ds4520etrl Maxim Integrated Products, Inc., ds4520etrl Datasheet - Page 3

• Manufacturer Part Number: ds4520etrl
• Description: Ds4520 9-bit I?c Nonvolatile I/o Expander Plus Memory
• Manufacturer: Maxim Integrated Products, Inc.

AC ELECTRICAL CHARACTERISTICS (See Figure 2)
(V
NONVOLATILE MEMORY CHARACTERISTICS
(V
Note 1: All voltages referenced to ground.
Note 2: I
Note 3: The DS4520 does not obstruct the SDA and SCL lines if V
Note 4: Guaranteed by design.
Note 5: Timing shown is for fast-mode (400kHz) operation. This device is also backward compatible with I
Note 6: C
Note 7: EEPROM write time applies to all the EEPROM memory and SRAM shadowed EEPROM memory when SEE = 0. The EEPROM
SCL Clock Frequency
Bus Free Time Between Stop and
Start Conditions
Hold Time (Repeated) Start
Condition
Low Period of SCL
High Period of SCL
Data Hold Time
Data Setup Time
Start Setup time
SDA and SCL Rise Time
SDA and SCL Fall Time
Stop Setup Time
SDA and SCL Capacitive Loading
EEPROM Write Time
EEPROM Writes
CC
CC
= +2.7V to +5.5V; T
= +2.7V to +5.5V, unless otherwise noted.)
do not violate their minimum and maximum input voltage levels.
write time begins after a stop condition occurs.
STBY
B
PARAMETER
PARAMETER
—total capacitance of one bus line in picofarads.
is specified with SDA = SCL = V
A
= -40°C to +85°C, unless otherwise noted. Timing referenced to V
SYMBOL
SYMBOL
t
t
t
t
t
HD:STA
HD:DAT
SU:DAT
SU:STO
SU:STA
t
t
f
t
HIGH
LOW
t
SCL
BUF
C
WR
t
t
R
F
B
_____________________________________________________________________
CC
, outputs floating, and inputs connected to V
(Note 5)
(Note 6)
(Note 6)
(Note 6)
(Note 7)
+70°C (Note 4)
I/O Expander Plus Memory
CONDITIONS
CONDITIONS
CC
is switched off as long as the voltages applied to these inputs
9-Bit I
20 + 0.1C
20 + 0.1C
50,000
MIN
MIN
100
1.3
0.6
1.3
0.6
0.6
0.6
0
0
IL(MAX)
2
CC
B
B
C Nonvolatile
or GND.
TYP
TYP
and V
10
IH(MIN)
2
C standard-mode timing.
MAX
MAX
400
300
300
400
0.9
20
.)
UNITS
UNITS
kHz
ms
µs
µs
µs
µs
µs
ns
µs
ns
ns
µs
pF
3