M41T94MH6F STMicroelectronics, M41T94MH6F Datasheet - Page 31

• 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

M41T94
Figure 17. Power down/up mode AC waveforms
Table 15.
1. Valid for ambient operating temperature: T
2. V
3. V
4. Programmable (see
5. At 25°C, V
Symbol
t
V CC
V PFD (max)
V PFD (min)
V SO
INPUTS
RST
OUTPUTS
REC
t
until 200 µs after V
t
FB
t
t
F
PFD
PFD
t
RB
DR
(2)
R
(3)
(4)
(min) to V
(max) to V
V
V
V
V
Power up deselect time
Expected data retention time
CC
Power down/up AC characteristics
PFD
PFD
PFD
SS
= 0 V (when using SOH28 + M4T28-BR12SH SNAPHAT
SS
(PER CONTROL INPUT)
to V
PFD
(min) to V
(max) to V
(min) to V
fall time of less than t
CC
VALID
PFD
(min) fall time of less than t
Table 8 on page
RECOGNIZED
passes V
tF
(min) V
SS
PFD
PFD
Parameter
V
PFD
(max) V
CC
CC
(min) V
(min).
fall time
rise time
27).
tFB
FB
CC
CC
(1)
A
may cause corruption of RAM data.
= –40 to 85°C; V
rise time
fall time
F
may result in deselection/write protection not occurring
tDR
DON'T CARE
HIGH-Z
CC
= 2.7 to 5.5 V (except where noted).
10
Min
300
10
10
40
tRB
1
(5)
®
top).
DC and AC parameters
Typ
tR
Max
200
(PER CONTROL INPUT)
tREC
RECOGNIZED
VALID
YEARS
Unit
AI03687
ms
µs
µs
µs
µs
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