M41T94MH6F STMicroelectronics, M41T94MH6F Datasheet - Page 30

• Manufacturer Part Number: M41T94MH6F
• Description: IC RTC SPI SRAM SER 64X8 28-SOIC
• Manufacturer: STMicroelectronics
• Type: Clock/Calendar/Alarmr

Specifications of M41T94MH6F

• Memory Size: 44B
• Time Format: HH:MM:SS:hh (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC, 28-SOH (8.48mm Width)
• Bus Type: Serial (SPI)
• User Ram: 64Byte
• Operating Supply Voltage (typ): 3.3/5V
• Package Type: SOH
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• Operating Temperature Classification: Industrial
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Pin Count: 28
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-5372-2; M41T94MH6F

DC and AC parameters
Table 13.
1. Valid for ambient operating temperature: T
2. RSTIN1 and RSTIN2 internally pulled up to V
3. Outputs deselected.
4. For rechargeable back-up, V
5. For SQW pin (CMOS).
6. For IRQ/FT/OUT, RST pins (open drain): if pulled up to supply other than V
Table 14.
1. Load capacitors are integrated within the M41T94. Circuit board layout considerations for the 32.768 kHz crystal of
2. STMicroelectronics recommends the KDS DT-38: 1TA/1TC252E127, Tuning Fork Type (thru-hole) or the DMX-26S:
30/41
Symb.
I
V
V
I
I
I
V
V
I
LO
V
LI
V
100 K
3.0 V when V
minimum trace lengths and isolation from RF generating signals should be taken into account. These characteristics are
externally supplied.
1TJS125FH2A212, (SMD) quartz crystal for industrial temperature operations. For contact information on this crystal type,
see
CC1
CC2
V
BAT
PFD
Symbol
BAT
OH
OL
SO
IH
(2)
IL
(3)
R
C
f
Section 10: References on page
0
S
L
resistor.
Battery current OSC on
Battery current OSC off
Supply current
Supply current (standby)
Input leakage current
Output leakage current
Input high voltage
Input low voltage
Battery voltage
Output high voltage
Output low voltage
Output low voltage (open drain)
Pull-up supply voltage (open drain)
Power fail deselect (THS = V
Power fail deselect (THS = V
Battery backup switchover
DC characteristics
Crystal electrical characteristics (externally supplied)
CC
Resonant frequency
Series resistance
Load capacitance
= 0 V (during battery backup mode).
Parameter
BAT
(5)
(5)
(max) may be considered V
Parameter
39.
CC
SS
A
)
)
(6)
= –40 to 85°C; V
CC
(1)(2)
through 100 K resistor. WDI internally pulled-down to V
SCL, SDI = V
T
A
RST, IRQ/FT/OUT
Test condition
0 V
0 V
= 25°C, V
I
OH
I
I
OL
OL
V
f = 2 MHz
BAT
= –1.0 mA
CC
V
= 3.0 mA
CC
= 10 mA
V
OUT
.
IN
= 3 V
= 2.7 to 5.5 V (except where noted).
CC
CC
V
– 0.3 V
= 0 V,
V
CC
CC
(1)
32.768
CC
12.5
Typ
, this supply must be equal to, or less than
0.7V
–0.3
4.20
2.55
Min
2.5
2.4
CC
Min
4.40
2.60
Typ
400
2.5
50
Max
50
V
0.3V
CC
SS
3.5
Max
4.50
2.70
500
1.4
0.4
0.4
5.5
±1
±1
2
through
+ 0.3
(4)
CC
M41T94
Unit
kHz
Unit
k
mA
mA
pF
nA
nA
µA
µA
V
V
V
V
V
V
V
V