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PT6520 V1.6

- 20 -

February, 2006

LCD Driver IC

PT6520

Parameter

Symbol

Condition

Min

Typ

Max

Unit

Applicable

Pin

Rf=1M

Ω ±5%

VSS=-5.0V

12

17

21

Oscillation frequency

Fosc

Rf=1M

Ω ±5%

VSS=-3.0V

11

16

21

KHz

OSC2

(Notes 5, 6)

Hysteresis

VH

0.05VSS 0.1VSS

-

V

(Notes 2, 3,

4, 5)

Notes:

1. A wide range of operating voltages is guaranteed, except in case of abrupt voltage fluctuations

during MPU access.

2. A0, D0~D7, E, R/W pins

3. CL, FR, M/S and RES pins

4. D0~D7

5. FR

6. A0, E (or RD), R/W (or WR), M/S and RES.

7. When D0 to D7 and FR are high impedance.

8. During continual writer access at a frequency of tcyc. Current consumption during access is

effectively proportional to the access frequency.

9. For a voltage differential of 0.1V between input (V1, …, V4) and output (COM, SEG) pins. All

voltages within specified operating voltage range.

10. PT6520 only. Does not include transient currents due to stray and panel capacitances.