M48T58-70PC1 STMicroelectronics, M48T58-70PC1 Datasheet - Page 24

• Manufacturer Part Number: M48T58-70PC1
• Description: IC TIMEKPR NVRAM 64KBIT 5V 28-DI
• Manufacturer: STMicroelectronics
• Series: Timekeeper®r
• Type: Clock/Calendar/NVSRAMr

Specifications of M48T58-70PC1

• Memory Size: 64K (8K x 8)
• Time Format: HH:MM:SS (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: Parallel
• Voltage - Supply: 4.75 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 28-DIP Module (600 mil), 28-EDIP
• Function: Clock/Calendar/NV Timekeeping RAM/Battery Backup
• Rtc Memory Size: 8192 Byte
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.75 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: Through Hole
• Rtc Bus Interface: Parallel
• Clock Format: HH
• Clock Ic Type: Timekeeper
• Memory Configuration: 8K X 8
• Supply Voltage Range: 4.75V To 5.5V
• Digital Ic Case Style: DIP
• No. Of Pins: 28
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2857-5

DC and AC parameters
24/33
Table 10.
1. Valid for ambient operating temperature: T
2. V
3. V
Table 11.
1. Valid for ambient operating temperature: T
2. All voltages referenced to V
3. At 25 °C, V
Symbol
Symbol
t
V
DR
V
t
noted).
until 200 µs after V
noted).
t
FB
PFD
t
t
t
F
SO
PFD
PFD
PD
t
RB
rec
R
(2)
(3)
(3)
(min) to V
(max) to V
Power-fail deselect voltage
Battery backup switchover voltage
Expected data retention time
E1 or W at V
V
V
V
V
V
CC
PFD
PFD
PFD
SS
PFD
Power down/up AC characteristics
Power down/up trip points DC characteristics
= 0 V.
to V
SS
PFD
(min) to V
(max) to V
(min) to V
(max) to inputs recognized
fall time of less than t
CC
PFD
(min) fall time of less than t
passes V
IH
(min) V
Parameter
or E2 at V
PFD
SS
SS
PFD
.
V
PFD
(max) V
CC
CC
(min) V
Parameter
Doc ID 2412 Rev 7
(min).
fall time
rise time
(1)(2)
IL
FB
before power down
CC
CC
A
A
may cause corruption of RAM data.
= 0 to 70 °C; V
= 0 to 70 °C; V
rise time
fall time
(1)
M48T58Y
F
M48T58
may result in deselection/write protection not occurring
CC
CC
M48T58Y
M48T58
= 4.75 to 5.5 V or 4.5 to 5.5 V (except where
= 4.75 to 5.5 V or 4.5 to 5.5 V (except where
Min
4.5
4.2
7
4.35
Typ
Min
300
4.6
3.0
10
10
10
40
0
1
M48T58, M48T58Y
Max
200
Max
4.75
4.5
Years
Unit
Unit
ms
µs
µs
µs
µs
µs
µs
V
V
V