AOUT
I2C BUS
INTERFACE
PCF8591
POWER ON
RESET
OSCILLATOR
STATUS
DAC DATA ADC DATA
REGISTER REGISTER REGISTER
CONTROL
LOGIC
ANALOGUE
MULTIPLEXER
SAMPLE
AND
HOLD
SAMPLE
AND
HOLD
COMPARATOR
SUCCESSIVE
APPROXIMATION
REGISTER/LOGIC
DAC
VREF
AGND
MBL821
Fig.1 Block diagram.
6 PINNING
SYMBOL
AINO
AIN1
AIN2
AIN3
A0
A1
A2
VSS
SDA
SCL
OSC
EXT
AGND
VREF
AOUT
VDD
PIN
DESCRIPTION
1 analog inputs (A/D converter)
2
3
4
5 hardware address
6
7
8 negative supply voltage
9 I2C-bus data input/output
10 I2C-bus clock input
11 oscillator input/output
12 external/internal switch for
oscillator input
13 analog ground
14 voltage reference input
15 analog output (D/A converter)
16 positive supply voltage
handbook, halfpage
AIN0 1
AIN1 2
16 VDD
15 AOUT
AIN2 3
14 VREF
AIN3 4
13 AGND
PCF8591P
A0 5
12 EXT
A1 6
11 OSC
A2 7
10 SCL
VSS 8
9 SDA
MBL822
Fig.2 Pinning diagram (DIP16).
2003 Jan 27
4
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