PT6315-SL PTC [Princeton Technology Corp], PT6315-SL Datasheet

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PT6315-SL

Manufacturer Part Number
PT6315-SL
Description
VFD Driver/Controller IC
Manufacturer
PTC [Princeton Technology Corp]
Datasheet
VFD Driver/Controller IC
DESCRIPTION
PT6315-S is a Vacuum Fluorescent Display (VFD) Controller driven on a 1/4 to 1/8 duty factor. Eight
segment output lines, 4 grid output lines, 4 segment/grid output drive lines, one display memory,
control circuit, key scan circuit are all incorporated into a single chip to build a highly reliable peripheral
device for a single chip micro computer. Serial data is fed to PT6315-S via a three-line serial interface.
It is housed in a 28pins, SOP.
FEATURES
APPLICATION
PT6315-S V1.9
• CMOS Technology
• Low Power Consumption
• Key Scanning (8 x 2 matrix)
• Multiple Display Modes: (8 Segments, 8 Digits to 12 Segments, 4 Digits)
• 8-Step Dimming Circuitry
• Serial Interface for Clock, Data Input, Data Output, Strobe Pins
• No External Resistors Needed for Driver Outputs
• Available in 28pins, SOP
• Microcomputer Peripheral Devices
- 1 -
URL: http://www.princeton.com.tw
Fax: 886-2-29174598
Tel: 886-2-66296288
September, 2005
PT6315-S

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PT6315-SL Summary of contents

Page 1

... Serial data is fed to PT6315-S via a three-line serial interface housed in a 28pins, SOP. ...

Page 2

... VFD Driver/Controller IC BLOCK DIAGRAM DIN DOUT Serial Data CLK Interface STB OSC OSC R PT6315-S V1.9 Control Display Memory Timing Generator Key Matrix Memory Dimming Circuit K1 K2 VDD GND - 2 - Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Segment Driver/ Grid Driver/ Key Scan ...

Page 3

... VFD Driver/Controller IC PIN CONFIGURATION CLK STB VSS VDD SG1/KS1 SG2/KS2 SG3/KS3 SG4/KS4 SG5/KS5 SG6/KS6 SG7/KS7 SG8/KS8 PT6315-S V1 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT6315-S DIN ...

Page 4

... VDD SG1/KS1 to SG8/KS8 VEE SG9/GR8 to SG12/GR5 GR4 to GR1 OSC DOUT DIN PT6315-S V1.9 I/O Description Clock Input Pin This pin reads serial data at the rising I edge and outputs data at the falling edge. Serial Interface Strobe Pin The data input after the STB I has fallen is processed as a command. When this pin is “ ...

Page 5

... PT6315-S provides 4 display mode settings as shown in the diagram below: As stated earlier a command is the first one byte (b0 to b7) transmitted to PT6315-S via the DIN Pin when STB is “LOW”. However, for these commands, the bits (b4 to b5) are ignored, bits 7 & 8 (b6 to b7) are given a value of “ ...

Page 6

... VFD Driver/Controller IC Display Mode and RAM Address Data transmitted from an external device to PT6315-S via the serial interface are stored in the Display RAM and are assigned addresses. The RAM Addresses of PT6315-S are given below in 8 bits unit. SG1 00H 03H 06H 09H ...

Page 7

... VFD Driver/Controller IC COMMAND 2: DATA SETTING COMMANDS The Data Setting Commands executes the Data Write or Data Read Modes for PT6315-S. The Data Setting Command, the bits 5 and 6 (b4, b5) are ignored, bit 7 (b6) is given the value of “1” while bit 8 (b7) is given the value of “0”. Please refer to the diagram below. ...

Page 8

... VFD Driver/Controller IC PT6315-S Key Matrix & Key Input Data Storage RAM PT6315-S Key Matrix consists array as shown below Each data entered by each key is stored as follows. They are read by a READ Command, starting from the last significant bit. When the most significant bit of the data (SG8, b7) has been read, the least significant bit of the next data (SG0, b1) is read. K1… ...

Page 9

... Please refer to the diagram below. When the power is turned ON, a 1/16 pulse width is selected and the displayed is turned OFF (the key scanning is stopped). MSB Not Relevant PT6315-S V1.9 LSB Address: 00H to 1DH LSB Dimming Quantity Settings: 000: Pulse width = 1/16 001: Pulse width = 2/16 010: Pulse width = 4/16 011: Pulse width = 10/16 100: Pulse width – ...

