ICM7244 INTERSIL [Intersil Corporation], ICM7244 Datasheet - Page 5

• Manufacturer Part Number: ICM7244
• Description: 8-Character, Microprocessor Compatible, 8-Character, Microprocessor Compatible,
• Manufacturer: INTERSIL [Intersil Corporation]

Timing Waveforms
CHARACTERS
DISPLAY FULL
INTER-CHARACTER
SIGNALS
DRIVE
CLEAR
SEN
WR
BLANKING
INTERNAL
SIGNAL
CHAR 1
CHAR 2
CHAR 3
CHAR 4
CHAR 5
CHAR 6
CHAR 7
CHAR 8
5
FIGURE 3. DISPLAY CHARACTERS MULTIPLEX TIMING DIAGRAM
FIGURE 2. SEQUENTIAL ACCESS MODE TIMING (MODE = 1)
ADDRESS
~
WRITE
5µs
DATA
CS
FIGURE 1. RANDOM ACCESS TIMING
t
T
CHAR
t
t
AS
SEN
VALID
~
1
300µs
ICM7244
ICM7244
t
AH
t
CS
CHAR
t
WPI
t
2
DS
VALID
t
WC
t
DH
t
t
T
WHP
CHAR
8
INTER-CHARACTER BLANKING
t
t
WPH
WDF
January 22, 2009
FN6675.1