DS1856E-050 Maxim Integrated Products, DS1856E-050 Datasheet - Page 21

• 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

nally Calibrated Monitors and Password Protection
Dual, Temperature-Controlled Resistors with Inter-
A2D Value
Status
Mon3 Meas................ <R-all><W-NA><0000h> Unsigned voltage measurement.
Reserved .................... <R-all><W-NA><0000h>
Status ......................... <R-all><W-see bits><conditional>
a)
b) Soft Hiz.............. <R-all><W-all><0b> Setting this bit will make resistor outputs high
c)
d) TxF ................... <R-all><W-NA><conditional> Reflects the logic level to be output on pin Out1.
e)
f)
Update ....................... <R-all/W-all><00h> Status of completed conversions. At Power-On,
a)
b) V
c)
d) Mon2 Rdy.......... Mon2 conversion is ready.
e)
Alarm
a)
b) Temp Lo ............ Low Alarm Status for Temperature measurement.
c)
d) V
e)
f)
g) MON2 Hi........... High Alarm Status for MON2 measurement.
h) MON2 Lo .......... Low Alarm Status for MON2 measurement.
Alarm
a)
b) MON3 Lo .......... Low Alarm Status for MON3 measurement.
c)
Reserved .................... <R-all><W-NA><00h>.
Warning
a)
b) Temp Lo ............ Low Warning Status for Temperature measurement.
c)
1
Rhiz.................... <R-all><W-NA><1b> High when resistor outputs are high impedance.
Reserved ............ <R-all><W-NA><0b>
RxL ................... <R-all><W-NA><conditional> Reflects the logic level to be output on pin Out2.
Rdyb................... <R-all><W-NA>< V
Temp Rdy .......... Temperature conversion is ready.
Mon1 Rdy.......... Mon1 conversion is ready.
Mon3 Rdy.......... Mon3 conversion is ready.
Temp Hi............. High Alarm Status for Temperature measurement.
V
MON1 Hi........... High Alarm Status for MON1 measurement.
MON1 Lo .......... Low Alarm Status for MON1 measurement.
MON3 HI........... High Alarm Status for MON3 measurement.
Mint ................... Maskable Interrupt. If an alarm is present and the alarm is enabled then
Temp Hi............. High Warning Status for Temperature measurement.
V
0
1
CC
CC
CC
CC
....................... <R-all><W-NA><10h> High Alarm Status bits.
....................... <R-all><W-NA><00h> Low Alarm Status bits.
0
Rdy............. V
Hi .............. High Alarm Status for V
Lo .............. Low Alarm Status for V
................... <R-all><W-NA><00h> High Warning Status bits.
Hi ............. High Warning Status for V
____________________________________________________________________
supply is below the POA trip point value. It clears itself when a V
measurement is completed and the value is above the low threshold.
impedance.
above the Power-On-Analog (POA) trip point, this bit is active LOW.
Thus, this bit reads a logic One if the supply is below POA or too low
to communicate over the 2-wire bus.
these bits are cleared and will be set as each conversion is completed.
These bits can be cleared so that a completion of a new conversion
may be verified.
this bit is high. Otherwise this bit is a zero.
CC
conversion is ready.
CC
dependant > Ready Bar. When the supply is
Register Descriptions (continued)
CC
CC
CC
measurement. This bit is set when the V
measurement.
measurement.
CC
CC
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