PCF8531, PCF8531U, PCF8531U/2/F1 Selling Leads, Datasheet
MFG:PHILIPS Package Cooled:07+ D/C:09+
PCF8531, PCF8531U, PCF8531U/2/F1 Datasheet download
Part Number: PCF8531
MFG: PHILIPS
Package Cooled: 07+
D/C: 09+
PCF8531, PCF8531U, PCF8531U/2/F1
- Table of contents:
Info of PCF8531
Info of PCF8531U
Info of PCF8531U/2/F1
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About PCF8531
PDF/DataSheet Download
Datasheet: PCF8531
File Size: 217136 KB
Manufacturer: PHILIPS [Philips Semiconductors]
Download : Click here to Download
About PCF8531U/2
PDF/DataSheet Download
Datasheet: PCF8531U/2
File Size: 217136 KB
Manufacturer: PHILIPS [Philips Semiconductors]
Download : Click here to Download
About PCF
PDF/DataSheet Download
Datasheet: PCF
File Size: 1246073 KB
Manufacturer: Welwyn Components Limited
Download : Click here to Download
PCF8531 Maximum Ratings
| SYMBOL | PARAMETER | MIN. | MAX. | UNIT |
| VDD1 |
logic supply voltage | -0.5 | +5.5 | V |
| VDD2, VDD3 | multiplier supply voltage | -0.5 | +4.5 | V |
| IDD | supply current | -50 | +50 | mA |
| VLCD | LCD supply voltage | -0.5 | +9.0 | V |
| ILCD | LCD supply current | -50 | +50 | mA |
| ISS | negative supply current | -50 | +50 | mA |
| VI/VO | input/output voltage (any input/output) | -0.5 | VDD + 0.5 | V |
| II | DC input current | -10 | +10 | mA |
| IO | DC output current | -10 | +10 | mA |
| Ptot | total power dissipation per package | - |
300 | mW |
| P/out | power dissipation per output | - | 30 | mW |
| Tstg | storage temperature | -65 | +150 | |
| Tj | junction temperature | - | 150 |
PCF8531 Features
` Single-chip LCD controller/driver
` 34 row and 128 column outputs
` Display data RAM 34 ´ 128 bits
` 128 icons (last row is used for icons)
` Fast mode I2C-bus interface (400 kbit/s)
` Software selectable multiplex rates: 1 : 17, 1 : 26 and 1 : 34
` Icon mode with Mux rate 1 : 2:
Featuring reduced current consumption while displaying icons only.
` On-chip:
Generation of VLCD (external supply also possible)
Selectable linear temperature compensation
Oscillator requires no external components (external clock also possible)
Generation of intermediate LCD bias voltages
Power-on reset.
` No external components required
` Software selectable bias configuration
` Logic supply voltage range VDD1 to VSS1 1.8 to 5.5 V
` Supply voltage range for on-chip voltage generator VDD2 and VDD3 to VSS1 and VSS2 2.5 to 4.5 V
` Display supply voltage range VLCD to VSS:
Normal mode 4 to 9 V
Icon mode 3 to 9 V.
` Low power consumption, suitable for battery operated systems
` CMOS compatible inputs
` Manufactured in silicon gate CMOS process.
` 34 row and 128 column outputs
` Display data RAM 34 ´ 128 bits
` 128 icons (last row is used for icons)
` Fast mode I2C-bus interface (400 kbit/s)
` Software selectable multiplex rates: 1 : 17, 1 : 26 and 1 : 34
` Icon mode with Mux rate 1 : 2:
Featuring reduced current consumption while displaying icons only.
` On-chip:
Generation of VLCD (external supply also possible)
Selectable linear temperature compensation
Oscillator requires no external components (external clock also possible)
Generation of intermediate LCD bias voltages
Power-on reset.
` No external components required
` Software selectable bias configuration
` Logic supply voltage range VDD1 to VSS1 1.8 to 5.5 V
` Supply voltage range for on-chip voltage generator VDD2 and VDD3 to VSS1 and VSS2 2.5 to 4.5 V
` Display supply voltage range VLCD to VSS:
Normal mode 4 to 9 V
Icon mode 3 to 9 V.
` Low power consumption, suitable for battery operated systems
` CMOS compatible inputs
` Manufactured in silicon gate CMOS process.
PCF8531 Typical Application
· Telecommunication systems
· Automotive information systems
· Point-of-sale terminals
· Instrumentation.
· Automotive information systems
· Point-of-sale terminals
· Instrumentation.
PCF8531 Connection Diagram
The PCF8531 is a low power CMOS LCD row/column driver, designed to drive dot matrix graphic displays at multiplex rates of 1 : 17, 1 : 26 and 1 : 34. Furthermore, it can drive up to 128 icons. All necessary functions for the display are provided in a single chip, including on-chip generation of VLCD and the LCD bias voltages, resulting in a minimum of external components and low power consumption. The PCF8531 is compatible with most microcontrollers and communicates via a two-line bidirectional bus (I2C-bus). All inputs are CMOS compatible.
Remark: The icon mode is used to save current. When only icons are displayed, a much lower operating voltage (VLCD) can be used and the switching frequency of the LCD outputs is reduced. In most applications it is possible to use VDD as VLCD.
Remark: The icon mode is used to save current. When only icons are displayed, a much lower operating voltage (VLCD) can be used and the switching frequency of the LCD outputs is reduced. In most applications it is possible to use VDD as VLCD.
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