DS1856E-050 Maxim Integrated Products, DS1856E-050 Datasheet - Page 8

• Manufacturer Part Number: DS1856E-050
• Description: Digital Potentiometer ICs
• Manufacturer: Maxim Integrated Products

Specifications of DS1856E-050

• Number Of Pots: Dual
• Taps Per Pot: 256
• Resistance: 50 KOhms
• Wiper Memory: Non Volatile
• Digital Interface: Serial (2-Wire)
• Operating Supply Voltage: 3.3 V, 5 V
• Supply Current: 2 mA
• Maximum Operating Temperature: + 95 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.85 V
• Package / Case: TSSOP-16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Dual, Temperature-Controlled Resistors with Inter-
nally Calibrated Monitors and Password Protection
8
The user can read the registers that monitor the V
MON1, MON2, MON3, and temperature analog signals.
After each signal conversion, a corresponding bit is set
that can be monitored to verify that a conversion has
occurred. The signals also have alarm and warning flags
that notify the user when the signals go above or below
the user-defined value. Interrupts can also be set for
each signal.
PIN
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
_____________________________________________________________________
BALL
B2
A2
C3
A1
B1
C2
C1
D1
D3
D4
C4
D2
B3
B4
A4
A3
NAME
MON1
MON2
MON3
OUT1
OUT2
GND
SDA
SCL
N.C.
V
IN1
IN2
H0
H1
L0
L1
CC
Detailed Description
2-Wire Serial Data I/O Pin. Transfers serial data to and from the device.
2-Wire Serial Clock Input. Clocks data into and out of the device.
Open-Drain Buffer Output
TTL/CMOS-Compatible Input to Buffer
Open-Drain Buffer Output
TTL/CMOS-Compatible Input to Buffer
No Connection
Ground
External Analog Input
External Analog Input
External Analog Input
Low-End Resistor 0 Terminal. It is not required that the low-end terminals be connected to a potential
less than the high-end terminals of the corresponding resistor. Voltage applied to any of the resistor
terminals cannot exceed the power-supply voltage, V
High-End Resistor 0 Terminal. It is not required that the high-end terminals be connected to a
potential greater than the low-end terminals of the corresponding resistor. Voltage applied to any of
the resistor terminals cannot exceed the power-supply voltage, V
Low-End Resistor 1 Terminal
High-End Resistor 1 Terminal
Supply Voltage
CC
,
The position values of each resistor can be indepen-
dently programmed. The user can assign a unique
value to each resistor for every 2°C increment over the
-40°C to +102°C range.
Two buffers are provided to convert logic-level inputs
into open-drain outputs. Typically, these buffers are
used to implement transmit (Tx) fault and loss-of-signal
(LOS) functionality. Additionally, OUT1 can be asserted
in the event that one or more of the monitored values
go beyond user-defined limits.
FUNCTION
CC
, or go below ground.
CC
, or go below ground.
Pin Description