參數(shù)資料
型號(hào): STK17T88-RF45TR
元件分類: 時(shí)鐘/數(shù)據(jù)恢復(fù)及定時(shí)提取
英文描述: PROGRAMMABLE TIMER, PDSO48
封裝: 0.300 INCH, ROHS COMPLIANT, PLASTIC, SSOP-48
文件頁數(shù): 22/29頁
文件大小: 535K
代理商: STK17T88-RF45TR
29
STK17T88
Jan, 2008
Document Control #ML0024 Rev 2.0
Rev
Date
Change
1.5
March 2006
Removed Leaded lead finish.
1.6
July 2006
1.7
March 2007
Iout for HSB=-10uA@2.4 Volts
tEHAX, tGHAX specification of 1 ns added
tELAX, tGLAX specification deleted
tDELAY Max specification of 70 us added
tHLBL specification deleted
tSS spec of 70 uS changed from min to max.
ABE Bit Removed From Interrupt Register
Interrupt Register Initializes to 00h
Flag Bits (WDF, AF, PF) Initialize to Zero
W-bit in Flag Register Enables Writes to RTC, Alarm, Calibration, Interrupt, and Flag Registers.
Add Tape & Reel Ordering Option
Add Product Ordering Code Listing
Add Package Drawings
Reformat Entire Document
2.0
January 2008
Page 3: added thermal characteristics.
Page 5: revised recommended value verbiage.
Page 6: in the SRAM Read Cycles #1 and #2 table, revised parameter description for tELQX and
tEHQZ and changed Symbol #2 to tELEH for Read Cycle Time; updated SRAM Read Cycle #2 timing
diagram and changed title to add G controlled.
Page 9: revised the notes below the Software-Controlled Store/Recall Cycle diagram.
Page 11: in the Mode Selection table, changed column to A14-A0.
Page 12: added Stefan's revised text (italics show revision): "Refer to the DC CHARACTERISTICS
table for the size of the capacitor."
Page 13: under Hardware Store (HSB) Operation, revised first paragraph to read “The HSB pin has
a very resistive pullup...”
Page 14: added best practices section.
Revised RTC register map for registers 0x1FFF8 (D7) and 0x1FFF6 (D7, D6, D5, D3, and D2).
Page 26: added access times column to the Ordering Codes.
Parameter
Old
Value
New Value
Notes
tHRE CALL
20 ms
40 ms
Power-up RECALL duration
NVC
500K
200K
New Nonvolatile Store Cycle
Spec
DATAR
20 Years
@ 85 C
20 Years @
55 C
New Data Retention Spec
VSWITCH Min
2.55 V
No Min. Spec
SIMTEK STK17T88 Datasheet, January 2008
Copyright 2008, Simtek Corporation. All rights reserved.
This datasheet may only be printed for the expressed use of Simtek Customers. No part of the datasheet may be reproduced in any other form
or means without the express written permission from Simtek Corporation. The information contained in this publication is believed to be accu-
rate, but changes may be made without notice. Simtek does not assume responsibility for, or grant or imply any warranty, including MER-
CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE regarding this information, the product or its use. Nothing herein constitutes a
license, grant or transfer of any rights to any Simtek patent, copyright, trademark, or other proprietary right.
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