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Numéro de référence | DS1267 | ||
Description | Dual Digital Potentiometer Chip | ||
Fabricant | Dallas Semiconducotr | ||
Logo | |||
1 Page
www.dalsemi.com
DS1267
Dual Digital Potentiometer Chip
FEATURES
§ Ultra-low power consumption, quiet,
pumpless design
§ Two digitally controlled, 256-position
potentiometers
§ Serial port provides means for setting and
reading both potentiometers
§ Resistors can be connected in series to
provide increased total resistance
§ 14-pin DIP, 16-pin SOIC, 20-pin TSSOP
packages
§ Resistive elements are temperature
compensated to ±0.3 LSB relative linearity
§ Standard resistance values:
– DS1267-10 ~ 10 kΩ
– DS1267-50 ~ 50 kΩ
– DS1267-100 ~ 100 kΩ
§ Operating Temperature Range:
– Industrial: -40°C to +85°C
PIN DESCRIPTIONS
L0, L1 - Low End of Resistor
H0, H1 - High End of Resistor
W0, W1 - Wiper Terminal of Resistor
VB
SOUT
- Substrate Bias Voltage
- Stacked Configuration Output
RST - Serial Port Reset Input
DQ - Serial Port Data Input
CLK - Serial Port Clock Input
COUT - Cascade Port Output
VCC - +5 Volt Supply
GND - Ground
NC - No Internal Connection
PIN ASSIGNMENT
VB
NC
H1
L1
W1
RST
CLK
GND
1
2
3
4
5
6
7
8
16 VCC
15 NC
14 SOUT
13 W0
12 H0
11 L0
10 COUT
9 DQ
16-Pin SOIC (300-mil)
See Mech. Drawings Section
VB
H1
L1
W1
RST
CLK
GND
1
2
3
4
5
6
7
14 VCC
13 SOUT
12 W0
11 H0
10 L0
9 COUT
8 DQ
14-Pin DIP (300-mil)
See Mech. Drawings Section
1 of 12
VB 1
NC 2
H1 3
20 VCC
19 NC
18 NC
L1 4
W1 5
17 SOUT
16 W0
RST
6
15 H0
CLK
NC
NC
GND
7
8
9
10
14 L0
13 COUT
12 NC
11 DQ
20-Pin TSSOP (173-mil)
102199
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Pages | Pages 12 | ||
Télécharger | [ DS1267 ] |
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