DS4510 Datasheet, PDF (3/12 Pages) Maxim Integrated Products – CPU Supervisor with Nonvolatile Memory and Programmable I/O

CPU Supervisor with Nonvolatile Memory and
Programmable I/O
CPU SUPERVISOR AC ELECTRICAL CHARACTERISTICS (See Figure 1)
(V_CC = 2.7V to 5.5V, T_A = -40°C to +85°C.)
PARAMETER
RST Active Time
V_CC Detect to RST
V_CC Fail to RST
SYMBOL
t_RST
t_RPU
t_RPD
CONDITIONS
TD1= 0, TD0 = 0
TD1= 0, TD0 = 1
TD1= 1, TD0 = 0
TD1= 1, TD0 = 1
TD1= 0, TD0 = 0
TD1= 0, TD0 = 1
TD1= 1, TD0 = 0
TD1= 1, TD0 = 1
MIN TYP
112 125
225 250
450 500
900 1000
112 125
225 250
450 500
900 1000
4
MAX
138
275
550
1100
138
275
550
1100
10
UNITS
ms
ms
µs
AC ELECTRICAL CHARACTERISTICS (See Figure 5)
(V_CC = 2.7V to 5.5V, T_A = -40°C to +85°C, timing referenced to V_IL(MAX) and V_IH(MIN).)
PARAMETER
SCL Clock Frequency
Bus Free Time Between Stop and
Start Conditions
SYMBOL
f_SCL
(Note 6)
t_BUF
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
t_HD:STA
t_LOW
t_HIGH
t_HD:DAT
t_SU:DAT
t_SU:STA
t_R
t_F
t_SU:STO
C_B
(Note 7)
(Note 7)
(Note 7)
EEPROM Write Time
t_W
(Note 7)
MIN TYP MAX UNITS
0
400
kHz
1.3
µs
0.6
1.3
0.6
0
100
0.6
20 + 0.1C_B
20 + 0.1C_B
0.6
µs
µs
µs
0.9
µs
ns
µs
300
ns
300
ns
µs
400
pF
10
20
ms
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