MCP4351-103E/ST

Manufacturer Part NumberMCP4351-103E/ST
DescriptionIC DGTL POT QUAD 10K 20TSSOP
ManufacturerMicrochip Technology
MCP4351-103E/ST datasheet
 

Specifications of MCP4351-103E/ST

Taps257Resistance (ohms)10K
Number Of Circuits4Temperature Coefficient150 ppm/°C Typical
Memory TypeVolatileInterfaceSPI Serial
Voltage - Supply1.8 V ~ 5.5 VOperating Temperature-40°C ~ 125°C
Mounting TypeSurface MountPackage / Case20-TSSOP
Resistance In Ohms10KLead Free Status / RoHS StatusLead free / RoHS Compliant
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6.2
The SPI Modes
The SPI module supports two (of the four) standard SPI
modes. These are Mode 0,0 and 1,1. The mode is
determined by the state of the SDI pin on the rising
edge of the 1st clock bit (of the 8-bit byte).
6.2.1
MODE 0,0
In Mode 0,0: SCK Idle state = low (V
), data is clocked
IL
in on the SDI pin on the rising edge of SCK and clocked
out on the SDO pin on the falling edge of SCK.
V
V
IHH
IH
CS
V
IL
SCK
Write to
SSPBUF
SDO
bit15 bit14 bit13 bit12 bit11 bit10 bit9
AD3
AD2 AD1
AD0
SDI
bit15 bit14 bit13 bit12
Input
Sample
FIGURE 6-2:
16-Bit Commands (Write, Read) – SPI Waveform (Mode 1,1).
V
IHH
V
IH
CS
V
IL
SCK
Write to
SSPBUF
SDO
bit15
bit14 bit13 bit12 bit11
AD3
AD2
AD1
AD0
SDI
bit15 bit14 bit13 bit12
Input
Sample
FIGURE 6-3:
16-Bit Commands (Write, Read) – SPI Waveform (Mode 0,0).
 2010 Microchip Technology Inc.
6.2.2
MODE 1,1
In Mode 1,1: SCK Idle state = high (V
clocked in on the SDI pin on the rising edge of SCK and
clocked out on the SDO pin on the falling edge of SCK.
6.3
SPI Waveforms
Figure 6-2
through
command waveforms.
read and write commands.
are Increment and Decrement commands. Support of
High Voltage commands allows circuit compatibility
with the corresponding nonvolatile device.
CMDERR bit
bit8
bit7
bit6
bit5
X
D8
D7
D6
D5
bit9
bit8
bit7
bit6
bit5
C1
C0
CMDERR bit
bit10 bit9
bit8
bit7
bit6
bit5
bit4
X
D8
D7
D6
D5
D4
bit9
bit8
bit7
bit6
bit5
bit4
C1
C0
MCP433X/435X
), data is
IH
Figure 6-5
show the different SPI
Figure 6-2
and
Figure 6-3
are
Figure 6-4
and
Figure 6-5
bit4
bit3
bit2
bit1
bit0
D4
D3
D2
D1
D0
bit4
bit3
bit2
bit1
bit0
bit3
bit2
bit1
bit0
D3
D2
D1
D0
bit3
bit2
bit1
bit0
DS22242A-page 49