DS1858E-050+ Maxim Integrated Products, DS1858E-050+ Datasheet - Page 21

• Manufacturer Part Number: DS1858E-050+
• Description: IC RES TEMP 50/50K 3MON 16-TSSOP
• Manufacturer: Maxim Integrated Products

Specifications of DS1858E-050+

• Taps: 256
• Resistance (ohms): 50K
• Number Of Circuits: 2
• Temperature Coefficient: 50 ppm/°C Typical
• Memory Type: Non-Volatile
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 95°C
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP
• Resistance In Ohms: 50K
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 5. 2-Wire Data Transfer Protocol
SDA
SCL
devices on the bus is to be accessed. When read-
ing or writing the DS1858, the device-select bits
must match one of two valid device addresses,
00h or the address registered in Table 01 location
8Ch. The last bit of the command/control byte
(R/W) defines the operation to be performed.
When set to a ‘1’ a read operation is selected, and
when set to a ‘0’ a write operation is selected. The
slave address can be set by the EEPROM.
CONDITION
START
MSB
1
2
SLAVE ADDRESS
6
____________________________________________________________________
Resistors with Three Monitors
7
Dual Temperature-Controlled
DIRECTION
R/W
BIT
8
SIGNAL FROM RECEIVER
ACKNOWLEDGEMENT
ACK
9
Following the start condition, the DS1858 monitors the
SDA bus checking the device type identifier being
transmitted. Upon receiving the 1010 control code, the
appropriate device address bits, and the read/write bit,
the slave device outputs an acknowledge signal on the
SDA line.
TRANSISTOR COUNT: 44149
SUBSTRATE CONNECTED TO GROUND
1
2
REPEATED IF MORE BYTES
ARE TRANSFERRED
3–7
SIGNAL FROM RECEIVER
ACKNOWLEDGEMENT
8
ACK
9
Chip Topology
OR REPEATED
CONDITION
CONDITION
START
STOP
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