MCP7940NT-I/SN Microchip Technology, MCP7940NT-I/SN Datasheet - Page 4

• Manufacturer Part Number: MCP7940NT-I/SN
• Description: Real Time Clock I2C GP RTCC 64B SRAM
• Manufacturer: Microchip Technology
• Series: -r
• Type: Clock/Calendarr

Specifications of MCP7940NT-I/SN

• Features: Alarm, Leap Year, SRAM
• Memory Size: 64B
• Time Format: HH:MM:SS (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C
• Voltage - Supply: 1.8 V ~ 5.5 V
• Voltage - Supply, Battery: 1.3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MCP7940N
TABLE 1-2:
DS25010A-page 4
AC CHARACTERISTICS
Param.
1
2
3
4
5
6
7
8
9
10
11
12
13
Note 1: Not 100% tested.
No.
2: The combined T
F
T
T
T
T
T
T
T
T
T
T
T
T
Symbol
noise spike suppression. This eliminates the need for a T
SU
SU
SU
AA
SP
R
CLK
HIGH
LOW
F
HD
HD
BUF
:
:
:
:
:
STA
DAT
STO
STA
DAT
AC CHARACTERISTICS
Clock frequency
Clock high time
Clock low time
SDA and SCL rise time
(Note
SDA and SCL fall time
(Note
Start condition hold time
Start condition setup time
Data input hold time
Data input setup time
Stop condition setup time
Output valid from clock
Bus free time: Time the bus
must be free before a new
transmission can start
Input filter spike suppression
(SDA and SCL pins)
1)
1)
SP
Characteristic
and V
HYS
specifications are due to new Schmitt Trigger inputs, which provide improved
Electrical Characteristics:
Industrial (I):
4000
4700
1300
4000
4700
4000
4700
1300
Min.
600
600
600
250
100
600
—
—
—
—
—
—
—
—
—
0
Max.
1000
1000
3500
100
400
300
300
900
50
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
I
V
specification for standard operation.
CC
= +1.8V to 5.5V
Units
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
1.8V  V
2.5V  V
1.8V  V
2.5V  V
1.8V  V
2.5V  V
1.8V  V
2.5V  V
1.8V  V
2.5V  V
1.8V  V
2.5V  V
1.8V  V
2.5V  V
1.8V  V
2.5V  V
1.8V  V
2.5V  V
1.8V  V
2.5V  V
1.8V  V
2.5V  V
(Note 1
 2011 Microchip Technology Inc.
and
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
T
Conditions
A
< 2.5V
 5.5V
< 2.5V
 5.5V
< 2.5V
 5.5V
< 2.5V
 5.5V
< 2.5V
 5.5V
< 2.5V
 5.5V
< 2.5V
 5.5V
< 2.5V
 5.5V
< 2.5V
 5.5V
< 2.5V
 5.5V
< 2.5V
 5.5V
= -40°C to +85°C
Note
2)