M41T00SC64 Просмотр технического описания (PDF) - STMicroelectronics
Номер в каталоге
Компоненты Описание
производитель
M41T00SC64 Datasheet PDF : 19 Pages
| |||
M41T00SC64
DC and AC parameters
Figure 6. AC Bus timing requirements sequence (serial RTC)
SDA
tBUF
SCL
P
tHD:STA
tR
tF
tHIGH
S
tLOW
tSU:DAT
tHD:DAT
tHD:STA
tSU:STA
SR
tSU:STO
P
AI00589
Table 7. AC characteristics, (serial RTC, M41T00S)
Symbol
Parameter (1)
Min
Max
Unit
fSCL SCL clock frequency
0
400
kHz
tLOW Clock low period
1.3
µs
tHIGH Clock high period
600
ns
tR SDA and SCL rise time
300
ns
tF SDA and SCL fall time
300
ns
tHD:STA
START condition hold time
(after this period the first clock pulse is generated)
600
ns
tSU:STA
START condition setup time
(only relevant for a repeated start condition)
600
ns
tSU:DAT Data setup time
100
ns
tHD:DAT(2) Data hold time
0
µs
tSU:STO STOP condition setup time
600
ns
tBUF
Time the bus must be free before a new transmission
can start
1.3
µs
tLP
Low-pass filter input time constant (SDA and SCL) for
Serial RTC
50
ns
1. Valid for ambient operating temperature: TA = –40 to 85°C; VCC = 2.7 to 5.5V (except where noted).
2. Transmitter must internally provide a hold time to bridge the undefined region (300ns max.) of the falling
edge of SCL.
13/19
Share Link: 