參數(shù)資料
型號: M41T56C64MY6F
廠商: 意法半導(dǎo)體
英文描述: Serial Real Time Clock with 56 bytes of NVRAM+64 Kbit (8192 bit x 8) EEPROM
中文描述: 串行實(shí)時(shí)時(shí)鐘與56字節(jié)的NVRAM 64千位(8192位× 8)的EEPROM
文件頁數(shù): 13/19頁
文件大小: 110K
代理商: M41T56C64MY6F
M41T56C64
DC and AC parameters
13/19
Figure 6.
AC Bus timing requirements sequence (serial RTC)
Table 7. AC characteristics, (serial RTC, M41T56)
Symbol
Parameter
(1)
1.
Valid for ambient operating temperature: T
A
= –40 to 85°C; VCC = 4.5 to 5.5V (except where noted).
Transmitter must internally provide a hold time to bridge the undefined region (300ns max.) of the falling
edge of SCL.
Min
Max
Unit
f
SCL
SCL clock frequency
0
100
kHz
t
LOW
Clock low period
4.7
μs
t
HIGH
Clock high period
4
μs
t
R
SDA and SCL rise time
1
μs
t
F
SDA and SCL fall time
300
ns
t
HD:STA
START condition hold time
(after this period the first clock pulse is generated)
4
μs
t
SU:STA
START condition setup time
(only relevant for a repeated start condition)
4.7
μs
t
SU:DAT
Data setup time
250
ns
t
HD:DAT(2)
2.
Data hold time
0
μs
t
SU:STO
STOP condition setup time
4.7
μs
t
BUF
Time the bus must be free before a new transmission
can start
4.7
μs
t
LP
Low-pass filter input time constant (SDA and SCL) for
Serial RTC
0.25
1
μs
AI00589
SDA
P
tSU:STO
tSU:STA
tHD:STA
SR
SCL
tSU:DAT
tF
tHD:DAT
tR
tHIGH
tLOW
tHD:STA
tBUF
S
P
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