m41t94 STMicroelectronics, m41t94 Datasheet - Page 15

• Manufacturer Part Number: m41t94
• Description: Serial Real-time Clock With 44 Bytes Nvram And Reset
• Manufacturer: STMicroelectronics

Table 3.
1. Valid for ambient operating temperature: T
2. t
3. Value guaranteed by design, not 100% tested in production.
Symbol
t
t
t
t
t
t
t
CH
CHCL
CLCH
DHDL
DLDH
EHQZ
QHQL
QLQH
t
t
t
t
t
t
t
t
t
t
CHDX
CHEH
CLQV
CLQX
DVCH
EHCH
f
CH
EHEL
ELCH
CL
SCL
+ t
(2)
(2)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
CL
1/f
AC characteristics
Serial clock input frequency
Clock high
Clock transition (fall time)
Serial clock input high to input data transition
Serial clock input high to chip enable high
Clock low
Clock transition (rise time)
Serial clock input low to output valid
Serial clock input low to output data transition
Input data transition (fall time)
Input data transition (rise time)
Input data to serial clock input high
Chip enable high to serial clock input high
Chip enable high to chip enable low
Chip enable high to output high-z
Chip enable low to serial clock input high
Output data transition (fall time)
Output data transition (rise time)
SCL
Parameter
A
= –40 to 85°C; V
(1)
CC
= 2.7 to 5.5V (except where noted).
Min
200
200
200
200
200
200
DC
50
40
0
Max
150
250
100
100
2
1
1
1
1
MHz
Unit
ns
µs
ns
ns
ns
µs
ns
ns
µs
µs
ns
ns
ns
ns
ns
ns
ns
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