ISL22416UFRT10Z Intersil, ISL22416UFRT10Z Datasheet - Page 12

• Manufacturer Part Number: ISL22416UFRT10Z
• Description: IC POT DGTL 128TP LN LP 10-TDFN
• Manufacturer: Intersil
• Series: XDCP™r

Specifications of ISL22416UFRT10Z

• Taps: 128
• Resistance (ohms): 50K
• Number Of Circuits: 1
• Temperature Coefficient: 80 ppm/°C Typical
• Memory Type: Non-Volatile
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 10-TDFN Exposed Pad
• Resistance In Ohms: 50K
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Examples
A. Writing to the IVR
This sequence will write a new value (77h) to the IVR
(non-volatile):
Set the ACR (Addr 02h) for NV write (40h)
Send the ID byte, Instruction Byte, then the Data byte
Set the IVR (Addr 00h) to 77h
Send the ID byte, Instruction Byte, then the Data byte
0 1 0 1 0 0 0 0 1 1 0 0 0 0 1 0 0 1 0 0 0 0 0 0
0 1 0 1 0 0 0 0 1 1 0 0 0 0 0 0 0 1 1 1 0 1 1 1
SCK
SDO
SCK
SDI
SDI
CS
CS
0
0
1
1
0
0
1
1
12
0
0
0
0
0
0
0
0
FIGURE 16. THREE BYTE WRITE SEQUENCE
FIGURE 17. THREE BYTE READ SEQUENCE
(Sent to DI)
(Sent to DI)
0
0
I3
I3
I2
I2
ISL22416
I1
I1
I0
I0
0
0
B. Reading from the WR
This sequence will read the value from the WR (volatile):
Write to ACR first to access the WR
Send the ID byte, Instruction Byte, then the Data byte
Read the data from WR (Addr 00h)
Send the ID byte, Instruction Byte, then Read the Data byte
0 1 0 1 0 0 0 0 1 1 0 0 0 0 1 0 1 1 0 0 0 0 0 0
0 1 0 1 0 0 0 0 1 0 1 1 0 0 0 0 x x x x x x x x
0
0
R1 R0
R1 R0
0
0
D6 D5 D4
D6 D5 D4
DON’T CARE
D3 D2
D3 D2
D1 D0
D1 D0
(Sent to DI)
(Out on DO)
September 9, 2009
FN6227.2