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参数资料
型号： MCP4251T-104E/ST
厂商： Microchip Technology
文件页数： 59/59页
文件大小： 0K
描述： IC DGTL POT 100K 2CH 14TSSOP
标准包装： 2,500
接片： 257
电阻（欧姆）： 100k
电路数： 2
温度系数： 标准值 150 ppm/°C
存储器类型： 易失
接口： 4 线 SPI（芯片选择）
电源电压： 1.8 V ~ 5.5 V
工作温度： -40°C ~ 125°C
安装类型： 表面贴装
封装/外壳： 14-TSSOP（0.173"，4.40mm 宽）
供应商设备封装： 14-TSSOP
包装： 带卷 (TR)
其它名称： MCP4251T-104-E/ST
MCP4251T-104-E/STTR
MCP4251T-104-E/STTR-ND
MCP4251T-104E/STTR
2008 Microchip Technology Inc.
DS22060B-page 9
MCP413X/415X/423X/425X
Digital Inputs/Outputs (CS, SDI, SDO, SCK, SHDN)
Schmitt Trigger
High Input
Threshold
VIH
0.45 VDD
——
V
2.7V
≤ VDD ≤ 5.5V
(Allows 2.7V Digital VDD with
5V Analog VDD)
0.5 VDD
——
V
1.8V
≤ VDD ≤ 2.7V
Schmitt Trigger
Low Input
Threshold
VIL
—
0.2VDD
V
Hysteresis of
Schmitt Trigger
Inputs
VHYS
—0.1VDD
—V
High Voltage Limit
VMAX
——
12.5 (6)
V
Pin can tolerate VMAX or less.
Output Low
Voltage (SDO)
VOL
VSS
—0.3VDD
VIOL = 5 mA, VDD = 5.5V
VSS
—0.3VDD
VIOL = 1 mA, VDD = 1.8V
Output High
Voltage (SDO)
VOH
0.7VDD
—VDD
VIOH = -2.5 mA, VDD = 5.5V
0.7VDD
—VDD
VIOL = -1 mA, VDD = 1.8V
Weak Pull-up /
Pull-down Current
IPU
—
1.75
mA
Internal VDD pull-up, VIHH pull-down,
VDD = 5.5V, VCS = 12.5V
—170
—
A
CS pin, VDD = 5.5V, VCS = 3V
CS Pull-up /
Pull-down
Resistance
RCS
—16
—
k
VDD = 5.5V, VCS = 3V
Input Leakage
Current
IIL
-1
—
1
A
VIN = VDD and VIN = VSS
Pin Capacitance
CIN, COUT
—10
—
pF
fC = 20 MHz
RAM (Wiper) Value
Value Range
N
0h
—
1FFh
hex
8-bit device
0h
—
1FFh
hex
7-bit device
POR/BOR Value
N
—
80h
—
hex
8-bit device
—
40h
—
hex
7-bit device
AC/DC CHARACTERISTICS (CONTINUED)
DC Characteristics
Standard Operating Conditions (unless otherwise specified)
Operating Temperature
–40°C
≤ TA ≤ +125°C (extended)
All parameters apply across the specified operating ranges unless noted.
VDD = +2.7V to 5.5V, 5 k, 10 k, 50 k, 100 k devices.
Typical specifications represent values for VDD = 5.5V, TA = +25°C.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Note 1: Resistance is defined as the resistance between terminal A to terminal B.
2: INL and DNL are measured at VW with VA = VDD and VB = VSS.
3: MCP4XX1 only.
4: MCP4XX2 only, includes VWZSE and VWFSE.
5: Resistor terminals A, W and B’s polarity with respect to each other is not restricted.
6: This specification by design.
7: Non-linearity is affected by wiper resistance (RW), which changes significantly over voltage and
temperature.
8: The MCP4XX1 is externally connected to match the configurations of the MCP41X2 and MCP42X2, and
then tested.
9: POR/BOR is not rate dependent.
10: Supply current is independent of current through the resistor network.
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