Epson SED 1520 Series Technical Manual

Epson SED 1520 Series Technical Manual

Lcd driver with ram

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Summary of Contents for Epson SED 1520 Series

  • Page 2 Seiko Epson. Seiko Epson reserves the right to make changes to this material without notice. Seiko Epson does not assume any liability of any kind aristing out of any inaccuracies contained in this material or due to its application or use in any product or circuit and, further, there is no representation that this material is applicable to products requiring high level reliability, such as, medical products.
  • Page 3 CONTENTS Selection Guide 1. SED1510 Series 2. SED1520 Series 3. SED152A Series 4. SED1526 Series 5. SED1530 Series 6. SED1540 Series 7. SED1560 Series 8. SED1565 Series 9. SED1570 Series...
  • Page 4 SED1500 Series Selection Guide...
  • Page 5 LCD drivers with RAM for small- and medium-sized displays SED1500 series Supply voltage LCD voltage Part number range (V) range (V) SED1510D SED1510D SED1510F 0.9–6.0 1.8–6.0 SED1510F SED1511D SED1520D SED1520D SED1520F SED1520F SED1520T SED1520D SED1520D SED1520F SED1520F SED1520T SED1521D SED1521D SED1521F SED1521F SED1521T...
  • Page 6 Supply voltage LCD voltage Part number range (V) range (V) SED1560D SED1560D SED1560D SED1560D SED1560T SED1560T SED1561D SED1561D SED1561D 2.4–6.0 6.0–16.0 SED1561D SED1561T SED1561T SED1561T SED1562D SED1562D SED1562T SED1562T SED1565D SED1565D SED1565D SED1565T SED1565T SED1565T SED1566D SED1566D SED1566D 1.8–5.5 4.5–16.0 SED1566T SED1567D SED1567D...
  • Page 7 Supply voltage LCD voltage Part number range (V) range (V) SED1530D SED1530D SED1530D SED1530D SED1530T SED1531D SED1531D SED1531T 2.4–6.0 4.5–16.0 SED1532D SED1532D SED1532D SED1532D SED1532T SED1532T SED1535D Display Microprocessor Duty Segment Common RAM (bits) 1/32, 1/33 – 132 65 bits 1/64, 1/65 1/35 Frequency...
  • Page 8: Sed1520 Series

    2. SED1520 Series...
  • Page 9: Table Of Contents

    OVERVIEW ... 2-1 FEATURES ... 2-1 BLOCK DIAGRAM ... 2-2 PACKAGE OUTLINE ... 2-3 PAD ... 2-4 Pad Arrangement ... 2-4 PAD ARRANGEMENT ... 2-5 PIN DESCRIPTION ... 2-6 (1) Power Pins ... 2-6 (2) System Bus Connection Pins ... 2-6 (3) LCD Drive Circuit Signals ...
  • Page 10: Overview

    SED1522 , SED1521 SED1520 , SED1521 SED1520 , SED1522 SED1522 , SED1521 (QFP5-100pin) (QFP15-100pin) (Al-pad) (Au-bump) EPSON SED1520 Series Number Number of SEG of CMOS Duty Drivers Drivers 1/16, 1/32 1/8 to 1/32 1/8, 1/16 1/16, 1/32 1/8 to 1/32 1/8, 1/16 2–1...
  • Page 11: Block Diagram

    SED1520 Series BLOCK DIAGRAM An example of SED1520 Common counter 2–2 LCD drive circuit Display data latch circuit Display data RAM (2560-bit) Column address decoder Display timing Column address counter generator circuit Column address register Command Status decoder MPU interface EPSON...
  • Page 12: Package Outline

    Pin/Pad Number 96 to 100, 1 to 11 COM0 to COM15* SEG76 to SEG61 COM0 to 7, SEG68 to 61 COM0 to COM15* SEG76 to SEG61 COM0 to 7, SEG68 to 61 EPSON SED1520 Series SEG22 SEG23 SEG24 SEG25 SEG26 SEG27...
  • Page 13: Pad

