MCP4161-502E/SN Microchip Technology, MCP4161-502E/SN Datasheet - Page 57

• Manufacturer Part Number: MCP4161-502E/SN
• Description: IC POT DGTL SNGL 5K SPI 8SOIC
• Manufacturer: Microchip Technology

Specifications of MCP4161-502E/SN

• Package / Case: 8-SOIC (3.9mm Width)
• Taps: 257
• Resistance (ohms): 5K
• Number Of Circuits: 1
• Temperature Coefficient: 150 ppm/°C Typical
• Memory Type: Non-Volatile
• Interface: SPI Serial
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Resistance In Ohms: 5K
• Number Of Pots: Single
• Taps Per Pot: 256
• Resistance: 5 KOhms
• Wiper Memory: Non Volatile
• Digital Interface: Serial (4-Wire, SPI)
• Operating Supply Voltage: 2.5 V, 3.3 V, 5 V
• Supply Current: 550 uA
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.8 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

7.9
This command is a special case of the High Voltage
Decrement Wiper
commands to the non-volatile memory locations 02h,
03h, and 0Fh. This command is used to enable or
disable either the software Write Protect, wiper 0
WiperLock Technology, or wiper 1 WiperLock Technol-
ogy.
Voltage command and the result of those commands
on the non-volatile WP, WL0, 0r WL1 bits. The format
of the command is shown in
Figure 7-6
TABLE 7-6:
© 2008 Microchip Technology Inc.
Note 1:
05h - 0Eh
Table 7-6
Address
Memory
04h
00h
01h
02h
03h
0Fh
Modify Write Protect or WiperLock
Technology (High Voltage)
Enable and Disable
(1)
(Disable).
Reserved addresses: Increment or Decrement commands are invalid for these addresses.
(1)
shows the memory addresses, the High
ADDRESS MAP TO MODIFY WRITE PROTECT AND WIPERLOCK TECHNOLOGY
and High Voltage
High Voltage
Wiper 0 register is decremented
Wiper 1 register is decremented
WL0 is enabled
WL1 is enabled
TCON register not changed, CMDERR bit is set TCON register not changed, CMDERR bit is set
Reserved
WP is enabled
Figure 7-8
Decrement Wiper
Increment Wiper
(Enable) or
MCP414X/416X/424X/426X
Command’s and Result
7.9.1
Figure 6-7
waveforms for a single Modify Write Protect or
WiperLock Technology command.
A Modify Write Protect or WiperLock Technology
Command will only start an EEPROM write cycle (t
after a properly formatted Command (8-clocks) has
been received and the CS pin transitions to the inactive
state (V
After the CS pin is driven inactive (V
interface may immediately be re-enabled by driving the
CS pin to the active state (V
During an EEPROM write cycle, only serial commands
to Volatile memory (addresses 00h, 01h, 04h, and 05h)
are accepted. All other serial commands are ignored
until the EEPROM write cycle (t
allows the Host Controller to operate on the Volatile
Wiper registers and the TCON register, and to Read
the Status Register. The EEWA bit in the Status register
indicates the status of an EEPROM Write Cycle.
High Voltage
Wiper 0 register is incremented
Wiper 1 register is incremented
WL0 is disabled
WL1 is disabled
Reserved
WP is disabled
IH
).
SINGLE ENABLE WRITE PROTECT
OR WIPERLOCK TECHNOLOGY
(HIGH VOLTAGE)
through
Increment Wiper
Figure 6-8
IL
or V
IHH
wc
) completes. This
DS22059B-page 57
).
show
IH
), the serial
possible
wc
)