MCP4332-503E/ST Microchip Technology, MCP4332-503E/ST Datasheet - Page 57

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MCP4332-503E/ST

Manufacturer Part Number
MCP4332-503E/ST
Description
IC DGTL POT QUAD 50K 14TSSOP
Manufacturer
Microchip Technology
Datasheet

Specifications of MCP4332-503E/ST

Taps
129
Resistance (ohms)
50K
Number Of Circuits
4
Temperature Coefficient
150 ppm/°C Typical
Memory Type
Volatile
Interface
SPI Serial
Voltage - Supply
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
14-TSSOP
Resistance In Ohms
50K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
7.6
Read Data
Normal and High Voltage
The Read command is a 16-bit command. The format
of the command is shown in
Figure
7-4.
The first 6 bits of the Read command determine the
address and the command. The 7th clock will output
the CMDERR bit on the SDO pin. The remaining
9-clocks the device will transmit the 9 data bits (D8:D0)
of the specified address (AD3:AD0).
Figure 7-4
shows the SDI and SDO information for a
Read command.
COMMAND BYTE
A
A
A
A
1
1
X
X
SDI
D
D
D
D
3
2
1
0
1
1
1
1
1
1
1
D
SDO
8
1
1
1
1
1
1
0
0
FIGURE 7-4:
Read Command – SDI and SDO States.
 2010 Microchip Technology Inc.
MCP433X/435X
7.6.1
SINGLE READ
The read operation requires that the CS pin be in the
active state (V
IL
the inactive state (V
(V
or V
). The 16-bit Read command (command
IL
IHH
byte and data byte) is then clocked in on the SCK and
SDI pins. The SDO pin starts driving data on the 7th bit
(CMDERR bit) and the addressed data comes out on
the 8th through 16th clocks.
Figure 6-3
show possible waveforms for a single read.
DATA BYTE
X
X
X
X
X
X
X
X
D
D
D
D
D
D
D
D
Valid Address/Command combination
7
6
5
4
3
2
1
0
0 Attempted Memory Read of Reserved
0
0
0
0
0
0
0
Memory location
READ DATA
or V
). Typically, the CS pin will be in
IHH
) and is driven to the active state
IH
Figure 6-2
through
DS22242A-page 57

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