Rainbow Electronics DS1855 - Manual (Page 3)

DS1855
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DS1855 BLOCK DIAGRAM Figure 1
Up to eight DS1855s can be installed on a single 2-wire bus. Access to an individual device is achieved
by using a device address that is determined by the logic levels of address pins A0 through A2.
Additionally, the DS1855 will operate from 3V or 5V supplies. Three package options are available: 14-
pin TSSOP, 16-ball STPBGA, and flip-chip package.
V
CC
GND
SDA
SCL
WP
A0
A1
A2
H0
W0
L0
H1
W1
L1
248 BYTES
EEPROM
MEMORY
1 BYTE WIPER
SETTING
POT 0
1 BYTE WIPER
SETTING
POT 1
CONFIGURATION
BYTE
LOCK BYTE
LOCK BYTE
RESERVED
CONTROL
DATA
POTENTIOMETER 0
2-WIRE
INTERFACE
POTENTIOMETER 1
100-
Position
Pot
256-
Position
Pot