AND671WGST-LED Datasheet, PDF (5/6 Pages) Purdy Electronics Corporation – Intelligent Character Display

Displays
Timing Characteristics (Ta = 25 ºC, VCC = 2.7V)
Symbol
f_OSC
f_EX
T_R, T_F
T_C
T_PW
T_R, T_F
T_AS
T_AH
T_DSW
T_H
T_C
T_PW
T_R, T_F
T_AS
T_AH
T_DOR
T_H
Characteristics
Test Condition
Min.
Internal Clock Operation
OSC Frequency
R = 75KΩ
190
External Clock Operation
External Frequency
–
125
Duty Cycle
–
45
Rise/Fall Time
–
–
Write Mode (Writing data from MPU to ST7066U)
Enable Cycle Time
Pin E
1200
Enable Plus Time
Pin E
460
Enable Rise/Fall Time
Pin E
–
Address Setup Time
Pins RS, RW, E
0
Address Hold Time
Pins RS, RW, E
10
Data Setup Time
Pins: DB0 - DB7
80
Data Hold Time
Pins: DB0 - DB7
10
Read Mode (Reading Data from ST7066U to MPU)
Enable Cycle Time
Pin E
1200
Enable Pulse Width
Pin E
480
Enable Rise/Fall Time
Pin E
–
Address Setup Time
Pins: RS, RW, E
0
Address Hold Time
Pins: RS, RW, E
10
Data Setup Time
Pins: DB0 - DB&
–
Data Hold Time
Pins: DB0 - DB7
10
Specifications
Typ.
270
270
50
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Max.
350
410
55
0.2
–
–
25
–
–
–
–
–
–
25
–
–
320
–
Units
KHz
KHz
%
μs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085
5
Tel: [phone] • Fax: [phone] • [e-mail] • www.purdyelectronics.com
6/20/11