DS1689S+T&R-W Maxim Integrated, DS1689S+T&R-W Datasheet - Page 27

• Manufacturer Part Number: DS1689S+T&R-W
• Description: Real Time Clock
• Manufacturer: Maxim Integrated

Specifications of DS1689S+T&R-W

• Rohs: yes

RTC AC TIMING CHARACTERISTICS—5V
(Over the operating range.)
DS1689/DS1693 BUS TIMING FOR WRITE CYCLE TO RTC AND RTC
REGISTERS
Cycle Time
Pulse Width, RD/WR Low
Pulse Width, RD/WR High
Input Rise and Fall Time
Chip-Select Setup Time Before WR or RD
Chip-Select Hold Time
Read-Data Hold Time
Write-Data Hold Time
Muxed Address Valid Time to ALE Fall
Muxed Address Hold Time from ALE Fall
RD or WR High Setup to ALE Rise
Pulse Width, ALE High
ALE Low Setup to RD or WR Fall
Output Data Delay Time from RD
Data Setup Time
IRQ Release from RD
CEI to CEO Delay
PARAMETER
SYMBOL
PW
PW
PW
t
t
t
t
t
t
t
t
t
t
t
ASED
t
R
DHW
t
DSW
CYC
t
DHR
AHL
DDR
ASD
CED
ASL
IRD
CH
CS
27 of 36
, t
RWH
RWL
ASH
F
MIN
305
125
150
100
20
10
30
10
25
60
40
20
0
0
TYP
MAX UNITS
120
DC
30
80
10
2
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTES
9