M48T35-70PC1 STMicroelectronics, M48T35-70PC1 Datasheet - Page 19

• Manufacturer Part Number: M48T35-70PC1
• Description: IC TIMEKPR NVRAM 256KBIT 5V 28DI
• Manufacturer: STMicroelectronics
• Series: Timekeeper®r
• Type: Clock/Calendar/NVSRAMr

Specifications of M48T35-70PC1

• Memory Size: 256K (32K 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/Watchdog Timer/Battery Backup
• Rtc Memory Size: 32768 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
• Bus Type: Parallel
• User Ram: 32KB
• Operating Supply Voltage (typ): 5V
• Package Type: PCDIP
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.75V
• Operating Temperature Classification: Commercial
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Pin Count: 28
• Mounting: Through Hole
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2845-5

M48T35, M48T35Y
Table 9.
1. Valid for ambient operating temperature: T
2. Outputs deselected.
Figure 12. Power down/up mode AC waveforms
Symbol
I
I
I
V
LO
V
V
I
CC1
CC2
V
noted).
I
CC
OH
OL
LI
IH
IL
(2)
V CC
V PFD (max)
V PFD (min)
V SO
INPUTS
OUTPUTS
Supply current (standby)
Supply current (standby)
Output leakage current
DC characteristics
Input leakage current
Output high voltage
Output low voltage
Input high voltage
Input low voltage
Supply current
Parameter
tPD
CMOS
(PER CONTROL INPUT)
TTL
VALID
RECOGNIZED
tF
A
0 V ≤ V
Test condition
0 V ≤ V
E = V
= 0 to 70 or –40 to 85 °C; V
tFB
Outputs open
I
I
OL
OH
E = V
= 2.1 mA
CC
Doc ID 2611 Rev 9
= –1 mA
OUT
IN
– 0.2 V
≤ V
IH
≤ V
CC
CC
(1)
tDR
DON'T CARE
HIGH-Z
–0.3
Min
2.2
2.4
CC
M48T35
= 4.75 to 5.5 V or 4.5 to 5.5 V (except where
tRB
V
CC
Max
0.8
0.4
±1
±1
50
3
2
+ 0.3
DC and AC parameters
tR
–0.3
Min
2.2
2.4
(PER CONTROL INPUT)
M48T35Y
trec
RECOGNIZED
VALID
V
CC
Max
0.8
0.4
±1
±1
30
3
2
+ 0.3
AI01168C
Unit
19/28
mA
mA
mA
µA
µA
V
V
V
V