MAX5477 查看數據表（PDF） - Maxim Integrated
零件编号
产品描述 (功能)
生产厂家
MAX5477 Datasheet PDF : 16 Pages
| |||
Dual, 256-Tap, Nonvolatile, I2C-Interface,
Digital Potentiometers
Pin Description
PIN
TSSOP THIN QFN
1
15
2
14
3
13
4
12
5
11
6
10
NAME
HA
WA
LA
HB
WB
LB
Potentiometer A High Terminal
Potentiometer A Wiper Terminal
Potentiometer A Low Terminal
Potentiometer B High Terminal
Potentiometer B Wiper Terminal
Potentiometer B Low Terminal
FUNCTION
Write-Protect Input. Connect to GND to allow changes to the wiper position and the data stored
7
9
WP in the EEPROM. Connect to VDD or leave unconnected to enable the write protection of the
EEPROM. See the Write Protect (WP) section for operating instructions.
8
7
GND Ground
9
6
A2 Address Input 2. Connect to VDD or GND (see Table 1).
10
5
A1 Address Input 1. Connect to VDD or GND (see Table 1).
11
4
A0 Address Input 0. Connect to VDD or GND (see Table 1).
12
3
SDA I2C Serial Data
13
2
SCL I2C Clock Input
14
1
VDD
Power-Supply Input. Connect a +2.7V to +5.25V power supply to VDD and bypass VDD to GND
with a 0.1µF capacitor installed as close to the device as possible.
—
8, 16
N.C. No Connection. Do not connect.
—
EP
EP Exposed Paddle. Do not connect.
SDA
tSU:DAT
tLOW
tHD:DAT
SCL
tHIGH
tHD:STA
tR
tF
START
CONDITION
(S)
PARAMETERS ARE MEASURED FROM 30% TO 70%.
Figure 1. I2C Serial-Interface Timing Diagram
tSU:STA
tHD:STA
tBUF
tSU:STO
REPEATED START
CONDITION
(SR)
ACKNOWLEDGE
(A)
STOP
CONDITION
(P)
START
CONDITION
(S)
_______________________________________________________________________________________ 9
Share Link: 