DS1847E-050 Maxim Integrated Products, DS1847E-050 Datasheet - Page 5

• Manufacturer Part Number: DS1847E-050
• Description: Digital Potentiometer ICs
• Manufacturer: Maxim Integrated Products

Specifications of DS1847E-050

• Number Of Pots: Dual
• Taps Per Pot: 256
• Resistance: 10 KOhms, 50 KOhms
• Wiper Memory: Non Volatile
• Digital Interface: Serial (2-Wire)
• Operating Supply Voltage: 3.3 V, 5 V
• Supply Current: 1 mA
• Maximum Operating Temperature: + 95 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 3 V
• Package / Case: TSSOP-14
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Memory
Location
E2h
E3h
E4h
E5h to E6h
E7h
E8h to EFh
F0h
F1h
F2h to FFh
User Memory
User Memory
User memory
Name of Location
Temperature MSB
Temperature LSB
Address Pointer
Address Select
Resistor 0 Setting
Resistor 1 Setting
5 of 17
Function of Location
This byte contains the MSB of the 13-bit 2s
complement temperature output from the
temperature sensor.
complement temperature output from the
temperature sensor.
For example temperature readings, refer to Table
2.
Calculated, current resistor address (0h – 47h).
The user-defined resistor setting at this location in
the respective look-up table will be loaded into
F0h and F1h to set the two resistors.
General purpose user memory (SRAM)
Internal or external device address select. This
byte allows the user to use the external address
pins or an internal register location to determine
the device address.
ENB = 0 and external A2, A1, A0 grounded,
device will use internal address bits (A2, A1, A0)
in this register
ENB = 1, external A2, A1, A0 = any setting,
device will use external address pins
Default setting is 01h. The device uses external
pins to determine its address.
General purpose user memory (SRAM)
In the user-controlled setting mode, this block
contains the resistor 0 setting.
In the user-controlled setting mode, this block
contains the resistor 1 setting.
General purpose user memory (SRAM)
This byte contains the LSB of the 13-bit 2s
2
S 2
0
2
-1
7
2
2
6
-2
2
2
5
-3
A2 A1 A0 ENB
2
2
4
-4
2
X X X
3
2
2
2
1