m41t315v STMicroelectronics, m41t315v Datasheet - Page 12

• Manufacturer Part Number: m41t315v
• Description: Serial Access Phantom Rtc Supervisor
• Manufacturer: STMicroelectronics

Figure 7.
Table 3.
1. Valid for ambient operating temperature: TA = –40 to 85°C; VCC = 4.5 to 5.5V (except where noted).
2. t
3. t
12/30
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
WLWH
WHAX
DVWH
WHDX
GHQZ
GLGH
ELQV
GLQV
ELQX
GLQX
EHQZ
EHAX
DVEH
EHDX
ELEH
AVAV
AVAV
WR
DH
Symbol
and t
is a function of the latter occurring edge of WE or CEI.
DS
t
t
t
t
t
t
WR
DH
t
DS
t
t
t
t
COE
t
ODO
t
t
t
OEE
t
RST
CW
OW
WC
WP
OE
WE
CEI
D
RC
CO
OE
OD
RR
Write mode waveforms
AC electrical characteristics (M41T315Y)
are functions of the first occurring edge of WE or CEI in RAM mode.
(3)
(3)
(2)
READ cycle time
CEI access time
OE access time
CEI to output low Z
OE to output low Z
CEI to output high Z
OE to output high Z
READ recovery
CEI pulse width
OE pulse width
WRITE cycle
WRITE pulse width
WRITE recovery
Data setup
Data hold time
RST pulse width
Parameter
(1)
tWP
tDS
tCW
Min
DATA INPUT STABLE
65
10
55
55
65
55
10
30
65
5
5
0
tWC
Typ
tWR
tDH
tWR
t
DH
Max
55
55
25
25
AI04261
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns