ds1859 Maxim Integrated Products, Inc., ds1859 Datasheet - Page 9

• Manufacturer Part Number: ds1859
• Description: Ds1859 Dual, Temperature-controlled Resistors With Internally Calibrated Monitors
• Manufacturer: Maxim Integrated Products, Inc.

Figure 1. Block Diagram
MON1
MON2
MON3
WPEN
OUT1
OUT2
GND
SDA
SCL
V
IN1
IN2
CC
Dual, Temperature-Controlled Resistors with
LOS
V
Tx FAULT
V
CC
CC
ADEN ADFIX
INTERFACE
INTERNAL
ADDRESS
DEVICE
2-WIRE
TEMP
V
CC
INV1
R/W
R
MINT
INV2
WPEN
MPEN
AD (AUXILIARY DEVICE ENABLE A0h)
MD (MAIN DEVICE ENABLE)
DEVICE ADDRESS
ADDRESS
DATA BUS
MUX
CTRL
MUX
APEN
TxF
RxL
CALIBRATION
INTERNAL
ADDRESS
PROT AUX
PROT MAIN
_____________________________________________________________________
ADDRESS
R/W
TxF
WARNING FLAGS
R/W
SHIFTING
CTRL
12-BIT
A/D
RIGHT
Internally Calibrated Monitors
ADC
PROT
MAIN
NOT PROTECTED
MEASUREMENT
COMP CTRL
PROT
AUX
96 x 8 BIT
32 x 8 BIT
STANDARDS
EEPROM
00h-5Fh
60h-7Fh
128 x 8 BIT
LIMITS
SRAM
EEPROM
00h-7Fh
MD
ALARM FLAGS
AD
MEASUREMENT
ALARM FLAGS
WARNING FLAGS
DS1859
MONITORS LIMIT
MONITORS LIMIT
ADDRESS
MONITORS LIMIT HIGH
TABLE SELECT
TEMP INDEX
SELECT
MINT (BIT)
TABLE
COMPARATOR
HIGH
R/W
LOW
MONITORS LIMIT LOW
PROT
MAIN
RESISTOR 0
72 x 8 BIT
TABLE 02
LOOK-UP
EEPROM
80h-C7h
TABLE
DEVICE ADDRESS
TEMP INDEX
MD
TABLE SELECT
ADDRESS
ADDRESS
SELECT
TABLE
R/W
PROT
MAIN
MASKING (TMP, V
16 x 8 BIT
TABLE 01
EEPROM
80h-8Fh
VENDOR
PROT
MAIN
MD
RESISTOR 1
50k OR 20k FULL SCALE
256 POSITIONS
RESISTOR 0
50k OR 20k FULL SCALE
256 POSITIONS
RESISTOR 1
72 x 8 BIT
TABLE 03
LOOK-UP
INTERRUPT
EEPROM
80h-C7h
TABLE
R/W
TEMP INDEX
MD
CC
INV1 (BIT)
INV2 (BIT)
APEN (BIT)
MPEN (BIT)
ADEN (BIT)
ADFIX (BIT)
, MON1, MON2, MON3)
MINT
H0
L0
H1
L1
9