DS2223 Dallas Semiconducotr, DS2223 Datasheet - Page 10

• Manufacturer Part Number: DS2223
• Description: EconoRAM
• Manufacturer: Dallas Semiconducotr

AC ELECTRICAL CHARACTERISTICS
AC ELECTRICAL CHARACTERISTICS
NOTES:
1. All voltages are referenced to ground.
2. V
3. Input pull–down resistance to ground.
4. @ V
5. 36 nanocoulombs per 264 time slots @ 1.5V (see Figure 6).
6. See Figure 7 for typical values over temperature.
7. @ V
8. Read data setup time refers to the time the host must pull the 1–Wire line low to read a bit. Data is guaran-
DS2223/DS2224
080598 10/10
PARAMETER
Time Slot
Read Data Valid
Release Time
Write 1 Low Time
Write 0 Low Time
Data Setup Time
Recovery Time
PARAMETER
Time Slot
Read Data Valid
Release Time
Write 1 Low Time
Write 0 Low Time
Data Setup Time
Recovery Time
teed to be valid within 1 s of this falling edge and will remain valid for 14 s minimum (15 s total from falling
edge on the 1–Wire line).
PUP
OL
OL
= external pull–up voltage to system sypply.
=0.4V
=0.2V
SYMBOL
SYMBOL
t
t
RELEASE
RELEASE
t
t
t
t
t
t
t
LOW1
LOW0
t
t
LOW1
LOW0
t
SLOT
SLOT
RDV
REC
RDV
REC
t
t
SU
SU
MIN
MIN
70
60
60
60
0
1
1
0
1
1
exactly 15
exactly 15
TYP
TYP
15
15
(–40 C to +85 C; V
(–40 C to +85 C; V
MAX
MAX
45
15
45
15
1
1
UNITS
UNITS
s
s
s
s
s
s
s
CC
s
s
s
s
s
s
s
CC
=2.0V to 5.5V)
=1.4V
NOTES
NOTES
8
8
10%)