Page 10

... The data of the matrix is stored in the RAM. Internal Operating Frequency (fosc) = 224 500 s DIS Output DIG1 PT6315-S V1.9 µ DIG2 DIG3 1 F rame = LAY - 10 - Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw ...

Page 11

... VFD Driver/Controller IC SERIAL COMMUNICATION FORMAT The following diagram shows the PT6315-S serial communication format. The DOUT Pin is an N-channel, open-drain output pin, therefore highly recommended that an external pull-up resistor (1KΩ to 10KΩ) must be connected to DOUT. RECEPTION (DATA/COMMAND WRITE ...

Page 12

... VFD Driver/Controller IC SWITCHING CHARACTERISTIC WAVEFORM PT6315-S Switching Characteristics Waveform is given below. fosc OSC CLK DIN DOUT t THZ TZH1 where: PW CLK (Clock Pulse Width) ≥ 400ns tsetup (Data Setup Time) ≥ 100ns tCLK-STB (Clock - Strobe Time) ≥ 1us tTZH2 (Grid Rise Time) ≤ ...

Page 13

... The following diagram shows the waveforms when updating specific addresses CLK DIN Co mm and 2 Where: Command 2: Data Setting Command Command 3: Address Setting Command Data: Display Data PT6315-S V1 and and Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw ...

Page 14

... Command 3: Address Setting Commands 4. Command 4: Display Control Commands 5. When IC power is applied for the first time, the contents of the Display RAM are not defined; thus strongly suggested that the contents of the Display RAM be cleared during the initial setting. PT6315-S V1.9 START Delay 200 ms SET ...

Page 15

... VFD Driver Output Current Operating Temperature Storage Temperature RECOMMENDED OPERATING RANGE (Unless otherwise stated, Ta=-25 ℃ , GND=0V) Parameter Logic Supply Voltage High-Level Input Voltage Low-Level Input Voltage Driver Supply Voltage PT6315-S V1.9 Symbol Ratings VDD -0 VEE VDD +0.5 to VDD -40 VI -0.5 to VDD +0.5 VO VEE -0.5 to VDD +0.5 ...

Page 16

... VDD=3.3V, GND=0V, VEE=VDD-35V, Ta=25 ℃ ) Parameter Low-Level Output Voltage High-Level Output Current High-Level Output Current High-Level Input Voltage Low-Level Input Voltage Oscillation Frequency Input Current Dynamic Current Consumption PT6315-S V1.9 Symbol Test Condition DOUT, VOLDOUT IOLDOUT=4mA VO=VDD -2V IOHSG SG1/KS1 to SG8/KS8 VO=VDD -2V IOHGR GR1 to GR4, SG9/GR8 to SG12/GR5 ...

Page 17

... VFD Driver/Controller IC APPLICATION CIRCUIT MCU VDD 10K 10K PT6315-S V1.9 VDD 10K DIN CLK DOUT STB 10 0K OSC K1 VSS K2 0.1 F µ VDD VSS VDD GR1 VDD GR2 SG1/KS1 GR3 SG2/KS2 GR4 SG3/KS3 SG12/GR5 SG4/KS4 SG11/GR6 SG5/KS5 SG10/GR7 SG6/KS6 SG9/GR8 SG7/KS7 ...

Page 18

... VFD Driver/Controller IC ORDER INFORMATION Order Part Number PT6315-S PT6315-S (L) Notes: 1. (L), (C) or (S) = Lead Free. 2. The Lead Free mark is put in front of the date code. PT6315-S V1.9 Package Type 28 Pins, SOP, 300mil 28 Pins, SOP, 300mil - 18 - Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw ...

Page 19

... VFD Driver/Controller IC PACKAGE INFORMATION 28 PINS, SOP, 300 MIL PT6315-S V1 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT6315-S September, 2005 ...

Page 20

... The lead width “B” as measured 0.36 mm (0.014 in) or greater above the seating plane, shall not exceed a maximum value of 0.61 mm (0.24 in). 8. Controlling dimension: MILLIMETER. 9. Refer to JEDEC MS-013 Variation AE JEDEC is the trademark of the JEDEC SOLID STATE TECHNOLOGY ASSOCIATION PT6315-S V1.9 Min. Nom. 2.35 0.10 0.33 ...

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