STK17TA8-RF25TR Cypress Semiconductor Corp, STK17TA8-RF25TR Datasheet - Page 18

• Manufacturer Part Number: STK17TA8-RF25TR
• Description: IC NVSRAM 1MBIT 25NS 48SSOP
• Manufacturer: Cypress Semiconductor Corp

Specifications of STK17TA8-RF25TR

• Format - Memory: RAM
• Memory Type: NVSRAM (Non-Volatile SRAM)
• Memory Size: 1M (128K x 8)
• Speed: 25ns
• Interface: Parallel
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 48-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

RTC Register
* A binary value, not a BCD value.
0 - Not implemented, reserved for future use.
Default Settings of nonvolatile Calibration and Interrupt registers from factory
Calibration Register=00h
Interrupt Register=00h
The User should configure to desired value at startup or during operation and the value is then retained during a power failure.
[ ] designates values shipped from the factory. See
Document #: 001-52039 Rev. *A
0x1FFFF
0x1FFFE
0x1FFFD
0x1FFFC
0x1FFFB
0x1FFFA
0x1FFF9
0x1FFF8
0x1FFF7
0x1FFF6
0x1FFF5
0x1FFF4
0x1FFF3
0x1FFF2
0x1FFF1
0x1FFF0
Register
OSCEN
WIE [0]
WDS
WDF
D7
[0]
M
M
M
M
0
0
0
0
0
0
AIE [0]
10s Centuries
WDW
D6
AF
10s Years
0
0
0
0
0
0
0
10 Alarm Seconds
10 Alarm Minutes
10s Seconds
10s Minutes
10s Alarm Hours
Sign
10s Alarm Date
PFE
Cal
D5
PF
[0]
0
0
10s Day of
10s Hours
Month
BCD Format Data
Months
OSCF
“Stopping And Starting The RTC Oscillator”
10s
D4
0
0
H/L
D3
[1]
0
0
Calibration[00000]
WDT
CAL[0]
P/L [0]
Alarm Seconds
Alarm Minutes
Day of Month
D2
Alarm Hours
Alarm Day
Centuries
Seconds
Minutes
Months
Hours
Years
Day of Week
W[0]
D1
0
R[0]
D0
0
on page 15 .
Alarm, Day of Month: 01-31
Alarm, seconds: 00-59
Alarm, minutes: 00-59
Day of Month: 01-31
Alarm, hours: 00-23
Day of week: 01-07
Calibration values*
Function / Range
Centuries: 00-99
Seconds: 00-59
Minutes: 00-59
Months: 01-12
Hours: 00-23
Years: 00-99
Watchdog*
Interrupts*
Flags*
STK17TA8
Page 18 of 24
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