參數(shù)資料
型號(hào): STK17T88-RF45
元件分類(lèi): 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(yè)數(shù): 28/29頁(yè)
文件大?。?/td> 535K
代理商: STK17T88-RF45
8
Jan, 2008
Document Control #ML0024 Rev 2.0
STK17T88
AutoStore/POWER-UP RECALL
note i: tHRECALL starts from the time VCC rises above VSWITCH
note j: If an SRAM WRITE has not taken place since the last nonvolatile cycle, no STORE will take place
note k: Industrial Grade Devices require 15 ms MAX.
AutoStore/POWER-UP RECALL
NO.
SYMBOLS
PARAMETER
STK17T88
UNITS
NOTES
Standard
Alternate
MIN
MAX
22
tHRECALL
Power-up RECALL Duration
40
ms
i
23
tSTORE
tHLHZ
STORE
Cycle Duration
12.5
ms
j,k
24
VSWITCH
Low Voltage Trigger Level
2.65
V
25
VCCRISE
VCC Rise Time
150
μS
POWER-UP RECALL
VCC
23
tSTORE
22
tHRECALL
24
VSWITCH
AutoStore
TM
POWER DOWN
AutoStore
TM
BROWN OUT
AutoStore
TM
POWER-UP
RECALL
Read & Write Inhibited
25
tVCCRISE
23
tSTORE
22
tHRECALL
POWER-UP
RECALL
STORE
occurs only if a
SRAM write has
happened.
No STORE occurs
without at least one
SRAM write.
Note: Read and Write cycles will be ignored during STORE, RECALL and while VCC is below VSWITCH
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