M48T35-70PC1 STMicroelectronics, M48T35-70PC1 Datasheet - Page 25

• 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
7
Caution:
Part numbering
Table 16.
Example:
Device type
M48T
Supply voltage and write protect voltage
35
35Y
Speed
–70 = 70 ns
Package
PC = PCDIP28
MH
Temperature range
1 = 0 to 70 °C
6
Shipping method
For SOH28:
E = ECOPACK
F = ECOPACK
For PCDIP28:
blank = ECOPACK
1. The M48T35 part is offered only in the PCDIP28 (i.e. CAPHAT™) package.
2. The M48T35Y is available only in the SOH28 (i.e. SNAPHAT SOIC) package.
3. The SOIC package (SOH28) requires the SNAPHAT
4. Temperature grade 6 (–40 to +85 °C) devices are not for new design. Contact ST sales office
Do not place the SNAPHAT battery package “M4TXX-BR12SH” in conductive foam as it will
drain the lithium button-cell battery.
For other options, or for more information on any aspect of this device, please contact the
ST sales office nearest you.
Table 17.
(4)
(1)
(3)
separately under the part number “M4TXX-BR12SH” (see
for availability.
(2)
= –40 to 85 °C
M4T28-BR12SH
M4T32-BR12SH
= V
= SOH28
= V
Part number
CC
CC
= 4.75 to 5.5 V; V
= 4.5 to 5.5 V; V
Ordering information scheme
SNAPHAT
®
®
package, tape & reel
package, tubes
®
package, tubes
®
Lithium battery (48 mAh) SNAPHAT
Lithium battery (120 mAh) SNAPHAT
battery table
PFD
PFD
= 4.5 to 4.75 V
= 4.2 to 4.5 V
Doc ID 2611 Rev 9
M48T
Description
®
battery package which is ordered
35
Table 17 on page
–70
®
®
PC
25).
1
Part numbering
Package
E
SH
SH
25/28