    Bump size: (0, 0) 4.80 mm die numbers is given. These numbers are the same as the bump EPSON 4.80 7.04 0.525 mm 132 111 m ( 20 m) for mushroom model 116 92 m ( 4 m) for vertical model...
  • Page 14: Pad Arrangement

    96 to 100, 1 to 11 OSC2 COM0 to COM15 * OSC2 COM0 to 7, SEG68 to 61 OSC2 COM0 to 7, SEG68 to 61 SEG76 to SEG61 SEG76 to SEG61 EPSON SED1520 Series Name SEG3 4641 4148 SEG2 4641 4347 SEG1 4641 4547...
  • Page 15: Pin Description

    The WR signal of the 80-series MPU is entered in this pin. A signal on the data bus is fetched at the rising edge of WR signal. 2–6 Description the 68-series MPU is initialized, and when it , the 80-series MPU is initialized. The system is reset during edge EPSON MPU power pin.
  • Page 16: Lcd Drive Circuit Signals

    (to select the master LSI operation mode) or V COM output Output COM0 to COM15 Input COM31 to COM16 Output COM0 to COM7 Input COM15 to COM8 EPSON SED1520 Series and V (to select the OSC1 OSC2 Input Output Input Input...
  • Page 17: Block Description

    No dummy cycle is required at the start of a series of writes as data is transferred automatically from the input latch to its destination. 80 MPU Read display data Write display data Read status Write to internal register (command) EPSON D0 to D7 Function...
  • Page 18: Display Start Line And Line Count Registers

    Display Data RAM The display data RAM stores the LCD display data, on a 1-bit per pixel basis. The relation-ship between display data, display address and the display is shown in Figure EPSON SED1520 Series N + 3 N + 2...
  • Page 19: Common Timing Generator Circuit

    CL is used to lock the line counter to the system line scan rate. If a system uses both SED1520s or SED1522 and SED1521s they must have the same CL frequency rating. EPSON 16 17...
  • Page 20: Oscillator Circuit (Sed1520 Only)

    MPU initialization. If the MPU is not initialized by the use of RES pin during power-on, an unrecoverable MPU failure may occur. When the Reset command is issued, initialization EPSON SED1520 Series Slave chip (CS) (CL)
  • Page 21 SED1520 Series Column address = "1" D = "0" SEG pin SEG 0 2–12 Display area Figure 2 Display Data RAM Addressing EPSON...
  • Page 22 COM3 COM4 COM5 COM6 COM7 COM8 COM9 COM10 COM11 COM12 COM13 COM14 COM15 Figure 4 LCD drive waveforms example 0 1 2 3 15 0 0 1 2 3 COM0 COM1 COM2 SEG0 SEG1 COM0—SEG0 COM0—SEG1 EPSON SED1520 Series 2–13...
  • Page 23: Commands

    Display start address (0 to 31) Page (0 to 3) Column address (0 to 79) ADC ON/OFF Reset Write data Read data EPSON Function Turns display on or off. 1: ON, 0: OFF Specifies RAM line corresponding to top line of display.
  • Page 24: Command Description

    MPU. Any bit of the display data RAM can be accessed when its page address and column address are specified. The display status is not changed even when the page address is changed. This command loads the page address register. See Figure 2. Line Address Page EPSON SED1520 Series AEH, AFH C0H to DFH B8H to BBH 2–15...
  • Page 25 Writes 8-bits of data into the display data RAM, at a location specified by the contents of the column address and page address registers and then increments the column address register by one. 2–16 Column Address segment driver n. segment driver u. Write data EPSON 00H to 4FH...
  • Page 26 When using the SED1520F , SED1522F as follows: SED1520F SED1522F Read data (having a built-in oscillator) and the SED1521F SED1521F 1/32 1/16 1/16 EPSON SED1520 Series A0H, A1H A4H, A5H A8H, A9H continuously, set the duty 1/32 1/16 1/32 1/16 2–17...
  • Page 27 This command cancels read-modify-write mode and restores the contents of the column address register to their value prior to the receipt of the Read-Modify-Write command. Column address 2–18 Set Page Address Set Column Address Read-Modify-Write Dummy Read Read Data Write Data Completed? Read-Modify-Write mode is selected. EPSON Return...
  • Page 28 If the LCD drive power is generated by resistance division, the resistance and capacitance are determined by the LCD panel size. After the panel size has been determined, reduce the resistance to the level where the display quality is not affected and reduce the power consumption using the divider resistor. EPSON SED1520 Series level.
  • Page 29: Specifications

