M48T37Y-70MH1E STMicroelectronics, M48T37Y-70MH1E Datasheet - Page 22

• Manufacturer Part Number: M48T37Y-70MH1E
• Description: IC TIMEKPR NVRAM 256KBIT5V 44SOH
• Manufacturer: STMicroelectronics
• Series: Timekeeper®r
• Type: Clock/Calendar/NVSRAMr

Specifications of M48T37Y-70MH1E

• Memory Size: 256K (32K x 8)
• Time Format: HH:MM:SS (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 44-SOH
• Bus Type: Parallel
• User Ram: 32KB
• Operating Supply Voltage (typ): 5V
• Package Type: SOH
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Operating Temperature Classification: Commercial
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Pin Count: 44
• Mounting: Surface Mount
• Memory Configuration: 32K X 8
• Nvram Features: RTC
• Interface Type: Parallel
• Access Time: 70ns
• Supply Voltage Range: 4.5V To 5.5V
• Memory Case Style: SOIC
• No. Of Pins: 44
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2854-5; M48T37Y-70MH1

M48T37Y, M48T37V
Table 11. DC Characteristics
Note: 1. Valid for Ambient Operating Temperature: T
22/29
Symbol
V
I
V
I
I
I
LO
V
OH
LI
I
CC1
CC2
V
CC
IL
OL
IH
(2)
2. Outputs deselected.
3. Negative spikes of –1V allowed for up to 10ns once per cycle.
(2)
(3)
(3)
Input Leakage Current
Output Leakage Current
Supply Current
Supply Current (Standby) TTL
Supply Current (Standby)
CMOS
Input Low Voltage
Input High Voltage
Output Low Voltage
(standard)
Output Low Voltage
(open drain)
Output High Voltage
Parameter
Test Condition
0V
0V
E = V
A
Outputs open
I
I
I
OL
= 0 to 70°C or –40 to 85°C; V
OH
OL
E = V
V
V
= 2.1mA
CC
= 10mA
= –1mA
OUT
IN
– 0.2V
IH
V
V
CC
CC
(1)
–0.3
Min
2.2
2.4
M48T37Y
CC
–70
= 4.5 to 5.5V or 3.0 to 3.6V (except where noted).
V
CC
Max
0.8
0.4
0.4
±1
±1
50
3
3
+ 0.3
–0.3
Min
2.2
2.4
M48T37V
–100
V
CC
Max
0.8
0.4
0.4
±1
±1
33
2
2
+ 0.3
Unit
mA
mA
mA
µA
µA
V
V
V
V
V