RTC-58323 EPSON [Epson Company], RTC-58323 Datasheet - Page 8

• Manufacturer Part Number: RTC-58323
• Description: Real time clock module(4-bit I/O CONNECTION REAL TIME CLOCK MODULE)
• Manufacturer: EPSON [Epson Company]

6. Timing chart
7. Data hold timing
CS
CS
D
Address write
Write
Read
Address bus in IC
Data bus in IC
V
CS
IC can interact
with external circuit
DD
0
to D
1
2
1
3
V
IH2
VI
L
t
CDR
t
CS
t
AS
4.5V
CS2 or WR must not be activated.
Address
t
AW
Data hold mode
Page - 5
CS
2.2 to 4.5V
t
AH
1
t
DS
0.8V
Data-write
t
WW
4.5V
t
DH
t
RI
Data-read
t
RA
Data invalid
t
R
Data valid
VI
L
t
DD
IC can interact
with external circuit
High impedance
V
IH2
t
CH
EPSON