    = –3 V = –2 mA 0.2 V = –3 V = –2 mA 0.2 V = –3 V = –50 A 0.2 V EPSON Rating –8.0 to +0.3 –16.5 to +0.3 V5 to +0.3 –0.3 to +0.3 –0.3 to +0.3 –40 to +85...
  • Page 30 , …, V ) and output (COM, SEG) pins. All voltages and SED1522 only. Does not include transient currents due to only. Does not include transient currents due to stray and panel EPSON SED1520 Series Rating Unit Applicable Pin Typ.
  • Page 31 CL [kHz] Figure 5 (c) and V5 systems –15 –10 Operating voltage range –5 –2 –4 Figure 6 EPSON and V5 OSC1 OSC2 Same for 1/16 and 1/32 duties Ta=25°C V =-5V SED1522 SED1520 [M ] Figure 5 (b) duty1/32...
  • Page 32 — = 100 pF — — Rating Condition Min. — 2000 — — — = 100 pF — — EPSON SED1520 Series Unit Signal Max. — A0, CS — — WR, RD — — — D0 to D7 — Unit Signal Max.
  • Page 33 CS. E = H, not the cycle time of E. CYC6 2–24 CYC6 Condition = 100 pF — Condition — — — = 100 pF — — EPSON ACC6 Rating Unit Min. Max. 1000 — — A0, CS, R/W — — — —...
  • Page 34 — — — — –4.0 Rating Condition Min. Typ. = 100 pF — Rating Condition Min. Typ. = 100 pF — EPSON SED1520 Series Unit Signal Max. — — Unit Signal Max. — — Unit Signal Max. Unit Signal Max.
  • Page 35: Application Notes

    SED1520 Series APPLICATION NOTES MPU Interface Configuration 80 Family MPU A1 to A7 IOQR D0 to D7 2–26 Decoder SED1520F D0 to D7 RESET EPSON...
  • Page 36: Lcd Drive Interface Configuration

    (See note 1) SED1522F To LCD COM OSC1 OSC1 External clock To LCD SEG SED1520F Master OSC2 OSC1 EPSON SED1520 Series To LCD SEG To LCD COM SED1520F Slave OSC2 To LCD SEG To LCD COM SED1520F Slave To LCD SEG...
  • Page 37 Notes: 1. The duty cycle of the slave must be the same as that for the master. 2. If a system has two or more slave drivers a CMOS buffer will be required. 2–28 To LCD SEG SED1520F External clock EPSON To LCD SEG SED1521F...
  • Page 38: Lcd Panel Wiring Example

    Note: A combination of AB or AA type chip (that uses internal clocks) and 0B or 0A type chip (that uses external clocks) is NOT allowed. LCD 16 61 SED1520F LCD 16 141 SED1520F SED1521F LCD 32 202 SED1521F SED1520F EPSON SED1520 Series 2–29...
  • Page 39: Package Dimensions

    Dimensions: inches (mm) • Plastic QFP15–100 pin 2–30 0.016 1.008 (25.6 0.004 0.787 Index 0.004 0.026 (0.65 0.012 (0.30 0.016 0.630 (16.0 0.004 0.551 (14.0 Index 0.004 0.004 0.020 0.007 (0.5 (0.18 EPSON 0.004 0~12 0.110 (2.8) 0~12 0.004 0.020 (0.5 0.039(1.0)
  • Page 40 SED1520 Series area) marking (Mold, EPSON 2–31...

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